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gstreamer/gst/playback/gstplaybin2.c
Sebastian Dröge 53f135cec7 playbin: Send upstream events directly to playsink 
Send event directly to playsink instead of letting GstBin iterate
over all sink elements. The latter might send the event multiple times
in case the SEEK causes a reconfiguration of the pipeline, as can easily
happen with adaptive streaming demuxers.

What would then happen is that the iterator would be reset, we send the
event again, and on the second time it will fail in the majority of cases
because the pipeline is still being reconfigured
2015-10-23 12:02:28 +03:00

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/* GStreamer
* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
* Copyright (C) <2011> Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) <2013> Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-playbin
*
* Playbin provides a stand-alone everything-in-one abstraction for an
* audio and/or video player.
*
* Playbin can handle both audio and video files and features
* <itemizedlist>
* <listitem>
* automatic file type recognition and based on that automatic
* selection and usage of the right audio/video/subtitle demuxers/decoders
* </listitem>
* <listitem>
* visualisations for audio files
* </listitem>
* <listitem>
* subtitle support for video files. Subtitles can be store in external
* files.
* </listitem>
* <listitem>
* stream selection between different video/audio/subtitles streams
* </listitem>
* <listitem>
* meta info (tag) extraction
* </listitem>
* <listitem>
* easy access to the last video sample
* </listitem>
* <listitem>
* buffering when playing streams over a network
* </listitem>
* <listitem>
* volume control with mute option
* </listitem>
* </itemizedlist>
*
* <refsect2>
* <title>Usage</title>
* <para>
* A playbin element can be created just like any other element using
* gst_element_factory_make(). The file/URI to play should be set via the #GstPlayBin:uri
* property. This must be an absolute URI, relative file paths are not allowed.
* Example URIs are file:///home/joe/movie.avi or http://www.joedoe.com/foo.ogg
*
* Playbin is a #GstPipeline. It will notify the application of everything
* that's happening (errors, end of stream, tags found, state changes, etc.)
* by posting messages on its #GstBus. The application needs to watch the
* bus.
*
* Playback can be initiated by setting the element to PLAYING state using
* gst_element_set_state(). Note that the state change will take place in
* the background in a separate thread, when the function returns playback
* is probably not happening yet and any errors might not have occured yet.
* Applications using playbin should ideally be written to deal with things
* completely asynchroneous.
*
* When playback has finished (an EOS message has been received on the bus)
* or an error has occured (an ERROR message has been received on the bus) or
* the user wants to play a different track, playbin should be set back to
* READY or NULL state, then the #GstPlayBin:uri property should be set to the
* new location and then playbin be set to PLAYING state again.
*
* Seeking can be done using gst_element_seek_simple() or gst_element_seek()
* on the playbin element. Again, the seek will not be executed
* instantaneously, but will be done in a background thread. When the seek
* call returns the seek will most likely still be in process. An application
* may wait for the seek to finish (or fail) using gst_element_get_state() with
* -1 as the timeout, but this will block the user interface and is not
* recommended at all.
*
* Applications may query the current position and duration of the stream
* via gst_element_query_position() and gst_element_query_duration() and
* setting the format passed to GST_FORMAT_TIME. If the query was successful,
* the duration or position will have been returned in units of nanoseconds.
* </para>
* </refsect2>
* <refsect2>
* <title>Advanced Usage: specifying the audio and video sink</title>
* <para>
* By default, if no audio sink or video sink has been specified via the
* #GstPlayBin:audio-sink or #GstPlayBin:video-sink property, playbin will use the autoaudiosink
* and autovideosink elements to find the first-best available output method.
* This should work in most cases, but is not always desirable. Often either
* the user or application might want to specify more explicitly what to use
* for audio and video output.
*
* If the application wants more control over how audio or video should be
* output, it may create the audio/video sink elements itself (for example
* using gst_element_factory_make()) and provide them to playbin using the
* #GstPlayBin:audio-sink or #GstPlayBin:video-sink property.
*
* GNOME-based applications, for example, will usually want to create
* gconfaudiosink and gconfvideosink elements and make playbin use those,
* so that output happens to whatever the user has configured in the GNOME
* Multimedia System Selector configuration dialog.
*
* The sink elements do not necessarily need to be ready-made sinks. It is
* possible to create container elements that look like a sink to playbin,
* but in reality contain a number of custom elements linked together. This
* can be achieved by creating a #GstBin and putting elements in there and
* linking them, and then creating a sink #GstGhostPad for the bin and pointing
* it to the sink pad of the first element within the bin. This can be used
* for a number of purposes, for example to force output to a particular
* format or to modify or observe the data before it is output.
*
* It is also possible to 'suppress' audio and/or video output by using
* 'fakesink' elements (or capture it from there using the fakesink element's
* "handoff" signal, which, nota bene, is fired from the streaming thread!).
* </para>
* </refsect2>
* <refsect2>
* <title>Retrieving Tags and Other Meta Data</title>
* <para>
* Most of the common meta data (artist, title, etc.) can be retrieved by
* watching for TAG messages on the pipeline's bus (see above).
*
* Other more specific meta information like width/height/framerate of video
* streams or samplerate/number of channels of audio streams can be obtained
* from the negotiated caps on the sink pads of the sinks.
* </para>
* </refsect2>
* <refsect2>
* <title>Buffering</title>
* Playbin handles buffering automatically for the most part, but applications
* need to handle parts of the buffering process as well. Whenever playbin is
* buffering, it will post BUFFERING messages on the bus with a percentage
* value that shows the progress of the buffering process. Applications need
* to set playbin to PLAYING or PAUSED state in response to these messages.
* They may also want to convey the buffering progress to the user in some
* way. Here is how to extract the percentage information from the message:
* |[
* switch (GST_MESSAGE_TYPE (msg)) {
* case GST_MESSAGE_BUFFERING: {
* gint percent = 0;
* gst_message_parse_buffering (msg, &percent);
* g_print ("Buffering (%u percent done)", percent);
* break;
* }
* ...
* }
* ]|
* Note that applications should keep/set the pipeline in the PAUSED state when
* a BUFFERING message is received with a buffer percent value < 100 and set
* the pipeline back to PLAYING state when a BUFFERING message with a value
* of 100 percent is received (if PLAYING is the desired state, that is).
* </refsect2>
* <refsect2>
* <title>Embedding the video window in your application</title>
* By default, playbin (or rather the video sinks used) will create their own
* window. Applications will usually want to force output to a window of their
* own, however. This can be done using the #GstVideoOverlay interface, which most
* video sinks implement. See the documentation there for more details.
* </refsect2>
* <refsect2>
* <title>Specifying which CD/DVD device to use</title>
* The device to use for CDs/DVDs needs to be set on the source element
* playbin creates before it is opened. The most generic way of doing this
* is to connect to playbin's "source-setup" (or "notify::source") signal,
* which will be emitted by playbin when it has created the source element
* for a particular URI. In the signal callback you can check if the source
* element has a "device" property and set it appropriately. In some cases
* the device can also be set as part of the URI, but it depends on the
* elements involved if this will work or not. For example, for DVD menu
* playback, the following syntax might work (if the resindvd plugin is used):
* dvd://[/path/to/device]
* </refsect2>
* <refsect2>
* <title>Handling redirects</title>
* <para>
* Some elements may post 'redirect' messages on the bus to tell the
* application to open another location. These are element messages containing
* a structure named 'redirect' along with a 'new-location' field of string
* type. The new location may be a relative or an absolute URI. Examples
* for such redirects can be found in many quicktime movie trailers.
* </para>
* </refsect2>
* <refsect2>
* <title>Examples</title>
* |[
* gst-launch-1.0 -v playbin uri=file:///path/to/somefile.mp4
* ]| This will play back the given AVI video file, given that the video and
* audio decoders required to decode the content are installed. Since no
* special audio sink or video sink is supplied (via playbin's audio-sink or
* video-sink properties) playbin will try to find a suitable audio and
* video sink automatically using the autoaudiosink and autovideosink elements.
* |[
* gst-launch-1.0 -v playbin uri=cdda://4
* ]| This will play back track 4 on an audio CD in your disc drive (assuming
* the drive is detected automatically by the plugin).
* |[
* gst-launch-1.0 -v playbin uri=dvd://
* ]| This will play back the DVD in your disc drive (assuming
* the drive is detected automatically by the plugin).
* </refsect2>
*/
/* FIXME 0.11: suppress warnings for deprecated API such as GValueArray
* with newer GLib versions (>= 2.31.0) */
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/gst-i18n-plugin.h>
#include <gst/pbutils/pbutils.h>
#include <gst/audio/streamvolume.h>
#include <gst/video/video-info.h>
#include <gst/video/video-multiview.h>
#include <gst/video/videooverlay.h>
#include <gst/video/navigation.h>
#include <gst/video/colorbalance.h>
#include "gstplay-enum.h"
#include "gstplayback.h"
#include "gstplaysink.h"
#include "gstsubtitleoverlay.h"
#include "gstplaybackutils.h"
GST_DEBUG_CATEGORY_STATIC (gst_play_bin_debug);
#define GST_CAT_DEFAULT gst_play_bin_debug
#define GST_TYPE_PLAY_BIN (gst_play_bin_get_type())
#define GST_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BIN,GstPlayBin))
#define GST_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BIN,GstPlayBinClass))
#define GST_IS_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BIN))
#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
#define ULONG_TO_POINTER(number) ((gpointer) (guintptr) (number))
#define POINTER_TO_ULONG(number) ((guintptr) (number))
#define VOLUME_MAX_DOUBLE 10.0
typedef struct _GstPlayBin GstPlayBin;
typedef struct _GstPlayBinClass GstPlayBinClass;
typedef struct _GstSourceGroup GstSourceGroup;
typedef struct _GstSourceCombine GstSourceCombine;
typedef GstCaps *(*SourceCombineGetMediaCapsFunc) (void);
/* has the info for a combiner and provides the link to the sink */
struct _GstSourceCombine
{
const gchar *media_list[8]; /* the media types for the combiner */
SourceCombineGetMediaCapsFunc get_media_caps; /* more complex caps for the combiner */
GstPlaySinkType type; /* the sink pad type of the combiner */
GstElement *combiner; /* the combiner */
GPtrArray *channels;
GstPad *srcpad; /* the source pad of the combiner */
GstPad *sinkpad; /* the sinkpad of the sink when the combiner
* is linked
*/
gulong block_id;
gboolean has_active_pad; /* stream combiner has the "active-pad" property */
gboolean has_always_ok; /* stream combiner's sink pads have the "always-ok" property */
gboolean has_tags; /* stream combiner's sink pads have the "tags" property */
};
#define GST_SOURCE_GROUP_GET_LOCK(group) (&((GstSourceGroup*)(group))->lock)
#define GST_SOURCE_GROUP_LOCK(group) (g_mutex_lock (GST_SOURCE_GROUP_GET_LOCK(group)))
#define GST_SOURCE_GROUP_UNLOCK(group) (g_mutex_unlock (GST_SOURCE_GROUP_GET_LOCK(group)))
enum
{
PLAYBIN_STREAM_AUDIO = 0,
PLAYBIN_STREAM_VIDEO,
PLAYBIN_STREAM_TEXT,
PLAYBIN_STREAM_LAST
};
static void avelements_free (gpointer data);
static GSequence *avelements_create (GstPlayBin * playbin,
gboolean isaudioelement);
/* The GstAudioVideoElement structure holding the audio/video decoder
* and the audio/video sink factories together with field indicating
* the number of common caps features */
typedef struct
{
GstElementFactory *dec; /* audio:video decoder */
GstElementFactory *sink; /* audio:video sink */
guint n_comm_cf; /* number of common caps features */
} GstAVElement;
/* a structure to hold the objects for decoding a uri and the subtitle uri
*/
struct _GstSourceGroup
{
GstPlayBin *playbin;
GMutex lock;
gboolean valid; /* the group has valid info to start playback */
gboolean active; /* the group is active */
/* properties */
gchar *uri;
gchar *suburi;
GValueArray *streaminfo;
GstElement *source;
GPtrArray *video_channels; /* links to combiner pads */
GPtrArray *audio_channels; /* links to combiner pads */
GPtrArray *text_channels; /* links to combiner pads */
/* Sinks for this group. These are initialized with
* the configure or currently used sink, otherwise
* left as NULL and playbin tries to automatically
* select a good sink
*/
GstElement *audio_sink;
GstElement *video_sink;
GstElement *text_sink;
/* uridecodebins for uri and subtitle uri */
GstElement *uridecodebin;
GstElement *suburidecodebin;
gint pending;
gboolean sub_pending;
gboolean have_group_id;
guint group_id;
gulong pad_added_id;
gulong pad_removed_id;
gulong no_more_pads_id;
gulong notify_source_id;
gulong drained_id;
gulong autoplug_factories_id;
gulong autoplug_select_id;
gulong autoplug_continue_id;
gulong autoplug_query_id;
gulong sub_pad_added_id;
gulong sub_pad_removed_id;
gulong sub_no_more_pads_id;
gulong sub_autoplug_continue_id;
gulong sub_autoplug_query_id;
gulong block_id;
GMutex stream_changed_pending_lock;
gboolean stream_changed_pending;
/* to prevent that suburidecodebin seek flushes disrupt playback */
GMutex suburi_flushes_to_drop_lock;
GSList *suburi_flushes_to_drop;
/* buffering message stored for after switching */
GstMessage *pending_buffering_msg;
/* combiners for different streams */
GstSourceCombine combiner[PLAYBIN_STREAM_LAST];
};
#define GST_PLAY_BIN_GET_LOCK(bin) (&((GstPlayBin*)(bin))->lock)
#define GST_PLAY_BIN_LOCK(bin) (g_rec_mutex_lock (GST_PLAY_BIN_GET_LOCK(bin)))
#define GST_PLAY_BIN_UNLOCK(bin) (g_rec_mutex_unlock (GST_PLAY_BIN_GET_LOCK(bin)))
/* lock to protect dynamic callbacks, like no-more-pads */
#define GST_PLAY_BIN_DYN_LOCK(bin) g_mutex_lock (&(bin)->dyn_lock)
#define GST_PLAY_BIN_DYN_UNLOCK(bin) g_mutex_unlock (&(bin)->dyn_lock)
/* lock for shutdown */
#define GST_PLAY_BIN_SHUTDOWN_LOCK(bin,label) \
G_STMT_START { \
if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) \
goto label; \
GST_PLAY_BIN_DYN_LOCK (bin); \
if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) { \
GST_PLAY_BIN_DYN_UNLOCK (bin); \
goto label; \
} \
} G_STMT_END
/* unlock for shutdown */
#define GST_PLAY_BIN_SHUTDOWN_UNLOCK(bin) \
GST_PLAY_BIN_DYN_UNLOCK (bin); \
/**
* GstPlayBin:
*
* playbin element structure
*/
struct _GstPlayBin
{
GstPipeline parent;
GRecMutex lock; /* to protect group switching */
/* the groups, we use a double buffer to switch between current and next */
GstSourceGroup groups[2]; /* array with group info */
GstSourceGroup *curr_group; /* pointer to the currently playing group */
GstSourceGroup *next_group; /* pointer to the next group */
/* properties */
guint64 connection_speed; /* connection speed in bits/sec (0 = unknown) */
gint current_video; /* the currently selected stream */
gint current_audio; /* the currently selected stream */
gint current_text; /* the currently selected stream */
guint64 buffer_duration; /* When buffering, the max buffer duration (ns) */
guint buffer_size; /* When buffering, the max buffer size (bytes) */
gboolean force_aspect_ratio;
/* Multiview/stereoscopic overrides */
GstVideoMultiviewFramePacking multiview_mode;
GstVideoMultiviewFlags multiview_flags;
/* our play sink */
GstPlaySink *playsink;
/* the last activated source */
GstElement *source;
/* lock protecting dynamic adding/removing */
GMutex dyn_lock;
/* if we are shutting down or not */
gint shutdown;
gboolean async_pending; /* async-start has been emitted */
GMutex elements_lock;
guint32 elements_cookie;
GList *elements; /* factories we can use for selecting elements */
gboolean have_selector; /* set to FALSE when we fail to create an
* input-selector, so that we only post a
* warning once */
gboolean video_pending_flush_finish; /* whether we are pending to send a custom
* custom-video-flush-finish event
* on pad activation */
gboolean audio_pending_flush_finish; /* whether we are pending to send a custom
* custom-audio-flush-finish event
* on pad activation */
gboolean text_pending_flush_finish; /* whether we are pending to send a custom
* custom-subtitle-flush-finish event
* on pad activation */
GstElement *audio_sink; /* configured audio sink, or NULL */
GstElement *video_sink; /* configured video sink, or NULL */
GstElement *text_sink; /* configured text sink, or NULL */
GstElement *audio_stream_combiner; /* configured audio stream combiner, or NULL */
GstElement *video_stream_combiner; /* configured video stream combiner, or NULL */
GstElement *text_stream_combiner; /* configured text stream combiner, or NULL */
GSequence *aelements; /* a list of GstAVElements for audio stream */
GSequence *velements; /* a list of GstAVElements for video stream */
struct
{
gboolean valid;
GstFormat format;
gint64 duration;
} duration[5]; /* cached durations */
guint64 ring_buffer_max_size; /* 0 means disabled */
GList *contexts;
};
struct _GstPlayBinClass
{
GstPipelineClass parent_class;
/* notify app that the current uri finished decoding and it is possible to
* queue a new one for gapless playback */
void (*about_to_finish) (GstPlayBin * playbin);
/* notify app that number of audio/video/text streams changed */
void (*video_changed) (GstPlayBin * playbin);
void (*audio_changed) (GstPlayBin * playbin);
void (*text_changed) (GstPlayBin * playbin);
/* notify app that the tags of audio/video/text streams changed */
void (*video_tags_changed) (GstPlayBin * playbin, gint stream);
void (*audio_tags_changed) (GstPlayBin * playbin, gint stream);
void (*text_tags_changed) (GstPlayBin * playbin, gint stream);
/* get audio/video/text tags for a stream */
GstTagList *(*get_video_tags) (GstPlayBin * playbin, gint stream);
GstTagList *(*get_audio_tags) (GstPlayBin * playbin, gint stream);
GstTagList *(*get_text_tags) (GstPlayBin * playbin, gint stream);
/* get the last video sample and convert it to the given caps */
GstSample *(*convert_sample) (GstPlayBin * playbin, GstCaps * caps);
/* get audio/video/text pad for a stream */
GstPad *(*get_video_pad) (GstPlayBin * playbin, gint stream);
GstPad *(*get_audio_pad) (GstPlayBin * playbin, gint stream);
GstPad *(*get_text_pad) (GstPlayBin * playbin, gint stream);
};
/* props */
#define DEFAULT_URI NULL
#define DEFAULT_SUBURI NULL
#define DEFAULT_SOURCE NULL
#define DEFAULT_FLAGS GST_PLAY_FLAG_AUDIO | GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_TEXT | \
GST_PLAY_FLAG_SOFT_VOLUME | GST_PLAY_FLAG_DEINTERLACE | \
GST_PLAY_FLAG_SOFT_COLORBALANCE
#define DEFAULT_N_VIDEO 0
#define DEFAULT_CURRENT_VIDEO -1
#define DEFAULT_N_AUDIO 0
#define DEFAULT_CURRENT_AUDIO -1
#define DEFAULT_N_TEXT 0
#define DEFAULT_CURRENT_TEXT -1
#define DEFAULT_SUBTITLE_ENCODING NULL
#define DEFAULT_AUDIO_SINK NULL
#define DEFAULT_VIDEO_SINK NULL
#define DEFAULT_VIS_PLUGIN NULL
#define DEFAULT_TEXT_SINK NULL
#define DEFAULT_VOLUME 1.0
#define DEFAULT_MUTE FALSE
#define DEFAULT_FRAME NULL
#define DEFAULT_FONT_DESC NULL
#define DEFAULT_CONNECTION_SPEED 0
#define DEFAULT_BUFFER_DURATION -1
#define DEFAULT_BUFFER_SIZE -1
#define DEFAULT_RING_BUFFER_MAX_SIZE 0
enum
{
PROP_0,
PROP_URI,
PROP_CURRENT_URI,
PROP_SUBURI,
PROP_CURRENT_SUBURI,
PROP_SOURCE,
PROP_FLAGS,
PROP_N_VIDEO,
PROP_CURRENT_VIDEO,
PROP_N_AUDIO,
PROP_CURRENT_AUDIO,
PROP_N_TEXT,
PROP_CURRENT_TEXT,
PROP_SUBTITLE_ENCODING,
PROP_AUDIO_SINK,
PROP_VIDEO_SINK,
PROP_VIS_PLUGIN,
PROP_TEXT_SINK,
PROP_VIDEO_STREAM_COMBINER,
PROP_AUDIO_STREAM_COMBINER,
PROP_TEXT_STREAM_COMBINER,
PROP_VOLUME,
PROP_MUTE,
PROP_SAMPLE,
PROP_FONT_DESC,
PROP_CONNECTION_SPEED,
PROP_BUFFER_SIZE,
PROP_BUFFER_DURATION,
PROP_AV_OFFSET,
PROP_RING_BUFFER_MAX_SIZE,
PROP_FORCE_ASPECT_RATIO,
PROP_AUDIO_FILTER,
PROP_VIDEO_FILTER,
PROP_MULTIVIEW_MODE,
PROP_MULTIVIEW_FLAGS
};
/* signals */
enum
{
SIGNAL_ABOUT_TO_FINISH,
SIGNAL_CONVERT_SAMPLE,
SIGNAL_VIDEO_CHANGED,
SIGNAL_AUDIO_CHANGED,
SIGNAL_TEXT_CHANGED,
SIGNAL_VIDEO_TAGS_CHANGED,
SIGNAL_AUDIO_TAGS_CHANGED,
SIGNAL_TEXT_TAGS_CHANGED,
SIGNAL_GET_VIDEO_TAGS,
SIGNAL_GET_AUDIO_TAGS,
SIGNAL_GET_TEXT_TAGS,
SIGNAL_GET_VIDEO_PAD,
SIGNAL_GET_AUDIO_PAD,
SIGNAL_GET_TEXT_PAD,
SIGNAL_SOURCE_SETUP,
LAST_SIGNAL
};
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw(ANY)");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw(ANY)");
static void gst_play_bin_class_init (GstPlayBinClass * klass);
static void gst_play_bin_init (GstPlayBin * playbin);
static void gst_play_bin_finalize (GObject * object);
static void gst_play_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_play_bin_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec);
static GstStateChangeReturn gst_play_bin_change_state (GstElement * element,
GstStateChange transition);
static void gst_play_bin_handle_message (GstBin * bin, GstMessage * message);
static gboolean gst_play_bin_query (GstElement * element, GstQuery * query);
static void gst_play_bin_set_context (GstElement * element,
GstContext * context);
static gboolean gst_play_bin_send_event (GstElement * element,
GstEvent * event);
static GstTagList *gst_play_bin_get_video_tags (GstPlayBin * playbin,
gint stream);
static GstTagList *gst_play_bin_get_audio_tags (GstPlayBin * playbin,
gint stream);
static GstTagList *gst_play_bin_get_text_tags (GstPlayBin * playbin,
gint stream);
static GstSample *gst_play_bin_convert_sample (GstPlayBin * playbin,
GstCaps * caps);
static GstPad *gst_play_bin_get_video_pad (GstPlayBin * playbin, gint stream);
static GstPad *gst_play_bin_get_audio_pad (GstPlayBin * playbin, gint stream);
static GstPad *gst_play_bin_get_text_pad (GstPlayBin * playbin, gint stream);
static GstStateChangeReturn setup_next_source (GstPlayBin * playbin,
GstState target);
static void no_more_pads_cb (GstElement * decodebin, GstSourceGroup * group);
static void pad_removed_cb (GstElement * decodebin, GstPad * pad,
GstSourceGroup * group);
static void gst_play_bin_suburidecodebin_block (GstSourceGroup * group,
GstElement * suburidecodebin, gboolean block);
static void gst_play_bin_suburidecodebin_seek_to_start (GstSourceGroup * group);
static GstElementClass *parent_class;
static guint gst_play_bin_signals[LAST_SIGNAL] = { 0 };
#define REMOVE_SIGNAL(obj,id) \
if (id) { \
g_signal_handler_disconnect (obj, id); \
id = 0; \
}
static void gst_play_bin_overlay_init (gpointer g_iface, gpointer g_iface_data);
static void gst_play_bin_navigation_init (gpointer g_iface,
gpointer g_iface_data);
static void gst_play_bin_colorbalance_init (gpointer g_iface,
gpointer g_iface_data);
static GType
gst_play_bin_get_type (void)
{
static GType gst_play_bin_type = 0;
if (!gst_play_bin_type) {
static const GTypeInfo gst_play_bin_info = {
sizeof (GstPlayBinClass),
NULL,
NULL,
(GClassInitFunc) gst_play_bin_class_init,
NULL,
NULL,
sizeof (GstPlayBin),
0,
(GInstanceInitFunc) gst_play_bin_init,
NULL
};
static const GInterfaceInfo svol_info = {
NULL, NULL, NULL
};
static const GInterfaceInfo ov_info = {
gst_play_bin_overlay_init,
NULL, NULL
};
static const GInterfaceInfo nav_info = {
gst_play_bin_navigation_init,
NULL, NULL
};
static const GInterfaceInfo col_info = {
gst_play_bin_colorbalance_init,
NULL, NULL
};
gst_play_bin_type = g_type_register_static (GST_TYPE_PIPELINE,
"GstPlayBin", &gst_play_bin_info, 0);
g_type_add_interface_static (gst_play_bin_type, GST_TYPE_STREAM_VOLUME,
&svol_info);
g_type_add_interface_static (gst_play_bin_type, GST_TYPE_VIDEO_OVERLAY,
&ov_info);
g_type_add_interface_static (gst_play_bin_type, GST_TYPE_NAVIGATION,
&nav_info);
g_type_add_interface_static (gst_play_bin_type, GST_TYPE_COLOR_BALANCE,
&col_info);
}
return gst_play_bin_type;
}
static void
gst_play_bin_class_init (GstPlayBinClass * klass)
{
GObjectClass *gobject_klass;
GstElementClass *gstelement_klass;
GstBinClass *gstbin_klass;
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
gstbin_klass = (GstBinClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_klass->set_property = gst_play_bin_set_property;
gobject_klass->get_property = gst_play_bin_get_property;
gobject_klass->finalize = gst_play_bin_finalize;
/**
* GstPlayBin:uri
*
* Set the next URI that playbin will play. This property can be set from the
* about-to-finish signal to queue the next media file.
