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gstreamer/subprojects/gst-plugins-base/gst/playback/gstplaybin3.c
Jan Schmidt a7deddd98a playbin3: Add lock to protect buffering messages 
Fix a small race where a group can receive stream-start
and post a pending buffering message just as another
thread posts a different buffering message, causing them
to be received by the application out of order. In the
worst case, this leads the application receiving a
stale 99% buffering message and going back to buffering
right after the 100% buffering message.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1901>
2022-03-09 09:15:04 +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>
* Copyright (C) <2015> Jan Schmidt <jan@centricular.com>
*
* 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-playbin3
* @title: playbin3
*
* playbin3 provides a stand-alone everything-in-one abstraction for an
* audio and/or video player. It differs from the previous playbin (playbin2)
* by supporting publication and selection of available streams via the
* #GstStreamCollection message and #GST_EVENT_SELECT_STREAMS event API.
*
* > playbin3 is still experimental API and a technology preview.
* > Its behaviour and exposed API is subject to change.
*
* playbin3 can handle both audio and video files and features
*
* * automatic file type recognition and based on that automatic
* selection and usage of the right audio/video/subtitle demuxers/decoders
*
* * auxiliary files - such as external subtitles and audio tracks
* * visualisations for audio files
* * subtitle support for video files. Subtitles can be store in external
* files.
* * stream selection between different video/audio/subtitles streams
* * meta info (tag) extraction
* * easy access to the last video sample
* * buffering when playing streams over a network
* * volume control with mute option
*
* ## Usage
*
* 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 #GstPlayBin3: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
*
* Playbin3 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 occurred yet.
* Applications using playbin3 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 occurred (an ERROR message has been received on the bus) or
* the user wants to play a different track, playbin3 should be set back to
* READY or NULL state, then the #GstPlayBin3:uri property should be set to the
* new location and then playbin3 be set to PLAYING state again.
*
* Seeking can be done using gst_element_seek_simple() or gst_element_seek()
* on the playbin3 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.
*
* ## Selecting streams
*
* The recommended way to select streams (instead of the default selection) is
* to listen to GST_MESSAGE_STREAM_COLLECTION messages on the GstBus and send a
* GST_EVENT_SELECT_STREAMS on the pipeline with the selected streams. This
* provides more information and flexibility compared to the legacy #GstPlayBin
* property and signal-based mechanism.
*
* Note: The application should not assume that collections will not change
* throughout a single file. If it wishes to modify the default selection, it
* should always respond to new collections posted on the bus with a
* GST_EVENT_SELECT_STREAMS.
*
* ## Advanced Usage: specifying the audio and video sink
*
* By default, if no audio sink or video sink has been specified via the
* #GstPlayBin3:audio-sink or #GstPlayBin3:video-sink property, playbin3 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 playbin3 using the
* #GstPlayBin3:audio-sink or #GstPlayBin3:video-sink property.
*
* GNOME-based applications, for example, will usually want to create
* gconfaudiosink and gconfvideosink elements and make playbin3 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 playbin3,
* 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!).
*
* ## Retrieving Tags and Other Meta Data
*
* 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.
*
* ## Buffering
* Playbin3 handles buffering automatically for the most part, but applications
* need to handle parts of the buffering process as well. Whenever playbin3 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 playbin3 to PLAYING or PAUSED state in response to these messages.
* They may also want to convey the buffering progress to the user in some
* way. Here is how to extract the percentage information from the message:
* |[
* switch (GST_MESSAGE_TYPE (msg)) {
* case GST_MESSAGE_BUFFERING: {
* gint percent = 0;
* gst_message_parse_buffering (msg, &percent);
* g_print ("Buffering (%u percent done)", percent);
* break;
* }
* ...
* }
* ]|
*
* Note that applications should keep/set the pipeline in the PAUSED state when
* a BUFFERING message is received with a buffer percent value < 100 and set
* the pipeline back to PLAYING state when a BUFFERING message with a value
* of 100 percent is received (if PLAYING is the desired state, that is).
*
* ## Embedding the video window in your application
* By default, playbin3 (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.
*
* ## Specifying which CD/DVD device to use
*
* The device to use for CDs/DVDs needs to be set on the source element playbin3
* creates before it is opened. The most generic way of doing this is to connect
* to playbin3's "source-setup" signal, which will be emitted by playbin3 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]
*
* ## Handling redirects
*
* 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.
*
* ## Examples
* |[
* gst-launch-1.0 -v playbin3 uri=file:///path/to/somefile.mp4
* ]|
* This will play back the given AVI video file, given that the video and
* audio decoders required to decode the content are installed. Since no
* special audio sink or video sink is supplied (via playbin3's audio-sink or
* video-sink properties) playbin3 will try to find a suitable audio and
* video sink automatically using the autoaudiosink and autovideosink elements.
* |[
* gst-launch-1.0 -v playbin3 uri=cdda://4
* ]|
* This will play back track 4 on an audio CD in your disc drive (assuming
* the drive is detected automatically by the plugin).
* |[
* gst-launch-1.0 -v playbin3 uri=dvd://
* ]|
* This will play back the DVD in your disc drive (assuming
* the drive is detected automatically by the plugin).
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/gst-i18n-plugin.h>
#include <gst/pbutils/pbutils.h>
#include <gst/audio/streamvolume.h>
#include <gst/video/video-info.h>
#include <gst/video/video-multiview.h>
#include <gst/video/videooverlay.h>
#include <gst/video/navigation.h>
#include <gst/video/colorbalance.h>
#include "gstplay-enum.h"
#include "gstplaybackelements.h"
#include "gstplaysink.h"
#include "gstsubtitleoverlay.h"
#include "gstplaybackutils.h"
GST_DEBUG_CATEGORY_STATIC (gst_play_bin3_debug);
#define GST_CAT_DEFAULT gst_play_bin3_debug
#define GST_TYPE_PLAY_BIN (gst_play_bin3_get_type())
#define GST_PLAY_BIN3(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BIN,GstPlayBin3))
#define GST_PLAY_BIN3_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BIN,GstPlayBin3Class))
#define GST_IS_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BIN))
#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
#define ULONG_TO_POINTER(number) ((gpointer) (guintptr) (number))
#define POINTER_TO_ULONG(number) ((guintptr) (number))
#define VOLUME_MAX_DOUBLE 10.0
typedef struct _GstPlayBin3 GstPlayBin3;
typedef struct _GstPlayBin3Class GstPlayBin3Class;
typedef struct _GstSourceGroup GstSourceGroup;
typedef struct _GstSourceCombine GstSourceCombine;
typedef struct _SourcePad SourcePad;
typedef GstCaps *(*SourceCombineGetMediaCapsFunc) (void);
/* GstSourceCombine controls all the information regarding a certain
* media type.
*
* It can control a custom combiner element (by default none)
*/
struct _GstSourceCombine
{
const gchar *media_type; /* the media type for the combiner */
SourceCombineGetMediaCapsFunc get_media_caps; /* more complex caps for the combiner */
GstPlaySinkType type; /* the sink pad type of the combiner */
GstStreamType stream_type; /* The GstStreamType of the combiner */
GstElement *combiner; /* the combiner */
GPtrArray *channels; /* Array of GstPad ? */
GstPad *srcpad; /* the source pad of the combiner */
GstPad *sinkpad; /* the sinkpad of the sink when the combiner
* is linked */
GPtrArray *streams; /* Sorted array of GstStream for the given type */
gboolean has_active_pad; /* stream combiner has the "active-pad" property */
gboolean is_concat; /* The stream combiner is the 'concat' element */
};
#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
};
/* names matching the enum above */
static const gchar *stream_type_names[] = {
"audio", "video", "text"
};
#define STREAM_TYPES_FORMAT "s%s%s"
#define STREAM_TYPES_ARGS(s) (s) & GST_STREAM_TYPE_AUDIO ? "audio " : "", \
(s) & GST_STREAM_TYPE_VIDEO ? "video " : "", \
(s) & GST_STREAM_TYPE_TEXT ? "text " : ""
#if 0 /* AUTOPLUG DISABLED */
static void avelements_free (gpointer data);
static GSequence *avelements_create (GstPlayBin3 * playbin,
gboolean isaudioelement);
#endif
/* 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 information about a uridecodebin pad */
struct _SourcePad
{
GstPad *pad; /* The controlled pad */
GstStreamType stream_type; /* stream type of the controlled pad */
gulong event_probe_id;
};
/* a structure to hold the objects for decoding a uri and the subtitle uri
*/
struct _GstSourceGroup
{
GstPlayBin3 *playbin;
GMutex lock;
gboolean valid; /* the group has valid info to start playback */
gboolean active; /* the group is active */
gboolean playing; /* the group is currently playing
* (outputted on the sinks) */
/* properties */
gchar *uri;
gchar *suburi;
/* The currently outputted group_id */
guint group_id;
/* Bit-wise set of stream types we have requested from uridecodebin3 */
GstStreamType selected_stream_types;
/* Bit-wise set of stream types for which pads are present */
GstStreamType present_stream_types;
/* TRUE if a 'about-to-finish' needs to be posted once we have
* got source pads for all requested stream types
*
* FIXME : Move this logic to uridecodebin3 later */
gboolean pending_about_to_finish;
/* uridecodebin to handle uri and suburi */
GstElement *uridecodebin;
/* Active sinks for each media type. These are initialized with
* the configured 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;
/* List of source pads */
GList *source_pads;
/* uridecodebin signals */
gulong pad_added_id;
gulong pad_removed_id;
gulong select_stream_id;
gulong source_setup_id;
gulong about_to_finish_id;
#if 0 /* AUTOPLUG DISABLED */
gulong autoplug_factories_id;
gulong autoplug_select_id;
gulong autoplug_continue_id;
gulong autoplug_query_id;
#endif
gboolean stream_changed_pending;
/* Active stream collection */
GstStreamCollection *collection;
/* buffering message stored for after switching */
GstMessage *pending_buffering_msg;
};
#define GST_PLAY_BIN3_GET_LOCK(bin) (&((GstPlayBin3*)(bin))->lock)
#define GST_PLAY_BIN3_LOCK(bin) (g_rec_mutex_lock (GST_PLAY_BIN3_GET_LOCK(bin)))
#define GST_PLAY_BIN3_UNLOCK(bin) (g_rec_mutex_unlock (GST_PLAY_BIN3_GET_LOCK(bin)))
/* lock to protect dynamic callbacks, like no-more-pads */
#define GST_PLAY_BIN3_DYN_LOCK(bin) g_mutex_lock (&(bin)->dyn_lock)
#define GST_PLAY_BIN3_DYN_UNLOCK(bin) g_mutex_unlock (&(bin)->dyn_lock)
/* lock for shutdown */
#define GST_PLAY_BIN3_SHUTDOWN_LOCK(bin,label) \
G_STMT_START { \
if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) \
goto label; \
GST_PLAY_BIN3_DYN_LOCK (bin); \
if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) { \
GST_PLAY_BIN3_DYN_UNLOCK (bin); \
goto label; \
} \
} G_STMT_END
/* unlock for shutdown */
#define GST_PLAY_BIN3_SHUTDOWN_UNLOCK(bin) \
GST_PLAY_BIN3_DYN_UNLOCK (bin); \
/**
* GstPlayBin3:
*
* playbin element structure
*/
struct _GstPlayBin3
{
GstPipeline parent;
GRecMutex lock; /* to protect group switching */
/* the input 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 */
/* Array of GstPad controlled by each combiner */
GPtrArray *channels[PLAYBIN_STREAM_LAST]; /* links to combiner pads */
/* combiners for different streams */
GstSourceCombine combiner[PLAYBIN_STREAM_LAST];
/* Bit-wise set of stream types we have requested from uridecodebin3.
