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gstreamer/gst/playback/gstplaysink.c
Stéphane Cerveau 1e02717e83 playback: allow per feature registration 
Split plugin into features including
elements and device providers which
can be indiviually registered during
a static build.

More details here:

https://gitlab.freedesktop.org/gstreamer/gst-build/-/merge_requests/199
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/661

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/900>
2020-12-10 13:01:57 +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>
*
* 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.
*/
#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/video/video.h>
#include <gst/audio/streamvolume.h>
#include <gst/video/colorbalance.h>
#include <gst/video/videooverlay.h>
#include <gst/video/navigation.h>
#include "gstplaybackelements.h"
#include "gstplaysink.h"
#include "gststreamsynchronizer.h"
#include "gstplaysinkvideoconvert.h"
#include "gstplaysinkaudioconvert.h"
GST_DEBUG_CATEGORY_STATIC (gst_play_sink_debug);
#define GST_CAT_DEFAULT gst_play_sink_debug
#define VOLUME_MAX_DOUBLE 10.0
#define DEFAULT_FLAGS GST_PLAY_FLAG_AUDIO | GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_TEXT | \
GST_PLAY_FLAG_SOFT_VOLUME | GST_PLAY_FLAG_SOFT_COLORBALANCE
#define GST_PLAY_CHAIN(c) ((GstPlayChain *)(c))
/* enum types */
/**
* GstPlaySinkSendEventMode:
* @MODE_DEFAULT: default GstBin's send_event handling
* @MODE_FIRST: send event only to the first sink that return true
*
* Send event handling to use
*/
typedef enum
{
MODE_DEFAULT = 0,
MODE_FIRST = 1
} GstPlaySinkSendEventMode;
#define GST_TYPE_PLAY_SINK_SEND_EVENT_MODE (gst_play_sink_send_event_mode_get_type ())
static GType
gst_play_sink_send_event_mode_get_type (void)
{
static GType gtype = 0;
if (gtype == 0) {
static const GEnumValue values[] = {
{MODE_DEFAULT, "Default GstBin's send_event handling (default)",
"default"},
{MODE_FIRST, "Sends the event to sinks until the first one handles it",
"first"},
{0, NULL, NULL}
};
gtype = g_enum_register_static ("GstPlaySinkSendEventMode", values);
}
return gtype;
}
/* holds the common data fields for the audio and video pipelines. We keep them
* in a structure to more easily have all the info available. */
typedef struct
{
GstPlaySink *playsink;
GstElement *bin;
gboolean added;
gboolean activated;
gboolean raw;
} GstPlayChain;
typedef struct
{
GstPlayChain chain;
GstPad *sinkpad;
GstElement *queue;
GstElement *filter_conv;
GstElement *filter;
GstElement *conv;
GstElement *volume; /* element with the volume property */
gboolean sink_volume; /* if the volume was provided by the sink */
gulong notify_volume_id;
gulong notify_mute_id;
GstElement *sink;
GstElement *ts_offset;
} GstPlayAudioChain;
typedef struct
{
GstPlayChain chain;
GstPad *sinkpad, *srcpad;
GstElement *conv;
GstElement *deinterlace;
} GstPlayVideoDeinterlaceChain;
typedef struct
{
GstPlayChain chain;
GstPad *sinkpad;
GstElement *queue;
GstElement *filter_conv;
GstElement *filter;
GstElement *conv;
GstElement *sink;
gboolean async;
GstElement *ts_offset;
} GstPlayVideoChain;
typedef struct
{
GstPlayChain chain;
GstPad *sinkpad;
GstElement *queue;
GstElement *conv;
GstElement *resample;
GstPad *blockpad; /* srcpad of queue, used for blocking the vis */
GstPad *vispeerpad; /* srcpad of resample, used for unlinking the vis */
GstPad *vissinkpad; /* visualisation sinkpad, */
GstElement *vis;
GstPad *vissrcpad; /* visualisation srcpad, */
GstPad *srcpad; /* outgoing srcpad, used to connect to the next
* chain */
} GstPlayVisChain;
typedef struct
{
GstPlayChain chain;
GstPad *sinkpad;
GstElement *queue;
GstElement *identity;
GstElement *overlay;
GstPad *videosinkpad;
GstPad *textsinkpad;
GstPad *srcpad; /* outgoing srcpad, used to connect to the next
* chain */
GstElement *sink; /* custom sink to receive subtitle buffers */
} GstPlayTextChain;
#define GST_PLAY_SINK_GET_LOCK(playsink) (&((GstPlaySink *)playsink)->lock)
#define GST_PLAY_SINK_LOCK(playsink) G_STMT_START { \
GST_LOG_OBJECT (playsink, "locking from thread %p", g_thread_self ()); \
g_rec_mutex_lock (GST_PLAY_SINK_GET_LOCK (playsink)); \
GST_LOG_OBJECT (playsink, "locked from thread %p", g_thread_self ()); \
} G_STMT_END
#define GST_PLAY_SINK_UNLOCK(playsink) G_STMT_START { \
GST_LOG_OBJECT (playsink, "unlocking from thread %p", g_thread_self ()); \
g_rec_mutex_unlock (GST_PLAY_SINK_GET_LOCK (playsink)); \
} G_STMT_END
#define PENDING_FLAG_SET(playsink, flagtype) \
((playsink->pending_blocked_pads) |= (1 << flagtype))
#define PENDING_FLAG_UNSET(playsink, flagtype) \
((playsink->pending_blocked_pads) &= ~(1 << flagtype))
#define PENDING_FLAG_IS_SET(playsink, flagtype) \
((playsink->pending_blocked_pads) & (1 << flagtype))
#define PENDING_VIDEO_BLOCK(playsink) \
((playsink->pending_blocked_pads) & (1 << GST_PLAY_SINK_TYPE_VIDEO))
#define PENDING_AUDIO_BLOCK(playsink) \
((playsink->pending_blocked_pads) & (1 << GST_PLAY_SINK_TYPE_AUDIO))
