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gstreamer/gst/playback/gstplaybin2.c
Tim-Philipp Müller b1ff48c1a1 docs: remove old 0.10 Since markers 
They're just confusing.
2013-11-16 16:10:07 +00:00

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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, &amp;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 -v playbin uri=file:///path/to/somefile.avi
* ]| 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 (not possible via gst-launch),
* playbin will try to find a suitable audio and video sink automatically
* using the autoaudiosink and autovideosink elements.
* |[
* gst-launch -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 -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/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"
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 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;
/* 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;
/* 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;
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_LAST
};
/* 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");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw");
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 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 gboolean 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_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::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);
gstbin_klass->handle_message =
GST_DEBUG_FUNCPTR (gst_play_bin_handle_message);
}
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;
}
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;
}
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)
{
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);
}
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);
}
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
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,
NULL, 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));
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_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);
break;
case PROP_FORCE_ASPECT_RATIO:
g_object_set (playbin->playsink, "force-aspect-ratio",
g_value_get_boolean (value), NULL);
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;
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_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_VIDEO));
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_VIDEO));
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;
}
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 = playbin->curr_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;
new_group->stream_changed_pending = FALSE;
} 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_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);
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 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;
}
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;
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)
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);
}
}
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,
NULL, 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",
(gpointer) (guintptr) 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",
(gpointer) 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 %d",
GST_DEBUG_PAD_NAME (pad), 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;
}
/* 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 =
(guintptr) 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", 0);
}
if ((combine = g_object_get_data (G_OBJECT (pad), "playbin.combine"))) {
g_assert (combine->combiner == NULL);
g_assert (combine->srcpad == pad);
gst_object_unref (pad);
combine->srcpad = NULL;
goto exit;
}
/* get the combiner sinkpad */
if (!(peer = g_object_get_data (G_OBJECT (pad), "playbin.sinkpad")))
goto not_linked;
if ((combine = g_object_get_data (G_OBJECT (peer), "playbin.combine"))) {
if (combine->has_tags) {
gulong notify_tags_handler;
notify_tags_handler =
(guintptr) 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);
gst_object_unref (combine->srcpad);
combine->srcpad = NULL;
gst_element_set_state (combine->combiner, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), combine->combiner);
combine->combiner = NULL;
}
}
/* unlink the pad now (can fail, the pad is unlinked before it's removed) */
gst_pad_unlink (pad, peer);
/* get combiner, this can be NULL when the element is removing the pads
* because it's being disposed. */
combiner = GST_ELEMENT_CAST (gst_pad_get_parent (peer));
if (!combiner) {
gst_object_unref (peer);
goto no_combiner;
}
/* 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;
}
no_combiner:
{
GST_DEBUG_OBJECT (playbin, "combiner not found");
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);
} 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);
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);
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);
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));
}
/* unref the caps after usage */
static GstCaps *
get_template_caps (GstElementFactory * factory, GstPadDirection direction)
{
const GList *templates;
GstStaticPadTemplate *templ = NULL;
GList *walk;
templates = gst_element_factory_get_static_pad_templates (factory);
for (walk = (GList *) templates; walk; walk = g_list_next (walk)) {
templ = walk->data;
if (templ->direction == direction)
break;
}
if (templ)
return gst_static_caps_get (&templ->static_caps);
else
return NULL;
}
static gboolean
is_included (GList * list, GstCapsFeatures * cf)
{
for (; list; list = list->next) {
if (gst_caps_features_is_equal ((GstCapsFeatures *) list->data, cf))
return TRUE;
}
return FALSE;
}
/* compute the number of common caps features */
static guint
get_n_common_capsfeatures (GstPlayBin * playbin, GstElementFactory * dec,
GstElementFactory * sink, gboolean isaudioelement)
{
GstCaps *d_tmpl_caps, *s_tmpl_caps;
GstCapsFeatures *d_features, *s_features;
GstStructure *d_struct, *s_struct;
GList *cf_list = NULL;
guint d_caps_size, s_caps_size;
guint i, j, n_common_cf = 0;
GstCaps *raw_caps =
(isaudioelement) ? gst_static_caps_get (&raw_audio_caps) :
gst_static_caps_get (&raw_video_caps);
GstStructure *raw_struct = gst_caps_get_structure (raw_caps, 0);
GstPlayFlags flags = gst_play_bin_get_flags (playbin);
gboolean native_raw =
(isaudioelement ? ! !(flags & GST_PLAY_FLAG_NATIVE_AUDIO) : ! !(flags &
GST_PLAY_FLAG_NATIVE_VIDEO));
d_tmpl_caps = get_template_caps (dec, GST_PAD_SRC);
s_tmpl_caps = get_template_caps (sink, GST_PAD_SINK);
if (!d_tmpl_caps || !s_tmpl_caps) {
GST_ERROR ("Failed to get template caps from decoder or sink");
return 0;
}
d_caps_size = gst_caps_get_size (d_tmpl_caps);
s_caps_size = gst_caps_get_size (s_tmpl_caps);
for (i = 0; i < d_caps_size; i++) {
d_features = gst_caps_get_features ((const GstCaps *) d_tmpl_caps, i);
d_struct = gst_caps_get_structure ((const GstCaps *) d_tmpl_caps, i);
for (j = 0; j < s_caps_size; j++) {
s_features = gst_caps_get_features ((const GstCaps *) s_tmpl_caps, j);
s_struct = gst_caps_get_structure ((const GstCaps *) s_tmpl_caps, j);
/* A common caps feature is given if the caps features are equal
* and the structures can intersect. If the NATIVE_AUDIO/NATIVE_VIDEO
* flags are not set we also allow if both structures are raw caps with
* system memory caps features, because in that case we have converters in
* place.