* Calculated as the combination of the 'selected_stream_types' of
* each sourcegroup */
GstStreamType selected_stream_types;
/* Bit-wise set of configured output stream types (i.e. active
playsink inputs and combiners) */
GstStreamType active_stream_types;
/* 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 */
gboolean do_stream_selections; /* Set to TRUE when any of current-{video|audio|text} are set to
say playbin should do backwards-compatibility behaviours */
guint64 buffer_duration; /* When buffering, the max buffer duration (ns) */
guint buffer_size; /* When buffering, the max buffer size (bytes) */
gboolean force_aspect_ratio;
/* Multiview/stereoscopic overrides */
GstVideoMultiviewFramePacking multiview_mode;
GstVideoMultiviewFlags multiview_flags;
/* our play sink */
GstPlaySink *playsink;
/* Task for (de)activating groups, protected by the activation lock */
GstTask *activation_task;
GRecMutex activation_lock;
/* lock protecting dynamic adding/removing */
GMutex dyn_lock;
/* if we are shutting down or not */
gint shutdown;
gboolean async_pending; /* async-start has been emitted */
GMutex elements_lock;
guint32 elements_cookie;
GList *elements; /* factories we can use for selecting elements */
gboolean have_selector; /* set to FALSE when we fail to create an
* input-selector, so that we only post a
* warning once */
gboolean video_pending_flush_finish; /* whether we are pending to send a custom
* custom-video-flush-finish event
* on pad activation */
gboolean audio_pending_flush_finish; /* whether we are pending to send a custom
* custom-audio-flush-finish event
* on pad activation */
gboolean text_pending_flush_finish; /* whether we are pending to send a custom
* custom-subtitle-flush-finish event
* on pad activation */
GstElement *audio_sink; /* configured audio sink, or NULL */
GstElement *video_sink; /* configured video sink, or NULL */
GstElement *text_sink; /* configured text sink, or NULL */
GstElement *audio_stream_combiner; /* configured audio stream combiner, or NULL */
GstElement *video_stream_combiner; /* configured video stream combiner, or NULL */
GstElement *text_stream_combiner; /* configured text stream combiner, or NULL */
GSequence *aelements; /* a list of GstAVElements for audio stream */
GSequence *velements; /* a list of GstAVElements for video stream */
guint64 ring_buffer_max_size; /* 0 means disabled */
gboolean is_live; /* Whether our current group is live */
GMutex buffering_post_lock; /* Protect serialisation of buffering messages. Must not acquire this while holding any SOURCE_GROUP lock */
};
struct _GstPlayBin3Class
{
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) (GstPlayBin3 * playbin);
/* get the last video sample and convert it to the given caps */
GstSample *(*convert_sample) (GstPlayBin3 * playbin, GstCaps * caps);
};
/* props */
#define DEFAULT_URI NULL
#define DEFAULT_SUBURI 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 | GST_PLAY_FLAG_BUFFERING
#define DEFAULT_CURRENT_VIDEO -1
#define DEFAULT_CURRENT_AUDIO -1
#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_FLAGS,
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_TEXT_OFFSET,
PROP_RING_BUFFER_MAX_SIZE,
PROP_FORCE_ASPECT_RATIO,
PROP_AUDIO_FILTER,
PROP_VIDEO_FILTER,
PROP_MULTIVIEW_MODE,
PROP_MULTIVIEW_FLAGS
};
/* signals */
enum
{
SIGNAL_ABOUT_TO_FINISH,
SIGNAL_CONVERT_SAMPLE,
SIGNAL_SOURCE_SETUP,
SIGNAL_ELEMENT_SETUP,
LAST_SIGNAL
};
#if 0 /* AUTOPLUG DISABLED */
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw(ANY)");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw(ANY)");
#endif
static void gst_play_bin3_finalize (GObject * object);
static void gst_play_bin3_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_play_bin3_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec);
static GstStateChangeReturn gst_play_bin3_change_state (GstElement * element,
GstStateChange transition);
static void gst_play_bin3_handle_message (GstBin * bin, GstMessage * message);
static void gst_play_bin3_deep_element_added (GstBin * playbin,
GstBin * sub_bin, GstElement * child);
static gboolean gst_play_bin3_send_event (GstElement * element,
GstEvent * event);
static GstSample *gst_play_bin3_convert_sample (GstPlayBin3 * playbin,
GstCaps * caps);
static GstStateChangeReturn setup_next_source (GstPlayBin3 * playbin);
static void gst_play_bin3_check_group_status (GstPlayBin3 * playbin);
static void emit_about_to_finish (GstPlayBin3 * playbin);
static void reconfigure_output (GstPlayBin3 * playbin);
static void pad_removed_cb (GstElement * decodebin, GstPad * pad,
GstSourceGroup * group);
static gint select_stream_cb (GstElement * decodebin,
GstStreamCollection * collection, GstStream * stream,
GstSourceGroup * group);
static void do_stream_selection (GstPlayBin3 * playbin, GstSourceGroup * group);
static GstElementClass *parent_class;
static guint gst_play_bin3_signals[LAST_SIGNAL] = { 0 };
#define REMOVE_SIGNAL(obj,id) \
if (id) { \
g_signal_handler_disconnect (obj, id); \
id = 0; \
}
static void gst_play_bin3_overlay_init (gpointer g_iface,
gpointer g_iface_data);
static void gst_play_bin3_navigation_init (gpointer g_iface,
gpointer g_iface_data);
static void gst_play_bin3_colorbalance_init (gpointer g_iface,
gpointer g_iface_data);
static void
_do_init_type (GType type)
{
static const GInterfaceInfo svol_info = {
NULL, NULL, NULL
};
static const GInterfaceInfo ov_info = {
gst_play_bin3_overlay_init,
NULL, NULL
};
static const GInterfaceInfo nav_info = {
gst_play_bin3_navigation_init,
NULL, NULL
};
static const GInterfaceInfo col_info = {
gst_play_bin3_colorbalance_init,
NULL, NULL
};
g_type_add_interface_static (type, GST_TYPE_STREAM_VOLUME, &svol_info);
g_type_add_interface_static (type, GST_TYPE_VIDEO_OVERLAY, &ov_info);
g_type_add_interface_static (type, GST_TYPE_NAVIGATION, &nav_info);
g_type_add_interface_static (type, GST_TYPE_COLOR_BALANCE, &col_info);
}
static GType gst_play_bin3_get_type (void);
G_DEFINE_TYPE_WITH_CODE (GstPlayBin3, gst_play_bin3, GST_TYPE_PIPELINE,
_do_init_type (g_define_type_id));
GST_ELEMENT_REGISTER_DEFINE_CUSTOM (playbin3,
gst_play_bin3_custom_element_init);
static void
gst_play_bin3_class_init (GstPlayBin3Class * 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_bin3_set_property;
gobject_klass->get_property = gst_play_bin3_get_property;
gobject_klass->finalize = gst_play_bin3_finalize;
/**
* GstPlayBin3: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));
/**
* GstPlayBin3: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));
/**
* GstPlayBin3: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));
/**
* GstPlayBin3: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));
/**
* GstPlayBin3: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));
g_object_class_install_property (gobject_klass, PROP_SUBTITLE_ENCODING,
g_param_spec_string ("subtitle-encoding", "subtitle encoding",
"Encoding to assume if input subtitles are not in UTF-8 encoding. "
"If not set, the GST_SUBTITLE_ENCODING environment variable will "
"be checked for an encoding to use. If that is not set either, "
"ISO-8859-15 will be assumed.", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VIDEO_FILTER,
g_param_spec_object ("video-filter", "Video filter",
"the video filter(s) to apply, if possible",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_AUDIO_FILTER,
g_param_spec_object ("audio-filter", "Audio filter",
"the audio filter(s) to apply, if possible",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3:video-sink
*
* Get or set the video sink to use for video output. If set to
* NULL, one will be auto-selected. To disable video entirely, unset
* the VIDEO flag in the #GstPlayBin3:flags property.
*
*/
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));
/**
* GstPlayBin3:audio-sink
*
* Get or set the audio sink to use for audio output. If set to
* NULL, one will be auto-selected. To disable audio entirely, unset
* the AUDIO flag in the #GstPlayBin3:flags property.
*
*/
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));
/**
* GstPlayBin3:video-stream-combiner
*
* Get or set the current video stream combiner. By default, no
* element is used and the selected stream is used directly.
*/
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 (default: none)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3:audio-stream-combiner
*
* Get or set the current audio stream combiner. By default, no
* element is used and the selected stream is used directly.
*/
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 (default: none))",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3:text-stream-combiner
*
* Get or set the current text stream combiner. By default, no
* element is used and the selected stream is used directly.
*/
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 (default: none)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3: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));
/**
* GstPlayBin3:sample:
* @playbin: a #GstPlayBin3
*
* 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));
/**
* GstPlayBin3: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));
/**
* GstPlayBin3:text-offset:
*
* Control the synchronisation offset between the text and video streams.
* Positive values make the text ahead of the video and negative values make
* the text go behind the video.
*/
g_object_class_install_property (gobject_klass, PROP_TEXT_OFFSET,
g_param_spec_int64 ("text-offset", "Text Offset",
"The synchronisation offset between text and video in nanoseconds",
G_MININT64, G_MAXINT64, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3: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));
/**
* GstPlayBin3::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));
/**
* GstPlayBin3::video-multiview-mode:
*
* Set the stereoscopic mode for video streams that don't contain
* any information in the stream, so they can be correctly played
* as 3D streams. If a video already has multiview information
* encoded, this property can override other modes in the set,
* but cannot be used to re-interpret MVC or mixed-mono streams.
*
* See Also: The #GstPlayBin3::video-multiview-flags property
*
*/
g_object_class_install_property (gobject_klass, PROP_MULTIVIEW_MODE,
g_param_spec_enum ("video-multiview-mode",
"Multiview Mode Override",
"Re-interpret a video stream as one of several frame-packed stereoscopic modes.",
GST_TYPE_VIDEO_MULTIVIEW_FRAME_PACKING,
GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3::video-multiview-flags:
*
* When overriding the multiview mode of an input stream,
* these flags modify details of the view layout.
*
* See Also: The #GstPlayBin3::video-multiview-mode property
*/
g_object_class_install_property (gobject_klass, PROP_MULTIVIEW_FLAGS,
g_param_spec_flags ("video-multiview-flags",
"Multiview Flags Override",
"Override details of the multiview frame layout",
GST_TYPE_VIDEO_MULTIVIEW_FLAGS, GST_VIDEO_MULTIVIEW_FLAGS_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlayBin3::about-to-finish
* @playbin: a #GstPlayBin3
*
* 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_bin3_signals[SIGNAL_ABOUT_TO_FINISH] =
g_signal_new ("about-to-finish", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstPlayBin3Class, about_to_finish), NULL, NULL,
NULL, G_TYPE_NONE, 0, G_TYPE_NONE);
/**
* GstPlayBin3::source-setup:
* @playbin: a #GstPlayBin3
* @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_bin3_signals[SIGNAL_SOURCE_SETUP] =
g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
/**
* GstPlayBin3::element-setup:
* @playbin: a #GstPlayBin3
* @element: an element that was added to the playbin hierarchy
*
* This signal is emitted when a new element is added to playbin or any of
* its sub-bins. This signal can be used to configure elements, e.g. to set
* properties on decoders. This is functionally equivalent to connecting to
* the deep-element-added signal, but more convenient.
*
* This signal is usually emitted from the context of a GStreamer streaming
* thread, so might be called at the same time as code running in the main
* application thread.
*
* Since: 1.10
*/
gst_play_bin3_signals[SIGNAL_ELEMENT_SETUP] =
g_signal_new ("element-setup", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
/**
* GstPlayBin3::convert-sample
* @playbin: a #GstPlayBin3
* @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 #GstPlayBin3:sample 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_bin3_signals[SIGNAL_CONVERT_SAMPLE] =
g_signal_new ("convert-sample", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlayBin3Class, convert_sample), NULL, NULL,
NULL, GST_TYPE_SAMPLE, 1, GST_TYPE_CAPS);
klass->convert_sample = gst_play_bin3_convert_sample;
gst_element_class_set_static_metadata (gstelement_klass,
"Player Bin 3", "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_bin3_change_state);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_bin3_send_event);
gstbin_klass->handle_message =
GST_DEBUG_FUNCPTR (gst_play_bin3_handle_message);
gstbin_klass->deep_element_added =
GST_DEBUG_FUNCPTR (gst_play_bin3_deep_element_added);
}
static void
do_async_start (GstPlayBin3 * playbin)
{
GstMessage *message;
playbin->async_pending = TRUE;
message = gst_message_new_async_start (GST_OBJECT_CAST (playbin));
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (playbin),
message);
}
static void
do_async_done (GstPlayBin3 * playbin)
{
GstMessage *message;
if (playbin->async_pending) {
GST_DEBUG_OBJECT (playbin, "posting ASYNC_DONE");
message =
gst_message_new_async_done (GST_OBJECT_CAST (playbin),
GST_CLOCK_TIME_NONE);
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (playbin),
message);
playbin->async_pending = FALSE;
}
}
/* init combiners. The combiner is found by finding the first prefix that
* matches the media. */
static void
init_combiners (GstPlayBin3 * playbin)
{
gint i;
/* store the array for the different channels */
for (i = 0; i < PLAYBIN_STREAM_LAST; i++)
playbin->channels[i] = g_ptr_array_new ();
playbin->combiner[PLAYBIN_STREAM_AUDIO].media_type = "audio";
playbin->combiner[PLAYBIN_STREAM_AUDIO].type = GST_PLAY_SINK_TYPE_AUDIO;
playbin->combiner[PLAYBIN_STREAM_AUDIO].stream_type = GST_STREAM_TYPE_AUDIO;
playbin->combiner[PLAYBIN_STREAM_AUDIO].channels = playbin->channels[0];
playbin->combiner[PLAYBIN_STREAM_AUDIO].streams =