#define PENDING_TEXT_BLOCK(playsink) \
PENDING_FLAG_IS_SET(playsink, GST_PLAY_SINK_TYPE_TEXT)
struct _GstPlaySink
{
GstBin bin;
GRecMutex lock;
gboolean async_pending;
gboolean need_async_start;
GstPlayFlags flags;
GstStreamSynchronizer *stream_synchronizer;
/* chains */
GstPlayAudioChain *audiochain;
GstPlayVideoDeinterlaceChain *videodeinterlacechain;
GstPlayVideoChain *videochain;
GstPlayVisChain *vischain;
GstPlayTextChain *textchain;
/* audio */
GstPad *audio_pad;
gboolean audio_pad_raw;
gboolean audio_pad_blocked;
GstPad *audio_srcpad_stream_synchronizer;
GstPad *audio_sinkpad_stream_synchronizer;
GstElement *audio_ssync_queue;
GstPad *audio_ssync_queue_sinkpad;
gulong audio_block_id;
gulong audio_notify_caps_id;
/* audio tee */
GstElement *audio_tee;
GstPad *audio_tee_sink;
GstPad *audio_tee_asrc;
GstPad *audio_tee_vissrc;
/* video */
GstPad *video_pad;
gboolean video_pad_raw;
gboolean video_pad_blocked;
GstPad *video_srcpad_stream_synchronizer;
GstPad *video_sinkpad_stream_synchronizer;
gulong video_block_id;
gulong video_notify_caps_id;
/* text */
GstPad *text_pad;
gboolean text_pad_blocked;
GstPad *text_srcpad_stream_synchronizer;
GstPad *text_sinkpad_stream_synchronizer;
gulong text_block_id;
gulong vis_pad_block_id;
guint32 pending_blocked_pads;
/* properties */
GstElement *audio_sink;
GstElement *video_sink;
GstElement *audio_filter;
GstElement *video_filter;
GstElement *visualisation;
GstElement *text_sink;
gdouble volume;
gboolean mute;
gchar *font_desc; /* font description */
gchar *subtitle_encoding; /* subtitle encoding */
guint connection_speed; /* connection speed in bits/sec (0 = unknown) */
guint count;
gboolean volume_changed; /* volume/mute changed while no audiochain */
gboolean mute_changed; /* ... has been created yet */
gint64 av_offset;
gint64 text_offset;
GstPlaySinkSendEventMode send_event_mode;
gboolean force_aspect_ratio;
/* videooverlay proxy interface */
GstVideoOverlay *overlay_element; /* protected with LOCK */
gboolean overlay_handle_set;
guintptr overlay_handle;
gboolean overlay_render_rectangle_set;
gint overlay_x, overlay_y, overlay_width, overlay_height;
gboolean overlay_handle_events_set;
gboolean overlay_handle_events;
/* colorbalance proxy interface */
GstColorBalance *colorbalance_element;
GList *colorbalance_channels; /* CONTRAST, BRIGHTNESS, HUE, SATURATION */
gint colorbalance_values[4];
gulong colorbalance_value_changed_id;
/* sending audio/video flushes break stream changes when the pipeline
* is paused and played again in 0.10 */
#if 0
gboolean video_custom_flush_finished;
gboolean video_ignore_wrong_state;
gboolean video_pending_flush;
gboolean audio_custom_flush_finished;
gboolean audio_ignore_wrong_state;
gboolean audio_pending_flush;
#endif
gboolean text_custom_flush_finished;
gboolean text_ignore_wrong_state;
gboolean text_pending_flush;
};
struct _GstPlaySinkClass
{
GstBinClass parent_class;
gboolean (*reconfigure) (GstPlaySink * playsink);
GstSample *(*convert_sample) (GstPlaySink * playsink, GstCaps * caps);
};
static GstStaticPadTemplate audiotemplate =
GST_STATIC_PAD_TEMPLATE ("audio_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate videotemplate =
GST_STATIC_PAD_TEMPLATE ("video_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate texttemplate = GST_STATIC_PAD_TEMPLATE ("text_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
/* FIXME 0.11: Remove */
static GstStaticPadTemplate audiorawtemplate =
GST_STATIC_PAD_TEMPLATE ("audio_raw_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate videorawtemplate =
GST_STATIC_PAD_TEMPLATE ("video_raw_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
/* props */
enum
{
PROP_0,
PROP_FLAGS,
PROP_MUTE,
PROP_VOLUME,
PROP_FONT_DESC,
PROP_SUBTITLE_ENCODING,
PROP_VIS_PLUGIN,
PROP_SAMPLE,
PROP_AV_OFFSET,
PROP_TEXT_OFFSET,
PROP_VIDEO_SINK,
PROP_AUDIO_SINK,
PROP_TEXT_SINK,
PROP_SEND_EVENT_MODE,
PROP_FORCE_ASPECT_RATIO,
PROP_VIDEO_FILTER,
PROP_AUDIO_FILTER
};
/* signals */
enum
{
LAST_SIGNAL
};
static void gst_play_sink_dispose (GObject * object);
static void gst_play_sink_finalize (GObject * object);
static void gst_play_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_play_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec);
static GstPad *gst_play_sink_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
static void gst_play_sink_release_request_pad (GstElement * element,
GstPad * pad);
static gboolean gst_play_sink_send_event (GstElement * element,
GstEvent * event);
static GstStateChangeReturn gst_play_sink_change_state (GstElement * element,
GstStateChange transition);
static void gst_play_sink_handle_message (GstBin * bin, GstMessage * message);
/* sending audio/video flushes break stream changes when the pipeline
* is paused and played again in 0.10 */
#if 0
static gboolean gst_play_sink_video_sink_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_play_sink_video_sink_chain (GstPad * pad,
GstBuffer * buffer);