*/
g_object_class_install_property (gobject_klass, PROP_URI,
g_param_spec_string ("uri", "URI", "URI of the media to play",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:current-uri
*
* The currently playing uri.
*/
g_object_class_install_property (gobject_klass, PROP_CURRENT_URI,
g_param_spec_string ("current-uri", "Current URI",
"The currently playing URI", NULL,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:suburi
*
* Set the next subtitle URI that playbin will play. This property can be
* set from the about-to-finish signal to queue the next subtitle media file.
*/
g_object_class_install_property (gobject_klass, PROP_SUBURI,
g_param_spec_string ("suburi", ".sub-URI", "Optional URI of a subtitle",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:current-suburi
*
* The currently playing subtitle uri.
*/
g_object_class_install_property (gobject_klass, PROP_CURRENT_SUBURI,
g_param_spec_string ("current-suburi", "Current .sub-URI",
"The currently playing URI of a subtitle",
NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_SOURCE,
g_param_spec_object ("source", "Source", "Source element",
GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:flags
*
* Control the behaviour of playbin.
*/
g_object_class_install_property (gobject_klass, PROP_FLAGS,
g_param_spec_flags ("flags", "Flags", "Flags to control behaviour",
GST_TYPE_PLAY_FLAGS, DEFAULT_FLAGS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:n-video
*
* Get the total number of available video streams.
*/
g_object_class_install_property (gobject_klass, PROP_N_VIDEO,
g_param_spec_int ("n-video", "Number Video",
"Total number of video streams", 0, G_MAXINT, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:current-video
*
* Get or set the currently playing video stream. By default the first video
* stream with data is played.
*/
g_object_class_install_property (gobject_klass, PROP_CURRENT_VIDEO,
g_param_spec_int ("current-video", "Current Video",
"Currently playing video stream (-1 = auto)",
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:n-audio
*
* Get the total number of available audio streams.
*/
g_object_class_install_property (gobject_klass, PROP_N_AUDIO,
g_param_spec_int ("n-audio", "Number Audio",
"Total number of audio streams", 0, G_MAXINT, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:current-audio
*
* Get or set the currently playing audio stream. By default the first audio
* stream with data is played.
*/
g_object_class_install_property (gobject_klass, PROP_CURRENT_AUDIO,
g_param_spec_int ("current-audio", "Current audio",
"Currently playing audio stream (-1 = auto)",
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:n-text
*
* Get the total number of available subtitle streams.
*/
g_object_class_install_property (gobject_klass, PROP_N_TEXT,
g_param_spec_int ("n-text", "Number Text",
"Total number of text streams", 0, G_MAXINT, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:current-text:
*
* Get or set the currently playing subtitle stream. By default the first
* subtitle stream with data is played.
*/
g_object_class_install_property (gobject_klass, PROP_CURRENT_TEXT,
g_param_spec_int ("current-text", "Current Text",
"Currently playing text stream (-1 = auto)",
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_SUBTITLE_ENCODING,
g_param_spec_string ("subtitle-encoding", "subtitle encoding",
"Encoding to assume if input subtitles are not in UTF-8 encoding. "
"If not set, the GST_SUBTITLE_ENCODING environment variable will "
"be checked for an encoding to use. If that is not set either, "
"ISO-8859-15 will be assumed.", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VIDEO_FILTER,
g_param_spec_object ("video-filter", "Video filter",
"the video filter(s) to apply, if possible",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_AUDIO_FILTER,
g_param_spec_object ("audio-filter", "Audio filter",
"the audio filter(s) to apply, if possible",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VIDEO_SINK,
g_param_spec_object ("video-sink", "Video Sink",
"the video output element to use (NULL = default sink)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_AUDIO_SINK,
g_param_spec_object ("audio-sink", "Audio Sink",
"the audio output element to use (NULL = default sink)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VIS_PLUGIN,
g_param_spec_object ("vis-plugin", "Vis plugin",
"the visualization element to use (NULL = default)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_TEXT_SINK,
g_param_spec_object ("text-sink", "Text plugin",
"the text output element to use (NULL = default subtitleoverlay)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:video-stream-combiner
*
* Get or set the current video stream combiner. By default, an input-selector
* is created and deleted as-needed.
*/
g_object_class_install_property (gobject_klass, PROP_VIDEO_STREAM_COMBINER,
g_param_spec_object ("video-stream-combiner", "Video stream combiner",
"Current video stream combiner (NULL = input-selector)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:audio-stream-combiner
*
* Get or set the current audio stream combiner. By default, an input-selector
* is created and deleted as-needed.
*/
g_object_class_install_property (gobject_klass, PROP_AUDIO_STREAM_COMBINER,
g_param_spec_object ("audio-stream-combiner", "Audio stream combiner",
"Current audio stream combiner (NULL = input-selector)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:text-stream-combiner
*
* Get or set the current text stream combiner. By default, an input-selector
* is created and deleted as-needed.
*/
g_object_class_install_property (gobject_klass, PROP_TEXT_STREAM_COMBINER,
g_param_spec_object ("text-stream-combiner", "Text stream combiner",
"Current text stream combiner (NULL = input-selector)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:volume:
*
* Get or set the current audio stream volume. 1.0 means 100%,
* 0.0 means mute. This uses a linear volume scale.
*
*/
g_object_class_install_property (gobject_klass, PROP_VOLUME,
g_param_spec_double ("volume", "Volume", "The audio volume, 1.0=100%",
0.0, VOLUME_MAX_DOUBLE, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_MUTE,
g_param_spec_boolean ("mute", "Mute",
"Mute the audio channel without changing the volume", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:sample:
* @playbin: a #GstPlayBin
*
* Get the currently rendered or prerolled sample in the video sink.
* The #GstCaps in the sample will describe the format of the buffer.
*/
g_object_class_install_property (gobject_klass, PROP_SAMPLE,
g_param_spec_boxed ("sample", "Sample",
"The last sample (NULL = no video available)",
GST_TYPE_SAMPLE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_FONT_DESC,
g_param_spec_string ("subtitle-font-desc",
"Subtitle font description",
"Pango font description of font "
"to be used for subtitle rendering", NULL,
G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_CONNECTION_SPEED,
g_param_spec_uint64 ("connection-speed", "Connection Speed",
"Network connection speed in kbps (0 = unknown)",
0, G_MAXUINT64 / 1000, DEFAULT_CONNECTION_SPEED,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_BUFFER_SIZE,
g_param_spec_int ("buffer-size", "Buffer size (bytes)",
"Buffer size when buffering network streams",
-1, G_MAXINT, DEFAULT_BUFFER_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_BUFFER_DURATION,
g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
"Buffer duration when buffering network streams",
-1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:av-offset:
*
* Control the synchronisation offset between the audio and video streams.
* Positive values make the audio ahead of the video and negative values make
* the audio go behind the video.
*/
g_object_class_install_property (gobject_klass, PROP_AV_OFFSET,
g_param_spec_int64 ("av-offset", "AV Offset",
"The synchronisation offset between audio and video in nanoseconds",
G_MININT64, G_MAXINT64, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin:ring-buffer-max-size
*
* The maximum size of the ring buffer in bytes. If set to 0, the ring
* buffer is disabled. Default 0.
*/
g_object_class_install_property (gobject_klass, PROP_RING_BUFFER_MAX_SIZE,
g_param_spec_uint64 ("ring-buffer-max-size",
"Max. ring buffer size (bytes)",
"Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)",
0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin::force-aspect-ratio:
*
* Requests the video sink to enforce the video display aspect ratio.
*/
g_object_class_install_property (gobject_klass, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio", "Force Aspect Ratio",
"When enabled, scaling will respect original aspect ratio", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin::video-multiview-mode:
*
* Set the stereoscopic mode for video streams that don't contain
* any information in the stream, so they can be correctly played
* as 3D streams. If a video already has multiview information
* encoded, this property can override other modes in the set,
* but cannot be used to re-interpret MVC or mixed-mono streams.
*
* See Also: The #GstPlayBin::video-multiview-flags property
*
*/
g_object_class_install_property (gobject_klass, PROP_MULTIVIEW_MODE,
g_param_spec_enum ("video-multiview-mode",
"Multiview Mode Override",
"Re-interpret a video stream as one of several frame-packed stereoscopic modes.",
GST_TYPE_VIDEO_MULTIVIEW_FRAME_PACKING,
GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin::video-multiview-flags:
*
* When overriding the multiview mode of an input stream,
* these flags modify details of the view layout.
*
* See Also: The #GstPlayBin::video-multiview-mode property
*/
g_object_class_install_property (gobject_klass, PROP_MULTIVIEW_FLAGS,
g_param_spec_flags ("video-multiview-flags",
"Multiview Flags Override",
"Override details of the multiview frame layout",
GST_TYPE_VIDEO_MULTIVIEW_FLAGS, GST_VIDEO_MULTIVIEW_FLAGS_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin::about-to-finish
* @playbin: a #GstPlayBin
*
* This signal is emitted when the current uri is about to finish. You can
* set the uri and suburi to make sure that playback continues.
*
* This signal is emitted from the context of a GStreamer streaming thread.
*/
gst_play_bin_signals[SIGNAL_ABOUT_TO_FINISH] =
g_signal_new ("about-to-finish", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, about_to_finish), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE);
/**
* GstPlayBin::video-changed
* @playbin: a #GstPlayBin
*
* This signal is emitted whenever the number or order of the video
* streams has changed. The application will most likely want to select
* a new video stream.
*
* This signal is usually emitted from the context of a GStreamer streaming
* thread. You can use gst_message_new_application() and
* gst_element_post_message() to notify your application's main thread.
*/
/* FIXME 0.11: turn video-changed signal into message? */
gst_play_bin_signals[SIGNAL_VIDEO_CHANGED] =
g_signal_new ("video-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, video_changed), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE);
/**
* GstPlayBin::audio-changed
* @playbin: a #GstPlayBin
*
* This signal is emitted whenever the number or order of the audio
* streams has changed. The application will most likely want to select
* a new audio stream.
*
* This signal may be emitted from the context of a GStreamer streaming thread.
* You can use gst_message_new_application() and gst_element_post_message()
* to notify your application's main thread.
*/
/* FIXME 0.11: turn audio-changed signal into message? */
gst_play_bin_signals[SIGNAL_AUDIO_CHANGED] =
g_signal_new ("audio-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, audio_changed), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE);
/**
* GstPlayBin::text-changed
* @playbin: a #GstPlayBin
*
* This signal is emitted whenever the number or order of the text
* streams has changed. The application will most likely want to select
* a new text stream.
*
* This signal may be emitted from the context of a GStreamer streaming thread.
* You can use gst_message_new_application() and gst_element_post_message()
* to notify your application's main thread.
*/
/* FIXME 0.11: turn text-changed signal into message? */
gst_play_bin_signals[SIGNAL_TEXT_CHANGED] =
g_signal_new ("text-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, text_changed), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE);
/**
* GstPlayBin::video-tags-changed
* @playbin: a #GstPlayBin
* @stream: stream index with changed tags
*
* This signal is emitted whenever the tags of a video stream have changed.
* The application will most likely want to get the new tags.
*
* This signal may be emitted from the context of a GStreamer streaming thread.
* You can use gst_message_new_application() and gst_element_post_message()
* to notify your application's main thread.
*/
gst_play_bin_signals[SIGNAL_VIDEO_TAGS_CHANGED] =
g_signal_new ("video-tags-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, video_tags_changed), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_INT);
/**
* GstPlayBin::audio-tags-changed
* @playbin: a #GstPlayBin
* @stream: stream index with changed tags
*
* This signal is emitted whenever the tags of an audio stream have changed.
* The application will most likely want to get the new tags.
*
* This signal may be emitted from the context of a GStreamer streaming thread.
* You can use gst_message_new_application() and gst_element_post_message()
* to notify your application's main thread.
*/
gst_play_bin_signals[SIGNAL_AUDIO_TAGS_CHANGED] =
g_signal_new ("audio-tags-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, audio_tags_changed), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_INT);
/**
* GstPlayBin::text-tags-changed
* @playbin: a #GstPlayBin
* @stream: stream index with changed tags
*
* This signal is emitted whenever the tags of a text stream have changed.
* The application will most likely want to get the new tags.
*
* This signal may be emitted from the context of a GStreamer streaming thread.
* You can use gst_message_new_application() and gst_element_post_message()
* to notify your application's main thread.
*/
gst_play_bin_signals[SIGNAL_TEXT_TAGS_CHANGED] =
g_signal_new ("text-tags-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBinClass, text_tags_changed), NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_INT);
/**
* GstPlayBin::source-setup:
* @playbin: a #GstPlayBin
* @source: source element
*
* This signal is emitted after the source element has been created, so
* it can be configured by setting additional properties (e.g. set a
* proxy server for an http source, or set the device and read speed for
* an audio cd source). This is functionally equivalent to connecting to
* the notify::source signal, but more convenient.
*
* This signal is usually emitted from the context of a GStreamer streaming
* thread.
*/
gst_play_bin_signals[SIGNAL_SOURCE_SETUP] =
g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
/**
* GstPlayBin::get-video-tags
* @playbin: a #GstPlayBin
* @stream: a video stream number
*
* Action signal to retrieve the tags of a specific video stream number.
* This information can be used to select a stream.
*
* Returns: a GstTagList with tags or NULL when the stream number does not
* exist.
*/
gst_play_bin_signals[SIGNAL_GET_VIDEO_TAGS] =
g_signal_new ("get-video-tags", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, get_video_tags), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
/**
* GstPlayBin::get-audio-tags
* @playbin: a #GstPlayBin
* @stream: an audio stream number
*
* Action signal to retrieve the tags of a specific audio stream number.
* This information can be used to select a stream.
*
* Returns: a GstTagList with tags or NULL when the stream number does not
* exist.
*/
gst_play_bin_signals[SIGNAL_GET_AUDIO_TAGS] =
g_signal_new ("get-audio-tags", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, get_audio_tags), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
/**
* GstPlayBin::get-text-tags
* @playbin: a #GstPlayBin
* @stream: a text stream number
*
* Action signal to retrieve the tags of a specific text stream number.
* This information can be used to select a stream.
*
* Returns: a GstTagList with tags or NULL when the stream number does not
* exist.
*/
gst_play_bin_signals[SIGNAL_GET_TEXT_TAGS] =
g_signal_new ("get-text-tags", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, get_text_tags), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
/**
* GstPlayBin::convert-sample
* @playbin: a #GstPlayBin
* @caps: the target format of the frame
*
* Action signal to retrieve the currently playing video frame in the format
* specified by @caps.
* If @caps is %NULL, no conversion will be performed and this function is
* equivalent to the #GstPlayBin::frame property.
*
* Returns: a #GstSample of the current video frame converted to #caps.
* The caps on the sample will describe the final layout of the buffer data.
* %NULL is returned when no current buffer can be retrieved or when the
* conversion failed.
*/
gst_play_bin_signals[SIGNAL_CONVERT_SAMPLE] =
g_signal_new ("convert-sample", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, convert_sample), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_SAMPLE, 1, GST_TYPE_CAPS);
/**
* GstPlayBin::get-video-pad
* @playbin: a #GstPlayBin
* @stream: a video stream number
*
* Action signal to retrieve the stream-combiner sinkpad for a specific
* video stream.
* This pad can be used for notifications of caps changes, stream-specific
* queries, etc.
*
* Returns: a #GstPad, or NULL when the stream number does not exist.
*/
gst_play_bin_signals[SIGNAL_GET_VIDEO_PAD] =
g_signal_new ("get-video-pad", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, get_video_pad), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_PAD, 1, G_TYPE_INT);
/**
* GstPlayBin::get-audio-pad
* @playbin: a #GstPlayBin
* @stream: an audio stream number
*
* Action signal to retrieve the stream-combiner sinkpad for a specific
* audio stream.
* This pad can be used for notifications of caps changes, stream-specific
* queries, etc.
*
* Returns: a #GstPad, or NULL when the stream number does not exist.
*/
gst_play_bin_signals[SIGNAL_GET_AUDIO_PAD] =
g_signal_new ("get-audio-pad", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, get_audio_pad), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_PAD, 1, G_TYPE_INT);
/**
* GstPlayBin::get-text-pad
* @playbin: a #GstPlayBin
* @stream: a text stream number
*
* Action signal to retrieve the stream-combiner sinkpad for a specific
* text stream.
* This pad can be used for notifications of caps changes, stream-specific
* queries, etc.
*
* Returns: a #GstPad, or NULL when the stream number does not exist.