g_ptr_array_new_with_free_func ((GDestroyNotify) gst_object_unref);
playbin->combiner[PLAYBIN_STREAM_VIDEO].media_type = "video";
playbin->combiner[PLAYBIN_STREAM_VIDEO].type = GST_PLAY_SINK_TYPE_VIDEO;
playbin->combiner[PLAYBIN_STREAM_VIDEO].stream_type = GST_STREAM_TYPE_VIDEO;
playbin->combiner[PLAYBIN_STREAM_VIDEO].channels = playbin->channels[1];
playbin->combiner[PLAYBIN_STREAM_VIDEO].streams =
g_ptr_array_new_with_free_func ((GDestroyNotify) gst_object_unref);
playbin->combiner[PLAYBIN_STREAM_TEXT].media_type = "text";
playbin->combiner[PLAYBIN_STREAM_TEXT].get_media_caps =
gst_subtitle_overlay_create_factory_caps;
playbin->combiner[PLAYBIN_STREAM_TEXT].type = GST_PLAY_SINK_TYPE_TEXT;
playbin->combiner[PLAYBIN_STREAM_TEXT].stream_type = GST_STREAM_TYPE_TEXT;
playbin->combiner[PLAYBIN_STREAM_TEXT].channels = playbin->channels[2];
playbin->combiner[PLAYBIN_STREAM_TEXT].streams =
g_ptr_array_new_with_free_func ((GDestroyNotify) gst_object_unref);
}
/* Update the combiner information to be in sync with the current collection
*
* FIXME : "current" collection doesn't mean anything until we have a "combined"
* collection of all groups */
static void
update_combiner_info (GstPlayBin3 * playbin, GstStreamCollection * collection)
{
guint i, len;
if (collection == NULL)
return;
GST_DEBUG_OBJECT (playbin, "Updating combiner info");
/* Wipe current combiner streams */
g_ptr_array_free (playbin->combiner[PLAYBIN_STREAM_AUDIO].streams, TRUE);
g_ptr_array_free (playbin->combiner[PLAYBIN_STREAM_VIDEO].streams, TRUE);
g_ptr_array_free (playbin->combiner[PLAYBIN_STREAM_TEXT].streams, TRUE);
playbin->combiner[PLAYBIN_STREAM_AUDIO].streams =
g_ptr_array_new_with_free_func ((GDestroyNotify) gst_object_unref);
playbin->combiner[PLAYBIN_STREAM_VIDEO].streams =
g_ptr_array_new_with_free_func ((GDestroyNotify) gst_object_unref);
playbin->combiner[PLAYBIN_STREAM_TEXT].streams =
g_ptr_array_new_with_free_func ((GDestroyNotify) gst_object_unref);
len = gst_stream_collection_get_size (collection);
for (i = 0; i < len; i++) {
GstStream *stream = gst_stream_collection_get_stream (collection, i);
GstStreamType stype = gst_stream_get_stream_type (stream);
if (stype & GST_STREAM_TYPE_AUDIO) {
g_ptr_array_add (playbin->combiner[PLAYBIN_STREAM_AUDIO].streams,
gst_object_ref (stream));
} else if (stype & GST_STREAM_TYPE_VIDEO) {
g_ptr_array_add (playbin->combiner[PLAYBIN_STREAM_VIDEO].streams,
gst_object_ref (stream));
} else if (stype & GST_STREAM_TYPE_TEXT) {
g_ptr_array_add (playbin->combiner[PLAYBIN_STREAM_TEXT].streams,
gst_object_ref (stream));
}
}
GST_DEBUG_OBJECT (playbin, "There are %d audio streams",
playbin->combiner[PLAYBIN_STREAM_AUDIO].streams->len);
GST_DEBUG_OBJECT (playbin, "There are %d video streams",
playbin->combiner[PLAYBIN_STREAM_VIDEO].streams->len);
GST_DEBUG_OBJECT (playbin, "There are %d text streams",
playbin->combiner[PLAYBIN_STREAM_TEXT].streams->len);
}
#ifndef GST_DISABLE_GST_DEBUG
#define debug_groups(playbin) G_STMT_START { \
guint i; \
\
for (i = 0; i < 2; i++) { \
GstSourceGroup *group = &playbin->groups[i]; \
\
GST_DEBUG ("GstSourceGroup #%d (%s)", i, (group == playbin->curr_group) ? "current" : (group == playbin->next_group) ? "next" : "unused"); \
GST_DEBUG (" valid:%d , active:%d , playing:%d", group->valid, group->active, group->playing); \
GST_DEBUG (" uri:%s", group->uri); \
GST_DEBUG (" suburi:%s", group->suburi); \
GST_DEBUG (" group_id:%d", group->group_id); \
GST_DEBUG (" pending_about_to_finish:%d", group->pending_about_to_finish); \
} \
} G_STMT_END
#else
#define debug_groups(p) {}
#endif
static void
init_group (GstPlayBin3 * playbin, GstSourceGroup * group)
{
g_mutex_init (&group->lock);
group->stream_changed_pending = FALSE;
group->group_id = GST_GROUP_ID_INVALID;
group->playbin = playbin;
}
static void
free_group (GstPlayBin3 * playbin, GstSourceGroup * group)
{
g_free (group->uri);
g_free (group->suburi);
g_mutex_clear (&group->lock);
group->stream_changed_pending = FALSE;
if (group->pending_buffering_msg)
gst_message_unref (group->pending_buffering_msg);
group->pending_buffering_msg = NULL;
gst_object_replace ((GstObject **) & group->collection, NULL);
gst_object_replace ((GstObject **) & group->audio_sink, NULL);
gst_object_replace ((GstObject **) & group->video_sink, NULL);
gst_object_replace ((GstObject **) & group->text_sink, NULL);
}
static void
notify_volume_cb (GObject * combiner, GParamSpec * pspec, GstPlayBin3 * playbin)
{
g_object_notify (G_OBJECT (playbin), "volume");
}
static void
notify_mute_cb (GObject * combiner, GParamSpec * pspec, GstPlayBin3 * playbin)
{
g_object_notify (G_OBJECT (playbin), "mute");
}
static void
colorbalance_value_changed_cb (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value, GstPlayBin3 * playbin)
{
gst_color_balance_value_changed (GST_COLOR_BALANCE (playbin), channel, value);
}
#if 0 /* AUTOPLUG DISABLED */
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_bin3_update_elements_list (GstPlayBin3 * 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;
}
#endif
static void
gst_play_bin3_init (GstPlayBin3 * playbin)
{
g_rec_mutex_init (&playbin->lock);
g_mutex_init (&playbin->dyn_lock);
g_mutex_init (&playbin->buffering_post_lock);
/* assume we can create an input-selector */
playbin->have_selector = TRUE;
init_combiners (playbin);
/* 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);
g_rec_mutex_init (&playbin->activation_lock);
/* add sink */
playbin->playsink =
g_object_new (GST_TYPE_PLAY_SINK, "name", "playsink", "send-event-mode",
1, NULL);
gst_bin_add (GST_BIN_CAST (playbin), GST_ELEMENT_CAST (playbin->playsink));
gst_play_sink_set_flags (playbin->playsink, DEFAULT_FLAGS);
/* Connect to notify::volume and notify::mute signals for proxying */
g_signal_connect (playbin->playsink, "notify::volume",
G_CALLBACK (notify_volume_cb), playbin);
g_signal_connect (playbin->playsink, "notify::mute",
G_CALLBACK (notify_mute_cb), playbin);
g_signal_connect (playbin->playsink, "value-changed",
G_CALLBACK (colorbalance_value_changed_cb), playbin);
playbin->current_video = DEFAULT_CURRENT_VIDEO;
playbin->current_audio = DEFAULT_CURRENT_AUDIO;
playbin->current_text = DEFAULT_CURRENT_TEXT;
playbin->buffer_duration = DEFAULT_BUFFER_DURATION;
playbin->buffer_size = DEFAULT_BUFFER_SIZE;
playbin->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
playbin->force_aspect_ratio = TRUE;
playbin->multiview_mode = GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE;
playbin->multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
playbin->is_live = FALSE;
}
static void
gst_play_bin3_finalize (GObject * object)
{
GstPlayBin3 *playbin;
gint i;
playbin = GST_PLAY_BIN3 (object);
free_group (playbin, &playbin->groups[0]);
free_group (playbin, &playbin->groups[1]);
for (i = 0; i < PLAYBIN_STREAM_LAST; i++)
g_ptr_array_free (playbin->channels[i], TRUE);
/* 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);
}
g_ptr_array_free (playbin->combiner[PLAYBIN_STREAM_AUDIO].streams, TRUE);
g_ptr_array_free (playbin->combiner[PLAYBIN_STREAM_VIDEO].streams, TRUE);
g_ptr_array_free (playbin->combiner[PLAYBIN_STREAM_TEXT].streams, TRUE);
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_rec_mutex_clear (&playbin->activation_lock);
g_rec_mutex_clear (&playbin->lock);
g_mutex_clear (&playbin->buffering_post_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 (GstPlayBin3 * 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_bin3_set_uri (GstPlayBin3 * 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_BIN3_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_BIN3_UNLOCK (playbin);
}
static void
gst_play_bin3_set_suburi (GstPlayBin3 * playbin, const gchar * suburi)
{
GstSourceGroup *group;
GST_PLAY_BIN3_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_BIN3_UNLOCK (playbin);
}
static void
gst_play_bin3_set_flags (GstPlayBin3 * playbin, GstPlayFlags flags)
{
GstPlayFlags old_flags;
old_flags = gst_play_sink_get_flags (playbin->playsink);
if (flags != old_flags) {
gst_play_sink_set_flags (playbin->playsink, flags);
gst_play_sink_reconfigure (playbin->playsink);
}
}
static GstPlayFlags
gst_play_bin3_get_flags (GstPlayBin3 * 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 (GstPlayBin3 * playbin)
{
GstSourceGroup *result;
if (!(result = playbin->curr_group))
result = playbin->next_group;
return result;
}
static GstSample *
gst_play_bin3_convert_sample (GstPlayBin3 * playbin, GstCaps * caps)
{
return gst_play_sink_convert_sample (playbin->playsink, caps);
}
static gboolean
gst_play_bin3_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_bin3_set_current_stream (GstPlayBin3 * playbin,
gint stream_type, gint * current_value, gint stream,
gboolean * flush_marker)
{
GstSourceCombine *combine;
GPtrArray *channels;
GstPad *sinkpad;
GST_PLAY_BIN3_LOCK (playbin);
/* This function is only called if the app sets
* one of the current-* properties, which means it doesn't
* handle collections or select-streams yet */
playbin->do_stream_selections = TRUE;
combine = playbin->combiner + stream_type;
channels = playbin->channels[stream_type];
GST_DEBUG_OBJECT (playbin, "Changing current %s stream %d -> %d",
stream_type_names[stream_type], *current_value, stream);
if (combine->combiner == NULL || combine->is_concat) {
/* FIXME: Check that the current_value is within range */
*current_value = stream;
do_stream_selection (playbin, playbin->curr_group);
GST_PLAY_BIN3_UNLOCK (playbin);
return TRUE;
}
GST_DEBUG_OBJECT (playbin, "Using old style combiner");
if (!combine->has_active_pad)
goto no_active_pad;
if (channels == NULL)
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_BIN3_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) {
/* FIXME: Is there actually any reason playsink
* needs special names for each type of stream we flush? */
gchar *flush_event_name = g_strdup_printf ("playsink-custom-%s-flush",
stream_type_names[stream_type]);
if (gst_play_bin3_send_custom_event (combiner, flush_event_name))
*flush_marker = TRUE;
g_free (flush_event_name);
/* activate the selected pad */
g_object_set (combiner, "active-pad", sinkpad, NULL);
}
if (old_sinkpad)
gst_object_unref (old_sinkpad);
gst_object_unref (combiner);
}
gst_object_unref (sinkpad);
}
return TRUE;
no_active_pad:
{
GST_PLAY_BIN3_UNLOCK (playbin);
GST_WARNING_OBJECT (playbin,
"can't switch %s, the stream combiner's sink pads don't have the \"active-pad\" property",
stream_type_names[stream_type]);
return FALSE;
}
no_channels:
{
GST_PLAY_BIN3_UNLOCK (playbin);
GST_DEBUG_OBJECT (playbin, "can't switch video, we have no channels");
return FALSE;
}
}
static gboolean
gst_play_bin3_set_current_video_stream (GstPlayBin3 * playbin, gint stream)
{
return gst_play_bin3_set_current_stream (playbin, PLAYBIN_STREAM_VIDEO,
&playbin->current_video, stream, &playbin->video_pending_flush_finish);
}
static gboolean
gst_play_bin3_set_current_audio_stream (GstPlayBin3 * playbin, gint stream)
{
return gst_play_bin3_set_current_stream (playbin, PLAYBIN_STREAM_AUDIO,
&playbin->current_audio, stream, &playbin->audio_pending_flush_finish);
}
static gboolean
gst_play_bin3_set_current_text_stream (GstPlayBin3 * playbin, gint stream)
{
return gst_play_bin3_set_current_stream (playbin, PLAYBIN_STREAM_TEXT,
&playbin->current_text, stream, &playbin->text_pending_flush_finish);
}
static void
gst_play_bin3_set_sink (GstPlayBin3 * 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_bin3_set_stream_combiner (GstPlayBin3 * playbin, GstElement ** elem,
const gchar * dbg, GstElement * combiner)
{
GST_INFO_OBJECT (playbin, "Setting %s stream combiner to %" GST_PTR_FORMAT,
dbg, combiner);
GST_PLAY_BIN3_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_BIN3_UNLOCK (playbin);
}
static void
gst_play_bin3_set_encoding (GstPlayBin3 * playbin, const gchar * encoding)
{
GST_PLAY_BIN3_LOCK (playbin);
gst_play_sink_set_subtitle_encoding (playbin->playsink, encoding);
GST_PLAY_BIN3_UNLOCK (playbin);
}
static void
gst_play_bin3_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (object);
switch (prop_id) {
case PROP_URI:
gst_play_bin3_set_uri (playbin, g_value_get_string (value));
break;
case PROP_SUBURI:
gst_play_bin3_set_suburi (playbin, g_value_get_string (value));
break;
case PROP_FLAGS:
gst_play_bin3_set_flags (playbin, g_value_get_flags (value));
if (playbin->curr_group) {
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->uridecodebin) {
g_object_set (playbin->curr_group->uridecodebin, "download",
(g_value_get_flags (value) & GST_PLAY_FLAG_DOWNLOAD) != 0, NULL);
}
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
}
break;
case PROP_SUBTITLE_ENCODING:
gst_play_bin3_set_encoding (playbin, g_value_get_string (value));
break;
case PROP_VIDEO_FILTER:
gst_play_sink_set_filter (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO,
GST_ELEMENT (g_value_get_object (value)));
break;
case PROP_AUDIO_FILTER:
gst_play_sink_set_filter (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO,
GST_ELEMENT (g_value_get_object (value)));
break;
case PROP_VIDEO_SINK:
gst_play_bin3_set_sink (playbin, GST_PLAY_SINK_TYPE_VIDEO, "video",
&playbin->video_sink, g_value_get_object (value));
break;
case PROP_AUDIO_SINK:
gst_play_bin3_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_bin3_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_bin3_set_stream_combiner (playbin,
&playbin->video_stream_combiner, "video", g_value_get_object (value));
break;
case PROP_AUDIO_STREAM_COMBINER:
gst_play_bin3_set_stream_combiner (playbin,
&playbin->audio_stream_combiner, "audio", g_value_get_object (value));
break;
case PROP_TEXT_STREAM_COMBINER:
gst_play_bin3_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_BIN3_LOCK (playbin);
playbin->connection_speed = g_value_get_uint64 (value) * 1000;
GST_PLAY_BIN3_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_TEXT_OFFSET:
gst_play_sink_set_text_offset (playbin->playsink,
g_value_get_int64 (value));
break;
case PROP_RING_BUFFER_MAX_SIZE:
playbin->ring_buffer_max_size = g_value_get_uint64 (value);
if (playbin->curr_group) {
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->uridecodebin) {
g_object_set (playbin->curr_group->uridecodebin,
"ring-buffer-max-size", playbin->ring_buffer_max_size, NULL);
}
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
}
break;
case PROP_FORCE_ASPECT_RATIO:
g_object_set (playbin->playsink, "force-aspect-ratio",
g_value_get_boolean (value), NULL);