static gboolean gst_play_sink_audio_sink_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_play_sink_audio_sink_chain (GstPad * pad,
GstBuffer * buffer);
#endif
static gboolean gst_play_sink_text_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static GstFlowReturn gst_play_sink_text_sink_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer);
static void notify_volume_cb (GObject * object, GParamSpec * pspec,
GstPlaySink * playsink);
static void notify_mute_cb (GObject * object, GParamSpec * pspec,
GstPlaySink * playsink);
static void update_av_offset (GstPlaySink * playsink);
static void update_text_offset (GstPlaySink * playsink);
static gboolean gst_play_sink_do_reconfigure (GstPlaySink * playsink);
static GQuark _playsink_reset_segment_event_marker_id = 0;
/* static guint gst_play_sink_signals[LAST_SIGNAL] = { 0 }; */
static void gst_play_sink_overlay_init (gpointer g_iface,
gpointer g_iface_data);
static void gst_play_sink_navigation_init (gpointer g_iface,
gpointer g_iface_data);
static void gst_play_sink_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_sink_overlay_init,
NULL, NULL
};
static const GInterfaceInfo nav_info = {
gst_play_sink_navigation_init,
NULL, NULL
};
static const GInterfaceInfo col_info = {
gst_play_sink_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);
}
G_DEFINE_TYPE_WITH_CODE (GstPlaySink, gst_play_sink, GST_TYPE_BIN,
_do_init_type (g_define_type_id));
#define _do_init \
GST_DEBUG_CATEGORY_INIT (gst_play_sink_debug, "playsink", 0, "play sink");\
ret |= playback_element_init (plugin);
GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (playsink, "playsink", GST_RANK_NONE,
GST_TYPE_PLAY_SINK, _do_init);
static void
gst_play_sink_class_init (GstPlaySinkClass * klass)
{
GObjectClass *gobject_klass;
GstElementClass *gstelement_klass;
GstBinClass *gstbin_klass;
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
gstbin_klass = (GstBinClass *) klass;
gobject_klass->dispose = gst_play_sink_dispose;
gobject_klass->finalize = gst_play_sink_finalize;
gobject_klass->set_property = gst_play_sink_set_property;
gobject_klass->get_property = gst_play_sink_get_property;
/**
* GstPlaySink:flags
*
* Control the behaviour of playsink.
*/
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));
/**
* GstPlaySink: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));
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_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_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));
/**
* GstPlaySink:sample:
*
* 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));
/**
* GstPlaySink: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));
/**
* GstPlaySink: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));
/**
* GstPlaySink:video-filter:
*
* Set the video filter element/bin to use. Will apply on a best-effort basis
* unless GST_PLAY_FLAG_FORCE_FILTERS is set. playsink must be in
* %GST_STATE_NULL
*/
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));
/**
* GstPlaySink:audio-filter:
*
* Set the audio filter element/bin to use. Will apply on a best-effort basis
* unless GST_PLAY_FLAG_FORCE_FILTERS is set. playsink must be in
* %GST_STATE_NULL
*/
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));
/**
* GstPlaySink:video-sink:
*
* Set the used video sink element. NULL will use the default sink. playsink
* must be in %GST_STATE_NULL
*/
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));
/**
* GstPlaySink:audio-sink:
*
* Set the used audio sink element. NULL will use the default sink. playsink
* must be in %GST_STATE_NULL
*/
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));
/**
* GstPlaySink:text-sink:
*
* Set the used text sink element. NULL will use the default sink. playsink
* must be in %GST_STATE_NULL
*/
g_object_class_install_property (gobject_klass, PROP_TEXT_SINK,
g_param_spec_object ("text-sink", "Text sink",
"the text output element to use (NULL = default subtitleoverlay)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlaySink::send-event-mode:
*
* Sets the handling method used for events received from send_event
* function. The default is %MODE_DEFAULT, that uses %GstBin's default
* handling (push the event to all internal sinks).
*/
g_object_class_install_property (gobject_klass, PROP_SEND_EVENT_MODE,
g_param_spec_enum ("send-event-mode", "Send event mode",
"How to send events received in send_event function",
GST_TYPE_PLAY_SINK_SEND_EVENT_MODE, MODE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlaySink::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));
g_signal_new ("reconfigure", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GstPlaySinkClass,
reconfigure), NULL, NULL, NULL, G_TYPE_BOOLEAN, 0, G_TYPE_NONE);
/**
* GstPlaySink::convert-sample:
* @playsink: a #GstPlaySink
* @caps: the target format of the sample
*
* Action signal to retrieve the currently playing video sample in the format
* specified by @caps.