*/
gst_play_bin_signals[SIGNAL_GET_TEXT_PAD] =
g_signal_new ("get-text-pad", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBinClass, get_text_pad), NULL, NULL,
g_cclosure_marshal_generic, GST_TYPE_PAD, 1, G_TYPE_INT);
klass->get_video_tags = gst_play_bin_get_video_tags;
klass->get_audio_tags = gst_play_bin_get_audio_tags;
klass->get_text_tags = gst_play_bin_get_text_tags;
klass->convert_sample = gst_play_bin_convert_sample;
klass->get_video_pad = gst_play_bin_get_video_pad;
klass->get_audio_pad = gst_play_bin_get_audio_pad;
klass->get_text_pad = gst_play_bin_get_text_pad;
gst_element_class_set_static_metadata (gstelement_klass,
"Player Bin 2", "Generic/Bin/Player",
"Autoplug and play media from an uri",
"Wim Taymans <wim.taymans@gmail.com>");
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_play_bin_change_state);
gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_play_bin_query);
gstelement_klass->set_context = GST_DEBUG_FUNCPTR (gst_play_bin_set_context);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_bin_send_event);
gstbin_klass->handle_message =
GST_DEBUG_FUNCPTR (gst_play_bin_handle_message);
}
static void
do_async_start (GstPlayBin * playbin)
{
GstMessage *message;
playbin->async_pending = TRUE;
message = gst_message_new_async_start (GST_OBJECT_CAST (playbin));
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (playbin),
message);
}
static void
do_async_done (GstPlayBin * playbin)
{
GstMessage *message;
if (playbin->async_pending) {
GST_DEBUG_OBJECT (playbin, "posting ASYNC_DONE");
message =
gst_message_new_async_done (GST_OBJECT_CAST (playbin),
GST_CLOCK_TIME_NONE);
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (playbin),
message);
playbin->async_pending = FALSE;
}
}
static void
init_group (GstPlayBin * playbin, GstSourceGroup * group)
{
/* store the array for the different channels */
group->video_channels = g_ptr_array_new ();
group->audio_channels = g_ptr_array_new ();
group->text_channels = g_ptr_array_new ();
g_mutex_init (&group->lock);
group->stream_changed_pending = FALSE;
g_mutex_init (&group->stream_changed_pending_lock);
/* init combiners. The combiner is found by finding the first prefix that
* matches the media. */
group->playbin = playbin;
/* If you add any items to these lists, check that media_list[] is defined
* above to be large enough to hold MAX(items)+1, so as to accommodate a
* NULL terminator (set when the memory is zeroed on allocation) */
group->combiner[PLAYBIN_STREAM_AUDIO].media_list[0] = "audio/";
group->combiner[PLAYBIN_STREAM_AUDIO].type = GST_PLAY_SINK_TYPE_AUDIO;
group->combiner[PLAYBIN_STREAM_AUDIO].channels = group->audio_channels;
group->combiner[PLAYBIN_STREAM_VIDEO].media_list[0] = "video/";
group->combiner[PLAYBIN_STREAM_VIDEO].media_list[1] = "image/";
group->combiner[PLAYBIN_STREAM_VIDEO].type = GST_PLAY_SINK_TYPE_VIDEO;
group->combiner[PLAYBIN_STREAM_VIDEO].channels = group->video_channels;
group->combiner[PLAYBIN_STREAM_TEXT].media_list[0] = "text/";
group->combiner[PLAYBIN_STREAM_TEXT].media_list[1] = "application/x-subtitle";
group->combiner[PLAYBIN_STREAM_TEXT].media_list[2] = "application/x-ssa";
group->combiner[PLAYBIN_STREAM_TEXT].media_list[3] = "application/x-ass";
group->combiner[PLAYBIN_STREAM_TEXT].media_list[4] = "subpicture/x-dvd";
group->combiner[PLAYBIN_STREAM_TEXT].media_list[5] = "subpicture/";
group->combiner[PLAYBIN_STREAM_TEXT].media_list[6] = "subtitle/";
group->combiner[PLAYBIN_STREAM_TEXT].get_media_caps =
gst_subtitle_overlay_create_factory_caps;
group->combiner[PLAYBIN_STREAM_TEXT].type = GST_PLAY_SINK_TYPE_TEXT;
group->combiner[PLAYBIN_STREAM_TEXT].channels = group->text_channels;
}
static void
free_group (GstPlayBin * playbin, GstSourceGroup * group)
{
g_free (group->uri);
g_free (group->suburi);
g_ptr_array_free (group->video_channels, TRUE);
g_ptr_array_free (group->audio_channels, TRUE);
g_ptr_array_free (group->text_channels, TRUE);
g_mutex_clear (&group->lock);
if (group->audio_sink)
gst_object_unref (group->audio_sink);
group->audio_sink = NULL;
if (group->video_sink)
gst_object_unref (group->video_sink);
group->video_sink = NULL;
if (group->text_sink)
gst_object_unref (group->text_sink);
group->text_sink = NULL;
group->stream_changed_pending = FALSE;
g_mutex_clear (&group->stream_changed_pending_lock);
g_slist_free (group->suburi_flushes_to_drop);
group->suburi_flushes_to_drop = NULL;
if (group->suburi_flushes_to_drop_lock.p)
g_mutex_clear (&group->suburi_flushes_to_drop_lock);
group->suburi_flushes_to_drop_lock.p = NULL;
if (group->pending_buffering_msg)
gst_message_unref (group->pending_buffering_msg);
group->pending_buffering_msg = NULL;
}
static void
notify_volume_cb (GObject * combiner, GParamSpec * pspec, GstPlayBin * playbin)
{
g_object_notify (G_OBJECT (playbin), "volume");
}
static void
notify_mute_cb (GObject * combiner, GParamSpec * pspec, GstPlayBin * playbin)
{
g_object_notify (G_OBJECT (playbin), "mute");
}
static void
colorbalance_value_changed_cb (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value, GstPlayBin * playbin)
{
gst_color_balance_value_changed (GST_COLOR_BALANCE (playbin), channel, value);
}
static gint
compare_factories_func (gconstpointer p1, gconstpointer p2)
{
GstPluginFeature *f1, *f2;
gboolean is_sink1, is_sink2;
gboolean is_parser1, is_parser2;
f1 = (GstPluginFeature *) p1;
f2 = (GstPluginFeature *) p2;
is_sink1 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f1),
GST_ELEMENT_FACTORY_TYPE_SINK);
is_sink2 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f2),
GST_ELEMENT_FACTORY_TYPE_SINK);
is_parser1 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f1),
GST_ELEMENT_FACTORY_TYPE_PARSER);
is_parser2 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f2),
GST_ELEMENT_FACTORY_TYPE_PARSER);
/* First we want all sinks as we prefer a sink if it directly
* supports the current caps */
if (is_sink1 && !is_sink2)
return -1;
else if (!is_sink1 && is_sink2)
return 1;
/* Then we want all parsers as we always want to plug parsers
* before decoders */
if (is_parser1 && !is_parser2)
return -1;
else if (!is_parser1 && is_parser2)
return 1;
/* And if it's a both a parser or sink we first sort by rank
* and then by factory name */
return gst_plugin_feature_rank_compare_func (p1, p2);
}
/* Must be called with elements lock! */
static void
gst_play_bin_update_elements_list (GstPlayBin * playbin)
{
GList *res, *tmp;
guint cookie;
cookie = gst_registry_get_feature_list_cookie (gst_registry_get ());
if (!playbin->elements || playbin->elements_cookie != cookie) {
if (playbin->elements)
gst_plugin_feature_list_free (playbin->elements);
res =
gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL);
tmp =
gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS, GST_RANK_MARGINAL);
playbin->elements = g_list_concat (res, tmp);
playbin->elements = g_list_sort (playbin->elements, compare_factories_func);
}
if (!playbin->aelements || playbin->elements_cookie != cookie) {
if (playbin->aelements)
g_sequence_free (playbin->aelements);
playbin->aelements = avelements_create (playbin, TRUE);
}
if (!playbin->velements || playbin->elements_cookie != cookie) {
if (playbin->velements)
g_sequence_free (playbin->velements);
playbin->velements = avelements_create (playbin, FALSE);
}
playbin->elements_cookie = cookie;
}
static void
gst_play_bin_init (GstPlayBin * playbin)
{
g_rec_mutex_init (&playbin->lock);
g_mutex_init (&playbin->dyn_lock);
/* assume we can create an input-selector */
playbin->have_selector = TRUE;
/* init groups */
playbin->curr_group = &playbin->groups[0];
playbin->next_group = &playbin->groups[1];
init_group (playbin, &playbin->groups[0]);
init_group (playbin, &playbin->groups[1]);
/* first filter out the interesting element factories */
g_mutex_init (&playbin->elements_lock);
/* add sink */
playbin->playsink =
g_object_new (GST_TYPE_PLAY_SINK, "name", "playsink", "send-event-mode",
1, NULL);
gst_bin_add (GST_BIN_CAST (playbin), GST_ELEMENT_CAST (playbin->playsink));
gst_play_sink_set_flags (playbin->playsink, DEFAULT_FLAGS);
/* Connect to notify::volume and notify::mute signals for proxying */
g_signal_connect (playbin->playsink, "notify::volume",
G_CALLBACK (notify_volume_cb), playbin);
g_signal_connect (playbin->playsink, "notify::mute",
G_CALLBACK (notify_mute_cb), playbin);
g_signal_connect (playbin->playsink, "value-changed",
G_CALLBACK (colorbalance_value_changed_cb), playbin);
playbin->current_video = DEFAULT_CURRENT_VIDEO;
playbin->current_audio = DEFAULT_CURRENT_AUDIO;
playbin->current_text = DEFAULT_CURRENT_TEXT;
playbin->buffer_duration = DEFAULT_BUFFER_DURATION;
playbin->buffer_size = DEFAULT_BUFFER_SIZE;
playbin->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
playbin->force_aspect_ratio = TRUE;
playbin->multiview_mode = GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE;
playbin->multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
}
static void
gst_play_bin_finalize (GObject * object)
{
GstPlayBin *playbin;
playbin = GST_PLAY_BIN (object);
free_group (playbin, &playbin->groups[0]);
free_group (playbin, &playbin->groups[1]);
if (playbin->source)
gst_object_unref (playbin->source);
/* Setting states to NULL is safe here because playsink
* will already be gone and none of these sinks will be
* a child of playsink
*/
if (playbin->video_sink) {
gst_element_set_state (playbin->video_sink, GST_STATE_NULL);
gst_object_unref (playbin->video_sink);
}
if (playbin->audio_sink) {
gst_element_set_state (playbin->audio_sink, GST_STATE_NULL);
gst_object_unref (playbin->audio_sink);
}
if (playbin->text_sink) {
gst_element_set_state (playbin->text_sink, GST_STATE_NULL);
gst_object_unref (playbin->text_sink);
}
if (playbin->video_stream_combiner) {
gst_element_set_state (playbin->video_stream_combiner, GST_STATE_NULL);
gst_object_unref (playbin->video_stream_combiner);
}
if (playbin->audio_stream_combiner) {
gst_element_set_state (playbin->audio_stream_combiner, GST_STATE_NULL);
gst_object_unref (playbin->audio_stream_combiner);
}
if (playbin->text_stream_combiner) {
gst_element_set_state (playbin->text_stream_combiner, GST_STATE_NULL);
gst_object_unref (playbin->text_stream_combiner);
}
if (playbin->elements)
gst_plugin_feature_list_free (playbin->elements);
if (playbin->aelements)
g_sequence_free (playbin->aelements);
if (playbin->velements)
g_sequence_free (playbin->velements);
g_list_free_full (playbin->contexts, (GDestroyNotify) gst_context_unref);
g_rec_mutex_clear (&playbin->lock);
g_mutex_clear (&playbin->dyn_lock);
g_mutex_clear (&playbin->elements_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_playbin_uri_is_valid (GstPlayBin * playbin, const gchar * uri)
{
const gchar *c;
GST_LOG_OBJECT (playbin, "checking uri '%s'", uri);
/* this just checks the protocol */
if (!gst_uri_is_valid (uri))
return FALSE;
for (c = uri; *c != '\0'; ++c) {
if (!g_ascii_isprint (*c))
goto invalid;
if (*c == ' ')
goto invalid;
}
return TRUE;
invalid:
{
GST_WARNING_OBJECT (playbin, "uri '%s' not valid, character #%u",
uri, (guint) ((guintptr) c - (guintptr) uri));
return FALSE;
}
}
static void
gst_play_bin_set_uri (GstPlayBin * playbin, const gchar * uri)
{
GstSourceGroup *group;
if (uri == NULL) {
g_warning ("cannot set NULL uri");
return;
}
if (!gst_playbin_uri_is_valid (playbin, uri)) {
if (g_str_has_prefix (uri, "file:")) {
GST_WARNING_OBJECT (playbin, "not entirely correct file URI '%s' - make "
"sure to escape spaces and non-ASCII characters properly and specify "
"an absolute path. Use gst_filename_to_uri() to convert filenames "
"to URIs", uri);
} else {
/* GST_ERROR_OBJECT (playbin, "malformed URI '%s'", uri); */
}
}
GST_PLAY_BIN_LOCK (playbin);
group = playbin->next_group;
GST_SOURCE_GROUP_LOCK (group);
/* store the uri in the next group we will play */
g_free (group->uri);
group->uri = g_strdup (uri);
group->valid = TRUE;
GST_SOURCE_GROUP_UNLOCK (group);
GST_DEBUG ("set new uri to %s", uri);
GST_PLAY_BIN_UNLOCK (playbin);
}
static void
gst_play_bin_set_suburi (GstPlayBin * playbin, const gchar * suburi)
{
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = playbin->next_group;
GST_SOURCE_GROUP_LOCK (group);
g_free (group->suburi);
group->suburi = g_strdup (suburi);
GST_SOURCE_GROUP_UNLOCK (group);
GST_DEBUG ("setting new .sub uri to %s", suburi);
GST_PLAY_BIN_UNLOCK (playbin);
}
static void
gst_play_bin_set_flags (GstPlayBin * playbin, GstPlayFlags flags)
{
GstPlayFlags old_flags;
old_flags = gst_play_sink_get_flags (playbin->playsink);
if (flags != old_flags) {
gst_play_sink_set_flags (playbin->playsink, flags);
gst_play_sink_reconfigure (playbin->playsink);
}
}
static GstPlayFlags
gst_play_bin_get_flags (GstPlayBin * playbin)
{
GstPlayFlags flags;
flags = gst_play_sink_get_flags (playbin->playsink);
return flags;
}
/* get the currently playing group or if nothing is playing, the next
* group. Must be called with the PLAY_BIN_LOCK. */
static GstSourceGroup *
get_group (GstPlayBin * playbin)
{
GstSourceGroup *result;
if (!(result = playbin->curr_group))
result = playbin->next_group;
return result;
}
static GstPad *
gst_play_bin_get_video_pad (GstPlayBin * playbin, gint stream)
{
GstPad *sinkpad = NULL;
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
if (stream < group->video_channels->len) {
sinkpad = g_ptr_array_index (group->video_channels, stream);
gst_object_ref (sinkpad);
}
GST_PLAY_BIN_UNLOCK (playbin);
return sinkpad;
}
static GstPad *
gst_play_bin_get_audio_pad (GstPlayBin * playbin, gint stream)
{
GstPad *sinkpad = NULL;
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
if (stream < group->audio_channels->len) {
sinkpad = g_ptr_array_index (group->audio_channels, stream);
gst_object_ref (sinkpad);
}
GST_PLAY_BIN_UNLOCK (playbin);
return sinkpad;
}
static GstPad *
gst_play_bin_get_text_pad (GstPlayBin * playbin, gint stream)
{
GstPad *sinkpad = NULL;
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
if (stream < group->text_channels->len) {
sinkpad = g_ptr_array_index (group->text_channels, stream);
gst_object_ref (sinkpad);
}
GST_PLAY_BIN_UNLOCK (playbin);
return sinkpad;
}
static GstTagList *
get_tags (GstPlayBin * playbin, GstSourceGroup * group, gint type, gint stream)
{
GstTagList *result;
GPtrArray *channels;
GstPad *sinkpad;
switch (type) {
case PLAYBIN_STREAM_AUDIO:
channels = group->audio_channels;
break;
case PLAYBIN_STREAM_VIDEO:
channels = group->video_channels;
break;
case PLAYBIN_STREAM_TEXT:
channels = group->text_channels;
break;
default:
channels = NULL;
break;
}
if (!channels || stream >= channels->len || !group->combiner[type].has_tags)
return NULL;
sinkpad = g_ptr_array_index (channels, stream);
g_object_get (sinkpad, "tags", &result, NULL);
return result;
}
static GstTagList *
gst_play_bin_get_video_tags (GstPlayBin * playbin, gint stream)
{
GstTagList *result;
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
result = get_tags (playbin, group, PLAYBIN_STREAM_VIDEO, stream);
GST_PLAY_BIN_UNLOCK (playbin);
return result;
}
static GstTagList *
gst_play_bin_get_audio_tags (GstPlayBin * playbin, gint stream)
{
GstTagList *result;
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
result = get_tags (playbin, group, PLAYBIN_STREAM_AUDIO, stream);
GST_PLAY_BIN_UNLOCK (playbin);
return result;
}
static GstTagList *
gst_play_bin_get_text_tags (GstPlayBin * playbin, gint stream)
{
GstTagList *result;
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
result = get_tags (playbin, group, PLAYBIN_STREAM_TEXT, stream);
GST_PLAY_BIN_UNLOCK (playbin);
return result;
}
static GstSample *
gst_play_bin_convert_sample (GstPlayBin * playbin, GstCaps * caps)
{
return gst_play_sink_convert_sample (playbin->playsink, caps);
}
/* Returns current stream number, or -1 if none has been selected yet */
static int
get_current_stream_number (GstPlayBin * playbin, GstSourceCombine * combine,
GPtrArray * channels)
{
/* Internal API cleanup would make this easier... */
int i;
GstPad *pad, *current;
GstObject *combiner = NULL;
int ret = -1;
if (!combine->has_active_pad) {
GST_WARNING_OBJECT (playbin,
"combiner doesn't have the \"active-pad\" property");
return ret;
}
for (i = 0; i < channels->len; i++) {
pad = g_ptr_array_index (channels, i);
if ((combiner = gst_pad_get_parent (pad))) {
g_object_get (combiner, "active-pad", &current, NULL);
gst_object_unref (combiner);
if (pad == current) {
gst_object_unref (current);
ret = i;
break;
}
if (current)
gst_object_unref (current);
}
}
return ret;
}
static gboolean
gst_play_bin_send_custom_event (GstObject * combiner, const gchar * event_name)
{
GstPad *src;
GstPad *peer;
GstStructure *s;
GstEvent *event;
gboolean ret = FALSE;
src = gst_element_get_static_pad (GST_ELEMENT_CAST (combiner), "src");
peer = gst_pad_get_peer (src);
if (peer) {
s = gst_structure_new_empty (event_name);
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_OOB, s);
gst_pad_send_event (peer, event);
gst_object_unref (peer);
ret = TRUE;
}
gst_object_unref (src);
return ret;
}
static gboolean
gst_play_bin_set_current_video_stream (GstPlayBin * playbin, gint stream)
{
GstSourceGroup *group;
GPtrArray *channels;
GstPad *sinkpad;
GST_PLAY_BIN_LOCK (playbin);
GST_DEBUG_OBJECT (playbin, "Changing current video stream %d -> %d",
playbin->current_video, stream);
group = get_group (playbin);
if (!group->combiner[PLAYBIN_STREAM_VIDEO].has_active_pad)
goto no_active_pad;
if (!(channels = group->video_channels))
goto no_channels;
if (stream == -1 || channels->len <= stream) {
sinkpad = NULL;
} else {
/* take channel from selected stream */
sinkpad = g_ptr_array_index (channels, stream);
}
if (sinkpad)
gst_object_ref (sinkpad);
GST_PLAY_BIN_UNLOCK (playbin);
if (sinkpad) {
GstObject *combiner;
if ((combiner = gst_pad_get_parent (sinkpad))) {
GstPad *old_sinkpad;
g_object_get (combiner, "active-pad", &old_sinkpad, NULL);
if (old_sinkpad != sinkpad) {
if (gst_play_bin_send_custom_event (combiner,
"playsink-custom-video-flush"))
playbin->video_pending_flush_finish = TRUE;
/* activate the selected pad */
g_object_set (combiner, "active-pad", sinkpad, NULL);
}
if (old_sinkpad)
gst_object_unref (old_sinkpad);
gst_object_unref (combiner);
}
gst_object_unref (sinkpad);
}
return TRUE;
no_active_pad:
{
GST_PLAY_BIN_UNLOCK (playbin);
GST_WARNING_OBJECT (playbin,
"can't switch video, the stream combiner's sink pads don't have the \"active-pad\" property");
return FALSE;
}
no_channels:
{
GST_PLAY_BIN_UNLOCK (playbin);
GST_DEBUG_OBJECT (playbin, "can't switch video, we have no channels");
return FALSE;
}
}
static gboolean
gst_play_bin_set_current_audio_stream (GstPlayBin * playbin, gint stream)
{
GstSourceGroup *group;
GPtrArray *channels;
GstPad *sinkpad;
GST_PLAY_BIN_LOCK (playbin);
GST_DEBUG_OBJECT (playbin, "Changing current audio stream %d -> %d",
playbin->current_audio, stream);
group = get_group (playbin);
if (!group->combiner[PLAYBIN_STREAM_AUDIO].has_active_pad)
goto no_active_pad;
if (!(channels = group->audio_channels))
goto no_channels;
if (stream == -1 || channels->len <= stream) {
sinkpad = NULL;
} else {
/* take channel from selected stream */
sinkpad = g_ptr_array_index (channels, stream);
}
if (sinkpad)
gst_object_ref (sinkpad);
GST_PLAY_BIN_UNLOCK (playbin);
if (sinkpad) {
GstObject *combiner;
if ((combiner = gst_pad_get_parent (sinkpad))) {
GstPad *old_sinkpad;
g_object_get (combiner, "active-pad", &old_sinkpad, NULL);
if (old_sinkpad != sinkpad) {
if (gst_play_bin_send_custom_event (combiner,
"playsink-custom-audio-flush"))
playbin->audio_pending_flush_finish = TRUE;
/* activate the selected pad */
g_object_set (combiner, "active-pad", sinkpad, NULL);
}
if (old_sinkpad)
gst_object_unref (old_sinkpad);
gst_object_unref (combiner);