break;
case PROP_MULTIVIEW_MODE:
GST_PLAY_BIN3_LOCK (playbin);
playbin->multiview_mode = g_value_get_enum (value);
GST_PLAY_BIN3_UNLOCK (playbin);
break;
case PROP_MULTIVIEW_FLAGS:
GST_PLAY_BIN3_LOCK (playbin);
playbin->multiview_flags = g_value_get_flags (value);
GST_PLAY_BIN3_UNLOCK (playbin);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElement *
gst_play_bin3_get_current_sink (GstPlayBin3 * 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_BIN3_LOCK (playbin);
if ((sink = *elem))
gst_object_ref (sink);
GST_PLAY_BIN3_UNLOCK (playbin);
}
return sink;
}
static GstElement *
gst_play_bin3_get_current_stream_combiner (GstPlayBin3 * playbin,
GstElement ** elem, const gchar * dbg, int stream_type)
{
GstElement *combiner;
GST_PLAY_BIN3_LOCK (playbin);
/* The special concat element should never be returned */
if (playbin->combiner[stream_type].is_concat)
combiner = NULL;
else if ((combiner = playbin->combiner[stream_type].combiner))
gst_object_ref (combiner);
else if ((combiner = *elem))
gst_object_ref (combiner);
GST_PLAY_BIN3_UNLOCK (playbin);
return combiner;
}
static void
gst_play_bin3_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (object);
switch (prop_id) {
case PROP_URI:
{
GstSourceGroup *group;
GST_PLAY_BIN3_LOCK (playbin);
group = playbin->next_group;
g_value_set_string (value, group->uri);
GST_PLAY_BIN3_UNLOCK (playbin);
break;
}
case PROP_CURRENT_URI:
{
GstSourceGroup *group;
GST_PLAY_BIN3_LOCK (playbin);
group = get_group (playbin);
g_value_set_string (value, group->uri);
GST_PLAY_BIN3_UNLOCK (playbin);
break;
}
case PROP_SUBURI:
{
GstSourceGroup *group;
GST_PLAY_BIN3_LOCK (playbin);
group = playbin->next_group;
g_value_set_string (value, group->suburi);
GST_PLAY_BIN3_UNLOCK (playbin);
break;
}
case PROP_CURRENT_SUBURI:
{
GstSourceGroup *group;
GST_PLAY_BIN3_LOCK (playbin);
group = get_group (playbin);
g_value_set_string (value, group->suburi);
GST_PLAY_BIN3_UNLOCK (playbin);
break;
}
case PROP_FLAGS:
g_value_set_flags (value, gst_play_bin3_get_flags (playbin));
break;
case PROP_SUBTITLE_ENCODING:
GST_PLAY_BIN3_LOCK (playbin);
g_value_take_string (value,
gst_play_sink_get_subtitle_encoding (playbin->playsink));
GST_PLAY_BIN3_UNLOCK (playbin);
break;
case PROP_VIDEO_FILTER:
g_value_take_object (value,
gst_play_sink_get_filter (playbin->playsink,
GST_PLAY_SINK_TYPE_VIDEO));
break;
case PROP_AUDIO_FILTER:
g_value_take_object (value,
gst_play_sink_get_filter (playbin->playsink,
GST_PLAY_SINK_TYPE_AUDIO));
break;
case PROP_VIDEO_SINK:
g_value_take_object (value,
gst_play_bin3_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_bin3_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_bin3_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_bin3_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_bin3_get_current_stream_combiner (playbin,
&playbin->audio_stream_combiner, "audio", PLAYBIN_STREAM_AUDIO));
break;
case PROP_TEXT_STREAM_COMBINER:
g_value_take_object (value,
gst_play_bin3_get_current_stream_combiner (playbin,
&playbin->text_stream_combiner, "text", PLAYBIN_STREAM_TEXT));
break;
case PROP_VOLUME:
g_value_set_double (value, gst_play_sink_get_volume (playbin->playsink));
break;
case PROP_MUTE:
g_value_set_boolean (value, gst_play_sink_get_mute (playbin->playsink));
break;
case PROP_SAMPLE:
gst_value_take_sample (value,
gst_play_sink_get_last_sample (playbin->playsink));
break;
case PROP_FONT_DESC:
g_value_take_string (value,
gst_play_sink_get_font_desc (playbin->playsink));
break;
case PROP_CONNECTION_SPEED:
GST_PLAY_BIN3_LOCK (playbin);
g_value_set_uint64 (value, playbin->connection_speed / 1000);
GST_PLAY_BIN3_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_TEXT_OFFSET:
g_value_set_int64 (value,
gst_play_sink_get_text_offset (playbin->playsink));
break;
case PROP_RING_BUFFER_MAX_SIZE:
g_value_set_uint64 (value, playbin->ring_buffer_max_size);
break;
case PROP_FORCE_ASPECT_RATIO:{
gboolean v;
g_object_get (playbin->playsink, "force-aspect-ratio", &v, NULL);
g_value_set_boolean (value, v);
break;
}
case PROP_MULTIVIEW_MODE:
GST_OBJECT_LOCK (playbin);
g_value_set_enum (value, playbin->multiview_mode);
GST_OBJECT_UNLOCK (playbin);
break;
case PROP_MULTIVIEW_FLAGS:
GST_OBJECT_LOCK (playbin);
g_value_set_flags (value, playbin->multiview_flags);
GST_OBJECT_UNLOCK (playbin);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gint
get_combiner_stream_id (GstPlayBin3 * playbin, GstSourceCombine * combine,
GList * full_list)
{
gint i;
GList *tmp;
for (i = 0; i < combine->streams->len; i++) {
GstStream *stream = (GstStream *) g_ptr_array_index (combine->streams, i);
const gchar *sid = gst_stream_get_stream_id (stream);
for (tmp = full_list; tmp; tmp = tmp->next) {
gchar *orig = (gchar *) tmp->data;
if (!g_strcmp0 (orig, sid))
return i;
}
}
/* Fallback */
return -1;
}
static GList *
extend_list_of_streams (GstPlayBin3 * playbin, GstStreamType stype,
GList * list, GstStreamCollection * collection)
{
GList *tmp, *res;
gint i, nb;
res = list;
nb = gst_stream_collection_get_size (collection);
for (i = 0; i < nb; i++) {
GstStream *stream = gst_stream_collection_get_stream (collection, i);
GstStreamType curtype = gst_stream_get_stream_type (stream);
if (stype == curtype) {
gboolean already_there = FALSE;
const gchar *sid = gst_stream_get_stream_id (stream);
for (tmp = res; tmp; tmp = tmp->next) {
const gchar *other = (const gchar *) tmp->data;
if (!g_strcmp0 (sid, other)) {
already_there = TRUE;
break;
}
}
if (!already_there) {
GST_DEBUG_OBJECT (playbin, "Adding stream %s", sid);
res = g_list_append (res, g_strdup (sid));
}
}
}
return res;
}
static GstEvent *
update_select_streams_event (GstPlayBin3 * playbin, GstEvent * event,
GstSourceGroup * group)
{
GList *streams = NULL;
GList *to_use;
gint combine_id;
if (!playbin->audio_stream_combiner && !playbin->video_stream_combiner &&
!playbin->text_stream_combiner) {
/* Nothing to do */
GST_DEBUG_OBJECT (playbin,
"No custom combiners, no need to modify SELECT_STREAMS event");
return event;
}
if (!group->collection) {
GST_DEBUG_OBJECT (playbin,
"No stream collection for group, no need to modify SELECT_STREAMS event");
return event;
}
gst_event_parse_select_streams (event, &streams);
to_use = g_list_copy_deep (streams, (GCopyFunc) g_strdup, NULL);
/* For each combiner, we want to add all streams of that type to the
* selection */
if (playbin->audio_stream_combiner) {
to_use =
extend_list_of_streams (playbin, GST_STREAM_TYPE_AUDIO, to_use,
group->collection);
combine_id =
get_combiner_stream_id (playbin,
&playbin->combiner[PLAYBIN_STREAM_AUDIO], streams);
if (combine_id != -1)
gst_play_bin3_set_current_audio_stream (playbin, combine_id);
}
if (playbin->video_stream_combiner) {
to_use =
extend_list_of_streams (playbin, GST_STREAM_TYPE_VIDEO, to_use,
group->collection);
combine_id =
get_combiner_stream_id (playbin,
&playbin->combiner[PLAYBIN_STREAM_VIDEO], streams);
if (combine_id != -1)
gst_play_bin3_set_current_video_stream (playbin, combine_id);
}
if (playbin->text_stream_combiner) {
to_use =
extend_list_of_streams (playbin, GST_STREAM_TYPE_TEXT, to_use,
group->collection);
combine_id =
get_combiner_stream_id (playbin,
&playbin->combiner[PLAYBIN_STREAM_TEXT], streams);
if (combine_id != -1)
gst_play_bin3_set_current_text_stream (playbin, combine_id);
}
gst_event_unref (event);
event = gst_event_new_select_streams (to_use);
if (streams)
g_list_free_full (streams, g_free);
if (to_use)
g_list_free_full (to_use, g_free);
return event;
}
/* Returns TRUE if the given list of streams belongs to the stream collection */
static gboolean
gst_streams_belong_to_collection (GList * streams,
GstStreamCollection * collection)
{
GList *tmp;
guint i, nb;
if (streams == NULL || collection == NULL)
return FALSE;
nb = gst_stream_collection_get_size (collection);
if (nb == 0)
return FALSE;
for (tmp = streams; tmp; tmp = tmp->next) {
const gchar *cand = (const gchar *) tmp->data;
gboolean found = FALSE;
for (i = 0; i < nb; i++) {
GstStream *stream = gst_stream_collection_get_stream (collection, i);
if (!g_strcmp0 (cand, gst_stream_get_stream_id (stream))) {
found = TRUE;
break;
}
}
if (!found)
return FALSE;
}
return TRUE;
}
static GstSourceGroup *
get_source_group_for_streams (GstPlayBin3 * playbin, GstEvent * event)
{
GList *streams;
GstSourceGroup *res = NULL;
gst_event_parse_select_streams (event, &streams);
if (playbin->curr_group->collection &&
gst_streams_belong_to_collection (streams,
playbin->curr_group->collection))
res = playbin->curr_group;
else if (playbin->next_group->collection &&
gst_streams_belong_to_collection (streams,
playbin->next_group->collection))
res = playbin->next_group;
g_list_free_full (streams, g_free);
return res;
}
static GstStreamType
get_stream_type_for_event (GstStreamCollection * collection, GstEvent * event)
{
GList *stream_list = NULL;
GList *tmp;
GstStreamType res = 0;
guint i, len;
gst_event_parse_select_streams (event, &stream_list);
len = gst_stream_collection_get_size (collection);
for (tmp = stream_list; tmp; tmp = tmp->next) {
gchar *stid = (gchar *) tmp->data;
for (i = 0; i < len; i++) {
GstStream *stream = gst_stream_collection_get_stream (collection, i);
if (!g_strcmp0 (stid, gst_stream_get_stream_id (stream))) {
res |= gst_stream_get_stream_type (stream);
}
}
}
g_list_free_full (stream_list, g_free);
return res;
}
static gboolean
gst_play_bin3_send_event (GstElement * element, GstEvent * event)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (element);
if (GST_EVENT_TYPE (event) == GST_EVENT_SELECT_STREAMS) {
gboolean res;
GstSourceGroup *group;
GST_PLAY_BIN3_LOCK (playbin);
GST_LOG_OBJECT (playbin,
"App sent select-streams, we won't do anything ourselves now");
/* This is probably already false, but it doesn't hurt to be sure */
playbin->do_stream_selections = FALSE;
group = get_source_group_for_streams (playbin, event);
if (group == NULL) {
GST_WARNING_OBJECT (playbin,
"Can't figure out to which uridecodebin the select-streams event should be sent to");
GST_PLAY_BIN3_UNLOCK (playbin);
return FALSE;
}
/* If we have custom combiners, we need to extend the selection with
* the list of all streams for that given type since we will be handling
* the selection with that combiner */
event = update_select_streams_event (playbin, event, group);
if (group->collection) {
group->selected_stream_types =
get_stream_type_for_event (group->collection, event);
playbin->selected_stream_types =
playbin->groups[0].selected_stream_types | playbin->groups[1].
selected_stream_types;
if (playbin->active_stream_types != playbin->selected_stream_types)
reconfigure_output (playbin);
}
/* Send this event directly to uridecodebin, so it works even
* if uridecodebin didn't add any pads yet */
res = gst_element_send_event (group->uridecodebin, event);
GST_PLAY_BIN3_UNLOCK (playbin);
return res;
}
/* Send event directly to playsink instead of letting GstBin iterate
* over all sink elements. The latter might send the event multiple times
* in case the SEEK causes a reconfiguration of the pipeline, as can easily
* happen with adaptive streaming demuxers.
*
* What would then happen is that the iterator would be reset, we send the
* event again, and on the second time it will fail in the majority of cases
* because the pipeline is still being reconfigured
*/
if (GST_EVENT_IS_UPSTREAM (event)) {
return gst_element_send_event (GST_ELEMENT_CAST (playbin->playsink), event);
}
return GST_ELEMENT_CLASS (parent_class)->send_event (element, event);
}
/* Called with playbin lock held */
static void
do_stream_selection (GstPlayBin3 * playbin, GstSourceGroup * group)
{
GstStreamCollection *collection;
guint i, nb_streams;
GList *streams = NULL;
gint nb_video = 0, nb_audio = 0, nb_text = 0;
GstStreamType chosen_stream_types = 0;
if (group == NULL)
return;
collection = group->collection;
if (collection == NULL) {
GST_LOG_OBJECT (playbin, "No stream collection. Not doing stream-select");
return;
}
nb_streams = gst_stream_collection_get_size (collection);
if (nb_streams == 0) {
GST_INFO_OBJECT (playbin, "Empty collection received! Ignoring");
}
GST_DEBUG_OBJECT (playbin, "Doing selection on collection with %d streams",
nb_streams);
/* Iterate the collection and choose the streams that match
* either the current-* setting, or all streams of a type if there's
* a combiner for that type */
for (i = 0; i < nb_streams; i++) {
GstStream *stream = gst_stream_collection_get_stream (collection, i);
GstStreamType stream_type = gst_stream_get_stream_type (stream);
const gchar *stream_id = gst_stream_get_stream_id (stream);
gint pb_stream_type = -1;
gboolean select_this = FALSE;
GST_LOG_OBJECT (playbin, "Looking at stream #%d : %s", i, stream_id);
if (stream_type & GST_STREAM_TYPE_AUDIO) {
pb_stream_type = PLAYBIN_STREAM_AUDIO;
/* Select the stream if it's the current one or if there's a custom selector */
select_this =
(nb_audio == playbin->current_audio ||
(playbin->current_audio == -1 && nb_audio == 0) ||
playbin->audio_stream_combiner != NULL);
nb_audio++;
} else if (stream_type & GST_STREAM_TYPE_VIDEO) {
pb_stream_type = PLAYBIN_STREAM_VIDEO;
select_this =
(nb_video == playbin->current_video ||
(playbin->current_video == -1 && nb_video == 0) ||
playbin->video_stream_combiner != NULL);
nb_video++;
} else if (stream_type & GST_STREAM_TYPE_TEXT) {
pb_stream_type = PLAYBIN_STREAM_TEXT;
select_this =
(nb_text == playbin->current_text ||
(playbin->current_text == -1 && nb_text == 0) ||
playbin->text_stream_combiner != NULL);
nb_text++;
}
if (pb_stream_type < 0) {
GST_DEBUG_OBJECT (playbin,
"Stream %d (id %s) of unhandled type %s. Ignoring", i, stream_id,
gst_stream_type_get_name (stream_type));
continue;
}
if (select_this) {
GST_DEBUG_OBJECT (playbin, "Selecting stream %s of type %s",
stream_id, gst_stream_type_get_name (stream_type));
/* Don't build the list if we're not in charge of stream selection */
if (playbin->do_stream_selections)
streams = g_list_append (streams, (gpointer) stream_id);
chosen_stream_types |= stream_type;
}
}
if (streams) {
if (group->uridecodebin) {
GstEvent *ev = gst_event_new_select_streams (streams);
gst_element_send_event (group->uridecodebin, ev);
}
g_list_free (streams);
}
group->selected_stream_types = chosen_stream_types;
/* Update global selected_stream_types */
playbin->selected_stream_types =
playbin->groups[0].selected_stream_types | playbin->groups[1].