* If @caps is %NULL, no conversion will be performed and this function is
* equivalent to the #GstPlaySink:sample property.
*
* Returns: a #GstSample of the current video sample converted to #caps.
* The caps in the sample will describe the final layout of the buffer data.
* %NULL is returned when no current sample can be retrieved or when the
* conversion failed.
*/
g_signal_new ("convert-sample", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstPlaySinkClass, convert_sample), NULL, NULL,
NULL, GST_TYPE_SAMPLE, 1, GST_TYPE_CAPS);
gst_element_class_add_static_pad_template (gstelement_klass,
&audiorawtemplate);
gst_element_class_add_static_pad_template (gstelement_klass, &audiotemplate);
gst_element_class_add_static_pad_template (gstelement_klass,
&videorawtemplate);
gst_element_class_add_static_pad_template (gstelement_klass, &videotemplate);
gst_element_class_add_static_pad_template (gstelement_klass, &texttemplate);
gst_element_class_set_static_metadata (gstelement_klass, "Player Sink",
"Generic/Bin/Sink",
"Convenience sink for multiple streams",
"Wim Taymans <wim.taymans@gmail.com>");
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_play_sink_change_state);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_sink_send_event);
gstelement_klass->request_new_pad =
GST_DEBUG_FUNCPTR (gst_play_sink_request_new_pad);
gstelement_klass->release_pad =
GST_DEBUG_FUNCPTR (gst_play_sink_release_request_pad);
gstbin_klass->handle_message =
GST_DEBUG_FUNCPTR (gst_play_sink_handle_message);
klass->reconfigure = GST_DEBUG_FUNCPTR (gst_play_sink_reconfigure);
klass->convert_sample = GST_DEBUG_FUNCPTR (gst_play_sink_convert_sample);
_playsink_reset_segment_event_marker_id =
g_quark_from_static_string ("gst-playsink-reset-segment-event-marker");
g_type_class_ref (GST_TYPE_STREAM_SYNCHRONIZER);
g_type_class_ref (GST_TYPE_COLOR_BALANCE_CHANNEL);
gst_type_mark_as_plugin_api (GST_TYPE_PLAY_SINK_SEND_EVENT_MODE, 0);
}
static void
gst_play_sink_init (GstPlaySink * playsink)
{
GstColorBalanceChannel *channel;
/* init groups */
playsink->video_sink = NULL;
playsink->audio_sink = NULL;
playsink->visualisation = NULL;
playsink->text_sink = NULL;
playsink->volume = 1.0;
playsink->font_desc = NULL;
playsink->subtitle_encoding = NULL;
playsink->flags = DEFAULT_FLAGS;
playsink->send_event_mode = MODE_DEFAULT;
playsink->force_aspect_ratio = TRUE;
playsink->stream_synchronizer =
g_object_new (GST_TYPE_STREAM_SYNCHRONIZER, NULL);
gst_bin_add (GST_BIN_CAST (playsink),
GST_ELEMENT_CAST (playsink->stream_synchronizer));
g_rec_mutex_init (&playsink->lock);
GST_OBJECT_FLAG_SET (playsink, GST_ELEMENT_FLAG_SINK);
gst_bin_set_suppressed_flags (GST_BIN (playsink),
GST_ELEMENT_FLAG_SOURCE | GST_ELEMENT_FLAG_SINK);
channel =
GST_COLOR_BALANCE_CHANNEL (g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL,
NULL));
channel->label = g_strdup ("CONTRAST");
channel->min_value = -1000;
channel->max_value = 1000;
playsink->colorbalance_channels =
g_list_append (playsink->colorbalance_channels, channel);
playsink->colorbalance_values[0] = 0;
channel =
GST_COLOR_BALANCE_CHANNEL (g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL,
NULL));
channel->label = g_strdup ("BRIGHTNESS");
channel->min_value = -1000;
channel->max_value = 1000;
playsink->colorbalance_channels =
g_list_append (playsink->colorbalance_channels, channel);
playsink->colorbalance_values[1] = 0;
channel =
GST_COLOR_BALANCE_CHANNEL (g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL,
NULL));
channel->label = g_strdup ("HUE");
channel->min_value = -1000;
channel->max_value = 1000;
playsink->colorbalance_channels =
g_list_append (playsink->colorbalance_channels, channel);
playsink->colorbalance_values[2] = 0;
channel =
GST_COLOR_BALANCE_CHANNEL (g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL,
NULL));
channel->label = g_strdup ("SATURATION");
channel->min_value = -1000;
channel->max_value = 1000;
playsink->colorbalance_channels =
g_list_append (playsink->colorbalance_channels, channel);
playsink->colorbalance_values[3] = 0;
}
static void
disconnect_audio_chain (GstPlayAudioChain * chain, GstPlaySink * playsink)
{
if (chain) {
if (chain->notify_volume_id)
g_signal_handler_disconnect (chain->volume, chain->notify_volume_id);
if (chain->notify_mute_id)
g_signal_handler_disconnect (chain->volume, chain->notify_mute_id);
chain->notify_volume_id = chain->notify_mute_id = 0;
}
}
static void
free_chain (GstPlayChain * chain)
{
if (chain) {
if (chain->bin)