*/
if (gst_caps_features_is_equal (d_features, s_features) &&
(gst_structure_can_intersect (d_struct, s_struct) ||
(!native_raw
&& gst_caps_features_is_equal (d_features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)
&& gst_structure_can_intersect (raw_struct, d_struct)
&& gst_structure_can_intersect (raw_struct, s_struct)))
&& !is_included (cf_list, s_features)) {
cf_list = g_list_prepend (cf_list, s_features);
n_common_cf++;
}
}
}
if (cf_list)
g_list_free (cf_list);
gst_caps_unref (d_tmpl_caps);
gst_caps_unref (s_tmpl_caps);
return n_common_cf;
}
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 auido/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 =
get_n_common_capsfeatures (playbin, d_factory, s_factory,
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;
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_DECODER)) {
dec_list = g_list_prepend (dec_list, 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;
dec_list = g_list_prepend (dec_list, factory);
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, ave->dec);
}
g_list_free (ave_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 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_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_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_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;
GstElement *sink;
GstPad *sinkpad = NULL;
GST_SOURCE_GROUP_LOCK (group);
if ((sink = group->text_sink))
sinkpad = gst_element_get_static_pad (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);
} 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_ancestor (GST_OBJECT_CAST (element),
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, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
}
if (!ret)
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, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
}
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) {
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;
}
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_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_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 ();
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)) {
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) {
result = gst_caps_merge (result, gst_pad_get_pad_template_caps (target));
gst_object_unref (target);
}
}
if (filter) {
GstCaps *intersection =
gst_caps_intersect_full (filter, result, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (result);
result = intersection;
}
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_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_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 gboolean
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;
g_return_val_if_fail (group->valid, FALSE);
g_return_val_if_fail (!group->active, FALSE);
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);
GST_SOURCE_GROUP_UNLOCK (group);
}
}
if (gst_element_set_state (uridecodebin, target) == GST_STATE_CHANGE_FAILURE)
goto uridecodebin_failure;
GST_SOURCE_GROUP_LOCK (group);
/* alow 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 TRUE;
/* 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");
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) {
gst_element_set_state (uridecodebin, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), uridecodebin);
}
GST_SOURCE_GROUP_UNLOCK (group);
return FALSE;
}
}
/* 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->valid, FALSE);
g_return_val_if_fail (group->active, 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) {
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);
combine->sinkpad = NULL;
}
gst_object_unref (combine->srcpad);
combine->srcpad = NULL;
}
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_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_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_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 gboolean
setup_next_source (GstPlayBin * playbin, GstState target)
{
GstSourceGroup *new_group, *old_group;
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;
new_group->stream_changed_pending = TRUE;
/* first unlink the current source, if any */
old_group = playbin->curr_group;
if (old_group && old_group->valid && old_group->active) {
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 (!activate_group (playbin, new_group, target))
goto activate_failed;
GST_PLAY_BIN_UNLOCK (playbin);
return TRUE;
/* 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 FALSE;
}
activate_failed:
{
new_group->stream_changed_pending = FALSE;
GST_DEBUG_OBJECT (playbin, "activate failed");
GST_PLAY_BIN_UNLOCK (playbin);
return FALSE;
}
}
/* 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);
if (!setup_next_source (playbin, GST_STATE_READY)) {
ret = GST_STATE_CHANGE_FAILURE;
goto failure;
}
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
* an 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:
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
/* 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;
}
}
GST_OBJECT_UNLOCK (playbin);
break;
}
default:
break;
}
return ret;
/* ERRORS */
failure:
{
if (transition == GST_STATE_CHANGE_READY_TO_PAUSED) {
GstSourceGroup *curr_group;
curr_group = playbin->curr_group;
if (curr_group && 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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