selected_stream_types;
if (playbin->active_stream_types != playbin->selected_stream_types)
reconfigure_output (playbin);
}
/* Return the GstSourceGroup to which this element belongs
* Can be NULL (if it belongs to playsink for example) */
static GstSourceGroup *
find_source_group_owner (GstPlayBin3 * playbin, GstObject * element)
{
if (playbin->curr_group->uridecodebin
&& gst_object_has_as_ancestor (element,
GST_OBJECT_CAST (playbin->curr_group->uridecodebin)))
return playbin->curr_group;
if (playbin->next_group->uridecodebin
&& gst_object_has_as_ancestor (element,
GST_OBJECT_CAST (playbin->next_group->uridecodebin)))
return playbin->next_group;
return NULL;
}
static void
gst_play_bin3_handle_message (GstBin * bin, GstMessage * msg)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (bin);
gboolean do_reset_time = FALSE;
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_STREAM_START) {
GstSourceGroup *group = NULL, *other_group = NULL;
gboolean changed = FALSE;
guint group_id;
GstMessage *buffering_msg;
if (!gst_message_parse_group_id (msg, &group_id)) {
GST_ERROR_OBJECT (bin,
"Could not get group_id from STREAM_START message !");
goto beach;
}
GST_DEBUG_OBJECT (bin, "STREAM_START group_id:%u", group_id);
/* Figure out to which group this group_id corresponds */
GST_PLAY_BIN3_LOCK (playbin);
if (playbin->groups[0].group_id == group_id) {
group = &playbin->groups[0];
other_group = &playbin->groups[1];
} else if (playbin->groups[1].group_id == group_id) {
group = &playbin->groups[1];
other_group = &playbin->groups[0];
}
if (group == NULL) {
GST_ERROR_OBJECT (bin, "group_id %u is not provided by any group !",
group_id);
GST_PLAY_BIN3_UNLOCK (playbin);
goto beach;
}
debug_groups (playbin);
/* Do the switch now ! */
playbin->curr_group = group;
playbin->next_group = other_group;
/* we may need to serialise a buffering
* message, and need to take that lock
* before any source group lock, so
* do that now */
g_mutex_lock (&playbin->buffering_post_lock);
GST_SOURCE_GROUP_LOCK (group);
if (group->playing == FALSE)
changed = TRUE;
group->playing = TRUE;
buffering_msg = group->pending_buffering_msg;
group->pending_buffering_msg = NULL;
GST_SOURCE_GROUP_UNLOCK (group);
GST_SOURCE_GROUP_LOCK (other_group);
other_group->playing = FALSE;
GST_SOURCE_GROUP_UNLOCK (other_group);
debug_groups (playbin);
GST_PLAY_BIN3_UNLOCK (playbin);
if (changed)
gst_play_bin3_check_group_status (playbin);
else
GST_DEBUG_OBJECT (bin, "Groups didn't changed");
/* If there was a pending buffering message to send, do it now */
if (buffering_msg)
GST_BIN_CLASS (parent_class)->handle_message (bin, buffering_msg);
g_mutex_unlock (&playbin->buffering_post_lock);
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_BUFFERING) {
GstSourceGroup *group;
/* Only post buffering messages for group which is currently playing */
GST_PLAY_BIN3_LOCK (playbin);
group = find_source_group_owner (playbin, msg->src);
if (group->active) {
g_mutex_lock (&playbin->buffering_post_lock);
GST_SOURCE_GROUP_LOCK (group);
GST_PLAY_BIN3_UNLOCK (playbin);
if (!group->playing) {
GST_DEBUG_OBJECT (playbin,
"Storing buffering message from pending group " "%p %"
GST_PTR_FORMAT, group, msg);
gst_message_replace (&group->pending_buffering_msg, msg);
gst_message_unref (msg);
msg = NULL;
} else {
/* Ensure there's no cached buffering message for this group */
gst_message_replace (&group->pending_buffering_msg, NULL);
}
GST_SOURCE_GROUP_UNLOCK (group);
if (msg != NULL) {
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
msg = NULL;
}
g_mutex_unlock (&playbin->buffering_post_lock);
} else {
GST_PLAY_BIN3_UNLOCK (playbin);
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_STREAM_COLLECTION) {
GstStreamCollection *collection = NULL;
gst_message_parse_stream_collection (msg, &collection);
if (collection) {
gboolean pstate = playbin->do_stream_selections;
GstSourceGroup *target_group = NULL;
GST_PLAY_BIN3_LOCK (playbin);
GST_DEBUG_OBJECT (playbin,
"STREAM_COLLECTION: Got a collection from %" GST_PTR_FORMAT,
msg->src);
target_group = find_source_group_owner (playbin, msg->src);
if (target_group)
gst_object_replace ((GstObject **) & target_group->collection,
(GstObject *) collection);
/* FIXME: Only do the following if it's the current group? */
if (target_group == playbin->curr_group)
update_combiner_info (playbin, target_group->collection);
if (pstate)
playbin->do_stream_selections = FALSE;
do_stream_selection (playbin, target_group);
if (pstate)
playbin->do_stream_selections = TRUE;
GST_PLAY_BIN3_UNLOCK (playbin);
gst_object_unref (collection);
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_RESET_TIME) {
if (playbin->is_live && GST_STATE_TARGET (playbin) == GST_STATE_PLAYING) {
do_reset_time = TRUE;
}
}
beach:
if (msg)
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
if (do_reset_time) {
/* If we are live, sample a new base_time immediately */
gst_element_change_state (GST_ELEMENT (playbin),
GST_STATE_CHANGE_PAUSED_TO_PLAYING);
}
}
static void
gst_play_bin3_deep_element_added (GstBin * playbin, GstBin * sub_bin,
GstElement * child)
{
GST_LOG_OBJECT (playbin, "element %" GST_PTR_FORMAT " was added to "
"%" GST_PTR_FORMAT, child, sub_bin);
g_signal_emit (playbin, gst_play_bin3_signals[SIGNAL_ELEMENT_SETUP], 0,
child);
GST_BIN_CLASS (parent_class)->deep_element_added (playbin, sub_bin, child);
}
/* Returns current stream number, or -1 if none has been selected yet */
static int
get_current_stream_number (GstPlayBin3 * 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 void
combiner_active_pad_changed (GObject * combiner, GParamSpec * pspec,
GstPlayBin3 * playbin)
{
GstSourceCombine *combine = NULL;
GPtrArray *channels = NULL;
int i;
GST_PLAY_BIN3_LOCK (playbin);
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
if (combiner == G_OBJECT (playbin->combiner[i].combiner)) {
combine = &playbin->combiner[i];
channels = playbin->channels[i];
}
}
/* We got a pad-change after our group got switched out; no need to notify */
if (!combine) {
GST_PLAY_BIN3_UNLOCK (playbin);
return;
}
switch (combine->type) {
case GST_PLAY_SINK_TYPE_VIDEO:
playbin->current_video = get_current_stream_number (playbin,
combine, channels);
if (playbin->video_pending_flush_finish) {
playbin->video_pending_flush_finish = FALSE;
GST_PLAY_BIN3_UNLOCK (playbin);
gst_play_bin3_send_custom_event (GST_OBJECT (combiner),
"playsink-custom-video-flush-finish");
}
break;
case GST_PLAY_SINK_TYPE_AUDIO:
playbin->current_audio = get_current_stream_number (playbin,
combine, channels);
if (playbin->audio_pending_flush_finish) {
playbin->audio_pending_flush_finish = FALSE;
GST_PLAY_BIN3_UNLOCK (playbin);
gst_play_bin3_send_custom_event (GST_OBJECT (combiner),
"playsink-custom-audio-flush-finish");
}
break;
case GST_PLAY_SINK_TYPE_TEXT:
playbin->current_text = get_current_stream_number (playbin,
combine, channels);
if (playbin->text_pending_flush_finish) {
playbin->text_pending_flush_finish = FALSE;
GST_PLAY_BIN3_UNLOCK (playbin);
gst_play_bin3_send_custom_event (GST_OBJECT (combiner),
"playsink-custom-subtitle-flush-finish");
}
break;
default:
break;
}
GST_PLAY_BIN3_UNLOCK (playbin);
}
static GstCaps *
update_video_multiview_caps (GstPlayBin3 * playbin, GstCaps * caps)
{
GstVideoMultiviewMode mv_mode;
GstVideoMultiviewMode cur_mv_mode;
guint mv_flags, cur_mv_flags;
GstStructure *s;
const gchar *mview_mode_str;
GstCaps *out_caps;
GST_OBJECT_LOCK (playbin);
mv_mode = (GstVideoMultiviewMode) playbin->multiview_mode;
mv_flags = playbin->multiview_flags;
GST_OBJECT_UNLOCK (playbin);
if (mv_mode == GST_VIDEO_MULTIVIEW_MODE_NONE)
return NULL;
cur_mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
cur_mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
s = gst_caps_get_structure (caps, 0);
gst_structure_get_flagset (s, "multiview-flags", &cur_mv_flags, NULL);
if ((mview_mode_str = gst_structure_get_string (s, "multiview-mode")))
cur_mv_mode = gst_video_multiview_mode_from_caps_string (mview_mode_str);
/* We can't override an existing annotated multiview mode, except
* maybe (in the future) we could change some flags. */
if ((gint) cur_mv_mode > GST_VIDEO_MULTIVIEW_MAX_FRAME_PACKING) {
GST_INFO_OBJECT (playbin, "Cannot override existing multiview mode");
return NULL;
}
mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
g_assert (mview_mode_str != NULL);
out_caps = gst_caps_copy (caps);
s = gst_caps_get_structure (out_caps, 0);
gst_structure_set (s, "multiview-mode", G_TYPE_STRING, mview_mode_str,
"multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
GST_FLAG_SET_MASK_EXACT, NULL);
return out_caps;
}
static void
emit_about_to_finish (GstPlayBin3 * playbin)
{
GST_DEBUG_OBJECT (playbin, "Emitting about-to-finish");
/* after this call, we should have a next group to activate or we EOS */
g_signal_emit (G_OBJECT (playbin),
gst_play_bin3_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
debug_groups (playbin);
/* 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);
}
static SourcePad *
find_source_pad (GstSourceGroup * group, GstPad * target)
{
GList *tmp;
for (tmp = group->source_pads; tmp; tmp = tmp->next) {
SourcePad *res = (SourcePad *) tmp->data;
if (res->pad == target)
return res;
}
return NULL;
}
static GstPadProbeReturn
_decodebin_event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer udata)
{
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
GstSourceGroup *group = (GstSourceGroup *) udata;
GstPlayBin3 *playbin = group->playbin;
GstEvent *event = GST_PAD_PROBE_INFO_DATA (info);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:{
GstCaps *caps = NULL;
const GstStructure *s;
const gchar *name;
gst_event_parse_caps (event, &caps);
/* If video caps, check if we should override multiview flags */
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
if (g_str_has_prefix (name, "video/")) {
caps = update_video_multiview_caps (playbin, caps);
if (caps) {
gst_event_unref (event);
event = gst_event_new_caps (caps);
GST_PAD_PROBE_INFO_DATA (info) = event;
gst_caps_unref (caps);
}
}
break;
}
case GST_EVENT_STREAM_START:
{
guint group_id;
if (gst_event_parse_group_id (event, &group_id)) {
GST_LOG_OBJECT (pad, "STREAM_START group_id:%u", group_id);
if (group->group_id == GST_GROUP_ID_INVALID)
group->group_id = group_id;
else if (group->group_id != group_id) {
GST_DEBUG_OBJECT (pad, "group_id changing from %u to %u",
group->group_id, group_id);
group->group_id = group_id;
}
}
break;
}
default:
break;
}
return ret;
}
static void
control_source_pad (GstSourceGroup * group, GstPad * pad,
GstStreamType stream_type)
{
SourcePad *sourcepad = g_slice_new0 (SourcePad);
sourcepad->pad = pad;
sourcepad->event_probe_id =
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
_decodebin_event_probe, group, NULL);
sourcepad->stream_type = stream_type;
group->source_pads = g_list_append (group->source_pads, sourcepad);
}
static void
remove_combiner (GstPlayBin3 * playbin, GstSourceCombine * combine)
{
gint n;
if (combine->combiner == NULL) {
GST_DEBUG_OBJECT (playbin, "No combiner element to remove");
return;
}
/* Go over all sink pads and release them ! */
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;
}
/* Create the combiner element if needed for the given combine */
static void
create_combiner (GstPlayBin3 * playbin, GstSourceCombine * combine)
{
GstElement *custom_combiner = NULL;
if (combine->combiner) {
GST_WARNING_OBJECT (playbin, "Combiner element already exists!");
return;
}
if (combine->stream_type == GST_STREAM_TYPE_VIDEO)
custom_combiner = playbin->video_stream_combiner;
else if (combine->stream_type == GST_STREAM_TYPE_AUDIO)
custom_combiner = playbin->audio_stream_combiner;
else if (combine->stream_type == GST_STREAM_TYPE_TEXT)
custom_combiner = playbin->text_stream_combiner;
combine->combiner = custom_combiner;
if (!combine->combiner) {
gchar *concat_name;
GST_DEBUG_OBJECT (playbin,
"No custom combiner requested, using 'concat' element");
concat_name = g_strdup_printf ("%s-concat", combine->media_type);
combine->combiner = gst_element_factory_make ("concat", concat_name);
g_object_set (combine->combiner, "adjust-base", FALSE, NULL);
g_free (concat_name);
combine->is_concat = TRUE;
}
combine->srcpad = gst_element_get_static_pad (combine->combiner, "src");
/* We only want to use 'active-pad' if it's a regular combiner that
* will consume all streams, and not concat (which is just used for
* gapless) */
if (!combine->is_concat) {
combine->has_active_pad =
g_object_class_find_property (G_OBJECT_GET_CLASS (combine->combiner),
"active-pad") != 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 %" GST_PTR_FORMAT,
combine->combiner);
gst_bin_add (GST_BIN_CAST (playbin), combine->combiner);
gst_element_sync_state_with_parent (combine->combiner);
}
static gboolean
combiner_control_pad (GstPlayBin3 * playbin, GstSourceCombine * combine,
GstPad * srcpad)
{
GstPadLinkReturn res;
GST_DEBUG_OBJECT (playbin, "srcpad %" GST_PTR_FORMAT, srcpad);
if (combine->combiner) {
GstPad *sinkpad =
gst_element_request_pad_simple (combine->combiner, "sink_%u");
if (sinkpad == NULL)
goto request_pad_failed;
GST_DEBUG_OBJECT (playbin, "Got new combiner pad %" GST_PTR_FORMAT,
sinkpad);
/* store the pad in the array */
GST_DEBUG_OBJECT (playbin, "pad %" GST_PTR_FORMAT " added to array",
sinkpad);
g_ptr_array_add (combine->channels, sinkpad);
res = gst_pad_link (srcpad, sinkpad);
if (GST_PAD_LINK_FAILED (res))
goto failed_combiner_link;
GST_DEBUG_OBJECT (playbin,
"linked pad %" GST_PTR_FORMAT " to combiner %" GST_PTR_FORMAT, srcpad,
combine->combiner);
} else {
GST_LOG_OBJECT (playbin, "combine->sinkpad:%" GST_PTR_FORMAT,
combine->sinkpad);
g_assert (combine->sinkpad != NULL);
/* Connect directly to playsink */
if (gst_pad_is_linked (combine->sinkpad))
goto sinkpad_already_linked;
GST_DEBUG_OBJECT (playbin, "Linking new pad straight to playsink");
res = gst_pad_link (srcpad, combine->sinkpad);
if (res != GST_PAD_LINK_OK)
goto failed_sinkpad_link;
}
return TRUE;
/* Failure cases */
request_pad_failed:
GST_ELEMENT_ERROR (playbin, CORE, PAD,
("Internal playbin error."),
("Failed to get request pad from combiner %p.", combine->combiner));
return FALSE;
sinkpad_already_linked:
GST_ELEMENT_ERROR (playbin, CORE, PAD,
("Internal playbin error."), ("playsink pad already used !"));
return FALSE;
failed_sinkpad_link:
GST_ELEMENT_ERROR (playbin, CORE, PAD,
("Internal playbin error."),
("Failed to link pad to sink. Error %d", res));
return FALSE;
failed_combiner_link:
GST_ELEMENT_ERROR (playbin, CORE, PAD,
("Internal playbin error."),
("Failed to link pad to combiner. Error %d", res));
return FALSE;
}
static void
combiner_release_pad (GstPlayBin3 * playbin, GstSourceCombine * combine,
GstPad * pad)
{
if (combine->combiner) {
GstPad *peer = gst_pad_get_peer (pad);
if (peer) {
GST_DEBUG_OBJECT (playbin, "Removing combiner pad %" GST_PTR_FORMAT,
peer);
g_ptr_array_remove (combine->channels, peer);
gst_element_release_request_pad (combine->combiner, peer);
gst_object_unref (peer);
}
} else {
/* Release direct link if present */
if (combine->sinkpad) {
GST_DEBUG_OBJECT (playbin, "Unlinking pad from playsink sinkpad");
gst_pad_unlink (pad, combine->sinkpad);
}
}
}
/* Call after pad was unlinked from (potential) combiner */
static void
release_source_pad (GstPlayBin3 * playbin, GstSourceGroup * group, GstPad * pad)
{
SourcePad *sourcepad;
GList *tmp;
GstStreamType alltype = 0;
sourcepad = find_source_pad (group, pad);
if (!sourcepad) {
GST_DEBUG_OBJECT (playbin, "Not a pad controlled by us ?");
return;
}
if (sourcepad->event_probe_id) {
gst_pad_remove_probe (pad, sourcepad->event_probe_id);
sourcepad->event_probe_id = 0;
}
/* Remove from list of controlled pads and check again for EOS status */
group->source_pads = g_list_remove (group->source_pads, sourcepad);
g_slice_free (SourcePad, sourcepad);
/* Update present stream types */
for (tmp = group->source_pads; tmp; tmp = tmp->next) {
SourcePad *cand = (SourcePad *) tmp->data;
alltype |= cand->stream_type;
}
group->present_stream_types = alltype;
}
/* 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
*/
static void
pad_added_cb (GstElement * uridecodebin, GstPad * pad, GstSourceGroup * group)
{
GstSourceCombine *combine = NULL;
gint pb_stream_type = -1;
gchar *pad_name;
GstPlayBin3 *playbin = group->playbin;
GST_PLAY_BIN3_SHUTDOWN_LOCK (playbin, shutdown);
pad_name = gst_object_get_name (GST_OBJECT (pad));
GST_DEBUG_OBJECT (playbin, "decoded pad %s:%s added",
GST_DEBUG_PAD_NAME (pad));
/* major type of the pad, this determines the combiner to use,
try exact match first */
if (g_str_has_prefix (pad_name, "video")) {
pb_stream_type = PLAYBIN_STREAM_VIDEO;
} else if (g_str_has_prefix (pad_name, "audio")) {
pb_stream_type = PLAYBIN_STREAM_AUDIO;
} else if (g_str_has_prefix (pad_name, "text")) {
pb_stream_type = PLAYBIN_STREAM_TEXT;
}
g_free (pad_name);
/* no stream type found for the media type, don't bother linking it to a
* combiner. This will leave the pad unlinked and thus ignored. */
if (pb_stream_type < 0) {
GST_PLAY_BIN3_SHUTDOWN_UNLOCK (playbin);
goto unknown_type;
}
combine = &playbin->combiner[pb_stream_type];
combiner_control_pad (playbin, combine, pad);
control_source_pad (group, pad, combine->stream_type);
/* Update present stream_types and check whether we should post a pending about-to-finish */
group->present_stream_types |= combine->stream_type;
if (group->playing && group->pending_about_to_finish
&& group->present_stream_types == group->selected_stream_types) {
group->pending_about_to_finish = FALSE;
emit_about_to_finish (playbin);
}
GST_PLAY_BIN3_SHUTDOWN_UNLOCK (playbin);
return;
/* ERRORS */
unknown_type:
GST_DEBUG_OBJECT (playbin, "Ignoring pad with unknown type");
return;
shutdown:
{
GST_DEBUG ("ignoring, we are shutting down. Pad will be left unlinked");
/* not going to done as we didn't request the caps */
return;
}
}
/* called when a pad is removed from the decodebin. We unlink the pad from
* the combiner. */
static void
pad_removed_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
{
GstSourceCombine *combine;
GstPlayBin3 *playbin = group->playbin;
GST_DEBUG_OBJECT (playbin,
"decoded pad %s:%s removed", GST_DEBUG_PAD_NAME (pad));
GST_PLAY_BIN3_LOCK (playbin);
/* Get combiner for pad */
if (g_str_has_prefix (GST_PAD_NAME (pad), "video"))
combine = &playbin->combiner[PLAYBIN_STREAM_VIDEO];
else if (g_str_has_prefix (GST_PAD_NAME (pad), "audio"))
combine = &playbin->combiner[PLAYBIN_STREAM_AUDIO];
else if (g_str_has_prefix (GST_PAD_NAME (pad), "text"))
combine = &playbin->combiner[PLAYBIN_STREAM_TEXT];
else
return;
combiner_release_pad (playbin, combine, pad);
release_source_pad (playbin, group, pad);
GST_PLAY_BIN3_UNLOCK (playbin);
}
static gint
select_stream_cb (GstElement * decodebin, GstStreamCollection * collection,
GstStream * stream, GstSourceGroup * group)
{
GstStreamType stype = gst_stream_get_stream_type (stream);
GstElement *combiner = NULL;
GstPlayBin3 *playbin = group->playbin;
if (stype & GST_STREAM_TYPE_AUDIO)
combiner = playbin->audio_stream_combiner;
else if (stype & GST_STREAM_TYPE_VIDEO)
combiner = playbin->video_stream_combiner;
else if (stype & GST_STREAM_TYPE_TEXT)
combiner = playbin->text_stream_combiner;
if (combiner) {
GST_DEBUG_OBJECT (playbin, "Got a combiner, requesting stream activation");
return 1;
}
/* Let decodebin3 decide otherwise */
return -1;
}
/* We get called when the selected stream types change and
* reconfiguration of output (i.e. playsink and potential combiners)
* are required.