gst_object_unref (chain->bin);
g_free (chain);
}
}
static void
gst_play_sink_remove_audio_ssync_queue (GstPlaySink * playsink)
{
if (playsink->audio_ssync_queue) {
gst_element_set_state (playsink->audio_ssync_queue, GST_STATE_NULL);
gst_object_unref (playsink->audio_ssync_queue_sinkpad);
gst_bin_remove (GST_BIN_CAST (playsink), playsink->audio_ssync_queue);
playsink->audio_ssync_queue = NULL;
playsink->audio_ssync_queue_sinkpad = NULL;
}
}
static void
gst_play_sink_dispose (GObject * object)
{
GstPlaySink *playsink;
playsink = GST_PLAY_SINK (object);
if (playsink->audio_filter != NULL) {
gst_element_set_state (playsink->audio_filter, GST_STATE_NULL);
gst_object_unref (playsink->audio_filter);
playsink->audio_filter = NULL;
}
if (playsink->video_filter != NULL) {
gst_element_set_state (playsink->video_filter, GST_STATE_NULL);
gst_object_unref (playsink->video_filter);
playsink->video_filter = NULL;
}
if (playsink->audio_sink != NULL) {
gst_element_set_state (playsink->audio_sink, GST_STATE_NULL);
gst_object_unref (playsink->audio_sink);
playsink->audio_sink = NULL;
}
if (playsink->video_sink != NULL) {
gst_element_set_state (playsink->video_sink, GST_STATE_NULL);
gst_object_unref (playsink->video_sink);
playsink->video_sink = NULL;
}
if (playsink->visualisation != NULL) {
gst_element_set_state (playsink->visualisation, GST_STATE_NULL);
gst_object_unref (playsink->visualisation);
playsink->visualisation = NULL;
}
if (playsink->text_sink != NULL) {
gst_element_set_state (playsink->text_sink, GST_STATE_NULL);
gst_object_unref (playsink->text_sink);
playsink->text_sink = NULL;
}
free_chain ((GstPlayChain *) playsink->videodeinterlacechain);
playsink->videodeinterlacechain = NULL;
free_chain ((GstPlayChain *) playsink->videochain);
playsink->videochain = NULL;
free_chain ((GstPlayChain *) playsink->audiochain);
playsink->audiochain = NULL;
free_chain ((GstPlayChain *) playsink->vischain);
playsink->vischain = NULL;
free_chain ((GstPlayChain *) playsink->textchain);
playsink->textchain = NULL;
if (playsink->audio_tee_sink) {
gst_object_unref (playsink->audio_tee_sink);
playsink->audio_tee_sink = NULL;
}
if (playsink->audio_tee_vissrc) {
gst_element_release_request_pad (playsink->audio_tee,
playsink->audio_tee_vissrc);
gst_object_unref (playsink->audio_tee_vissrc);
playsink->audio_tee_vissrc = NULL;
}
if (playsink->audio_tee_asrc) {
gst_element_release_request_pad (playsink->audio_tee,
playsink->audio_tee_asrc);
gst_object_unref (playsink->audio_tee_asrc);
playsink->audio_tee_asrc = NULL;
}
g_free (playsink->font_desc);
playsink->font_desc = NULL;
g_free (playsink->subtitle_encoding);
playsink->subtitle_encoding = NULL;
playsink->stream_synchronizer = NULL;
g_list_foreach (playsink->colorbalance_channels, (GFunc) gst_object_unref,
NULL);
g_list_free (playsink->colorbalance_channels);
playsink->colorbalance_channels = NULL;
G_OBJECT_CLASS (gst_play_sink_parent_class)->dispose (object);
}
static void
gst_play_sink_finalize (GObject * object)
{
GstPlaySink *playsink;
playsink = GST_PLAY_SINK (object);
g_rec_mutex_clear (&playsink->lock);
G_OBJECT_CLASS (gst_play_sink_parent_class)->finalize (object);
}
void
gst_play_sink_set_sink (GstPlaySink * playsink, GstPlaySinkType type,
GstElement * sink)
{
GstElement **elem = NULL, *old = NULL;
#ifndef GST_DISABLE_GST_DEBUG
GstPad *sink_pad;
const gchar *sink_type = NULL;
#endif
GST_LOG ("Setting sink %" GST_PTR_FORMAT " as sink type %d", sink, type);
GST_PLAY_SINK_LOCK (playsink);
switch (type) {
case GST_PLAY_SINK_TYPE_AUDIO:
elem = &playsink->audio_sink;
#ifndef GST_DISABLE_GST_DEBUG
sink_type = "audio";
#endif
break;
case GST_PLAY_SINK_TYPE_VIDEO:
elem = &playsink->video_sink;
#ifndef GST_DISABLE_GST_DEBUG
sink_type = "video";
#endif
break;
case GST_PLAY_SINK_TYPE_TEXT:
elem = &playsink->text_sink;
#ifndef GST_DISABLE_GST_DEBUG
sink_type = "text";
#endif
break;
default:
break;
}
if (elem) {
old = *elem;
if (sink)
gst_object_ref_sink (sink);
*elem = sink;
}
GST_PLAY_SINK_UNLOCK (playsink);
#ifndef GST_DISABLE_GST_DEBUG
/* Check and warn if an application sets a sink with no 'sink' pad */
if (sink && elem) {
if ((sink_pad = gst_element_get_static_pad (sink, "sink")) != NULL) {
gst_object_unref (sink_pad);
} else {
GST_ELEMENT_WARNING (playsink, CORE, FAILED,
("Application error - playback can't work"),
("custom %s sink has no pad named \"sink\"", sink_type));
}
}
#endif
if (old) {
/* Set the old sink to NULL if it is not used any longer */
if (old != sink && !GST_OBJECT_PARENT (old))