}
gst_object_unref (sinkpad);
}
return TRUE;
no_active_pad:
{
GST_PLAY_BIN_UNLOCK (playbin);
GST_WARNING_OBJECT (playbin,
"can't switch audio, the stream combiner's sink pads don't have the \"active-pad\" property");
return FALSE;
}
no_channels:
{
GST_PLAY_BIN_UNLOCK (playbin);
GST_DEBUG_OBJECT (playbin, "can't switch audio, we have no channels");
return FALSE;
}
}
static void
gst_play_bin_suburidecodebin_seek_to_start (GstSourceGroup * group)
{
GstElement *suburidecodebin = group->suburidecodebin;
GstIterator *it = gst_element_iterate_src_pads (suburidecodebin);
GstPad *sinkpad;
GValue item = { 0, };
if (it && gst_iterator_next (it, &item) == GST_ITERATOR_OK
&& ((sinkpad = g_value_get_object (&item)) != NULL)) {
GstEvent *event;
guint32 seqnum;
event =
gst_event_new_seek (1.0, GST_FORMAT_BYTES, GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1);
seqnum = gst_event_get_seqnum (event);
/* store the seqnum to drop flushes from this seek later */
g_mutex_lock (&group->suburi_flushes_to_drop_lock);
group->suburi_flushes_to_drop =
g_slist_append (group->suburi_flushes_to_drop,
GUINT_TO_POINTER (seqnum));
g_mutex_unlock (&group->suburi_flushes_to_drop_lock);
if (!gst_pad_send_event (sinkpad, event)) {
event =
gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1);
gst_event_set_seqnum (event, seqnum);
if (!gst_pad_send_event (sinkpad, event)) {
GST_DEBUG_OBJECT (suburidecodebin, "Seeking to the beginning failed!");
g_mutex_lock (&group->suburi_flushes_to_drop_lock);
group->suburi_flushes_to_drop =
g_slist_remove (group->suburi_flushes_to_drop,
GUINT_TO_POINTER (seqnum));
g_mutex_unlock (&group->suburi_flushes_to_drop_lock);
}
}
g_value_unset (&item);
}
if (it)
gst_iterator_free (it);
}
static void
source_combine_remove_pads (GstPlayBin * playbin, GstSourceCombine * combine)
{
if (combine->sinkpad) {
GST_LOG_OBJECT (playbin, "unlinking from sink");
gst_pad_unlink (combine->srcpad, combine->sinkpad);
/* release back */
GST_LOG_OBJECT (playbin, "release sink pad");
gst_play_sink_release_pad (playbin->playsink, combine->sinkpad);
gst_object_unref (combine->sinkpad);
combine->sinkpad = NULL;
}
gst_object_unref (combine->srcpad);
combine->srcpad = NULL;
}
static GstPadProbeReturn
block_serialized_data_cb (GstPad * pad, GstPadProbeInfo * info,
gpointer user_data)
{
if (GST_IS_EVENT (info->data) && !GST_EVENT_IS_SERIALIZED (info->data)) {
GST_DEBUG_OBJECT (pad, "Letting non-serialized event %s pass",
GST_EVENT_TYPE_NAME (info->data));
return GST_PAD_PROBE_PASS;
}
return GST_PAD_PROBE_OK;
}
static void
gst_play_bin_suburidecodebin_block (GstSourceGroup * group,
GstElement * suburidecodebin, gboolean block)
{
GstIterator *it = gst_element_iterate_src_pads (suburidecodebin);
gboolean done = FALSE;
GValue item = { 0, };
GST_DEBUG_OBJECT (suburidecodebin, "Blocking suburidecodebin: %d", block);
if (!it)
return;
while (!done) {
GstPad *sinkpad;
switch (gst_iterator_next (it, &item)) {
case GST_ITERATOR_OK:
sinkpad = g_value_get_object (&item);
if (block) {
group->block_id =
gst_pad_add_probe (sinkpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
block_serialized_data_cb, NULL, NULL);
} else if (group->block_id) {
gst_pad_remove_probe (sinkpad, group->block_id);
group->block_id = 0;
}
g_value_reset (&item);
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
}
}
g_value_unset (&item);
gst_iterator_free (it);
}
static gboolean
gst_play_bin_set_current_text_stream (GstPlayBin * playbin, gint stream)
{
GstSourceGroup *group;
GPtrArray *channels;
GstPad *sinkpad;
GST_PLAY_BIN_LOCK (playbin);
GST_DEBUG_OBJECT (playbin, "Changing current text stream %d -> %d",
playbin->current_text, stream);
group = get_group (playbin);
if (!group->combiner[PLAYBIN_STREAM_TEXT].has_active_pad)
goto no_active_pad;
if (!(channels = group->text_channels))
goto no_channels;
if (stream == -1 || channels->len <= stream) {
sinkpad = NULL;
} else {
/* take channel from selected stream */
sinkpad = g_ptr_array_index (channels, stream);
}
if (sinkpad)
gst_object_ref (sinkpad);
GST_PLAY_BIN_UNLOCK (playbin);
if (sinkpad) {
GstObject *combiner;
if ((combiner = gst_pad_get_parent (sinkpad))) {
GstPad *old_sinkpad;
g_object_get (combiner, "active-pad", &old_sinkpad, NULL);
if (old_sinkpad != sinkpad) {
gboolean need_unblock, need_block, need_seek;
GstPad *peer = NULL, *oldpeer = NULL;
GstElement *parent_element = NULL, *old_parent_element = NULL;
/* Now check if we need to seek the suburidecodebin to the beginning
* or if we need to block all suburidecodebin sinkpads or if we need
* to unblock all suburidecodebin sinkpads
*/
if (sinkpad)
peer = gst_pad_get_peer (sinkpad);
if (old_sinkpad)
oldpeer = gst_pad_get_peer (old_sinkpad);
if (peer)
parent_element = gst_pad_get_parent_element (peer);
if (oldpeer)
old_parent_element = gst_pad_get_parent_element (oldpeer);
need_block = (old_parent_element == group->suburidecodebin
&& parent_element != old_parent_element);
need_unblock = (parent_element == group->suburidecodebin
&& parent_element != old_parent_element);
need_seek = (parent_element == group->suburidecodebin);
if (peer)
gst_object_unref (peer);
if (oldpeer)
gst_object_unref (oldpeer);
if (parent_element)
gst_object_unref (parent_element);
if (old_parent_element)
gst_object_unref (old_parent_element);
/* Block all suburidecodebin sinkpads */
if (need_block)
gst_play_bin_suburidecodebin_block (group, group->suburidecodebin,
TRUE);
if (gst_play_bin_send_custom_event (combiner,
"playsink-custom-subtitle-flush"))
playbin->text_pending_flush_finish = TRUE;
/* activate the selected pad */
g_object_set (combiner, "active-pad", sinkpad, NULL);
/* Unblock pads if necessary */
if (need_unblock)
gst_play_bin_suburidecodebin_block (group, group->suburidecodebin,
FALSE);
/* seek to the beginning */
if (need_seek)
gst_play_bin_suburidecodebin_seek_to_start (group);
}
gst_object_unref (combiner);
if (old_sinkpad)
gst_object_unref (old_sinkpad);
}
gst_object_unref (sinkpad);
}
return TRUE;
no_active_pad:
{
GST_PLAY_BIN_UNLOCK (playbin);
GST_WARNING_OBJECT (playbin,
"can't switch text, the stream combiner's sink pads don't have the \"active-pad\" property");
return FALSE;
}
no_channels:
{
GST_PLAY_BIN_UNLOCK (playbin);
return FALSE;
}
}
static void
gst_play_bin_set_sink (GstPlayBin * playbin, GstPlaySinkType type,
const gchar * dbg, GstElement ** elem, GstElement * sink)
{
GST_INFO_OBJECT (playbin, "Setting %s sink to %" GST_PTR_FORMAT, dbg, sink);
gst_play_sink_set_sink (playbin->playsink, type, sink);
if (*elem)
gst_object_unref (*elem);
*elem = sink ? gst_object_ref (sink) : NULL;
}
static void
gst_play_bin_set_stream_combiner (GstPlayBin * playbin, GstElement ** elem,
const gchar * dbg, GstElement * combiner)
{
GST_INFO_OBJECT (playbin, "Setting %s stream combiner to %" GST_PTR_FORMAT,
dbg, combiner);
GST_PLAY_BIN_LOCK (playbin);
if (*elem != combiner) {
GstElement *old;
old = *elem;
if (combiner)
gst_object_ref_sink (combiner);
*elem = combiner;
if (old)
gst_object_unref (old);
}
GST_LOG_OBJECT (playbin, "%s stream combiner now %" GST_PTR_FORMAT, dbg,
*elem);
GST_PLAY_BIN_UNLOCK (playbin);
}
static void
gst_play_bin_set_encoding (GstPlayBin * playbin, const gchar * encoding)
{
GstElement *elem;
GST_PLAY_BIN_LOCK (playbin);
/* set subtitles on all current and next decodebins. */
if ((elem = playbin->groups[0].uridecodebin))
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
if ((elem = playbin->groups[0].suburidecodebin))
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
if ((elem = playbin->groups[1].uridecodebin))
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
if ((elem = playbin->groups[1].suburidecodebin))
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
gst_play_sink_set_subtitle_encoding (playbin->playsink, encoding);
GST_PLAY_BIN_UNLOCK (playbin);
}
static void
gst_play_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPlayBin *playbin = GST_PLAY_BIN (object);
switch (prop_id) {
case PROP_URI:
gst_play_bin_set_uri (playbin, g_value_get_string (value));
break;
case PROP_SUBURI:
gst_play_bin_set_suburi (playbin, g_value_get_string (value));
break;
case PROP_FLAGS:
gst_play_bin_set_flags (playbin, g_value_get_flags (value));
if (playbin->curr_group) {
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->uridecodebin) {
g_object_set (playbin->curr_group->uridecodebin, "download",
(g_value_get_flags (value) & GST_PLAY_FLAG_DOWNLOAD) != 0, NULL);
}
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
}
break;
case PROP_CURRENT_VIDEO:
gst_play_bin_set_current_video_stream (playbin, g_value_get_int (value));
break;
case PROP_CURRENT_AUDIO:
gst_play_bin_set_current_audio_stream (playbin, g_value_get_int (value));
break;
case PROP_CURRENT_TEXT:
gst_play_bin_set_current_text_stream (playbin, g_value_get_int (value));
break;
case PROP_SUBTITLE_ENCODING:
gst_play_bin_set_encoding (playbin, g_value_get_string (value));
break;
case PROP_VIDEO_FILTER:
gst_play_sink_set_filter (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO,
GST_ELEMENT (g_value_get_object (value)));
break;
case PROP_AUDIO_FILTER:
gst_play_sink_set_filter (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO,
GST_ELEMENT (g_value_get_object (value)));
break;
case PROP_VIDEO_SINK:
gst_play_bin_set_sink (playbin, GST_PLAY_SINK_TYPE_VIDEO, "video",
&playbin->video_sink, g_value_get_object (value));
break;
case PROP_AUDIO_SINK:
gst_play_bin_set_sink (playbin, GST_PLAY_SINK_TYPE_AUDIO, "audio",
&playbin->audio_sink, g_value_get_object (value));
break;
case PROP_VIS_PLUGIN:
gst_play_sink_set_vis_plugin (playbin->playsink,
g_value_get_object (value));
break;
case PROP_TEXT_SINK:
gst_play_bin_set_sink (playbin, GST_PLAY_SINK_TYPE_TEXT, "text",
&playbin->text_sink, g_value_get_object (value));
break;
case PROP_VIDEO_STREAM_COMBINER:
gst_play_bin_set_stream_combiner (playbin,
&playbin->video_stream_combiner, "video", g_value_get_object (value));
break;
case PROP_AUDIO_STREAM_COMBINER:
gst_play_bin_set_stream_combiner (playbin,
&playbin->audio_stream_combiner, "audio", g_value_get_object (value));
break;
case PROP_TEXT_STREAM_COMBINER:
gst_play_bin_set_stream_combiner (playbin,
&playbin->text_stream_combiner, "text", g_value_get_object (value));
break;
case PROP_VOLUME:
gst_play_sink_set_volume (playbin->playsink, g_value_get_double (value));
break;
case PROP_MUTE:
gst_play_sink_set_mute (playbin->playsink, g_value_get_boolean (value));
break;
case PROP_FONT_DESC:
gst_play_sink_set_font_desc (playbin->playsink,
g_value_get_string (value));
break;
case PROP_CONNECTION_SPEED:
GST_PLAY_BIN_LOCK (playbin);
playbin->connection_speed = g_value_get_uint64 (value) * 1000;
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_BUFFER_SIZE:
playbin->buffer_size = g_value_get_int (value);
break;
case PROP_BUFFER_DURATION:
playbin->buffer_duration = g_value_get_int64 (value);
break;
case PROP_AV_OFFSET:
gst_play_sink_set_av_offset (playbin->playsink,
g_value_get_int64 (value));
break;
case PROP_RING_BUFFER_MAX_SIZE:
playbin->ring_buffer_max_size = g_value_get_uint64 (value);
if (playbin->curr_group) {
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->uridecodebin) {
g_object_set (playbin->curr_group->uridecodebin,
"ring-buffer-max-size", playbin->ring_buffer_max_size, NULL);
}
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
}
break;
case PROP_FORCE_ASPECT_RATIO:
g_object_set (playbin->playsink, "force-aspect-ratio",
g_value_get_boolean (value), NULL);
break;
case PROP_MULTIVIEW_MODE:
GST_PLAY_BIN_LOCK (playbin);
playbin->multiview_mode = g_value_get_enum (value);
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_MULTIVIEW_FLAGS:
GST_PLAY_BIN_LOCK (playbin);
playbin->multiview_flags = g_value_get_flags (value);
GST_PLAY_BIN_UNLOCK (playbin);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElement *
gst_play_bin_get_current_sink (GstPlayBin * playbin, GstElement ** elem,
const gchar * dbg, GstPlaySinkType type)
{
GstElement *sink = gst_play_sink_get_sink (playbin->playsink, type);
GST_LOG_OBJECT (playbin, "play_sink_get_sink() returned %s sink %"
GST_PTR_FORMAT ", the originally set %s sink is %" GST_PTR_FORMAT,
dbg, sink, dbg, *elem);
if (sink == NULL) {
GST_PLAY_BIN_LOCK (playbin);
if ((sink = *elem))
gst_object_ref (sink);
GST_PLAY_BIN_UNLOCK (playbin);
}
return sink;
}
static GstElement *
gst_play_bin_get_current_stream_combiner (GstPlayBin * playbin,
GstElement ** elem, const gchar * dbg, int stream_type)
{
GstElement *combiner;
GST_PLAY_BIN_LOCK (playbin);
if ((combiner = playbin->curr_group->combiner[stream_type].combiner))
gst_object_ref (combiner);
else if ((combiner = *elem))
gst_object_ref (combiner);
GST_PLAY_BIN_UNLOCK (playbin);
return combiner;
}
static void
gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstPlayBin *playbin = GST_PLAY_BIN (object);
switch (prop_id) {
case PROP_URI:
{
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = playbin->next_group;
g_value_set_string (value, group->uri);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_CURRENT_URI:
{
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
g_value_set_string (value, group->uri);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_SUBURI:
{
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = playbin->next_group;
g_value_set_string (value, group->suburi);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_CURRENT_SUBURI:
{
GstSourceGroup *group;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
g_value_set_string (value, group->suburi);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_SOURCE:
{
GST_OBJECT_LOCK (playbin);
g_value_set_object (value, playbin->source);
GST_OBJECT_UNLOCK (playbin);
break;
}
case PROP_FLAGS:
g_value_set_flags (value, gst_play_bin_get_flags (playbin));
break;
case PROP_N_VIDEO:
{
GstSourceGroup *group;
gint n_video;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
n_video = (group->video_channels ? group->video_channels->len : 0);
g_value_set_int (value, n_video);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_CURRENT_VIDEO:
GST_PLAY_BIN_LOCK (playbin);
g_value_set_int (value, playbin->current_video);
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_N_AUDIO:
{
GstSourceGroup *group;
gint n_audio;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
n_audio = (group->audio_channels ? group->audio_channels->len : 0);
g_value_set_int (value, n_audio);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_CURRENT_AUDIO:
GST_PLAY_BIN_LOCK (playbin);
g_value_set_int (value, playbin->current_audio);
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_N_TEXT:
{
GstSourceGroup *group;
gint n_text;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
n_text = (group->text_channels ? group->text_channels->len : 0);
g_value_set_int (value, n_text);
GST_PLAY_BIN_UNLOCK (playbin);
break;
}
case PROP_CURRENT_TEXT:
GST_PLAY_BIN_LOCK (playbin);
g_value_set_int (value, playbin->current_text);
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_SUBTITLE_ENCODING:
GST_PLAY_BIN_LOCK (playbin);
g_value_take_string (value,
gst_play_sink_get_subtitle_encoding (playbin->playsink));
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_VIDEO_FILTER:
g_value_take_object (value,
gst_play_sink_get_filter (playbin->playsink,
GST_PLAY_SINK_TYPE_VIDEO));
break;
case PROP_AUDIO_FILTER:
g_value_take_object (value,
gst_play_sink_get_filter (playbin->playsink,
GST_PLAY_SINK_TYPE_AUDIO));
break;
case PROP_VIDEO_SINK:
g_value_take_object (value,
gst_play_bin_get_current_sink (playbin, &playbin->video_sink,
"video", GST_PLAY_SINK_TYPE_VIDEO));
break;
case PROP_AUDIO_SINK:
g_value_take_object (value,
gst_play_bin_get_current_sink (playbin, &playbin->audio_sink,
"audio", GST_PLAY_SINK_TYPE_AUDIO));
break;
case PROP_VIS_PLUGIN:
g_value_take_object (value,
gst_play_sink_get_vis_plugin (playbin->playsink));
break;
case PROP_TEXT_SINK:
g_value_take_object (value,
gst_play_bin_get_current_sink (playbin, &playbin->text_sink,
"text", GST_PLAY_SINK_TYPE_TEXT));
break;
case PROP_VIDEO_STREAM_COMBINER:
g_value_take_object (value,
gst_play_bin_get_current_stream_combiner (playbin,
&playbin->video_stream_combiner, "video", PLAYBIN_STREAM_VIDEO));
break;
case PROP_AUDIO_STREAM_COMBINER:
g_value_take_object (value,
gst_play_bin_get_current_stream_combiner (playbin,
&playbin->audio_stream_combiner, "audio", PLAYBIN_STREAM_AUDIO));
break;
case PROP_TEXT_STREAM_COMBINER:
g_value_take_object (value,
gst_play_bin_get_current_stream_combiner (playbin,
&playbin->text_stream_combiner, "text", PLAYBIN_STREAM_TEXT));
break;
case PROP_VOLUME:
g_value_set_double (value, gst_play_sink_get_volume (playbin->playsink));
break;
case PROP_MUTE:
g_value_set_boolean (value, gst_play_sink_get_mute (playbin->playsink));
break;
case PROP_SAMPLE:
gst_value_take_sample (value,
gst_play_sink_get_last_sample (playbin->playsink));
break;
case PROP_FONT_DESC:
g_value_take_string (value,
gst_play_sink_get_font_desc (playbin->playsink));
break;
case PROP_CONNECTION_SPEED:
GST_PLAY_BIN_LOCK (playbin);
g_value_set_uint64 (value, playbin->connection_speed / 1000);
GST_PLAY_BIN_UNLOCK (playbin);
break;
case PROP_BUFFER_SIZE:
GST_OBJECT_LOCK (playbin);
g_value_set_int (value, playbin->buffer_size);
GST_OBJECT_UNLOCK (playbin);
break;
case PROP_BUFFER_DURATION:
GST_OBJECT_LOCK (playbin);
g_value_set_int64 (value, playbin->buffer_duration);
GST_OBJECT_UNLOCK (playbin);
break;
case PROP_AV_OFFSET:
g_value_set_int64 (value,
gst_play_sink_get_av_offset (playbin->playsink));
break;
case PROP_RING_BUFFER_MAX_SIZE:
g_value_set_uint64 (value, playbin->ring_buffer_max_size);
break;
case PROP_FORCE_ASPECT_RATIO:{
gboolean v;
g_object_get (playbin->playsink, "force-aspect-ratio", &v, NULL);
g_value_set_boolean (value, v);
break;
}
case PROP_MULTIVIEW_MODE:
GST_OBJECT_LOCK (playbin);
g_value_set_enum (value, playbin->multiview_mode);
GST_OBJECT_UNLOCK (playbin);
break;
case PROP_MULTIVIEW_FLAGS:
GST_OBJECT_LOCK (playbin);
g_value_set_flags (value, playbin->multiview_flags);
GST_OBJECT_UNLOCK (playbin);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_play_bin_update_cached_duration_from_query (GstPlayBin * playbin,
gboolean valid, GstQuery * query)
{
GstFormat fmt;
gint64 duration;
gint i;
GST_DEBUG_OBJECT (playbin, "Updating cached duration from query");
gst_query_parse_duration (query, &fmt, &duration);
for (i = 0; i < G_N_ELEMENTS (playbin->duration); i++) {
if (playbin->duration[i].format == 0 || fmt == playbin->duration[i].format) {
playbin->duration[i].valid = valid;
playbin->duration[i].format = fmt;
playbin->duration[i].duration = valid ? duration : -1;
break;
}
}
}
static void
gst_play_bin_update_cached_duration (GstPlayBin * playbin)
{
const GstFormat formats[] =
{ GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT };
gboolean ret;
GstQuery *query;
gint i;
GST_DEBUG_OBJECT (playbin, "Updating cached durations before group switch");
for (i = 0; i < G_N_ELEMENTS (formats); i++) {
query = gst_query_new_duration (formats[i]);
ret =
GST_ELEMENT_CLASS (parent_class)->query (GST_ELEMENT_CAST (playbin),
query);
gst_play_bin_update_cached_duration_from_query (playbin, ret, query);
gst_query_unref (query);
}
}
static gboolean
gst_play_bin_query (GstElement * element, GstQuery * query)
{
GstPlayBin *playbin = GST_PLAY_BIN (element);
gboolean ret;
/* During a group switch we shouldn't allow duration queries
* because it's not clear if the old or new group's duration
* is returned and if the sinks are already playing new data
* or old data. See bug #585969
*
* While we're at it, also don't do any other queries during
* a group switch or any other event that causes topology changes
* by taking the playbin lock in any case.