*/
static void
reconfigure_output (GstPlayBin3 * playbin)
{
GstPadLinkReturn res;
gint i;
g_assert (playbin->selected_stream_types != playbin->active_stream_types);
GST_DEBUG_OBJECT (playbin, "selected_stream_types : %" STREAM_TYPES_FORMAT,
STREAM_TYPES_ARGS (playbin->selected_stream_types));
GST_DEBUG_OBJECT (playbin, "active_stream_types : %" STREAM_TYPES_FORMAT,
STREAM_TYPES_ARGS (playbin->active_stream_types));
GST_PLAY_BIN3_LOCK (playbin);
/* Make sure combiners/playsink are in sync with selected stream types */
for (i = 0; i < PLAYBIN_STREAM_LAST; i++) {
GstSourceCombine *combine = &playbin->combiner[i];
gboolean is_selected =
(combine->stream_type & playbin->selected_stream_types) ==
combine->stream_type;
gboolean is_active =
(combine->stream_type & playbin->active_stream_types) ==
combine->stream_type;
GST_DEBUG_OBJECT (playbin, "Stream type status: '%s' %s %s",
combine->media_type, is_selected ? "selected" : "NOT selected",
is_active ? "active" : "NOT active");
/* FIXME : Remove asserts below once enough testing has been done */
if (is_selected && is_active) {
GST_DEBUG_OBJECT (playbin, "Stream type '%s' already active",
combine->media_type);
} else if (is_active && !is_selected) {
GST_DEBUG_OBJECT (playbin, "Stream type '%s' is no longer requested",
combine->media_type);
/* Unlink combiner from sink */
if (combine->srcpad) {
GST_LOG_OBJECT (playbin, "Unlinking from sink");
if (combine->sinkpad)
gst_pad_unlink (combine->srcpad, combine->sinkpad);
gst_object_unref (combine->srcpad);
combine->srcpad = NULL;
}
if (combine->sinkpad) {
/* Release playsink sink pad */
GST_LOG_OBJECT (playbin, "Releasing playsink pad");
gst_play_sink_release_pad (playbin->playsink, combine->sinkpad);
gst_object_unref (combine->sinkpad);
combine->sinkpad = NULL;
}
/* Release combiner */
GST_FIXME_OBJECT (playbin, "Release combiner");
remove_combiner (playbin, combine);
} else if (!is_active && is_selected) {
GST_DEBUG_OBJECT (playbin, "Stream type '%s' is now requested",
combine->media_type);
/* If we are shutting down, do *not* add more combiners */
if (g_atomic_int_get (&playbin->shutdown))
continue;
g_assert (combine->sinkpad == NULL);
/* Request playsink sink pad */
combine->sinkpad =
gst_play_sink_request_pad (playbin->playsink, combine->type);
gst_object_ref (combine->sinkpad);
/* Create combiner if needed and link it */
create_combiner (playbin, combine);
if (combine->combiner) {
res = gst_pad_link (combine->srcpad, combine->sinkpad);
GST_DEBUG_OBJECT (playbin, "linked type %s, result: %d",
combine->media_type, 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));
}
}
}
}
playbin->active_stream_types = playbin->selected_stream_types;
GST_PLAY_BIN3_UNLOCK (playbin);
gst_play_sink_reconfigure (playbin->playsink);
do_async_done (playbin);
GST_DEBUG_OBJECT (playbin, "selected_stream_types : %" STREAM_TYPES_FORMAT,
STREAM_TYPES_ARGS (playbin->selected_stream_types));
GST_DEBUG_OBJECT (playbin, "active_stream_types : %" STREAM_TYPES_FORMAT,
STREAM_TYPES_ARGS (playbin->active_stream_types));
return;
}
static void
about_to_finish_cb (GstElement * uridecodebin, GstSourceGroup * group)
{
GstPlayBin3 *playbin = group->playbin;
GST_DEBUG_OBJECT (playbin, "about to finish in group %p", group);
GST_LOG_OBJECT (playbin, "selected_stream_types:%" STREAM_TYPES_FORMAT,
STREAM_TYPES_ARGS (group->selected_stream_types));
GST_LOG_OBJECT (playbin, "present_stream_types:%" STREAM_TYPES_FORMAT,
STREAM_TYPES_ARGS (group->present_stream_types));
if (group->selected_stream_types == 0
|| (group->selected_stream_types != group->present_stream_types)) {
GST_LOG_OBJECT (playbin,
"Delaying emission of signal until this group is ready");
group->pending_about_to_finish = TRUE;
} else
emit_about_to_finish (playbin);
}
#if 0 /* AUTOPLUG DISABLED */
/* 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 = (gint64) gst_plugin_feature_get_rank (fd1) *
gst_plugin_feature_get_rank (fs1);
v2_rank = (gint64) gst_plugin_feature_get_rank (fd2) *
gst_plugin_feature_get_rank (fs2);
} else {
v1_rank = gst_plugin_feature_get_rank (fd1);
v2_rank = gst_plugin_feature_get_rank (fd2);
fs1 = fs2 = NULL;
}
/* comparison based on the rank */
diff = v2_rank - v1_rank;
if (diff < 0)
return -1;
else if (diff > 0)
return 1;
/* comparison based on number of common caps features */
diff = v2->n_comm_cf - v1->n_comm_cf;
if (diff != 0)
return diff;
if (fs1 && fs2) {
/* comparison based on the name of sink elements */
diff = strcmp (GST_OBJECT_NAME (fs1), GST_OBJECT_NAME (fs2));
if (diff != 0)
return diff;
}
/* comparison based on the name of decoder elements */
return strcmp (GST_OBJECT_NAME (fd1), GST_OBJECT_NAME (fd2));
}
static GSequence *
avelements_create (GstPlayBin3 * playbin, gboolean isaudioelement)
{
GstElementFactory *d_factory, *s_factory;
GList *dec_list, *sink_list, *dl, *sl;
GSequence *ave_seq = NULL;
GstAVElement *ave;
guint n_common_cf = 0;
if (isaudioelement) {
sink_list = gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_SINK |
GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL);
dec_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECODER
| GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL);
} else {
sink_list = gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_SINK |
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_MARGINAL);
dec_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECODER
| GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_MARGINAL);
}
/* create a list of audio/video elements. Each element in the list
* is holding an audio/video decoder and an audio/video sink in which
* the decoders srcpad template caps and sink element's sinkpad template
* caps are compatible */
dl = dec_list;
sl = sink_list;
ave_seq = g_sequence_new ((GDestroyNotify) avelements_free);
for (; dl; dl = dl->next) {
d_factory = (GstElementFactory *) dl->data;
for (; sl; sl = sl->next) {
s_factory = (GstElementFactory *) sl->data;
n_common_cf =
gst_playback_utils_get_n_common_capsfeatures (d_factory, s_factory,
gst_play_bin3_get_flags (playbin), isaudioelement);
if (n_common_cf < 1)
continue;
ave = g_slice_new (GstAVElement);
ave->dec = gst_object_ref (d_factory);
ave->sink = gst_object_ref (s_factory);
ave->n_comm_cf = n_common_cf;
g_sequence_append (ave_seq, ave);
}
sl = sink_list;
}
g_sequence_sort (ave_seq, (GCompareDataFunc) avelement_compare_decoder, NULL);
gst_plugin_feature_list_free (dec_list);
gst_plugin_feature_list_free (sink_list);
return ave_seq;
}
static gboolean
avelement_iter_is_equal (GSequenceIter * iter, GstElementFactory * factory)
{
GstAVElement *ave;
if (!iter)
return FALSE;
ave = g_sequence_get (iter);
if (!ave)
return FALSE;
return strcmp (GST_OBJECT_NAME (ave->dec), GST_OBJECT_NAME (factory)) == 0;
}
static GList *
create_decoders_list (GList * factory_list, GSequence * avelements)
{
GList *dec_list = NULL, *tmp;
GList *ave_list = NULL;
GList *ave_free_list = NULL;
GstAVElement *ave, *best_ave;
g_return_val_if_fail (factory_list != NULL, NULL);
g_return_val_if_fail (avelements != NULL, NULL);
for (tmp = factory_list; tmp; tmp = tmp->next) {
GstElementFactory *factory = (GstElementFactory *) tmp->data;
/* if there are parsers or sink elements, add them first */
if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_PARSER) ||
gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_SINK)) {
dec_list = g_list_prepend (dec_list, gst_object_ref (factory));
} else {
GSequenceIter *seq_iter;
seq_iter =
g_sequence_lookup (avelements, factory,
(GCompareDataFunc) avelement_lookup_decoder, NULL);
if (!seq_iter) {
GstAVElement *ave = g_slice_new0 (GstAVElement);
ave->dec = factory;
ave->sink = NULL;
/* There's at least raw */
ave->n_comm_cf = 1;
ave_list = g_list_prepend (ave_list, ave);
/* We need to free these later */
ave_free_list = g_list_prepend (ave_free_list, ave);
continue;
}
/* Go to first iter with that decoder */
do {
GSequenceIter *tmp_seq_iter;
tmp_seq_iter = g_sequence_iter_prev (seq_iter);
if (!avelement_iter_is_equal (tmp_seq_iter, factory))
break;
seq_iter = tmp_seq_iter;
} while (!g_sequence_iter_is_begin (seq_iter));
/* Get the best ranked GstAVElement for that factory */
best_ave = NULL;
while (!g_sequence_iter_is_end (seq_iter)
&& avelement_iter_is_equal (seq_iter, factory)) {
ave = g_sequence_get (seq_iter);
if (!best_ave || avelement_compare (ave, best_ave) < 0)
best_ave = ave;
seq_iter = g_sequence_iter_next (seq_iter);
}
ave_list = g_list_prepend (ave_list, best_ave);
}
}
/* Sort all GstAVElements by their relative ranks and insert
* into the decoders list */
ave_list = g_list_sort (ave_list, (GCompareFunc) avelement_compare);
for (tmp = ave_list; tmp; tmp = tmp->next) {
ave = (GstAVElement *) tmp->data;
dec_list = g_list_prepend (dec_list, gst_object_ref (ave->dec));
}
g_list_free (ave_list);
gst_plugin_feature_list_free (factory_list);
for (tmp = ave_free_list; tmp; tmp = tmp->next)
g_slice_free (GstAVElement, tmp->data);
g_list_free (ave_free_list);
dec_list = g_list_reverse (dec_list);
return dec_list;
}
/* Called when we must provide a list of factories to plug to @pad with @caps.