gst_element_set_state (old, GST_STATE_NULL);
gst_object_unref (old);
}
}
GstElement *
gst_play_sink_get_sink (GstPlaySink * playsink, GstPlaySinkType type)
{
GstElement *result = NULL;
GstElement *elem = NULL, *chainp = NULL;
GST_PLAY_SINK_LOCK (playsink);
switch (type) {
case GST_PLAY_SINK_TYPE_AUDIO:
{
GstPlayAudioChain *chain;
if ((chain = (GstPlayAudioChain *) playsink->audiochain))
chainp = chain->sink;
elem = playsink->audio_sink;
break;
}
case GST_PLAY_SINK_TYPE_VIDEO:
{
GstPlayVideoChain *chain;
if ((chain = (GstPlayVideoChain *) playsink->videochain))
chainp = chain->sink;
elem = playsink->video_sink;
break;
}
case GST_PLAY_SINK_TYPE_TEXT:
{
GstPlayTextChain *chain;
if ((chain = (GstPlayTextChain *) playsink->textchain))
chainp = chain->sink;
elem = playsink->text_sink;
break;
}
default:
break;
}
if (chainp) {
/* we have an active chain with a sink, get the sink */
result = gst_object_ref (chainp);
}
/* nothing found, return last configured sink */
if (result == NULL && elem)
result = gst_object_ref (elem);
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
void
gst_play_sink_set_filter (GstPlaySink * playsink, GstPlaySinkType type,
GstElement * filter)
{
GstElement **elem = NULL, *old = NULL;
GST_LOG_OBJECT (playsink,
"Setting filter %" GST_PTR_FORMAT " as filter type %d", filter, type);
GST_PLAY_SINK_LOCK (playsink);
switch (type) {
case GST_PLAY_SINK_TYPE_AUDIO:
elem = &playsink->audio_filter;
break;
case GST_PLAY_SINK_TYPE_VIDEO:
elem = &playsink->video_filter;
break;
default:
break;
}
if (elem) {
old = *elem;
if (filter)
gst_object_ref_sink (filter);
*elem = filter;
}
GST_PLAY_SINK_UNLOCK (playsink);
if (old) {
/* Set the old filter to NULL if it is not used any longer */
if (old != filter && !GST_OBJECT_PARENT (old))
gst_element_set_state (old, GST_STATE_NULL);
gst_object_unref (old);
}
}
GstElement *
gst_play_sink_get_filter (GstPlaySink * playsink, GstPlaySinkType type)
{
GstElement *result = NULL;
GstElement *elem = NULL, *chainp = NULL;
GST_PLAY_SINK_LOCK (playsink);
switch (type) {
case GST_PLAY_SINK_TYPE_AUDIO:
{
GstPlayAudioChain *chain;
if ((chain = (GstPlayAudioChain *) playsink->audiochain))
chainp = chain->filter;
elem = playsink->audio_filter;
break;
}
case GST_PLAY_SINK_TYPE_VIDEO:
{
GstPlayVideoChain *chain;
if ((chain = (GstPlayVideoChain *) playsink->videochain))
chainp = chain->filter;
elem = playsink->video_filter;
break;
}
default:
break;
}
if (chainp) {
/* we have an active chain with a filter, get the filter */
result = gst_object_ref (chainp);
}
/* nothing found, return last configured filter */
if (result == NULL && elem)
result = gst_object_ref (elem);
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
static GstPadProbeReturn
gst_play_sink_vis_blocked (GstPad * tee_pad, GstPadProbeInfo * info,
gpointer user_data)
{
GstPlaySink *playsink;
GstPlayVisChain *chain;
playsink = GST_PLAY_SINK (user_data);
if (GST_IS_EVENT (info->data) && !GST_EVENT_IS_SERIALIZED (info->data)) {
GST_DEBUG_OBJECT (playsink, "Letting non-serialized event %s pass",
GST_EVENT_TYPE_NAME (info->data));
return GST_PAD_PROBE_PASS;
}
GST_PLAY_SINK_LOCK (playsink);
GST_DEBUG_OBJECT (playsink, "vis pad blocked");
/* now try to change the plugin in the running vis chain */
if (!(chain = (GstPlayVisChain *) playsink->vischain))
goto done;
/* unlink the old plugin and unghost the pad */
gst_pad_unlink (chain->vispeerpad, chain->vissinkpad);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (chain->srcpad), NULL);
/* set the old plugin to NULL and remove */
gst_element_set_state (chain->vis, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (chain->chain.bin), chain->vis);
/* add new plugin and set state to playing */
chain->vis = playsink->visualisation;
gst_bin_add (GST_BIN_CAST (chain->chain.bin), chain->vis);
gst_element_set_state (chain->vis, GST_STATE_PLAYING);
/* get pads */
chain->vissinkpad = gst_element_get_static_pad (chain->vis, "sink");
chain->vissrcpad = gst_element_get_static_pad (chain->vis, "src");
/* link pads */
gst_pad_link_full (chain->vispeerpad, chain->vissinkpad,
GST_PAD_LINK_CHECK_NOTHING);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (chain->srcpad),
chain->vissrcpad);
done:
playsink->vis_pad_block_id = 0;
GST_PLAY_SINK_UNLOCK (playsink);
/* remove the probe and unblock the pad */
return GST_PAD_PROBE_REMOVE;
}
void
gst_play_sink_set_vis_plugin (GstPlaySink * playsink, GstElement * vis)
{
GstPlayVisChain *chain;
/* setting NULL means creating the default vis plugin */