*/
GST_PLAY_BIN_LOCK (playbin);
if (GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
GstSourceGroup *group = playbin->curr_group;
gboolean pending;
GST_SOURCE_GROUP_LOCK (group);
pending = group->pending || group->stream_changed_pending;
if (pending) {
GstFormat fmt;
gint i;
ret = FALSE;
gst_query_parse_duration (query, &fmt, NULL);
for (i = 0; i < G_N_ELEMENTS (playbin->duration); i++) {
if (fmt == playbin->duration[i].format) {
ret = playbin->duration[i].valid;
gst_query_set_duration (query, fmt,
(ret ? playbin->duration[i].duration : -1));
break;
}
}
/* if nothing cached yet, we might as well request duration,
* such as during initial startup */
if (ret) {
GST_DEBUG_OBJECT (playbin,
"Taking cached duration because of pending group switch: %d", ret);
GST_SOURCE_GROUP_UNLOCK (group);
GST_PLAY_BIN_UNLOCK (playbin);
return ret;
}
}
GST_SOURCE_GROUP_UNLOCK (group);
}
ret = GST_ELEMENT_CLASS (parent_class)->query (element, query);
if (GST_QUERY_TYPE (query) == GST_QUERY_DURATION)
gst_play_bin_update_cached_duration_from_query (playbin, ret, query);
GST_PLAY_BIN_UNLOCK (playbin);
return ret;
}
/* mime types we are not handling on purpose right now, don't post a
* missing-plugin message for these */
static const gchar *blacklisted_mimes[] = {
NULL
};
static void
gst_play_bin_handle_message (GstBin * bin, GstMessage * msg)
{
GstPlayBin *playbin = GST_PLAY_BIN (bin);
GstSourceGroup *group;
if (gst_is_missing_plugin_message (msg)) {
gchar *detail;
guint i;
detail = gst_missing_plugin_message_get_installer_detail (msg);
for (i = 0; detail != NULL && blacklisted_mimes[i] != NULL; ++i) {
if (strstr (detail, "|decoder-") && strstr (detail, blacklisted_mimes[i])) {
GST_LOG_OBJECT (bin, "suppressing message %" GST_PTR_FORMAT, msg);
gst_message_unref (msg);
g_free (detail);
return;
}
}
g_free (detail);
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ASYNC_START ||
GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ASYNC_DONE) {
GstObject *src = GST_OBJECT_CAST (msg->src);
/* Ignore async state changes from the uridecodebin children,
* see bug #602000. */
group = playbin->curr_group;
if (src && group &&
((group->uridecodebin && src == GST_OBJECT_CAST (group->uridecodebin))
|| (group->suburidecodebin
&& src == GST_OBJECT_CAST (group->suburidecodebin)))) {
GST_DEBUG_OBJECT (playbin,
"Ignoring async state change of uridecodebin: %s",
GST_OBJECT_NAME (src));
gst_message_unref (msg);
msg = NULL;
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_STREAM_START) {
GstSourceGroup *new_group = playbin->curr_group;
GstMessage *buffering_msg = NULL;
GST_SOURCE_GROUP_LOCK (new_group);
new_group->stream_changed_pending = FALSE;
if (new_group->pending_buffering_msg) {
buffering_msg = new_group->pending_buffering_msg;
new_group->pending_buffering_msg = NULL;
}
GST_SOURCE_GROUP_UNLOCK (new_group);
GST_DEBUG_OBJECT (playbin, "Stream start from new group %p", new_group);
if (buffering_msg) {
GST_DEBUG_OBJECT (playbin, "Posting pending buffering message: %"
GST_PTR_FORMAT, buffering_msg);
GST_BIN_CLASS (parent_class)->handle_message (bin, buffering_msg);
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_BUFFERING) {
GstSourceGroup *group = playbin->curr_group;
gboolean pending;
/* drop buffering messages from child queues while we are switching
* groups (because the application set a new uri in about-to-finish)
* if the playsink queue still has buffers to play */
GST_SOURCE_GROUP_LOCK (group);
pending = group->stream_changed_pending;
if (pending) {
GST_DEBUG_OBJECT (playbin, "Storing buffering message from pending group "
"%p %" GST_PTR_FORMAT, group, msg);
gst_message_replace (&group->pending_buffering_msg, msg);
gst_message_unref (msg);
msg = NULL;
}
GST_SOURCE_GROUP_UNLOCK (group);
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
/* If we get an error of the subtitle uridecodebin transform
* them into warnings and disable the subtitles */
group = playbin->curr_group;
if (group && group->suburidecodebin) {
if (G_UNLIKELY (gst_object_has_as_ancestor (msg->src, GST_OBJECT_CAST
(group->suburidecodebin)))) {
GError *err;
gchar *debug = NULL;
GstMessage *new_msg;
GstIterator *it;
gboolean done = FALSE;
GValue item = { 0, };
gst_message_parse_error (msg, &err, &debug);
new_msg = gst_message_new_warning (msg->src, err, debug);
gst_message_unref (msg);
g_error_free (err);
g_free (debug);
msg = new_msg;
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_query_id);
it = gst_element_iterate_src_pads (group->suburidecodebin);
while (it && !done) {
GstPad *p = NULL;
GstIteratorResult res;
res = gst_iterator_next (it, &item);
switch (res) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
p = g_value_get_object (&item);
pad_removed_cb (NULL, p, group);
g_value_reset (&item);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
}
}
g_value_unset (&item);
if (it)
gst_iterator_free (it);
gst_object_ref (group->suburidecodebin);
gst_bin_remove (bin, group->suburidecodebin);
gst_element_set_locked_state (group->suburidecodebin, FALSE);
GST_SOURCE_GROUP_LOCK (group);
g_free (group->suburi);
group->suburi = NULL;
GST_SOURCE_GROUP_UNLOCK (group);
if (group->sub_pending) {
group->sub_pending = FALSE;
no_more_pads_cb (NULL, group);
}
}
}
}
if (msg)
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
}
static void
combiner_active_pad_changed (GObject * combiner, GParamSpec * pspec,
GstPlayBin * playbin)
{
const gchar *property;
GstSourceGroup *group;
GstSourceCombine *combine = NULL;
int i;
GST_PLAY_BIN_LOCK (playbin);
group = get_group (playbin);
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
if (combiner == G_OBJECT (group->combiner[i].combiner)) {
combine = &group->combiner[i];
}
}
/* We got a pad-change after our group got switched out; no need to notify */
if (!combine) {
GST_PLAY_BIN_UNLOCK (playbin);
return;
}
switch (combine->type) {
case GST_PLAY_SINK_TYPE_VIDEO:
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
property = "current-video";
playbin->current_video = get_current_stream_number (playbin,
combine, group->video_channels);
if (playbin->video_pending_flush_finish) {
playbin->video_pending_flush_finish = FALSE;
GST_PLAY_BIN_UNLOCK (playbin);
gst_play_bin_send_custom_event (GST_OBJECT (combiner),
"playsink-custom-video-flush-finish");
goto notify;
}
break;
case GST_PLAY_SINK_TYPE_AUDIO:
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
property = "current-audio";
playbin->current_audio = get_current_stream_number (playbin,
combine, group->audio_channels);
if (playbin->audio_pending_flush_finish) {
playbin->audio_pending_flush_finish = FALSE;
GST_PLAY_BIN_UNLOCK (playbin);
gst_play_bin_send_custom_event (GST_OBJECT (combiner),
"playsink-custom-audio-flush-finish");
goto notify;
}
break;
case GST_PLAY_SINK_TYPE_TEXT:
property = "current-text";
playbin->current_text = get_current_stream_number (playbin,
combine, group->text_channels);
if (playbin->text_pending_flush_finish) {
playbin->text_pending_flush_finish = FALSE;
GST_PLAY_BIN_UNLOCK (playbin);
gst_play_bin_send_custom_event (GST_OBJECT (combiner),
"playsink-custom-subtitle-flush-finish");
goto notify;
}
break;
default:
property = NULL;
}
GST_PLAY_BIN_UNLOCK (playbin);
notify:
if (property)
g_object_notify (G_OBJECT (playbin), property);
}
static GstCaps *
update_video_multiview_caps (GstPlayBin * playbin, GstCaps * caps)
{
GstVideoMultiviewMode mv_mode;
GstVideoMultiviewMode cur_mv_mode;
GstVideoMultiviewFlags mv_flags, cur_mv_flags;
GstStructure *s;
const gchar *mview_mode_str;
GstCaps *out_caps;
GST_OBJECT_LOCK (playbin);
mv_mode = (GstVideoMultiviewMode) playbin->multiview_mode;
mv_flags = playbin->multiview_flags;
GST_OBJECT_UNLOCK (playbin);
if (mv_mode == GST_VIDEO_MULTIVIEW_MODE_NONE)
return NULL;
cur_mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
cur_mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
s = gst_caps_get_structure (caps, 0);
gst_structure_get_flagset (s, "multiview-flags", &cur_mv_flags, NULL);
if ((mview_mode_str = gst_structure_get_string (s, "multiview-mode")))
cur_mv_mode = gst_video_multiview_mode_from_caps_string (mview_mode_str);
/* We can't override an existing annotated multiview mode, except
* maybe (in the future) we could change some flags. */
if ((gint) cur_mv_mode > GST_VIDEO_MULTIVIEW_MAX_FRAME_PACKING) {
GST_INFO_OBJECT (playbin, "Cannot override existing multiview mode");
return NULL;
}
mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
g_assert (mview_mode_str != NULL);
out_caps = gst_caps_copy (caps);
s = gst_caps_get_structure (out_caps, 0);
gst_structure_set (s, "multiview-mode", G_TYPE_STRING, mview_mode_str,
"multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
GST_FLAG_SET_MASK_EXACT, NULL);
return out_caps;
}
static GstPadProbeReturn
_uridecodebin_event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer udata)
{
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
GstSourceGroup *group = udata;
GstEvent *event = GST_PAD_PROBE_INFO_DATA (info);
gboolean suburidecodebin = (GST_PAD_PARENT (pad) == group->suburidecodebin);
if (suburidecodebin) {
/* Drop flushes that we caused from the suburidecodebin */
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
case GST_EVENT_FLUSH_STOP:
{
guint32 seqnum = gst_event_get_seqnum (event);
GSList *item = g_slist_find (group->suburi_flushes_to_drop,
GUINT_TO_POINTER (seqnum));
if (item) {
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) {
group->suburi_flushes_to_drop =
g_slist_delete_link (group->suburi_flushes_to_drop, item);
}
}
}
default:
break;
}
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:{
guint group_id;
GST_SOURCE_GROUP_LOCK (group);
if (gst_event_parse_group_id (event, &group_id)) {
if (group->have_group_id) {
if (group->group_id != group_id) {
event = gst_event_copy (event);
gst_event_set_group_id (event, group->group_id);
gst_event_replace ((GstEvent **) & info->data, event);
gst_event_unref (event);
}
} else {
group->group_id = group_id;
group->have_group_id = TRUE;
}
} else {
GST_FIXME_OBJECT (pad,
"Consider implementing group-id handling on stream-start event");
if (!group->have_group_id) {
group->group_id = gst_util_group_id_next ();
group->have_group_id = TRUE;
}
event = gst_event_copy (event);
gst_event_set_group_id (event, group->group_id);
gst_event_replace ((GstEvent **) & info->data, event);
gst_event_unref (event);
}
GST_SOURCE_GROUP_UNLOCK (group);
break;
}
case GST_EVENT_CAPS:{
GstCaps *caps = NULL;
const GstStructure *s;
const gchar *name;
gst_event_parse_caps (event, &caps);
/* If video caps, check if we should override multiview flags */
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
if (g_str_has_prefix (name, "video/")) {
caps = update_video_multiview_caps (group->playbin, caps);
if (caps) {
gst_event_unref (event);
event = gst_event_new_caps (caps);
GST_PAD_PROBE_INFO_DATA (info) = event;
gst_caps_unref (caps);
}
}
break;
}
default:
break;
}
return ret;
}
/* helper function to lookup stuff in lists */
static gboolean
array_has_value (const gchar * values[], const gchar * value, gboolean exact)
{
gint i;
for (i = 0; values[i]; i++) {
if (exact && !strcmp (value, values[i]))
return TRUE;
if (!exact && g_str_has_prefix (value, values[i]))
return TRUE;
}
return FALSE;
}
typedef struct
{
GstPlayBin *playbin;
gint stream_id;
GstPlaySinkType type;
} NotifyTagsData;
static void
notify_tags_cb (GObject * object, GParamSpec * pspec, gpointer user_data)
{
NotifyTagsData *ntdata = (NotifyTagsData *) user_data;
gint signal;
GST_DEBUG_OBJECT (ntdata->playbin, "Tags on pad %" GST_PTR_FORMAT
" with stream id %d and type %d have changed",
object, ntdata->stream_id, ntdata->type);
switch (ntdata->type) {
case GST_PLAY_SINK_TYPE_VIDEO:
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
signal = SIGNAL_VIDEO_TAGS_CHANGED;
break;
case GST_PLAY_SINK_TYPE_AUDIO:
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
signal = SIGNAL_AUDIO_TAGS_CHANGED;
break;
case GST_PLAY_SINK_TYPE_TEXT:
signal = SIGNAL_TEXT_TAGS_CHANGED;
break;
default:
signal = -1;
break;
}
if (signal >= 0)
g_signal_emit (G_OBJECT (ntdata->playbin), gst_play_bin_signals[signal], 0,
ntdata->stream_id);
}
/* this function is called when a new pad is added to decodebin. We check the
* type of the pad and add it to the combiner element of the group.
*/
static void
pad_added_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
{
GstPlayBin *playbin;
GstCaps *caps;
const GstStructure *s;
const gchar *name;
GstPad *sinkpad;
GstPadLinkReturn res;
GstSourceCombine *combine = NULL;
gint i, pass;
gboolean changed = FALSE;
GstElement *custom_combiner = NULL;
gulong group_id_probe_handler;
playbin = group->playbin;
GST_PLAY_BIN_SHUTDOWN_LOCK (playbin, shutdown);
caps = gst_pad_get_current_caps (pad);
if (!caps)
caps = gst_pad_query_caps (pad, NULL);
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
GST_DEBUG_OBJECT (playbin,
"pad %s:%s with caps %" GST_PTR_FORMAT " added in group %p",
GST_DEBUG_PAD_NAME (pad), caps, group);
/* major type of the pad, this determines the combiner to use,
try exact match first */
for (pass = 0; !combine && pass < 2; pass++) {
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
if (array_has_value (group->combiner[i].media_list, name, pass == 0)) {
combine = &group->combiner[i];
break;
} else if (group->combiner[i].get_media_caps) {
GstCaps *media_caps = group->combiner[i].get_media_caps ();
if (media_caps && gst_caps_can_intersect (media_caps, caps)) {
combine = &group->combiner[i];
gst_caps_unref (media_caps);
break;
}
gst_caps_unref (media_caps);
}
}
/* get custom stream combiner if there is one */
if (combine) {
if (i == PLAYBIN_STREAM_AUDIO) {
custom_combiner = playbin->audio_stream_combiner;
} else if (i == PLAYBIN_STREAM_TEXT) {
custom_combiner = playbin->text_stream_combiner;
} else if (i == PLAYBIN_STREAM_VIDEO) {
custom_combiner = playbin->video_stream_combiner;
}
}
}
/* no combiner found for the media type, don't bother linking it to a
* combiner. This will leave the pad unlinked and thus ignored. */
if (combine == NULL) {
GST_PLAY_BIN_SHUTDOWN_UNLOCK (playbin);
goto unknown_type;
}
GST_SOURCE_GROUP_LOCK (group);
if (combine->combiner == NULL && playbin->have_selector) {
/* no combiner, create one */
GST_DEBUG_OBJECT (playbin, "creating new input selector");
if (custom_combiner)
combine->combiner = custom_combiner;
else
combine->combiner = gst_element_factory_make ("input-selector", NULL);
if (combine->combiner == NULL) {
/* post the missing input-selector message only once */
playbin->have_selector = FALSE;
gst_element_post_message (GST_ELEMENT_CAST (playbin),
gst_missing_element_message_new (GST_ELEMENT_CAST (playbin),
"input-selector"));
GST_ELEMENT_WARNING (playbin, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"input-selector"), (NULL));
} else {
/* find out which properties the stream combiner supports */
combine->has_active_pad =
g_object_class_find_property (G_OBJECT_GET_CLASS (combine->combiner),
"active-pad") != NULL;
if (!custom_combiner) {
/* sync-mode=1, use clock */
if (combine->type == GST_PLAY_SINK_TYPE_TEXT)
g_object_set (combine->combiner, "sync-streams", TRUE,
"sync-mode", 1, "cache-buffers", TRUE, NULL);
else
g_object_set (combine->combiner, "sync-streams", TRUE, NULL);
}
if (combine->has_active_pad)
g_signal_connect (combine->combiner, "notify::active-pad",
G_CALLBACK (combiner_active_pad_changed), playbin);
GST_DEBUG_OBJECT (playbin, "adding new stream combiner %p",
combine->combiner);
gst_element_set_state (combine->combiner, GST_STATE_PAUSED);
gst_bin_add (GST_BIN_CAST (playbin), combine->combiner);
}
}
GST_PLAY_BIN_SHUTDOWN_UNLOCK (playbin);
if (combine->srcpad == NULL) {
if (combine->combiner) {
/* save source pad of the combiner */
combine->srcpad = gst_element_get_static_pad (combine->combiner, "src");
} else {
/* no combiner, use the pad as the source pad then */
combine->srcpad = gst_object_ref (pad);
}
/* block the combiner srcpad. It's possible that multiple decodebins start
* pushing data into the combiners before we have a chance to collect all
* streams and connect the sinks, resulting in not-linked errors. After we
* configured the sinks we will unblock them all. */
GST_DEBUG_OBJECT (playbin, "blocking %" GST_PTR_FORMAT, combine->srcpad);
combine->block_id =
gst_pad_add_probe (combine->srcpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
block_serialized_data_cb, NULL, NULL);
}
/* get sinkpad for the new stream */
if (combine->combiner) {
if ((sinkpad = gst_element_get_request_pad (combine->combiner, "sink_%u"))) {
GST_DEBUG_OBJECT (playbin, "got pad %s:%s from combiner",
GST_DEBUG_PAD_NAME (sinkpad));
/* find out which properties the sink pad supports */
combine->has_always_ok =
g_object_class_find_property (G_OBJECT_GET_CLASS (sinkpad),
"always-ok") != NULL;
combine->has_tags =
g_object_class_find_property (G_OBJECT_GET_CLASS (sinkpad),
"tags") != NULL;
/* store the combiner for the pad */
g_object_set_data (G_OBJECT (sinkpad), "playbin.combine", combine);
if (combine->has_tags) {
gulong notify_tags_handler = 0;
NotifyTagsData *ntdata;
/* connect to the notify::tags signal for our
* own *-tags-changed signals
*/
ntdata = g_new0 (NotifyTagsData, 1);
ntdata->playbin = playbin;
ntdata->stream_id = combine->channels->len;
ntdata->type = combine->type;
notify_tags_handler =
g_signal_connect_data (G_OBJECT (sinkpad), "notify::tags",
G_CALLBACK (notify_tags_cb), ntdata, (GClosureNotify) g_free,
(GConnectFlags) 0);
g_object_set_data (G_OBJECT (sinkpad), "playbin.notify_tags_handler",
ULONG_TO_POINTER (notify_tags_handler));
}
/* store the pad in the array */
GST_DEBUG_OBJECT (playbin, "pad %p added to array", sinkpad);
g_ptr_array_add (combine->channels, sinkpad);
res = gst_pad_link (pad, sinkpad);
if (GST_PAD_LINK_FAILED (res))
goto link_failed;
/* store combiner pad so we can release it */
g_object_set_data (G_OBJECT (pad), "playbin.sinkpad", sinkpad);
changed = TRUE;
GST_DEBUG_OBJECT (playbin, "linked pad %s:%s to combiner %p",
GST_DEBUG_PAD_NAME (pad), combine->combiner);
} else {
goto request_pad_failed;
}
} else {
/* no combiner, don't configure anything, we'll link the new pad directly to
* the sink. */
changed = FALSE;
sinkpad = NULL;
/* store the combiner for the pad */
g_object_set_data (G_OBJECT (pad), "playbin.combine", combine);
}
GST_SOURCE_GROUP_UNLOCK (group);
group_id_probe_handler =
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
_uridecodebin_event_probe, group, NULL);
g_object_set_data (G_OBJECT (pad), "playbin.event_probe_id",
ULONG_TO_POINTER (group_id_probe_handler));
if (changed) {
int signal;
switch (combine->type) {
case GST_PLAY_SINK_TYPE_VIDEO:
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
signal = SIGNAL_VIDEO_CHANGED;
break;
case GST_PLAY_SINK_TYPE_AUDIO:
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
signal = SIGNAL_AUDIO_CHANGED;
break;
case GST_PLAY_SINK_TYPE_TEXT:
signal = SIGNAL_TEXT_CHANGED;
break;
default:
signal = -1;
}
if (signal >= 0) {
/* we want to return NOT_LINKED for unselected pads but only for pads
* from the normal uridecodebin. This makes sure that subtitle streams
* are not raced past audio/video from decodebin's multiqueue.
* For pads from suburidecodebin OK should always be returned, otherwise
* it will most likely stop. */
if (combine->has_always_ok) {
gboolean always_ok = (decodebin == group->suburidecodebin);
g_object_set (sinkpad, "always-ok", always_ok, NULL);
}
g_signal_emit (G_OBJECT (playbin), gst_play_bin_signals[signal], 0, NULL);
}
}
done:
gst_caps_unref (caps);
return;
/* ERRORS */
unknown_type:
{
GST_ERROR_OBJECT (playbin, "unknown type %s for pad %s:%s",
name, GST_DEBUG_PAD_NAME (pad));
goto done;
}
link_failed:
{
GST_ERROR_OBJECT (playbin,
"failed to link pad %s:%s to combiner, reason %s (%d)",
GST_DEBUG_PAD_NAME (pad), gst_pad_link_get_name (res), res);
GST_SOURCE_GROUP_UNLOCK (group);
goto done;
}
request_pad_failed:
GST_ELEMENT_ERROR (playbin, CORE, PAD,
("Internal playbin error."),
("Failed to get request pad from combiner %p.", combine->combiner));
GST_SOURCE_GROUP_UNLOCK (group);
goto done;
shutdown:
{
GST_DEBUG ("ignoring, we are shutting down. Pad will be left unlinked");
/* not going to done as we didn't request the caps */
return;
}
}
/* called when a pad is removed from the uridecodebin. We unlink the pad from
* the combiner. This will make the combiner select a new pad. */
static void
pad_removed_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
{
GstPlayBin *playbin;
GstPad *peer;
GstElement *combiner;
GstSourceCombine *combine;
int signal = -1;
gulong group_id_probe_handler;
playbin = group->playbin;
GST_DEBUG_OBJECT (playbin,
"pad %s:%s removed from group %p", GST_DEBUG_PAD_NAME (pad), group);
GST_SOURCE_GROUP_LOCK (group);
if ((group_id_probe_handler =
POINTER_TO_ULONG (g_object_get_data (G_OBJECT (pad),
"playbin.event_probe_id")))) {
gst_pad_remove_probe (pad, group_id_probe_handler);
g_object_set_data (G_OBJECT (pad), "playbin.event_probe_id", NULL);
}
if ((combine = g_object_get_data (G_OBJECT (pad), "playbin.combine"))) {
g_assert (combine->combiner == NULL);
g_assert (combine->srcpad == pad);
source_combine_remove_pads (playbin, combine);
goto exit;
}
/* get the combiner sinkpad */
if (!(peer = g_object_get_data (G_OBJECT (pad), "playbin.sinkpad")))
goto not_linked;
/* unlink the pad now (can fail, the pad is unlinked before it's removed) */
gst_pad_unlink (pad, peer);
/* get combiner */
combiner = GST_ELEMENT_CAST (gst_pad_get_parent (peer));
g_assert (combiner != NULL);
if ((combine = g_object_get_data (G_OBJECT (peer), "playbin.combine"))) {
if (combine->has_tags) {
gulong notify_tags_handler;
notify_tags_handler =
POINTER_TO_ULONG (g_object_get_data (G_OBJECT (peer),
"playbin.notify_tags_handler"));
if (notify_tags_handler != 0)
g_signal_handler_disconnect (G_OBJECT (peer), notify_tags_handler);
g_object_set_data (G_OBJECT (peer), "playbin.notify_tags_handler", NULL);
}
/* remove the pad from the array */
g_ptr_array_remove (combine->channels, peer);
GST_DEBUG_OBJECT (playbin, "pad %p removed from array", peer);
/* get the correct type-changed signal */
switch (combine->type) {
case GST_PLAY_SINK_TYPE_VIDEO:
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
signal = SIGNAL_VIDEO_CHANGED;
break;
case GST_PLAY_SINK_TYPE_AUDIO:
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
signal = SIGNAL_AUDIO_CHANGED;
break;
case GST_PLAY_SINK_TYPE_TEXT:
signal = SIGNAL_TEXT_CHANGED;
break;
default:
signal = -1;
}
if (!combine->channels->len && combine->combiner) {
GST_DEBUG_OBJECT (playbin, "all combiner sinkpads removed");
GST_DEBUG_OBJECT (playbin, "removing combiner %p", combine->combiner);
source_combine_remove_pads (playbin, combine);
gst_element_set_state (combine->combiner, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), combine->combiner);
combine->combiner = NULL;
}
}
/* release the pad to the combiner, this will make the combiner choose a new
* pad. */
gst_element_release_request_pad (combiner, peer);
gst_object_unref (peer);
gst_object_unref (combiner);
exit:
GST_SOURCE_GROUP_UNLOCK (group);
if (signal >= 0)
g_signal_emit (G_OBJECT (playbin), gst_play_bin_signals[signal], 0, NULL);
return;
/* ERRORS */
not_linked:
{
GST_DEBUG_OBJECT (playbin, "pad not linked");
goto exit;
}
}
/* we get called when all pads are available and we must connect the sinks to
* them.