* We first check if we have a sink that can handle the format and if we do, we
* return NULL, to expose the pad. If we have no sink (or the sink does not
* work), we return the list of elements that can connect. */
static GValueArray *
autoplug_factories_cb (GstElement * decodebin, GstPad * pad,
GstCaps * caps, GstSourceGroup * group)
{
GstPlayBin3 *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_bin3_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;
}
#endif
static GstBusSyncReply
activate_sink_bus_handler (GstBus * bus, GstMessage * msg,
GstPlayBin3 * playbin)
{
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
/* Only proxy errors from a fixed sink. If that fails we can just error out
* early as stuff will fail later anyway */
if (playbin->audio_sink
&& gst_object_has_as_ancestor (GST_MESSAGE_SRC (msg),
GST_OBJECT_CAST (playbin->audio_sink)))
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
else if (playbin->video_sink
&& gst_object_has_as_ancestor (GST_MESSAGE_SRC (msg),
GST_OBJECT_CAST (playbin->video_sink)))
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
else if (playbin->text_sink
&& gst_object_has_as_ancestor (GST_MESSAGE_SRC (msg),
GST_OBJECT_CAST (playbin->text_sink)))
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
else
gst_message_unref (msg);
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_HAVE_CONTEXT) {
GstContext *context;
gst_message_parse_have_context (msg, &context);
gst_element_set_context (GST_ELEMENT_CAST (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 (GstPlayBin3 * 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;
}
#if 0 /* AUTOPLUG DISABLED */
/* autoplug-continue decides, if a pad has raw caps that can be exposed
* directly or if further decoding is necessary. We use this to expose
* supported subtitles directly */
/* FIXME 0.11: Remove the checks for ANY caps, a sink should specify
* explicitly the caps it supports and if it claims to support ANY
* caps it really should support everything */
static gboolean
autoplug_continue_cb (GstElement * element, GstPad * pad, GstCaps * caps,
GstSourceGroup * group)
{
gboolean ret = TRUE;
GstPad *sinkpad = NULL;
gboolean activated_sink;
GST_SOURCE_GROUP_LOCK (group);
if (group->text_sink &&
activate_sink (group->playbin, group->text_sink, &activated_sink)) {
sinkpad = gst_element_get_static_pad (group->text_sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
if (activated_sink)
gst_element_set_state (group->text_sink, GST_STATE_NULL);
} else {
GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps ();
ret = !gst_caps_is_subset (caps, subcaps);
gst_caps_unref (subcaps);
}
/* If autoplugging can stop don't do additional checks */
if (!ret)
goto done;
if (group->audio_sink &&
activate_sink (group->playbin, group->audio_sink, &activated_sink)) {
sinkpad = gst_element_get_static_pad (group->audio_sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
if (activated_sink)
gst_element_set_state (group->audio_sink, GST_STATE_NULL);
}
if (!ret)
goto done;
if (group->video_sink
&& activate_sink (group->playbin, group->video_sink, &activated_sink)) {
sinkpad = gst_element_get_static_pad (group->video_sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, NULL);
if (!gst_caps_is_any (sinkcaps))
ret = !gst_pad_query_accept_caps (sinkpad, caps);
gst_caps_unref (sinkcaps);
gst_object_unref (sinkpad);
}
if (activated_sink)
gst_element_set_state (group->video_sink, GST_STATE_NULL);
}
done:
GST_SOURCE_GROUP_UNLOCK (group);
GST_DEBUG_OBJECT (group->playbin,
"continue autoplugging group %p for %s:%s, %" GST_PTR_FORMAT ": %d",
group, GST_DEBUG_PAD_NAME (pad), caps, ret);
return ret;
}
static gboolean
sink_accepts_caps (GstPlayBin3 * 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)
{
GstPlayBin3 *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_bin3_get_flags (playbin);
GstCaps *raw_caps =
(isaudiodec) ? gst_static_caps_get (&raw_audio_caps) :
gst_static_caps_get (&raw_video_caps);
caps = gst_pad_query_caps (sinkpad, NULL);
/* If the sink supports raw audio/video, we first check
* if the decoder could output any raw audio/video format
* and assume it is compatible with the sink then. We don't
* do a complete compatibility check here if converters
* are plugged between the decoder and the sink because
* the converters will convert between raw formats and
* even if the decoder format is not supported by the decoder
* a converter will convert it.
*
* We assume here that the converters can convert between
* any raw format.
*/
if ((isaudiodec && !(flags & GST_PLAY_FLAG_NATIVE_AUDIO)
&& gst_caps_can_intersect (caps, raw_caps)) || (!isaudiodec
&& !(flags & GST_PLAY_FLAG_NATIVE_VIDEO)
&& gst_caps_can_intersect (caps, raw_caps))) {
compatible =
gst_element_factory_can_src_any_caps (factory, raw_caps)
|| gst_element_factory_can_src_any_caps (factory, caps);
} else {
compatible = gst_element_factory_can_src_any_caps (factory, caps);
}
gst_object_unref (sinkpad);
gst_caps_unref (caps);
}
if (compatible)
break;
GST_DEBUG_OBJECT (playbin, "%s not compatible with the fixed sink",
GST_OBJECT_NAME (factory));
/* If it is not compatible, either continue with the next possible
* sink or if we have a fixed sink, skip the decoder */
if (created_sink) {
gst_element_set_state (*sinkp, GST_STATE_NULL);
gst_object_unref (*sinkp);
*sinkp = NULL;
} else {
g_mutex_unlock (&playbin->elements_lock);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
}
}
g_list_free (ave_list);
g_mutex_unlock (&playbin->elements_lock);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_TRY;
}
/* it's a sink, see if an instance of it actually works */
GST_DEBUG_OBJECT (playbin, "we found a sink '%s'", GST_OBJECT_NAME (factory));
klass =
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS);
/* figure out the klass */
if (strstr (klass, "Audio")) {
GST_DEBUG_OBJECT (playbin, "we found an audio sink");
type = GST_PLAY_SINK_TYPE_AUDIO;
sinkp = &group->audio_sink;
} else if (strstr (klass, "Video")) {
GST_DEBUG_OBJECT (playbin, "we found a video sink");
type = GST_PLAY_SINK_TYPE_VIDEO;
sinkp = &group->video_sink;
} else {
/* unknown klass, skip this element */
GST_WARNING_OBJECT (playbin, "unknown sink klass %s found", klass);
return GST_AUTOPLUG_SELECT_SKIP;
}
/* if we are asked to do visualisations and it's an audio sink, skip the
* element. We can only do visualisations with raw sinks */
if (gst_play_sink_get_flags (playbin->playsink) & GST_PLAY_FLAG_VIS) {
if (type == GST_PLAY_SINK_TYPE_AUDIO) {
GST_DEBUG_OBJECT (playbin, "skip audio sink because of vis");
return GST_AUTOPLUG_SELECT_SKIP;
}
}
/* now see if we already have a sink element */
GST_SOURCE_GROUP_LOCK (group);
if (*sinkp && GST_STATE (*sinkp) >= GST_STATE_READY) {
GstElement *sink = gst_object_ref (*sinkp);
if (sink_accepts_caps (playbin, sink, caps)) {
GST_DEBUG_OBJECT (playbin,
"Existing sink '%s' accepts caps: %" GST_PTR_FORMAT,
GST_ELEMENT_NAME (sink), caps);
gst_object_unref (sink);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_EXPOSE;
} else {
GST_DEBUG_OBJECT (playbin,
"Existing sink '%s' does not accept caps: %" GST_PTR_FORMAT,
GST_ELEMENT_NAME (sink), caps);
gst_object_unref (sink);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
}
GST_DEBUG_OBJECT (playbin, "we have no pending sink, try to create '%s'",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
if ((*sinkp = gst_element_factory_create (factory, NULL)) == NULL) {
GST_WARNING_OBJECT (playbin, "Could not create an element from %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
element = *sinkp;
if (!activate_sink (playbin, element, NULL)) {
GST_WARNING_OBJECT (playbin, "Could not activate sink %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
*sinkp = NULL;
gst_object_unref (element);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
/* Check if the selected sink actually supports the
* caps and can be set to READY*/
if (!sink_accepts_caps (playbin, element, caps)) {
*sinkp = NULL;
gst_element_set_state (element, GST_STATE_NULL);
gst_object_unref (element);
GST_SOURCE_GROUP_UNLOCK (group);
return GST_AUTOPLUG_SELECT_SKIP;
}
/* remember the sink in the group now, the element is floating, we take
* ownership now
*
* store the sink in the group, we will configure it later when we
* reconfigure the sink */
GST_DEBUG_OBJECT (playbin, "remember sink");
gst_object_ref_sink (element);
GST_SOURCE_GROUP_UNLOCK (group);
/* tell decodebin to expose the pad because we are going to use this
* sink */
GST_DEBUG_OBJECT (playbin, "we found a working sink, expose pad");
return GST_AUTOPLUG_SELECT_EXPOSE;
}
#define GST_PLAY_BIN3_FILTER_CAPS(filter,caps) G_STMT_START { \
if ((filter)) { \
GstCaps *intersection = \
gst_caps_intersect_full ((filter), (caps), GST_CAPS_INTERSECT_FIRST); \
gst_caps_unref ((caps)); \
(caps) = intersection; \
} \
} G_STMT_END
static gboolean
autoplug_query_caps (GstElement * uridecodebin, GstPad * pad,
GstElement * element, GstQuery * query, GstSourceGroup * group)
{
GstCaps *filter, *result = NULL;
GstElement *sink;
GstPad *sinkpad = NULL;
GstElementFactory *factory;
GstElementFactoryListType factory_type;
gboolean have_sink = FALSE;
GST_SOURCE_GROUP_LOCK (group);
gst_query_parse_caps (query, &filter);
factory = gst_element_get_factory (element);
if (!factory)
goto done;
if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) {
factory_type =
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE;
if ((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 ((sink = group->audio_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, filter);
if (!gst_caps_is_any (sinkcaps)) {
if (!result)
result = sinkcaps;
else
result = gst_caps_merge (result, sinkcaps);
} else {
gst_caps_unref (sinkcaps);
}
gst_object_unref (sinkpad);
}
have_sink = TRUE;
}
} else if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE)) {
factory_type = GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE;
if ((sink = group->playbin->text_sink)) {
sinkpad = gst_element_get_static_pad (sink, "sink");
if (sinkpad) {
GstCaps *sinkcaps;
sinkcaps = gst_pad_query_caps (sinkpad, filter);
if (!gst_caps_is_any (sinkcaps)) {
if (!result)
result = sinkcaps;
else
result = gst_caps_merge (result, sinkcaps);
} else {
gst_caps_unref (sinkcaps);
}
gst_object_unref (sinkpad);
}
have_sink = TRUE;
} else {
GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps ();
GST_PLAY_BIN3_FILTER_CAPS (filter, subcaps);
if (!result)
result = subcaps;
else
result = gst_caps_merge (result, subcaps);
}
} else {
goto done;
}
if (!have_sink) {
GValueArray *factories;
gint i, n;
factories = autoplug_factories_cb (uridecodebin, pad, NULL, group);
n = factories->n_values;
for (i = 0; i < n; i++) {
GValue *v = g_value_array_get_nth (factories, i);
GstElementFactory *f = g_value_get_object (v);
const GList *templates;
const GList *l;
GstCaps *templ_caps;
if (!gst_element_factory_list_is_type (f, factory_type))
continue;
templates = gst_element_factory_get_static_pad_templates (f);
for (l = templates; l; l = l->next) {
templ_caps = gst_static_pad_template_get_caps (l->data);
if (!gst_caps_is_any (templ_caps)) {
GST_PLAY_BIN3_FILTER_CAPS (filter, templ_caps);
if (!result)
result = templ_caps;
else
result = gst_caps_merge (result, templ_caps);
} else {
gst_caps_unref (templ_caps);
}
}
}
g_value_array_free (factories);
}
done:
GST_SOURCE_GROUP_UNLOCK (group);
if (!result)
return FALSE;
/* Add the actual decoder/parser/etc caps at the very end to
* make sure we don't cause empty caps to be returned, e.g.
* if a parser asks us but a decoder is required after it
* because no sink can handle the format directly.
*/
{
GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target) {
GstCaps *target_caps = gst_pad_get_pad_template_caps (target);
GST_PLAY_BIN3_FILTER_CAPS (filter, target_caps);
if (!gst_caps_is_any (target_caps))
result = gst_caps_merge (result, target_caps);
gst_object_unref (target);
}
}
gst_query_set_caps_result (query, result);
gst_caps_unref (result);
return TRUE;
}
static gboolean
autoplug_query_context (GstElement * uridecodebin, GstPad * pad,
GstElement * element, GstQuery * query, GstSourceGroup * group)
{
GstElement *sink;
GstPad *sinkpad = NULL;
GstElementFactory *factory;
gboolean res = FALSE;
GST_SOURCE_GROUP_LOCK (group);
factory = gst_element_get_factory (element);
if (!factory)
goto done;
if (gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) {
if ((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 ((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;
}
}
#endif
/* must be called with the group lock */
static gboolean
group_set_locked_state_unlocked (GstPlayBin3 * 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);
return TRUE;
}
static gboolean
make_or_reuse_element (GstPlayBin3 * playbin, const gchar * name,
GstElement ** elem)
{
if (*elem) {
GST_DEBUG_OBJECT (playbin, "reusing existing %s", name);
gst_element_set_state (*elem, 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 we added a non-floating ref when removing it from the
* bin earlier */
} else {
GstElement *new_elem;
GST_DEBUG_OBJECT (playbin, "making new %s", name);
new_elem = gst_element_factory_make (name, NULL);
if (!new_elem)
return FALSE;
*elem = gst_object_ref (new_elem);
}
if (GST_OBJECT_PARENT (*elem) != GST_OBJECT_CAST (playbin))
gst_bin_add (GST_BIN_CAST (playbin), *elem);
return TRUE;
}
static void
source_setup_cb (GstElement * element, GstElement * source,
GstSourceGroup * group)
{
g_signal_emit (group->playbin, gst_play_bin3_signals[SIGNAL_SOURCE_SETUP], 0,
source);
}
/* must be called with PLAY_BIN_LOCK */
static GstStateChangeReturn
activate_group (GstPlayBin3 * playbin, GstSourceGroup * group)
{
GstElement *uridecodebin = NULL;
GstPlayFlags flags;
gboolean audio_sink_activated = FALSE;
gboolean video_sink_activated = FALSE;
gboolean text_sink_activated = FALSE;
GstStateChangeReturn state_ret;
g_return_val_if_fail (group->valid, GST_STATE_CHANGE_FAILURE);
g_return_val_if_fail (!group->active, GST_STATE_CHANGE_FAILURE);
GST_DEBUG_OBJECT (playbin, "activating group %p", group);
GST_SOURCE_GROUP_LOCK (group);
/* First set up the custom sinks */
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;
}
}
}
if (!make_or_reuse_element (playbin, "uridecodebin3", &group->uridecodebin))
goto no_uridecodebin;
uridecodebin = group->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);
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->select_stream_id = g_signal_connect (uridecodebin, "select-stream",
G_CALLBACK (select_stream_cb), group);
group->source_setup_id = g_signal_connect (uridecodebin, "source-setup",
G_CALLBACK (source_setup_cb), group);
group->about_to_finish_id =
g_signal_connect (uridecodebin, "about-to-finish",
G_CALLBACK (about_to_finish_cb), group);
if (group->suburi)
g_object_set (group->uridecodebin, "suburi", group->suburi, NULL);
/* release the group lock before setting the state of the source bins, they
* might fire signals in this thread that we need to handle with the
* group_lock taken. */
GST_SOURCE_GROUP_UNLOCK (group);
if ((state_ret =
gst_element_set_state (uridecodebin,
GST_STATE_PAUSED)) == GST_STATE_CHANGE_FAILURE)
goto uridecodebin_failure;
GST_SOURCE_GROUP_LOCK (group);
/* allow state changes of the playbin affect the group elements now */
group_set_locked_state_unlocked (playbin, group, FALSE);
group->active = TRUE;
GST_SOURCE_GROUP_UNLOCK (group);
return state_ret;
/* ERRORS */
no_uridecodebin:
{
GstMessage *msg;
GST_SOURCE_GROUP_UNLOCK (group);
msg =
gst_missing_element_message_new (GST_ELEMENT_CAST (playbin),
"uridecodebin3");
gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
GST_ELEMENT_ERROR (playbin, CORE, MISSING_PLUGIN,
(_("Could not create \"uridecodebin3\" element.")), (NULL));
GST_SOURCE_GROUP_LOCK (group);
goto error_cleanup;
}
uridecodebin_failure:
{
GST_DEBUG_OBJECT (playbin, "failed state change of uridecodebin");
GST_SOURCE_GROUP_LOCK (group);
goto error_cleanup;
}
sink_failure:
{
GST_ERROR_OBJECT (playbin, "failed to activate sinks");
goto error_cleanup;
}
error_cleanup:
{
group->selected_stream_types = 0;
/* delete any custom sinks we might have */
if (group->audio_sink) {
/* If this is a automatically created sink set it to NULL */
if (audio_sink_activated)
gst_element_set_state (group->audio_sink, GST_STATE_NULL);
gst_object_unref (group->audio_sink);
}
group->audio_sink = NULL;
if (group->video_sink) {
/* If this is a automatically created sink set it to NULL */
if (video_sink_activated)
gst_element_set_state (group->video_sink, GST_STATE_NULL);
gst_object_unref (group->video_sink);
}
group->video_sink = NULL;
if (group->text_sink) {
/* If this is a automatically created sink set it to NULL */
if (text_sink_activated)
gst_element_set_state (group->text_sink, GST_STATE_NULL);
gst_object_unref (group->text_sink);
}
group->text_sink = NULL;
if (uridecodebin) {
REMOVE_SIGNAL (group->uridecodebin, group->pad_added_id);
REMOVE_SIGNAL (group->uridecodebin, group->pad_removed_id);
REMOVE_SIGNAL (group->uridecodebin, group->select_stream_id);
REMOVE_SIGNAL (group->uridecodebin, group->source_setup_id);
REMOVE_SIGNAL (group->uridecodebin, group->about_to_finish_id);
#if 0
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_factories_id);
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_select_id);
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_continue_id);
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_query_id);
#endif
gst_element_set_state (uridecodebin, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), uridecodebin);
}
GST_SOURCE_GROUP_UNLOCK (group);
return GST_STATE_CHANGE_FAILURE;
}
}
/* must be called with PLAY_BIN_LOCK, which is dropped temporarily
* if changing states */
static gboolean
deactivate_group (GstPlayBin3 * playbin, GstSourceGroup * group)
{
g_return_val_if_fail (group->active, FALSE);
g_return_val_if_fail (group->valid, FALSE);
GST_DEBUG_OBJECT (playbin, "unlinking group %p", group);
GST_SOURCE_GROUP_LOCK (group);
group->active = FALSE;
group->playing = FALSE;
group->group_id = GST_GROUP_ID_INVALID;
group->selected_stream_types = 0;
/* Update global selected_stream_types */
playbin->selected_stream_types =
playbin->groups[0].selected_stream_types | playbin->groups[1].
selected_stream_types;
if (playbin->active_stream_types != playbin->selected_stream_types)
reconfigure_output (playbin);
#if 0
/* delete any custom sinks we might have.