if (vis == NULL)
vis = gst_element_factory_make ("goom", "vis");
/* simply return if we don't have a vis plugin here */
if (vis == NULL)
return;
GST_PLAY_SINK_LOCK (playsink);
/* first store the new vis */
if (playsink->visualisation)
gst_object_unref (playsink->visualisation);
/* take ownership */
gst_object_ref_sink (vis);
playsink->visualisation = vis;
/* now try to change the plugin in the running vis chain, if we have no chain,
* we don't bother, any future vis chain will be created with the new vis
* plugin. */
if (!(chain = (GstPlayVisChain *) playsink->vischain))
goto done;
/* block the pad, the next time the callback is called we can change the
* visualisation. It's possible that this never happens or that the pad was
* already blocked. If the callback never happens, we don't have new data so
* we don't need the new vis plugin. If the pad was already blocked, the
* function returns FALSE but the previous pad block will do the right thing
* anyway. */
GST_DEBUG_OBJECT (playsink, "blocking vis pad");
if (!playsink->vis_pad_block_id && !playsink->audio_block_id
&& !playsink->video_block_id && !playsink->text_block_id)
playsink->vis_pad_block_id =
gst_pad_add_probe (chain->blockpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
gst_play_sink_vis_blocked, playsink, NULL);
done:
GST_PLAY_SINK_UNLOCK (playsink);
return;
}
GstElement *
gst_play_sink_get_vis_plugin (GstPlaySink * playsink)
{
GstElement *result = NULL;
GstPlayVisChain *chain;
GST_PLAY_SINK_LOCK (playsink);
if ((chain = (GstPlayVisChain *) playsink->vischain)) {
/* we have an active chain, get the sink */
if (chain->vis)
result = gst_object_ref (chain->vis);
}
/* nothing found, return last configured sink */
if (result == NULL && playsink->visualisation)
result = gst_object_ref (playsink->visualisation);
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
void
gst_play_sink_set_volume (GstPlaySink * playsink, gdouble volume)
{
GstPlayAudioChain *chain;
GST_PLAY_SINK_LOCK (playsink);
playsink->volume = volume;
chain = (GstPlayAudioChain *) playsink->audiochain;
if (chain && chain->volume) {
GST_LOG_OBJECT (playsink,
"elements: volume=%" GST_PTR_FORMAT "; new volume=%.03f, mute=%d",
chain->volume, volume, playsink->mute);
g_object_set (chain->volume, "volume", volume, NULL);
} else {
GST_LOG_OBJECT (playsink, "no volume element");
playsink->volume_changed = TRUE;
}
GST_PLAY_SINK_UNLOCK (playsink);
}
gdouble
gst_play_sink_get_volume (GstPlaySink * playsink)
{
gdouble result;
GstPlayAudioChain *chain;
GST_PLAY_SINK_LOCK (playsink);
chain = (GstPlayAudioChain *) playsink->audiochain;
result = playsink->volume;
if (chain && chain->volume) {
g_object_get (chain->volume, "volume", &result, NULL);
playsink->volume = result;
}
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
void
gst_play_sink_set_mute (GstPlaySink * playsink, gboolean mute)
{
GstPlayAudioChain *chain;
GST_PLAY_SINK_LOCK (playsink);
playsink->mute = mute;
chain = (GstPlayAudioChain *) playsink->audiochain;
if (chain && chain->volume) {
g_object_set (chain->volume, "mute", mute, NULL);
} else {
playsink->mute_changed = TRUE;
}
GST_PLAY_SINK_UNLOCK (playsink);
}
gboolean
gst_play_sink_get_mute (GstPlaySink * playsink)
{
gboolean result;
GstPlayAudioChain *chain;
GST_PLAY_SINK_LOCK (playsink);
chain = (GstPlayAudioChain *) playsink->audiochain;
if (chain && chain->volume) {
g_object_get (chain->volume, "mute", &result, NULL);
playsink->mute = result;
} else {
result = playsink->mute;
}
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
static void
post_missing_element_message (GstPlaySink * playsink, const gchar * name)
{
GstMessage *msg;
msg = gst_missing_element_message_new (GST_ELEMENT_CAST (playsink), name);
gst_element_post_message (GST_ELEMENT_CAST (playsink), msg);
}
static gboolean
add_chain (GstPlayChain * chain, gboolean add)
{
if (chain->added == add)
return TRUE;
if (add)
gst_bin_add (GST_BIN_CAST (chain->playsink), chain->bin);
else {
gst_bin_remove (GST_BIN_CAST (chain->playsink), chain->bin);
}
chain->added = add;
return TRUE;
}
static gboolean
activate_chain (GstPlayChain * chain, gboolean activate)
{
GstState state;
if (chain->activated == activate)
return TRUE;
GST_OBJECT_LOCK (chain->playsink);
state = GST_STATE_TARGET (chain->playsink);
GST_OBJECT_UNLOCK (chain->playsink);
if (activate)
gst_element_set_state (chain->bin, state);
else
gst_element_set_state (chain->bin, GST_STATE_NULL);
chain->activated = activate;