* The main purpose of the code is to see if we have video/audio and subtitles
* and pick the right pipelines to display them.
*
* The combiners installed on the group tell us about the presence of
* audio/video and subtitle streams. This allows us to see if we need
* visualisation, video or/and audio.
*/
static void
no_more_pads_cb (GstElement * decodebin, GstSourceGroup * group)
{
GstPlayBin *playbin;
GstPadLinkReturn res;
gint i;
gboolean configure;
playbin = group->playbin;
GST_DEBUG_OBJECT (playbin, "no more pads in group %p", group);
GST_PLAY_BIN_SHUTDOWN_LOCK (playbin, shutdown);
GST_SOURCE_GROUP_LOCK (group);
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
GstSourceCombine *combine = &group->combiner[i];
/* check if the specific media type was detected and thus has a combiner
* created for it. If there is the media type, get a sinkpad from the sink
* and link it. We only do this if we have not yet requested the sinkpad
* before. */
if (combine->srcpad && combine->sinkpad == NULL) {
GST_DEBUG_OBJECT (playbin, "requesting new sink pad %d", combine->type);
combine->sinkpad =
gst_play_sink_request_pad (playbin->playsink, combine->type);
gst_object_ref (combine->sinkpad);
} else if (combine->srcpad && combine->sinkpad) {
GST_DEBUG_OBJECT (playbin, "refreshing new sink pad %d", combine->type);
gst_play_sink_refresh_pad (playbin->playsink, combine->sinkpad,
combine->type);
} else if (combine->sinkpad && combine->srcpad == NULL) {
GST_DEBUG_OBJECT (playbin, "releasing sink pad %d", combine->type);
gst_play_sink_release_pad (playbin->playsink, combine->sinkpad);
gst_object_unref (combine->sinkpad);
combine->sinkpad = NULL;
}
if (combine->sinkpad && combine->srcpad &&
!gst_pad_is_linked (combine->srcpad)) {
res = gst_pad_link (combine->srcpad, combine->sinkpad);
GST_DEBUG_OBJECT (playbin, "linked type %s, result: %d",
combine->media_list[0], res);
if (res != GST_PAD_LINK_OK) {
GST_ELEMENT_ERROR (playbin, CORE, PAD,
("Internal playbin error."),
("Failed to link combiner to sink. Error %d", res));
}
}
}
GST_DEBUG_OBJECT (playbin, "pending %d > %d", group->pending,
group->pending - 1);
if (group->pending > 0)
group->pending--;
if (group->suburidecodebin == decodebin)
group->sub_pending = FALSE;
if (group->pending == 0) {
/* we are the last group to complete, we will configure the output and then
* signal the other waiters. */
GST_LOG_OBJECT (playbin, "last group complete");
configure = TRUE;
} else {
GST_LOG_OBJECT (playbin, "have more pending groups");
configure = FALSE;
}
GST_SOURCE_GROUP_UNLOCK (group);
if (configure) {
/* if we have custom sinks, configure them now */
GST_SOURCE_GROUP_LOCK (group);
if (group->audio_sink) {
GST_INFO_OBJECT (playbin, "setting custom audio sink %" GST_PTR_FORMAT,
group->audio_sink);
gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO,
group->audio_sink);
}
if (group->video_sink) {
GST_INFO_OBJECT (playbin, "setting custom video sink %" GST_PTR_FORMAT,
group->video_sink);
gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO,
group->video_sink);
}
if (group->text_sink) {
GST_INFO_OBJECT (playbin, "setting custom text sink %" GST_PTR_FORMAT,
group->text_sink);
gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_TEXT,
group->text_sink);
}
GST_SOURCE_GROUP_UNLOCK (group);
/* signal the other decodebins that they can continue now. */
GST_SOURCE_GROUP_LOCK (group);
/* unblock all combiners */
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
GstSourceCombine *combine = &group->combiner[i];
if (combine->srcpad) {
GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
combine->srcpad);
if (combine->block_id) {
gst_pad_remove_probe (combine->srcpad, combine->block_id);
combine->block_id = 0;
}
}
}
GST_SOURCE_GROUP_UNLOCK (group);
gst_play_sink_reconfigure (playbin->playsink);
}
GST_PLAY_BIN_SHUTDOWN_UNLOCK (playbin);
if (configure) {
do_async_done (playbin);
}
return;
shutdown:
{
GST_DEBUG ("ignoring, we are shutting down");
/* Request a flushing pad from playsink that we then link to the combiner.
* Then we unblock the combiners so that they stop with a WRONG_STATE
* instead of a NOT_LINKED error.
*/
GST_SOURCE_GROUP_LOCK (group);
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
GstSourceCombine *combine = &group->combiner[i];
if (combine->srcpad) {
if (combine->sinkpad == NULL) {
GST_DEBUG_OBJECT (playbin, "requesting new flushing sink pad");
combine->sinkpad =
gst_play_sink_request_pad (playbin->playsink,
GST_PLAY_SINK_TYPE_FLUSHING);
gst_object_ref (combine->sinkpad);
res = gst_pad_link (combine->srcpad, combine->sinkpad);
GST_DEBUG_OBJECT (playbin, "linked flushing, result: %d", res);
}
GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
combine->srcpad);
if (combine->block_id) {
gst_pad_remove_probe (combine->srcpad, combine->block_id);
combine->block_id = 0;
}
}
}
GST_SOURCE_GROUP_UNLOCK (group);
return;
}
}
static void
drained_cb (GstElement * decodebin, GstSourceGroup * group)
{
GstPlayBin *playbin;
playbin = group->playbin;
GST_DEBUG_OBJECT (playbin, "about to finish in group %p", group);
/* after this call, we should have a next group to activate or we EOS */
g_signal_emit (G_OBJECT (playbin),
gst_play_bin_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
/* now activate the next group. If the app did not set a uri, this will
* fail and we can do EOS */
setup_next_source (playbin, GST_STATE_PAUSED);
}
/* Like gst_element_factory_can_sink_any_caps() but doesn't
* allow ANY caps on the sinkpad template */
static gboolean
_factory_can_sink_caps (GstElementFactory * factory, GstCaps * caps)
{
const GList *templs;
templs = gst_element_factory_get_static_pad_templates (factory);
while (templs) {
GstStaticPadTemplate *templ = (GstStaticPadTemplate *) templs->data;
if (templ->direction == GST_PAD_SINK) {
GstCaps *templcaps = gst_static_caps_get (&templ->static_caps);
if (!gst_caps_is_any (templcaps)
&& gst_caps_is_subset (caps, templcaps)) {
gst_caps_unref (templcaps);
return TRUE;
}
gst_caps_unref (templcaps);
}
templs = g_list_next (templs);
}
return FALSE;
}
static void
avelements_free (gpointer avelement)
{
GstAVElement *elm = (GstAVElement *) avelement;
if (elm->dec)
gst_object_unref (elm->dec);
if (elm->sink)
gst_object_unref (elm->sink);
g_slice_free (GstAVElement, elm);
}
static gint
avelement_compare_decoder (gconstpointer p1, gconstpointer p2,
gpointer user_data)
{
GstAVElement *v1, *v2;
v1 = (GstAVElement *) p1;
v2 = (GstAVElement *) p2;
return strcmp (GST_OBJECT_NAME (v1->dec), GST_OBJECT_NAME (v2->dec));
}
static gint
avelement_lookup_decoder (gconstpointer p1, gconstpointer p2,
gpointer user_data)
{
GstAVElement *v1;
GstElementFactory *f2;
v1 = (GstAVElement *) p1;
f2 = (GstElementFactory *) p2;
return strcmp (GST_OBJECT_NAME (v1->dec), GST_OBJECT_NAME (f2));
}
static gint
avelement_compare (gconstpointer p1, gconstpointer p2)
{
GstAVElement *v1, *v2;
GstPluginFeature *fd1, *fd2, *fs1, *fs2;
gint64 diff, v1_rank, v2_rank;
v1 = (GstAVElement *) p1;
v2 = (GstAVElement *) p2;
fd1 = (GstPluginFeature *) v1->dec;
fd2 = (GstPluginFeature *) v2->dec;
/* If both have a sink, we also compare their ranks */
if (v1->sink && v2->sink) {
fs1 = (GstPluginFeature *) v1->sink;
fs2 = (GstPluginFeature *) v2->sink;
v1_rank =
gst_plugin_feature_get_rank (fd1) * gst_plugin_feature_get_rank (fs1);
v2_rank =
gst_plugin_feature_get_rank (fd2) * gst_plugin_feature_get_rank (fs2);
} else {
v1_rank = gst_plugin_feature_get_rank (fd1);
v2_rank = gst_plugin_feature_get_rank (fd2);
fs1 = fs2 = NULL;
}
/* comparison based on the rank */
diff = v2_rank - v1_rank;
if (diff < 0)
return -1;
else if (diff > 0)
return 1;
/* comparison based on number of common caps features */
diff = v2->n_comm_cf - v1->n_comm_cf;
if (diff != 0)
return diff;
if (fs1 && fs2) {
/* comparison based on the name of sink elements */
diff = strcmp (GST_OBJECT_NAME (fs1), GST_OBJECT_NAME (fs2));
if (diff != 0)
return diff;
}
/* comparison based on the name of decoder elements */
return strcmp (GST_OBJECT_NAME (fd1), GST_OBJECT_NAME (fd2));
}
static GSequence *
avelements_create (GstPlayBin * playbin, gboolean isaudioelement)
{
GstElementFactory *d_factory, *s_factory;
GList *dec_list, *sink_list, *dl, *sl;
GSequence *ave_seq = NULL;
GstAVElement *ave;
guint n_common_cf = 0;
if (isaudioelement) {
sink_list = gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_SINK |
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL);
dec_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECODER
| GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL);
} else {
sink_list = gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_SINK |
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_MARGINAL);
dec_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECODER
| GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_MARGINAL);
}
/* create a list of audio/video elements. Each element in the list
* is holding an audio/video decoder and an audio/video sink in which
* the decoders srcpad template caps and sink element's sinkpad template
* caps are compatible */
dl = dec_list;
sl = sink_list;
ave_seq = g_sequence_new ((GDestroyNotify) avelements_free);
for (; dl; dl = dl->next) {
d_factory = (GstElementFactory *) dl->data;
for (; sl; sl = sl->next) {
s_factory = (GstElementFactory *) sl->data;
n_common_cf =
gst_playback_utils_get_n_common_capsfeatures (d_factory, s_factory,
gst_play_bin_get_flags (playbin), isaudioelement);
if (n_common_cf < 1)
continue;
ave = g_slice_new (GstAVElement);
ave->dec = gst_object_ref (d_factory);
ave->sink = gst_object_ref (s_factory);
ave->n_comm_cf = n_common_cf;
g_sequence_append (ave_seq, ave);
}
sl = sink_list;
}
g_sequence_sort (ave_seq, (GCompareDataFunc) avelement_compare_decoder, NULL);
gst_plugin_feature_list_free (dec_list);
gst_plugin_feature_list_free (sink_list);
return ave_seq;
}
static gboolean
avelement_iter_is_equal (GSequenceIter * iter, GstElementFactory * factory)
{
GstAVElement *ave;
if (!iter)
return FALSE;
ave = g_sequence_get (iter);
if (!ave)
return FALSE;
return strcmp (GST_OBJECT_NAME (ave->dec), GST_OBJECT_NAME (factory)) == 0;
}
static GList *
create_decoders_list (GList * factory_list, GSequence * avelements)
{
GList *dec_list = NULL, *tmp;
GList *ave_list = NULL;
GList *ave_free_list = NULL;
GstAVElement *ave, *best_ave;
g_return_val_if_fail (factory_list != NULL, NULL);
g_return_val_if_fail (avelements != NULL, NULL);
for (tmp = factory_list; tmp; tmp = tmp->next) {
GstElementFactory *factory = (GstElementFactory *) tmp->data;
/* if there are parsers or sink elements, add them first */
if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_PARSER) ||
gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_SINK)) {
dec_list = g_list_prepend (dec_list, gst_object_ref (factory));
} else {
GSequenceIter *seq_iter;
seq_iter =
g_sequence_lookup (avelements, factory,
(GCompareDataFunc) avelement_lookup_decoder, NULL);
if (!seq_iter) {
GstAVElement *ave = g_slice_new0 (GstAVElement);
ave->dec = factory;
ave->sink = NULL;
/* There's at least raw */
ave->n_comm_cf = 1;
ave_list = g_list_prepend (ave_list, ave);
/* We need to free these later */
ave_free_list = g_list_prepend (ave_free_list, ave);
continue;
}
/* Go to first iter with that decoder */
do {
GSequenceIter *tmp_seq_iter;
tmp_seq_iter = g_sequence_iter_prev (seq_iter);
if (!avelement_iter_is_equal (tmp_seq_iter, factory))
break;
seq_iter = tmp_seq_iter;
} while (!g_sequence_iter_is_begin (seq_iter));
/* Get the best ranked GstAVElement for that factory */
best_ave = NULL;
while (!g_sequence_iter_is_end (seq_iter)
&& avelement_iter_is_equal (seq_iter, factory)) {
ave = g_sequence_get (seq_iter);
if (!best_ave || avelement_compare (ave, best_ave) < 0)
best_ave = ave;
seq_iter = g_sequence_iter_next (seq_iter);
}
ave_list = g_list_prepend (ave_list, best_ave);
}
}
/* Sort all GstAVElements by their relative ranks and insert
* into the decoders list */
ave_list = g_list_sort (ave_list, (GCompareFunc) avelement_compare);
for (tmp = ave_list; tmp; tmp = tmp->next) {
ave = (GstAVElement *) tmp->data;
dec_list = g_list_prepend (dec_list, gst_object_ref (ave->dec));
}
g_list_free (ave_list);
gst_plugin_feature_list_free (factory_list);
for (tmp = ave_free_list; tmp; tmp = tmp->next)
g_slice_free (GstAVElement, tmp->data);
g_list_free (ave_free_list);
dec_list = g_list_reverse (dec_list);
return dec_list;
}
/* Called when we must provide a list of factories to plug to @pad with @caps.
* We first check if we have a sink that can handle the format and if we do, we
* return NULL, to expose the pad. If we have no sink (or the sink does not
* work), we return the list of elements that can connect. */
static GValueArray *
autoplug_factories_cb (GstElement * decodebin, GstPad * pad,
GstCaps * caps, GstSourceGroup * group)
{
GstPlayBin *playbin;
GList *factory_list, *tmp;
GValueArray *result;
gboolean unref_caps = FALSE;
gboolean isaudiodeclist = FALSE;
gboolean isvideodeclist = FALSE;
if (!caps) {
caps = gst_caps_new_any ();
unref_caps = TRUE;
}
playbin = group->playbin;
GST_DEBUG_OBJECT (playbin, "factories group %p for %s:%s, %" GST_PTR_FORMAT,
group, GST_DEBUG_PAD_NAME (pad), caps);
/* filter out the elements based on the caps. */
g_mutex_lock (&playbin->elements_lock);
gst_play_bin_update_elements_list (playbin);
factory_list =
gst_element_factory_list_filter (playbin->elements, caps, GST_PAD_SINK,
gst_caps_is_fixed (caps));
g_mutex_unlock (&playbin->elements_lock);
GST_DEBUG_OBJECT (playbin, "found factories %p", factory_list);
GST_PLUGIN_FEATURE_LIST_DEBUG (factory_list);
/* check whether the caps are asking for a list of audio/video decoders */
tmp = factory_list;
if (!gst_caps_is_any (caps)) {
for (; tmp; tmp = tmp->next) {
GstElementFactory *factory = (GstElementFactory *) tmp->data;
isvideodeclist = gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_DECODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE);
isaudiodeclist = gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_DECODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO);
if (isaudiodeclist || isvideodeclist)
break;
}
}
if (isaudiodeclist || isvideodeclist) {
GSequence **ave_list;
if (isaudiodeclist)
ave_list = &playbin->aelements;
else
ave_list = &playbin->velements;
g_mutex_lock (&playbin->elements_lock);
/* sort factory_list based on the GstAVElement list priority */
factory_list = create_decoders_list (factory_list, *ave_list);
g_mutex_unlock (&playbin->elements_lock);
}
/* 2 additional elements for the already set audio/video sinks */
result = g_value_array_new (g_list_length (factory_list) + 2);
/* Check if we already have an audio/video sink and if this is the case
* put it as the first element of the array */
if (group->audio_sink) {
GstElementFactory *factory = gst_element_get_factory (group->audio_sink);
if (factory && _factory_can_sink_caps (factory, caps)) {
GValue val = { 0, };
g_value_init (&val, G_TYPE_OBJECT);
g_value_set_object (&val, factory);
result = g_value_array_append (result, &val);
g_value_unset (&val);
}
}
if (group->video_sink) {
GstElementFactory *factory = gst_element_get_factory (group->video_sink);
if (factory && _factory_can_sink_caps (factory, caps)) {
GValue val = { 0, };
g_value_init (&val, G_TYPE_OBJECT);
g_value_set_object (&val, factory);
result = g_value_array_append (result, &val);
g_value_unset (&val);
}
}
for (tmp = factory_list; tmp; tmp = tmp->next) {
GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
GValue val = { 0, };
if (group->audio_sink && gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_SINK |
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO)) {
continue;
}
if (group->video_sink && gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_SINK | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO
| GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) {
continue;
}
g_value_init (&val, G_TYPE_OBJECT);
g_value_set_object (&val, factory);
g_value_array_append (result, &val);
g_value_unset (&val);
}
gst_plugin_feature_list_free (factory_list);
if (unref_caps)
gst_caps_unref (caps);
return result;
}
static gboolean
gst_play_bin_send_event (GstElement * element, GstEvent * event)
{
GstPlayBin *playbin = GST_PLAY_BIN (element);
/* Send event directly to playsink instead of letting GstBin iterate
* over all sink elements. The latter might send the event multiple times
* in case the SEEK causes a reconfiguration of the pipeline, as can easily
* happen with adaptive streaming demuxers.