* conditionally set them to null if they aren't inside playsink yet */
if (group->audio_sink) {
if (!gst_object_has_as_ancestor (GST_OBJECT_CAST (group->audio_sink),
GST_OBJECT_CAST (playbin->playsink))) {
gst_element_set_state (group->audio_sink, GST_STATE_NULL);
}
gst_object_unref (group->audio_sink);
}
group->audio_sink = NULL;
if (group->video_sink) {
if (!gst_object_has_as_ancestor (GST_OBJECT_CAST (group->video_sink),
GST_OBJECT_CAST (playbin->playsink))) {
gst_element_set_state (group->video_sink, GST_STATE_NULL);
}
gst_object_unref (group->video_sink);
}
group->video_sink = NULL;
if (group->text_sink) {
if (!gst_object_has_as_ancestor (GST_OBJECT_CAST (group->text_sink),
GST_OBJECT_CAST (playbin->playsink))) {
gst_element_set_state (group->text_sink, GST_STATE_NULL);
}
gst_object_unref (group->text_sink);
}
group->text_sink = NULL;
#endif
if (group->uridecodebin) {
REMOVE_SIGNAL (group->uridecodebin, group->select_stream_id);
REMOVE_SIGNAL (group->uridecodebin, group->source_setup_id);
REMOVE_SIGNAL (group->uridecodebin, group->about_to_finish_id);
GST_PLAY_BIN3_UNLOCK (playbin);
gst_element_set_state (group->uridecodebin, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playbin), group->uridecodebin);
GST_PLAY_BIN3_LOCK (playbin);
REMOVE_SIGNAL (group->uridecodebin, group->pad_added_id);
REMOVE_SIGNAL (group->uridecodebin, group->pad_removed_id);
#if 0
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_factories_id);
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_select_id);
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_continue_id);
REMOVE_SIGNAL (group->urisourcebin, group->autoplug_query_id);
#endif
}
GST_SOURCE_GROUP_UNLOCK (group);
GST_DEBUG_OBJECT (playbin, "Done");
return TRUE;
}
/* setup the next group to play, this assumes the next_group is valid and
* configured. It swaps out the current_group and activates the valid
* next_group. */
static GstStateChangeReturn
setup_next_source (GstPlayBin3 * playbin)
{
GstSourceGroup *new_group;
GstStateChangeReturn state_ret;
GST_DEBUG_OBJECT (playbin, "setup next source");
debug_groups (playbin);
/* see if there is a next group */
GST_PLAY_BIN3_LOCK (playbin);
new_group = playbin->next_group;
if (!new_group || !new_group->valid || new_group->active)
goto no_next_group;
/* activate the new group */
state_ret = activate_group (playbin, new_group);
if (state_ret == GST_STATE_CHANGE_FAILURE)
goto activate_failed;
GST_PLAY_BIN3_UNLOCK (playbin);
debug_groups (playbin);
return state_ret;
/* ERRORS */
no_next_group:
{
GST_DEBUG_OBJECT (playbin, "no next group");
GST_PLAY_BIN3_UNLOCK (playbin);
return GST_STATE_CHANGE_FAILURE;
}
activate_failed:
{
new_group->stream_changed_pending = FALSE;
GST_DEBUG_OBJECT (playbin, "activate failed");
new_group->valid = FALSE;
GST_PLAY_BIN3_UNLOCK (playbin);
return GST_STATE_CHANGE_FAILURE;
}
}
/* The group that is currently playing is copied again to the
* next_group so that it will start playing the next time.
*/
static gboolean
save_current_group (GstPlayBin3 * playbin)
{
GstSourceGroup *curr_group;
gboolean swapped = FALSE;
GST_DEBUG_OBJECT (playbin, "save current group");
/* see if there is a current group */
GST_PLAY_BIN3_LOCK (playbin);
curr_group = playbin->curr_group;
if (curr_group && curr_group->valid && curr_group->active) {
swapped = TRUE;
}
/* swap old and new */
playbin->curr_group = playbin->next_group;
playbin->next_group = curr_group;
if (swapped) {
/* unlink our pads with the sink */
deactivate_group (playbin, curr_group);
}
GST_PLAY_BIN3_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 (GstPlayBin3 * playbin, gboolean locked)
{
GST_DEBUG_OBJECT (playbin, "setting locked state to %d on all groups",
locked);
GST_PLAY_BIN3_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_BIN3_UNLOCK (playbin);
return TRUE;
}
static void
gst_play_bin3_check_group_status (GstPlayBin3 * playbin)
{
if (playbin->activation_task)
gst_task_start (playbin->activation_task);
}
static void
gst_play_bin3_activation_thread (GstPlayBin3 * playbin)
{
GST_DEBUG_OBJECT (playbin, "starting");
debug_groups (playbin);
/* Check if next_group needs to be deactivated */
GST_PLAY_BIN3_LOCK (playbin);
if (playbin->next_group->active) {
deactivate_group (playbin, playbin->next_group);
playbin->next_group->valid = FALSE;
}
/* Is there a pending about-to-finish to be emitted ? */
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->pending_about_to_finish) {
GST_LOG_OBJECT (playbin, "Propagating about-to-finish");
playbin->curr_group->pending_about_to_finish = FALSE;
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
/* This will activate the next source afterwards */
emit_about_to_finish (playbin);
} else
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
GST_LOG_OBJECT (playbin, "Pausing task");
if (playbin->activation_task)
gst_task_pause (playbin->activation_task);
GST_PLAY_BIN3_UNLOCK (playbin);
GST_DEBUG_OBJECT (playbin, "done");
return;
}
static gboolean
gst_play_bin3_start (GstPlayBin3 * playbin)
{
GST_DEBUG_OBJECT (playbin, "starting");
GST_PLAY_BIN3_LOCK (playbin);
if (playbin->activation_task == NULL) {
playbin->activation_task =
gst_task_new ((GstTaskFunction) gst_play_bin3_activation_thread,
playbin, NULL);
if (playbin->activation_task == NULL)
goto task_error;
gst_task_set_lock (playbin->activation_task, &playbin->activation_lock);
}
GST_LOG_OBJECT (playbin, "clearing shutdown flag");
g_atomic_int_set (&playbin->shutdown, 0);
do_async_start (playbin);
GST_PLAY_BIN3_UNLOCK (playbin);
return TRUE;
task_error:
{
GST_PLAY_BIN3_UNLOCK (playbin);
GST_ERROR_OBJECT (playbin, "Failed to create task");
return FALSE;
}
}
static void
gst_play_bin3_stop (GstPlayBin3 * playbin)
{
GstTask *task;
GST_DEBUG_OBJECT (playbin, "stopping");
/* FIXME unlock our waiting groups */
GST_LOG_OBJECT (playbin, "setting shutdown flag");
g_atomic_int_set (&playbin->shutdown, 1);
/* 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_BIN3_DYN_LOCK (playbin);
GST_LOG_OBJECT (playbin, "dynamic lock taken, we can continue shutdown");
GST_PLAY_BIN3_DYN_UNLOCK (playbin);
/* Stop the activation task */
GST_PLAY_BIN3_LOCK (playbin);
if ((task = playbin->activation_task)) {
playbin->activation_task = NULL;
GST_PLAY_BIN3_UNLOCK (playbin);
gst_task_stop (task);
/* Make sure task is not running */
g_rec_mutex_lock (&playbin->activation_lock);
g_rec_mutex_unlock (&playbin->activation_lock);
/* Wait for task to finish and unref it */
gst_task_join (task);
gst_object_unref (task);
GST_PLAY_BIN3_LOCK (playbin);
}
GST_PLAY_BIN3_UNLOCK (playbin);
}
static GstStateChangeReturn
gst_play_bin3_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstPlayBin3 *playbin;
gboolean do_save = FALSE;
playbin = GST_PLAY_BIN3 (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!gst_play_bin3_start (playbin))
return GST_STATE_CHANGE_FAILURE;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
async_down:
gst_play_bin3_stop (playbin);
if (!do_save)
break;
case GST_STATE_CHANGE_READY_TO_NULL:
/* we go async to PAUSED, so if that fails, we never make it to PAUSED
* and we will never be called with the GST_STATE_CHANGE_PAUSED_TO_READY.
* Make sure we do go through the same steps (see above) for
* proper cleanup */
if (!g_atomic_int_get (&playbin->shutdown)) {
do_save = TRUE;
goto async_down;
}
/* unlock so that all groups go to NULL */
groups_set_locked_state (playbin, FALSE);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
goto failure;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if ((ret = setup_next_source (playbin)) == GST_STATE_CHANGE_FAILURE)
goto failure;
if (ret == GST_STATE_CHANGE_SUCCESS)
ret = GST_STATE_CHANGE_ASYNC;
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
do_async_done (playbin);
/* FIXME Release audio device when we implement that */
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
playbin->is_live = FALSE;
save_current_group (playbin);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
{
guint i;
/* also do missed state change down to READY */
if (do_save)
save_current_group (playbin);
/* Deactivate the groups, set uridecodebin to NULL and unref it */
GST_PLAY_BIN3_LOCK (playbin);
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;
}
}
GST_PLAY_BIN3_UNLOCK (playbin);
/* 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);
break;
}
default:
break;
}
if (GST_STATE_TRANSITION_NEXT (transition) == GST_STATE_PAUSED)
playbin->is_live = ret == GST_STATE_CHANGE_NO_PREROLL;
if (ret == GST_STATE_CHANGE_NO_PREROLL)
do_async_done (playbin);
return ret;
/* ERRORS */
failure:
{
do_async_done (playbin);
if (transition == GST_STATE_CHANGE_READY_TO_PAUSED) {
GstSourceGroup *curr_group;
GST_PLAY_BIN3_LOCK (playbin);
curr_group = playbin->curr_group;
if (curr_group) {
if (curr_group->active && curr_group->valid) {
/* unlink our pads with the sink */
deactivate_group (playbin, curr_group);
}
curr_group->valid = FALSE;
}
/* Swap current and next group back */
playbin->curr_group = playbin->next_group;
playbin->next_group = curr_group;
GST_PLAY_BIN3_UNLOCK (playbin);
}
return ret;
}
}
static void
gst_play_bin3_overlay_expose (GstVideoOverlay * overlay)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (overlay);
gst_video_overlay_expose (GST_VIDEO_OVERLAY (playbin->playsink));
}
static void
gst_play_bin3_overlay_handle_events (GstVideoOverlay * overlay,
gboolean handle_events)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (overlay);
gst_video_overlay_handle_events (GST_VIDEO_OVERLAY (playbin->playsink),
handle_events);
}
static void
gst_play_bin3_overlay_set_render_rectangle (GstVideoOverlay * overlay, gint x,
gint y, gint width, gint height)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (overlay);
gst_video_overlay_set_render_rectangle (GST_VIDEO_OVERLAY (playbin->playsink),
x, y, width, height);
}
static void
gst_play_bin3_overlay_set_window_handle (GstVideoOverlay * overlay,
guintptr handle)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (overlay);
gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (playbin->playsink),
handle);
}
static void
gst_play_bin3_overlay_init (gpointer g_iface, gpointer g_iface_data)
{
GstVideoOverlayInterface *iface = (GstVideoOverlayInterface *) g_iface;
iface->expose = gst_play_bin3_overlay_expose;
iface->handle_events = gst_play_bin3_overlay_handle_events;
iface->set_render_rectangle = gst_play_bin3_overlay_set_render_rectangle;
iface->set_window_handle = gst_play_bin3_overlay_set_window_handle;
}
static void
gst_play_bin3_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (navigation);
gst_navigation_send_event (GST_NAVIGATION (playbin->playsink), structure);
}
static void
gst_play_bin3_navigation_init (gpointer g_iface, gpointer g_iface_data)
{
GstNavigationInterface *iface = (GstNavigationInterface *) g_iface;
iface->send_event = gst_play_bin3_navigation_send_event;
}
static const GList *
gst_play_bin3_colorbalance_list_channels (GstColorBalance * balance)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (balance);
return
gst_color_balance_list_channels (GST_COLOR_BALANCE (playbin->playsink));
}
static void
gst_play_bin3_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (balance);
gst_color_balance_set_value (GST_COLOR_BALANCE (playbin->playsink), channel,
value);
}
static gint
gst_play_bin3_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (balance);
return gst_color_balance_get_value (GST_COLOR_BALANCE (playbin->playsink),
channel);
}
static GstColorBalanceType
gst_play_bin3_colorbalance_get_balance_type (GstColorBalance * balance)
{
GstPlayBin3 *playbin = GST_PLAY_BIN3 (balance);
return
gst_color_balance_get_balance_type (GST_COLOR_BALANCE
(playbin->playsink));
}
static void
gst_play_bin3_colorbalance_init (gpointer g_iface, gpointer g_iface_data)
{
GstColorBalanceInterface *iface = (GstColorBalanceInterface *) g_iface;
iface->list_channels = gst_play_bin3_colorbalance_list_channels;
iface->set_value = gst_play_bin3_colorbalance_set_value;
iface->get_value = gst_play_bin3_colorbalance_get_value;
iface->get_balance_type = gst_play_bin3_colorbalance_get_balance_type;
}
gboolean
gst_play_bin3_custom_element_init (GstPlugin * plugin)
{
gboolean ret = TRUE;
GST_DEBUG_CATEGORY_INIT (gst_play_bin3_debug, "playbin3", 0, "play bin3");
playback_element_init (plugin);
if (g_getenv ("USE_PLAYBIN3")) {
ret &= gst_element_register (plugin, "playbin", GST_RANK_NONE,
GST_TYPE_PLAY_BIN);
}
ret &= gst_element_register (plugin, "playbin3", GST_RANK_NONE,
GST_TYPE_PLAY_BIN);
return ret;
}
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