*
* What would then happen is that the iterator would be reset, we send the
* event again, and on the second time it will fail in the majority of cases
* because the pipeline is still being reconfigured
*/
if (GST_EVENT_IS_UPSTREAM (event)) {
return gst_element_send_event (GST_ELEMENT_CAST (playbin->playsink), event);
}
return GST_ELEMENT_CLASS (parent_class)->send_event (element, event);
}
static void
gst_play_bin_set_context (GstElement * element, GstContext * context)
{
GstPlayBin *playbin = GST_PLAY_BIN (element);
/* Proxy contexts to the sinks, they might not be in playsink yet */
GST_PLAY_BIN_LOCK (playbin);
if (playbin->audio_sink)
gst_element_set_context (playbin->audio_sink, context);
if (playbin->video_sink)
gst_element_set_context (playbin->video_sink, context);
if (playbin->text_sink)
gst_element_set_context (playbin->text_sink, context);
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->audio_sink)
gst_element_set_context (playbin->curr_group->audio_sink, context);
if (playbin->curr_group->video_sink)
gst_element_set_context (playbin->curr_group->video_sink, context);
if (playbin->curr_group->text_sink)
gst_element_set_context (playbin->curr_group->text_sink, context);
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
GST_PLAY_BIN_UNLOCK (playbin);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
/* Pass sink messages to the application, e.g. NEED_CONTEXT messages */
static void
gst_play_bin_update_context (GstPlayBin * playbin, GstContext * context)
{
GList *l;
const gchar *context_type;
GST_OBJECT_LOCK (playbin);
context_type = gst_context_get_context_type (context);
for (l = playbin->contexts; l; l = l->next) {
GstContext *tmp = l->data;
const gchar *tmp_type = gst_context_get_context_type (tmp);
/* Always store newest context but never replace
* a persistent one by a non-persistent one */
if (strcmp (context_type, tmp_type) == 0 &&
(gst_context_is_persistent (context) ||
!gst_context_is_persistent (tmp))) {
gst_context_replace ((GstContext **) & l->data, context);
break;
}
}
/* Not found? Add */
if (l == NULL)
playbin->contexts =
g_list_prepend (playbin->contexts, gst_context_ref (context));
GST_OBJECT_UNLOCK (playbin);
}
static GstBusSyncReply
activate_sink_bus_handler (GstBus * bus, GstMessage * msg, GstPlayBin * playbin)
{
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
/* Only proxy errors from a fixed sink. If that fails we can just error out
* early as stuff will fail later anyway */
if (playbin->audio_sink
&& gst_object_has_as_ancestor (GST_MESSAGE_SRC (msg),
GST_OBJECT_CAST (playbin->audio_sink)))
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
else if (playbin->video_sink
&& gst_object_has_as_ancestor (GST_MESSAGE_SRC (msg),
GST_OBJECT_CAST (playbin->video_sink)))
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
else if (playbin->text_sink
&& gst_object_has_as_ancestor (GST_MESSAGE_SRC (msg),
GST_OBJECT_CAST (playbin->text_sink)))
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
else
gst_message_unref (msg);
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_NEED_CONTEXT) {
const gchar *context_type;
GList *l;
gst_message_parse_context_type (msg, &context_type);
GST_OBJECT_LOCK (playbin);
for (l = playbin->contexts; l; l = l->next) {
GstContext *tmp = l->data;
const gchar *tmp_type = gst_context_get_context_type (tmp);
if (strcmp (context_type, tmp_type) == 0) {
gst_element_set_context (GST_ELEMENT (GST_MESSAGE_SRC (msg)), l->data);
break;
}
}
GST_OBJECT_UNLOCK (playbin);
/* Forward if we couldn't answer the message */
if (l == NULL) {
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
} else {
gst_message_unref (msg);
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_HAVE_CONTEXT) {
GstContext *context;
gst_message_parse_have_context (msg, &context);
gst_play_bin_update_context (playbin, context);
gst_context_unref (context);
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
} else {
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
}
/* Doesn't really matter, nothing is using this bus */
return GST_BUS_DROP;
}
static gboolean
activate_sink (GstPlayBin * playbin, GstElement * sink, gboolean * activated)
{
GstState state;
GstBus *bus = NULL;
GstStateChangeReturn sret;
gboolean ret = FALSE;
if (activated)
*activated = FALSE;
GST_OBJECT_LOCK (sink);
state = GST_STATE (sink);
GST_OBJECT_UNLOCK (sink);
if (state >= GST_STATE_READY) {
ret = TRUE;
goto done;
}
if (!GST_OBJECT_PARENT (sink)) {
bus = gst_bus_new ();
gst_bus_set_sync_handler (bus,
(GstBusSyncHandler) activate_sink_bus_handler, playbin, NULL);
gst_element_set_bus (sink, bus);
}
sret = gst_element_set_state (sink, GST_STATE_READY);
if (sret == GST_STATE_CHANGE_FAILURE)
goto done;
if (activated)
*activated = TRUE;
ret = TRUE;
done:
if (bus) {
gst_element_set_bus (sink, NULL);
gst_object_unref (bus);
}
return ret;
}
/* autoplug-continue decides, if a pad has raw caps that can be exposed
* directly or if further decoding is necessary. We use this to expose
* supported subtitles directly */
/* FIXME 0.11: Remove the checks for ANY caps, a sink should specify
* explicitly the caps it supports and if it claims to support ANY
* caps it really should support everything */
static gboolean
autoplug_continue_cb (GstElement * element, GstPad * pad, GstCaps * caps,
GstSourceGroup * group)
{
gboolean ret = TRUE;
GstPad *sinkpad = NULL;
gboolean activated_sink;
GST_SOURCE_GROUP_LOCK (group);
if (group->text_sink &&
activate_sink (group->playbin, group->text_sink, &activated_sink)) {
sinkpad = gst_element_get_static_pad (group->text_sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
if (activated_sink)
gst_element_set_state (group->text_sink, GST_STATE_NULL);
} else {
GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps ();
ret = !gst_caps_is_subset (caps, subcaps);
gst_caps_unref (subcaps);
}
/* If autoplugging can stop don't do additional checks */
if (!ret)
goto done;
/* If this is from the subtitle uridecodebin we don't need to
* check the audio and video sink */
if (group->suburidecodebin
&& gst_object_has_as_ancestor (GST_OBJECT_CAST (element),
GST_OBJECT_CAST (group->suburidecodebin)))
goto done;
if (group->audio_sink &&
activate_sink (group->playbin, group->audio_sink, &activated_sink)) {
sinkpad = gst_element_get_static_pad (group->audio_sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
if (activated_sink)
gst_element_set_state (group->audio_sink, GST_STATE_NULL);
}
if (!ret)
goto done;
if (group->video_sink
&& activate_sink (group->playbin, group->video_sink, &activated_sink)) {
sinkpad = gst_element_get_static_pad (group->video_sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
if (activated_sink)
gst_element_set_state (group->video_sink, GST_STATE_NULL);
}
done:
GST_SOURCE_GROUP_UNLOCK (group);
GST_DEBUG_OBJECT (group->playbin,
"continue autoplugging group %p for %s:%s, %" GST_PTR_FORMAT ": %d",
group, GST_DEBUG_PAD_NAME (pad), caps, ret);
return ret;
}
static gboolean
sink_accepts_caps (GstPlayBin * playbin, GstElement * sink, GstCaps * caps)
{
GstPad *sinkpad;
if ((sinkpad = gst_element_get_static_pad (sink, "sink"))) {
/* Got the sink pad, now let's see if the element actually does accept the
* caps that we have */
if (!gst_pad_query_accept_caps (sinkpad, caps)) {
gst_object_unref (sinkpad);
return FALSE;
}
gst_object_unref (sinkpad);
}
return TRUE;
}
/* We are asked to select an element. See if the next element to check
* is a sink. If this is the case, we see if the sink works by setting it to
* READY. If the sink works, we return SELECT_EXPOSE to make decodebin
* expose the raw pad so that we can setup the mixers. */
static GstAutoplugSelectResult
autoplug_select_cb (GstElement * decodebin, GstPad * pad,
GstCaps * caps, GstElementFactory * factory, GstSourceGroup * group)
{
GstPlayBin *playbin;
GstElement *element;
const gchar *klass;
GstPlaySinkType type;
GstElement **sinkp;
GList *ave_list = NULL, *l;
GstAVElement *ave = NULL;
GSequence *ave_seq = NULL;
GSequenceIter *seq_iter;
playbin = group->playbin;
GST_DEBUG_OBJECT (playbin, "select group %p for %s:%s, %" GST_PTR_FORMAT,
group, GST_DEBUG_PAD_NAME (pad), caps);
GST_DEBUG_OBJECT (playbin, "checking factory %s", GST_OBJECT_NAME (factory));
/* if it's not a sink, we make sure the element is compatible with
* the fixed sink */
if (!gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_SINK)) {
gboolean isvideodec = gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_DECODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE);
gboolean isaudiodec = gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_DECODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO);
if (!isvideodec && !isaudiodec)
return GST_AUTOPLUG_SELECT_TRY;
GST_SOURCE_GROUP_LOCK (group);
g_mutex_lock (&playbin->elements_lock);
if (isaudiodec) {
ave_seq = playbin->aelements;
sinkp = &group->audio_sink;
} else {
ave_seq = playbin->velements;
sinkp = &group->video_sink;
}
seq_iter =
g_sequence_lookup (ave_seq, factory,
(GCompareDataFunc) avelement_lookup_decoder, NULL);
if (seq_iter) {
/* Go to first iter with that decoder */
do {
GSequenceIter *tmp_seq_iter;
tmp_seq_iter = g_sequence_iter_prev (seq_iter);
if (!avelement_iter_is_equal (tmp_seq_iter, factory))
break;
seq_iter = tmp_seq_iter;
} while (!g_sequence_iter_is_begin (seq_iter));
while (!g_sequence_iter_is_end (seq_iter)
&& avelement_iter_is_equal (seq_iter, factory)) {
ave = g_sequence_get (seq_iter);
ave_list = g_list_prepend (ave_list, ave);
seq_iter = g_sequence_iter_next (seq_iter);
}
/* Sort all GstAVElements by their relative ranks and insert
* into the decoders list */
ave_list = g_list_sort (ave_list, (GCompareFunc) avelement_compare);
} else {
ave_list = g_list_prepend (ave_list, NULL);
}
/* if it is a decoder and we don't have a fixed sink, then find out
* the matching audio/video sink from GstAVElements list */
for (l = ave_list; l; l = l->next) {
gboolean created_sink = FALSE;
ave = (GstAVElement *) l->data;
if (((isaudiodec && !group->audio_sink) ||
(isvideodec && !group->video_sink))) {
if (ave && ave->sink) {
GST_DEBUG_OBJECT (playbin,
"Trying to create sink '%s' for decoder '%s'",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (ave->sink)),
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
if ((*sinkp = gst_element_factory_create (ave->sink, NULL)) == NULL) {
GST_WARNING_OBJECT (playbin,
"Could not create an element from %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (ave->sink)));
continue;
} else {
if (!activate_sink (playbin, *sinkp, NULL)) {
gst_object_unref (*sinkp);
*sinkp = NULL;
GST_WARNING_OBJECT (playbin,
"Could not activate sink %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (ave->sink)));
continue;
}
gst_object_ref_sink (*sinkp);
created_sink = TRUE;
}
}
}
/* If it is a decoder and we have a fixed sink for the media
* type it outputs, check that the decoder is compatible with this sink */
if ((isaudiodec && group->audio_sink) || (isvideodec
&& group->video_sink)) {
gboolean compatible = FALSE;
GstPad *sinkpad;
GstCaps *caps;
GstElement *sink;
sink = *sinkp;
if ((sinkpad = gst_element_get_static_pad (sink, "sink"))) {
GstPlayFlags flags = gst_play_bin_get_flags (playbin);
GstCaps *raw_caps =
(isaudiodec) ? gst_static_caps_get (&raw_audio_caps) :
gst_static_caps_get (&raw_video_caps);
caps = gst_pad_query_caps (sinkpad, NULL);
/* If the sink supports raw audio/video, we first check
* if the decoder could output any raw audio/video format
* and assume it is compatible with the sink then. We don't
* do a complete compatibility check here if converters
* are plugged between the decoder and the sink because
* the converters will convert between raw formats and
* even if the decoder format is not supported by the decoder
* a converter will convert it.
*
* We assume here that the converters can convert between
* any raw format.
*/
if ((isaudiodec && !(flags & GST_PLAY_FLAG_NATIVE_AUDIO)
&& gst_caps_can_intersect (caps, raw_caps)) || (!isaudiodec
&& !(flags & GST_PLAY_FLAG_NATIVE_VIDEO)
&& gst_caps_can_intersect (caps, raw_caps))) {
compatible =
gst_element_factory_can_src_any_caps (factory, raw_caps)
|| gst_element_factory_can_src_any_caps (factory, caps);
} else {
compatible = gst_element_factory_can_src_any_caps (factory, caps);
}
gst_object_unref (sinkpad);
gst_caps_unref (caps);
}
if (compatible)
break;
GST_DEBUG_OBJECT (playbin, "%s not compatible with the fixed sink",
GST_OBJECT_NAME (factory));
/* If it is not compatible, either continue with the next possible
* sink or if we have a fixed sink, skip the decoder */
if (created_sink) {
gst_element_set_state (*sinkp, GST_STATE_NULL);
gst_object_unref (*sinkp);
*sinkp = NULL;
} else {
g_mutex_unlock (&playbin->elements_lock);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
}
}
g_list_free (ave_list);
g_mutex_unlock (&playbin->elements_lock);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_TRY;
}
/* it's a sink, see if an instance of it actually works */
GST_DEBUG_OBJECT (playbin, "we found a sink '%s'", GST_OBJECT_NAME (factory));
klass =
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS);
/* figure out the klass */
if (strstr (klass, "Audio")) {
GST_DEBUG_OBJECT (playbin, "we found an audio sink");
type = GST_PLAY_SINK_TYPE_AUDIO;
sinkp = &group->audio_sink;
} else if (strstr (klass, "Video")) {
GST_DEBUG_OBJECT (playbin, "we found a video sink");
type = GST_PLAY_SINK_TYPE_VIDEO;
sinkp = &group->video_sink;
} else {
/* unknown klass, skip this element */
GST_WARNING_OBJECT (playbin, "unknown sink klass %s found", klass);
return GST_AUTOPLUG_SELECT_SKIP;
}
/* if we are asked to do visualisations and it's an audio sink, skip the
* element. We can only do visualisations with raw sinks */
if (gst_play_sink_get_flags (playbin->playsink) & GST_PLAY_FLAG_VIS) {
if (type == GST_PLAY_SINK_TYPE_AUDIO) {
GST_DEBUG_OBJECT (playbin, "skip audio sink because of vis");
return GST_AUTOPLUG_SELECT_SKIP;
}
}
/* now see if we already have a sink element */
GST_SOURCE_GROUP_LOCK (group);
if (*sinkp && GST_STATE (*sinkp) >= GST_STATE_READY) {
GstElement *sink = gst_object_ref (*sinkp);
if (sink_accepts_caps (playbin, sink, caps)) {
GST_DEBUG_OBJECT (playbin,
"Existing sink '%s' accepts caps: %" GST_PTR_FORMAT,
GST_ELEMENT_NAME (sink), caps);
gst_object_unref (sink);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_EXPOSE;
} else {
GST_DEBUG_OBJECT (playbin,
"Existing sink '%s' does not accept caps: %" GST_PTR_FORMAT,
GST_ELEMENT_NAME (sink), caps);
gst_object_unref (sink);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
}
GST_DEBUG_OBJECT (playbin, "we have no pending sink, try to create '%s'",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
if ((*sinkp = gst_element_factory_create (factory, NULL)) == NULL) {
GST_WARNING_OBJECT (playbin, "Could not create an element from %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
element = *sinkp;
if (!activate_sink (playbin, element, NULL)) {
GST_WARNING_OBJECT (playbin, "Could not activate sink %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
*sinkp = NULL;
gst_object_unref (element);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
/* Check if the selected sink actually supports the
* caps and can be set to READY*/
if (!sink_accepts_caps (playbin, element, caps)) {
*sinkp = NULL;
gst_element_set_state (element, GST_STATE_NULL);
gst_object_unref (element);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
/* remember the sink in the group now, the element is floating, we take
* ownership now
*
* store the sink in the group, we will configure it later when we
* reconfigure the sink */
GST_DEBUG_OBJECT (playbin, "remember sink");
gst_object_ref_sink (element);
GST_SOURCE_GROUP_UNLOCK (group);
/* tell decodebin to expose the pad because we are going to use this
* sink */
GST_DEBUG_OBJECT (playbin, "we found a working sink, expose pad");
return GST_AUTOPLUG_SELECT_EXPOSE;
}
#define GST_PLAY_BIN_FILTER_CAPS(filter,caps) G_STMT_START { \
if ((filter)) { \
GstCaps *intersection = \
gst_caps_intersect_full ((filter), (caps), GST_CAPS_INTERSECT_FIRST); \
gst_caps_unref ((caps)); \
(caps) = intersection; \
} \
} G_STMT_END
static gboolean
autoplug_query_caps (GstElement * uridecodebin, GstPad * pad,
GstElement * element, GstQuery * query, GstSourceGroup * group)
{
GstCaps *filter, *result = NULL;
GstElement *sink;
GstPad *sinkpad = NULL;
GstElementFactory *factory;
GstElementFactoryListType factory_type;
gboolean have_sink = FALSE;
GST_SOURCE_GROUP_LOCK (group);
gst_query_parse_caps (query, &filter);
factory = gst_element_get_factory (element);
if (!factory)
goto done;
if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) {
factory_type =
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE;
/* If this is from the subtitle uridecodebin we don't need to
* check the audio and video sink */
if (group->suburidecodebin
&& gst_object_has_as_ancestor (GST_OBJECT_CAST (pad),
GST_OBJECT_CAST (group->suburidecodebin))) {
goto done;
}
if ((sink = group->video_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, filter);
if (!gst_caps_is_any (sinkcaps)) {
if (!result)
result = sinkcaps;
else
result = gst_caps_merge (result, sinkcaps);
} else {
gst_caps_unref (sinkcaps);
}
gst_object_unref (sinkpad);
}
have_sink = TRUE;
}
} else if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO)) {
factory_type = GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO;
/* If this is from the subtitle uridecodebin we don't need to
* check the audio and video sink */
if (group->suburidecodebin
&& gst_object_has_as_ancestor (GST_OBJECT_CAST (pad),
GST_OBJECT_CAST (group->suburidecodebin))) {
goto done;
}
if ((sink = group->audio_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, filter);
if (!gst_caps_is_any (sinkcaps)) {
if (!result)
result = sinkcaps;
else
result = gst_caps_merge (result, sinkcaps);
} else {
gst_caps_unref (sinkcaps);
}
gst_object_unref (sinkpad);
}
have_sink = TRUE;
}
} else if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE)) {
factory_type = GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE;
if ((sink = group->playbin->text_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, filter);
if (!gst_caps_is_any (sinkcaps)) {
if (!result)
result = sinkcaps;
else
result = gst_caps_merge (result, sinkcaps);
} else {
gst_caps_unref (sinkcaps);
}
gst_object_unref (sinkpad);
}
have_sink = TRUE;
} else {
GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps ();
GST_PLAY_BIN_FILTER_CAPS (filter, subcaps);
if (!result)
result = subcaps;
else
result = gst_caps_merge (result, subcaps);
}
} else {
goto done;
}
if (!have_sink) {
GValueArray *factories;
gint i, n;
factories = autoplug_factories_cb (uridecodebin, pad, NULL, group);
n = factories->n_values;
for (i = 0; i < n; i++) {
GValue *v = g_value_array_get_nth (factories, i);
GstElementFactory *f = g_value_get_object (v);
const GList *templates;
const GList *l;
GstCaps *templ_caps;
if (!gst_element_factory_list_is_type (f, factory_type))
continue;
templates = gst_element_factory_get_static_pad_templates (f);
for (l = templates; l; l = l->next) {
templ_caps = gst_static_pad_template_get_caps (l->data);
if (!gst_caps_is_any (templ_caps)) {
GST_PLAY_BIN_FILTER_CAPS (filter, templ_caps);
if (!result)
result = templ_caps;
else
result = gst_caps_merge (result, templ_caps);
} else {
gst_caps_unref (templ_caps);
}
}
}
g_value_array_free (factories);
}
done:
GST_SOURCE_GROUP_UNLOCK (group);
if (!result)
return FALSE;
/* Add the actual decoder/parser/etc caps at the very end to
* make sure we don't cause empty caps to be returned, e.g.
* if a parser asks us but a decoder is required after it
* because no sink can handle the format directly.
*/
{
GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target) {
GstCaps *target_caps = gst_pad_get_pad_template_caps (target);
GST_PLAY_BIN_FILTER_CAPS (filter, target_caps);
result = gst_caps_merge (result, target_caps);
gst_object_unref (target);
}
}
gst_query_set_caps_result (query, result);
gst_caps_unref (result);
return TRUE;
}
static gboolean
autoplug_query_context (GstElement * uridecodebin, GstPad * pad,
GstElement * element, GstQuery * query, GstSourceGroup * group)
{
GstElement *sink;
GstPad *sinkpad = NULL;
GstElementFactory *factory;
gboolean res = FALSE;
GST_SOURCE_GROUP_LOCK (group);
factory = gst_element_get_factory (element);
if (!factory)
goto done;
if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) {
/* If this is from the subtitle uridecodebin we don't need to
* check the audio and video sink */
if (group->suburidecodebin
&& gst_object_has_as_ancestor (GST_OBJECT_CAST (pad),
GST_OBJECT_CAST (group->suburidecodebin))) {
goto done;
}
if ((sink = group->video_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
res = gst_pad_query (sinkpad, query);
gst_object_unref (sinkpad);
}
}
} else if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO)) {
/* If this is from the subtitle uridecodebin we don't need to
* check the audio and video sink */
if (group->suburidecodebin
&& gst_object_has_as_ancestor (GST_OBJECT_CAST (pad),
GST_OBJECT_CAST (group->suburidecodebin))) {
goto done;
}
if ((sink = group->audio_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
res = gst_pad_query (sinkpad, query);
gst_object_unref (sinkpad);
}
}
} else if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE)) {
if ((sink = group->playbin->text_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
res = gst_pad_query (sinkpad, query);
gst_object_unref (sinkpad);
}
}
} else {
goto done;
}
done:
GST_SOURCE_GROUP_UNLOCK (group);
return res;
}
static gboolean
autoplug_query_cb (GstElement * uridecodebin, GstPad * pad,
GstElement * element, GstQuery * query, GstSourceGroup * group)
{
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
return autoplug_query_caps (uridecodebin, pad, element, query, group);
case GST_QUERY_CONTEXT:
return autoplug_query_context (uridecodebin, pad, element, query, group);
default:
return FALSE;
}
}
static void
notify_source_cb (GstElement * uridecodebin, GParamSpec * pspec,
GstSourceGroup * group)
{
GstPlayBin *playbin;
GstElement *source;
playbin = group->playbin;
g_object_get (group->uridecodebin, "source", &source, NULL);
GST_OBJECT_LOCK (playbin);
if (playbin->source)
gst_object_unref (playbin->source);
playbin->source = source;
GST_OBJECT_UNLOCK (playbin);
g_object_notify (G_OBJECT (playbin), "source");
g_signal_emit (playbin, gst_play_bin_signals[SIGNAL_SOURCE_SETUP],
0, playbin->source);
}
/* must be called with the group lock */
static gboolean
group_set_locked_state_unlocked (GstPlayBin * playbin, GstSourceGroup * group,
gboolean locked)
{
GST_DEBUG_OBJECT (playbin, "locked_state %d on group %p", locked, group);
if (group->uridecodebin)
gst_element_set_locked_state (group->uridecodebin, locked);
if (group->suburidecodebin)
gst_element_set_locked_state (group->suburidecodebin, locked);
return TRUE;
}
/* must be called with PLAY_BIN_LOCK */
static GstStateChangeReturn
activate_group (GstPlayBin * playbin, GstSourceGroup * group, GstState target)
{
GstElement *uridecodebin = NULL;
GstElement *suburidecodebin = NULL;
GstPlayFlags flags;
gboolean audio_sink_activated = FALSE;
gboolean video_sink_activated = FALSE;
gboolean text_sink_activated = FALSE;
GstStateChangeReturn state_ret;
g_return_val_if_fail (group->valid, GST_STATE_CHANGE_FAILURE);
g_return_val_if_fail (!group->active, GST_STATE_CHANGE_FAILURE);
GST_DEBUG_OBJECT (playbin, "activating group %p", group);
GST_SOURCE_GROUP_LOCK (group);
/* First set up the custom sources */
if (playbin->audio_sink)
group->audio_sink = gst_object_ref (playbin->audio_sink);
else
group->audio_sink =
gst_play_sink_get_sink (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO);
if (group->audio_sink) {
if (!activate_sink (playbin, group->audio_sink, &audio_sink_activated)) {
if (group->audio_sink == playbin->audio_sink) {
goto sink_failure;
} else {
gst_object_unref (group->audio_sink);
group->audio_sink = NULL;
}
}
}
if (playbin->video_sink)
group->video_sink = gst_object_ref (playbin->video_sink);
else
group->video_sink =
gst_play_sink_get_sink (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO);
if (group->video_sink) {
if (!activate_sink (playbin, group->video_sink, &video_sink_activated)) {
if (group->video_sink == playbin->video_sink) {
goto sink_failure;
} else {
gst_object_unref (group->video_sink);
group->video_sink = NULL;
}
}
}
if (playbin->text_sink)
group->text_sink = gst_object_ref (playbin->text_sink);
else
group->text_sink =
gst_play_sink_get_sink (playbin->playsink, GST_PLAY_SINK_TYPE_TEXT);
if (group->text_sink) {
if (!activate_sink (playbin, group->text_sink, &text_sink_activated)) {
if (group->text_sink == playbin->text_sink) {
goto sink_failure;
} else {
gst_object_unref (group->text_sink);
group->text_sink = NULL;
}
}
}
g_slist_free (group->suburi_flushes_to_drop);
group->suburi_flushes_to_drop = NULL;
if (!group->suburi_flushes_to_drop_lock.p)
g_mutex_init (&group->suburi_flushes_to_drop_lock);
if (group->uridecodebin) {
GST_DEBUG_OBJECT (playbin, "reusing existing uridecodebin");
uridecodebin = group->uridecodebin;
gst_element_set_state (uridecodebin, GST_STATE_READY);
/* no need to take extra ref, we already have one
* and the bin will add one since it is no longer floating,
* as it was at least added once before (below) */
gst_bin_add (GST_BIN_CAST (playbin), uridecodebin);
} else {
GST_DEBUG_OBJECT (playbin, "making new uridecodebin");
uridecodebin = gst_element_factory_make ("uridecodebin", NULL);
if (!uridecodebin)
goto no_decodebin;
gst_bin_add (GST_BIN_CAST (playbin), uridecodebin);
group->uridecodebin = gst_object_ref (uridecodebin);
}
flags = gst_play_sink_get_flags (playbin->playsink);
g_object_set (uridecodebin,
/* configure connection speed */
"connection-speed", playbin->connection_speed / 1000,
/* configure uri */
"uri", group->uri,
/* configure download buffering */
"download", ((flags & GST_PLAY_FLAG_DOWNLOAD) != 0),
/* configure buffering of demuxed/parsed data */
"use-buffering", ((flags & GST_PLAY_FLAG_BUFFERING) != 0),
/* configure buffering parameters */
"buffer-duration", playbin->buffer_duration,
"buffer-size", playbin->buffer_size,
"ring-buffer-max-size", playbin->ring_buffer_max_size, NULL);
/* connect pads and other things */
group->pad_added_id = g_signal_connect (uridecodebin, "pad-added",
G_CALLBACK (pad_added_cb), group);
group->pad_removed_id = g_signal_connect (uridecodebin, "pad-removed",
G_CALLBACK (pad_removed_cb), group);
group->no_more_pads_id = g_signal_connect (uridecodebin, "no-more-pads",
G_CALLBACK (no_more_pads_cb), group);
group->notify_source_id = g_signal_connect (uridecodebin, "notify::source",
G_CALLBACK (notify_source_cb), group);
/* we have 1 pending no-more-pads */
group->pending = 1;
/* is called when the uridecodebin is out of data and we can switch to the
* next uri */
group->drained_id =
g_signal_connect (uridecodebin, "drained", G_CALLBACK (drained_cb),
group);
/* will be called when a new media type is found. We return a list of decoders
* including sinks for decodebin to try */
group->autoplug_factories_id =
g_signal_connect (uridecodebin, "autoplug-factories",
G_CALLBACK (autoplug_factories_cb), group);
group->autoplug_select_id =
g_signal_connect (uridecodebin, "autoplug-select",
G_CALLBACK (autoplug_select_cb), group);
group->autoplug_continue_id =
g_signal_connect (uridecodebin, "autoplug-continue",
G_CALLBACK (autoplug_continue_cb), group);
group->autoplug_query_id =
g_signal_connect (uridecodebin, "autoplug-query",
G_CALLBACK (autoplug_query_cb), group);
if (group->suburi) {
/* subtitles */
if (group->suburidecodebin) {
GST_DEBUG_OBJECT (playbin, "reusing existing suburidecodebin");
suburidecodebin = group->suburidecodebin;
gst_element_set_state (suburidecodebin, GST_STATE_READY);
/* no need to take extra ref, we already have one
* and the bin will add one since it is no longer floating,
* as it was at least added once before (below) */
gst_bin_add (GST_BIN_CAST (playbin), suburidecodebin);
} else {
GST_DEBUG_OBJECT (playbin, "making new suburidecodebin");
suburidecodebin = gst_element_factory_make ("uridecodebin", NULL);
if (!suburidecodebin)
goto no_decodebin;
gst_bin_add (GST_BIN_CAST (playbin), suburidecodebin);
group->suburidecodebin = gst_object_ref (suburidecodebin);
}
g_object_set (suburidecodebin,
/* configure connection speed */
"connection-speed", playbin->connection_speed,
/* configure uri */
"uri", group->suburi, NULL);
/* connect pads and other things */
group->sub_pad_added_id = g_signal_connect (suburidecodebin, "pad-added",
G_CALLBACK (pad_added_cb), group);
group->sub_pad_removed_id = g_signal_connect (suburidecodebin,
"pad-removed", G_CALLBACK (pad_removed_cb), group);
group->sub_no_more_pads_id = g_signal_connect (suburidecodebin,
"no-more-pads", G_CALLBACK (no_more_pads_cb), group);
group->sub_autoplug_continue_id =
g_signal_connect (suburidecodebin, "autoplug-continue",
G_CALLBACK (autoplug_continue_cb), group);
group->sub_autoplug_query_id =
g_signal_connect (suburidecodebin, "autoplug-query",
G_CALLBACK (autoplug_query_cb), group);
/* we have 2 pending no-more-pads */
group->pending = 2;
group->sub_pending = TRUE;
} else {
group->sub_pending = FALSE;
}
/* release the group lock before setting the state of the decodebins, they
* might fire signals in this thread that we need to handle with the
* group_lock taken. */
GST_SOURCE_GROUP_UNLOCK (group);
if (suburidecodebin) {
if (gst_element_set_state (suburidecodebin,
target) == GST_STATE_CHANGE_FAILURE) {
GST_DEBUG_OBJECT (playbin,
"failed state change of subtitle uridecodebin");
GST_SOURCE_GROUP_LOCK (group);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_query_id);
/* Might already be removed because of an error message */
if (GST_OBJECT_PARENT (suburidecodebin) == GST_OBJECT_CAST (playbin))
gst_bin_remove (GST_BIN_CAST (playbin), suburidecodebin);
if (group->sub_pending) {
group->pending--;
group->sub_pending = FALSE;
}
gst_element_set_state (suburidecodebin, GST_STATE_READY);
g_free (group->suburi);
group->suburi = NULL;
GST_SOURCE_GROUP_UNLOCK (group);
}
}
if ((state_ret =
gst_element_set_state (uridecodebin,
target)) == GST_STATE_CHANGE_FAILURE)
goto uridecodebin_failure;
GST_SOURCE_GROUP_LOCK (group);
/* allow state changes of the playbin affect the group elements now */
group_set_locked_state_unlocked (playbin, group, FALSE);
group->active = TRUE;
GST_SOURCE_GROUP_UNLOCK (group);
return state_ret;
/* ERRORS */
no_decodebin:
{
GstMessage *msg;
GST_SOURCE_GROUP_UNLOCK (group);
msg =
gst_missing_element_message_new (GST_ELEMENT_CAST (playbin),
"uridecodebin");
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
GST_ELEMENT_ERROR (playbin, CORE, MISSING_PLUGIN,
(_("Could not create \"uridecodebin\" element.")), (NULL));
GST_SOURCE_GROUP_LOCK (group);
goto error_cleanup;
}
uridecodebin_failure:
{
GST_DEBUG_OBJECT (playbin, "failed state change of uridecodebin");
GST_SOURCE_GROUP_LOCK (group);
goto error_cleanup;
}
sink_failure:
{
GST_ERROR_OBJECT (playbin, "failed to activate sinks");
goto error_cleanup;
}
error_cleanup:
{
/* delete any custom sinks we might have */
if (group->audio_sink) {
/* If this is a automatically created sink set it to NULL */
if (audio_sink_activated)
gst_element_set_state (group->audio_sink, GST_STATE_NULL);
gst_object_unref (group->audio_sink);
}
group->audio_sink = NULL;
if (group->video_sink) {
/* If this is a automatically created sink set it to NULL */
if (video_sink_activated)
gst_element_set_state (group->video_sink, GST_STATE_NULL);
gst_object_unref (group->video_sink);
}
group->video_sink = NULL;
if (group->text_sink) {
/* If this is a automatically created sink set it to NULL */
if (text_sink_activated)
gst_element_set_state (group->text_sink, GST_STATE_NULL);
gst_object_unref (group->text_sink);
}
group->text_sink = NULL;
if (uridecodebin) {
REMOVE_SIGNAL (group->uridecodebin, group->pad_added_id);
REMOVE_SIGNAL (group->uridecodebin, group->pad_removed_id);
REMOVE_SIGNAL (group->uridecodebin, group->no_more_pads_id);
REMOVE_SIGNAL (group->uridecodebin, group->notify_source_id);
REMOVE_SIGNAL (group->uridecodebin, group->drained_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_factories_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_select_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_continue_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_query_id);
gst_element_set_state (uridecodebin, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), uridecodebin);
}
GST_SOURCE_GROUP_UNLOCK (group);
return GST_STATE_CHANGE_FAILURE;
}
}
/* unlink a group of uridecodebins from the sink.
* must be called with PLAY_BIN_LOCK */
static gboolean
deactivate_group (GstPlayBin * playbin, GstSourceGroup * group)
{
gint i;
g_return_val_if_fail (group->active, FALSE);
g_return_val_if_fail (group->valid, FALSE);
GST_DEBUG_OBJECT (playbin, "unlinking group %p", group);
GST_SOURCE_GROUP_LOCK (group);
group->active = FALSE;
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
GstSourceCombine *combine = &group->combiner[i];
GST_DEBUG_OBJECT (playbin, "unlinking combiner %s", combine->media_list[0]);
if (combine->srcpad) {
source_combine_remove_pads (playbin, combine);
}
if (combine->combiner) {
gint n;
/* release and unref requests pad from the combiner */
for (n = 0; n < combine->channels->len; n++) {
GstPad *sinkpad = g_ptr_array_index (combine->channels, n);
gst_element_release_request_pad (combine->combiner, sinkpad);
gst_object_unref (sinkpad);
}
g_ptr_array_set_size (combine->channels, 0);
gst_element_set_state (combine->combiner, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), combine->combiner);
combine->combiner = NULL;
}
}
/* delete any custom sinks we might have.
* conditionally set them to null if they aren't inside playsink yet */
if (group->audio_sink) {
if (!gst_object_has_as_ancestor (GST_OBJECT_CAST (group->audio_sink),
GST_OBJECT_CAST (playbin->playsink))) {
gst_element_set_state (group->audio_sink, GST_STATE_NULL);
}
gst_object_unref (group->audio_sink);
}
group->audio_sink = NULL;
if (group->video_sink) {
if (!gst_object_has_as_ancestor (GST_OBJECT_CAST (group->video_sink),
GST_OBJECT_CAST (playbin->playsink))) {
gst_element_set_state (group->video_sink, GST_STATE_NULL);
}
gst_object_unref (group->video_sink);
}
group->video_sink = NULL;
if (group->text_sink) {
if (!gst_object_has_as_ancestor (GST_OBJECT_CAST (group->text_sink),
GST_OBJECT_CAST (playbin->playsink))) {
gst_element_set_state (group->text_sink, GST_STATE_NULL);
}
gst_object_unref (group->text_sink);
}
group->text_sink = NULL;
if (group->uridecodebin) {
REMOVE_SIGNAL (group->uridecodebin, group->pad_added_id);
REMOVE_SIGNAL (group->uridecodebin, group->pad_removed_id);
REMOVE_SIGNAL (group->uridecodebin, group->no_more_pads_id);
REMOVE_SIGNAL (group->uridecodebin, group->notify_source_id);
REMOVE_SIGNAL (group->uridecodebin, group->drained_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_factories_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_select_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_continue_id);
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_query_id);
gst_bin_remove (GST_BIN_CAST (playbin), group->uridecodebin);
}
if (group->suburidecodebin) {
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_query_id);
/* Might already be removed because of errors */
if (GST_OBJECT_PARENT (group->suburidecodebin) == GST_OBJECT_CAST (playbin))
gst_bin_remove (GST_BIN_CAST (playbin), group->suburidecodebin);
}
group->have_group_id = FALSE;
GST_SOURCE_GROUP_UNLOCK (group);
return TRUE;
}
/* setup the next group to play, this assumes the next_group is valid and
* configured. It swaps out the current_group and activates the valid
* next_group. */
static GstStateChangeReturn
setup_next_source (GstPlayBin * playbin, GstState target)
{
GstSourceGroup *new_group, *old_group;
GstStateChangeReturn state_ret;
GST_DEBUG_OBJECT (playbin, "setup sources");
/* see if there is a next group */
GST_PLAY_BIN_LOCK (playbin);
new_group = playbin->next_group;
if (!new_group || !new_group->valid)
goto no_next_group;
/* first unlink the current source, if any */
old_group = playbin->curr_group;
if (old_group && old_group->valid && old_group->active) {
new_group->stream_changed_pending = TRUE;
gst_play_bin_update_cached_duration (playbin);
/* unlink our pads with the sink */
deactivate_group (playbin, old_group);
old_group->valid = FALSE;
}
/* swap old and new */
playbin->curr_group = new_group;
playbin->next_group = old_group;
/* activate the new group */
if ((state_ret =
activate_group (playbin, new_group,
target)) == GST_STATE_CHANGE_FAILURE)
goto activate_failed;
GST_PLAY_BIN_UNLOCK (playbin);
return state_ret;
/* ERRORS */
no_next_group:
{
GST_DEBUG_OBJECT (playbin, "no next group");
if (target == GST_STATE_READY && new_group && new_group->uri == NULL)
GST_ELEMENT_ERROR (playbin, RESOURCE, NOT_FOUND, ("No URI set"), (NULL));
GST_PLAY_BIN_UNLOCK (playbin);
return GST_STATE_CHANGE_FAILURE;
}
activate_failed:
{
new_group->stream_changed_pending = FALSE;
GST_DEBUG_OBJECT (playbin, "activate failed");
new_group->valid = FALSE;
GST_PLAY_BIN_UNLOCK (playbin);
return GST_STATE_CHANGE_FAILURE;
}
}
/* The group that is currently playing is copied again to the
* next_group so that it will start playing the next time.
*/
static gboolean
save_current_group (GstPlayBin * playbin)
{
GstSourceGroup *curr_group;
GST_DEBUG_OBJECT (playbin, "save current group");
/* see if there is a current group */
GST_PLAY_BIN_LOCK (playbin);
curr_group = playbin->curr_group;
if (curr_group && curr_group->valid && curr_group->active) {
/* unlink our pads with the sink */
deactivate_group (playbin, curr_group);
}
/* swap old and new */
playbin->curr_group = playbin->next_group;
playbin->next_group = curr_group;
GST_PLAY_BIN_UNLOCK (playbin);
return TRUE;
}
/* clear the locked state from all groups. This function is called before a
* state change to NULL is performed on them. */
static gboolean
groups_set_locked_state (GstPlayBin * playbin, gboolean locked)
{
GST_DEBUG_OBJECT (playbin, "setting locked state to %d on all groups",
locked);
GST_PLAY_BIN_LOCK (playbin);
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
group_set_locked_state_unlocked (playbin, playbin->curr_group, locked);
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
GST_SOURCE_GROUP_LOCK (playbin->next_group);
group_set_locked_state_unlocked (playbin, playbin->next_group, locked);
GST_SOURCE_GROUP_UNLOCK (playbin->next_group);
GST_PLAY_BIN_UNLOCK (playbin);
return TRUE;
}
static GstStateChangeReturn
gst_play_bin_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstPlayBin *playbin;
gboolean do_save = FALSE;
playbin = GST_PLAY_BIN (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
memset (&playbin->duration, 0, sizeof (playbin->duration));
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_LOG_OBJECT (playbin, "clearing shutdown flag");
memset (&playbin->duration, 0, sizeof (playbin->duration));
g_atomic_int_set (&playbin->shutdown, 0);
do_async_start (playbin);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
async_down:
/* FIXME unlock our waiting groups */
GST_LOG_OBJECT (playbin, "setting shutdown flag");
g_atomic_int_set (&playbin->shutdown, 1);
memset (&playbin->duration, 0, sizeof (playbin->duration));
/* wait for all callbacks to end by taking the lock.
* No dynamic (critical) new callbacks will
* be able to happen as we set the shutdown flag. */
GST_PLAY_BIN_DYN_LOCK (playbin);
GST_LOG_OBJECT (playbin, "dynamic lock taken, we can continue shutdown");
GST_PLAY_BIN_DYN_UNLOCK (playbin);
if (!do_save)
break;
case GST_STATE_CHANGE_READY_TO_NULL:
/* we go async to PAUSED, so if that fails, we never make it to PAUSED
* and no state change PAUSED to READY passes here,
* though it is a nice-to-have ... */
if (!g_atomic_int_get (&playbin->shutdown)) {
do_save = TRUE;
goto async_down;
}
memset (&playbin->duration, 0, sizeof (playbin->duration));
/* unlock so that all groups go to NULL */
groups_set_locked_state (playbin, FALSE);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
goto failure;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if ((ret =
setup_next_source (playbin,
GST_STATE_PAUSED)) == GST_STATE_CHANGE_FAILURE)
goto failure;
if (ret == GST_STATE_CHANGE_SUCCESS)
ret = GST_STATE_CHANGE_ASYNC;
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
do_async_done (playbin);
/* FIXME Release audio device when we implement that */
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
save_current_group (playbin);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
{
guint i;
GList *l;
/* also do missed state change down to READY */
if (do_save)
save_current_group (playbin);
/* Deactive the groups, set the uridecodebins to NULL
* and unref them.
*/
for (i = 0; i < 2; i++) {
if (playbin->groups[i].active && playbin->groups[i].valid) {
deactivate_group (playbin, &playbin->groups[i]);
playbin->groups[i].valid = FALSE;
}
if (playbin->groups[i].uridecodebin) {
gst_element_set_state (playbin->groups[i].uridecodebin,
GST_STATE_NULL);
gst_object_unref (playbin->groups[i].uridecodebin);
playbin->groups[i].uridecodebin = NULL;
}
if (playbin->groups[i].suburidecodebin) {
gst_element_set_state (playbin->groups[i].suburidecodebin,
GST_STATE_NULL);
gst_object_unref (playbin->groups[i].suburidecodebin);
playbin->groups[i].suburidecodebin = NULL;
}
}
/* Set our sinks back to NULL, they might not be child of playbin */
if (playbin->audio_sink)
gst_element_set_state (playbin->audio_sink, GST_STATE_NULL);
if (playbin->video_sink)
gst_element_set_state (playbin->video_sink, GST_STATE_NULL);
if (playbin->text_sink)
gst_element_set_state (playbin->text_sink, GST_STATE_NULL);
if (playbin->video_stream_combiner)
gst_element_set_state (playbin->video_stream_combiner, GST_STATE_NULL);
if (playbin->audio_stream_combiner)
gst_element_set_state (playbin->audio_stream_combiner, GST_STATE_NULL);
if (playbin->text_stream_combiner)
gst_element_set_state (playbin->text_stream_combiner, GST_STATE_NULL);
/* make sure the groups don't perform a state change anymore until we
* enable them again */
groups_set_locked_state (playbin, TRUE);
/* Remove all non-persistent contexts */
GST_OBJECT_LOCK (playbin);
for (l = playbin->contexts; l;) {
GstContext *context = l->data;
if (!gst_context_is_persistent (context)) {
GList *next;
gst_context_unref (context);
next = l->next;
playbin->contexts = g_list_delete_link (playbin->contexts, l);
l = next;
} else {
l = l->next;
}
}
if (playbin->source) {
gst_object_unref (playbin->source);
playbin->source = NULL;
}
GST_OBJECT_UNLOCK (playbin);
break;
}
default:
break;
}
if (ret == GST_STATE_CHANGE_NO_PREROLL)
do_async_done (playbin);
return ret;
/* ERRORS */
failure:
{
do_async_done (playbin);
if (transition == GST_STATE_CHANGE_READY_TO_PAUSED) {
GstSourceGroup *curr_group;
curr_group = playbin->curr_group;
if (curr_group) {
if (curr_group->active && curr_group->valid) {
/* unlink our pads with the sink */
deactivate_group (playbin, curr_group);
}
curr_group->valid = FALSE;
}
/* Swap current and next group back */
playbin->curr_group = playbin->next_group;
playbin->next_group = curr_group;
}
return ret;
}
}
static void
gst_play_bin_overlay_expose (GstVideoOverlay * overlay)
{
GstPlayBin *playbin = GST_PLAY_BIN (overlay);
gst_video_overlay_expose (GST_VIDEO_OVERLAY (playbin->playsink));
}
static void
gst_play_bin_overlay_handle_events (GstVideoOverlay * overlay,
gboolean handle_events)
{
GstPlayBin *playbin = GST_PLAY_BIN (overlay);
gst_video_overlay_handle_events (GST_VIDEO_OVERLAY (playbin->playsink),
handle_events);
}
static void
gst_play_bin_overlay_set_render_rectangle (GstVideoOverlay * overlay, gint x,
gint y, gint width, gint height)
{
GstPlayBin *playbin = GST_PLAY_BIN (overlay);
gst_video_overlay_set_render_rectangle (GST_VIDEO_OVERLAY (playbin->playsink),
x, y, width, height);
}
static void
gst_play_bin_overlay_set_window_handle (GstVideoOverlay * overlay,
guintptr handle)
{
GstPlayBin *playbin = GST_PLAY_BIN (overlay);
gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (playbin->playsink),
handle);
}
static void
gst_play_bin_overlay_init (gpointer g_iface, gpointer g_iface_data)
{
GstVideoOverlayInterface *iface = (GstVideoOverlayInterface *) g_iface;
iface->expose = gst_play_bin_overlay_expose;
iface->handle_events = gst_play_bin_overlay_handle_events;
iface->set_render_rectangle = gst_play_bin_overlay_set_render_rectangle;
iface->set_window_handle = gst_play_bin_overlay_set_window_handle;
}
static void
gst_play_bin_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstPlayBin *playbin = GST_PLAY_BIN (navigation);
gst_navigation_send_event (GST_NAVIGATION (playbin->playsink), structure);
}
static void
gst_play_bin_navigation_init (gpointer g_iface, gpointer g_iface_data)
{
GstNavigationInterface *iface = (GstNavigationInterface *) g_iface;
iface->send_event = gst_play_bin_navigation_send_event;
}
static const GList *
gst_play_bin_colorbalance_list_channels (GstColorBalance * balance)
{
GstPlayBin *playbin = GST_PLAY_BIN (balance);
return
gst_color_balance_list_channels (GST_COLOR_BALANCE (playbin->playsink));
}
static void
gst_play_bin_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value)
{
GstPlayBin *playbin = GST_PLAY_BIN (balance);
gst_color_balance_set_value (GST_COLOR_BALANCE (playbin->playsink), channel,
value);
}
static gint
gst_play_bin_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel)
{
GstPlayBin *playbin = GST_PLAY_BIN (balance);
return gst_color_balance_get_value (GST_COLOR_BALANCE (playbin->playsink),
channel);
}
static GstColorBalanceType
gst_play_bin_colorbalance_get_balance_type (GstColorBalance * balance)
{
GstPlayBin *playbin = GST_PLAY_BIN (balance);
return
gst_color_balance_get_balance_type (GST_COLOR_BALANCE
(playbin->playsink));
}
static void
gst_play_bin_colorbalance_init (gpointer g_iface, gpointer g_iface_data)
{
GstColorBalanceInterface *iface = (GstColorBalanceInterface *) g_iface;
iface->list_channels = gst_play_bin_colorbalance_list_channels;
iface->set_value = gst_play_bin_colorbalance_set_value;
iface->get_value = gst_play_bin_colorbalance_get_value;
iface->get_balance_type = gst_play_bin_colorbalance_get_balance_type;
}
gboolean
gst_play_bin2_plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_play_bin_debug, "playbin", 0, "play bin");
return gst_element_register (plugin, "playbin", GST_RANK_NONE,
GST_TYPE_PLAY_BIN);
}
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