return TRUE;
}
static gboolean
element_is_sink (GstElement * element)
{
gboolean is_sink;
GST_OBJECT_LOCK (element);
is_sink = GST_OBJECT_FLAG_IS_SET (element, GST_ELEMENT_FLAG_SINK);
GST_OBJECT_UNLOCK (element);
GST_DEBUG_OBJECT (element, "is a sink: %s", (is_sink) ? "yes" : "no");
return is_sink;
}
static gboolean
element_has_property (GstElement * element, const gchar * pname, GType type)
{
GParamSpec *pspec;
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (element), pname);
if (pspec == NULL) {
GST_DEBUG_OBJECT (element, "no %s property", pname);
return FALSE;
}
if (type == G_TYPE_INVALID || type == pspec->value_type ||
g_type_is_a (pspec->value_type, type)) {
GST_DEBUG_OBJECT (element, "has %s property of type %s", pname,
(type == G_TYPE_INVALID) ? "any type" : g_type_name (type));
return TRUE;
}
GST_WARNING_OBJECT (element, "has %s property, but property is of type %s "
"and we expected it to be of type %s", pname,
g_type_name (pspec->value_type), g_type_name (type));
return FALSE;
}
typedef struct
{
const gchar *prop_name;
GType prop_type;
gboolean need_sink;
} FindPropertyHelper;
static gint
find_property (const GValue * item, FindPropertyHelper * helper)
{
GstElement *element = g_value_get_object (item);
if (helper->need_sink && !element_is_sink (element)) {
return 1;
}
if (!element_has_property (element, helper->prop_name, helper->prop_type)) {
return 1;
}
GST_INFO_OBJECT (element, "found %s with %s property", helper->prop_name,
(helper->need_sink) ? "sink" : "element");
return 0; /* keep it */
}
/* FIXME: why not move these functions into core? */
/* find a sink in the hierarchy with a property named @name. This function does
* not increase the refcount of the returned object and thus remains valid as
* long as the bin is valid. */
static GstElement *
gst_play_sink_find_property_sinks (GstPlaySink * playsink, GstElement * obj,
const gchar * name, GType expected_type)
{
GstElement *result = NULL;
GstIterator *it;
if (element_has_property (obj, name, expected_type)) {
result = obj;
} else if (GST_IS_BIN (obj)) {
gboolean found;
GValue item = { 0, };
FindPropertyHelper helper = { name, expected_type, TRUE };
it = gst_bin_iterate_recurse (GST_BIN_CAST (obj));
found = gst_iterator_find_custom (it,
(GCompareFunc) find_property, &item, &helper);
gst_iterator_free (it);
if (found) {
result = g_value_get_object (&item);
/* we don't need the extra ref */
g_value_unset (&item);
}
}
return result;
}
/* find an object in the hierarchy with a property named @name */
static GstElement *
gst_play_sink_find_property (GstPlaySink * playsink, GstElement * obj,
const gchar * name, GType expected_type)
{
GstElement *result = NULL;
GstIterator *it;
if (GST_IS_BIN (obj)) {
gboolean found;
GValue item = { 0, };
FindPropertyHelper helper = { name, expected_type, FALSE };
it = gst_bin_iterate_recurse (GST_BIN_CAST (obj));
found = gst_iterator_find_custom (it,
(GCompareFunc) find_property, &item, &helper);
gst_iterator_free (it);
if (found) {
result = g_value_dup_object (&item);
g_value_unset (&item);
}
} else {
if (element_has_property (obj, name, expected_type)) {
result = obj;
gst_object_ref (obj);
}
}
return result;
}
static void
do_async_start (GstPlaySink * playsink)
{
GstMessage *message;
if (!playsink->need_async_start) {
GST_INFO_OBJECT (playsink, "no async_start needed");
return;
}
playsink->async_pending = TRUE;
GST_INFO_OBJECT (playsink, "Sending async_start message");
message = gst_message_new_async_start (GST_OBJECT_CAST (playsink));
GST_BIN_CLASS (gst_play_sink_parent_class)->handle_message (GST_BIN_CAST
(playsink), message);
}
static void
do_async_done (GstPlaySink * playsink)
{
GstMessage *message;
if (playsink->async_pending) {
GST_INFO_OBJECT (playsink, "Sending async_done message");
message =
gst_message_new_async_done (GST_OBJECT_CAST (playsink),
GST_CLOCK_TIME_NONE);
GST_BIN_CLASS (gst_play_sink_parent_class)->handle_message (GST_BIN_CAST
(playsink), message);
playsink->async_pending = FALSE;
}
playsink->need_async_start = FALSE;
}
/* try to change the state of an element. This function returns the element when
* the state change could be performed. When this function returns NULL an error
* occurred and the element is unreffed if @unref is TRUE. */
static GstElement *
try_element (GstPlaySink * playsink, GstElement * element, gboolean unref)
{
GstStateChangeReturn ret;
if (element) {
ret = gst_element_set_state (element, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_FAILURE) {
GST_DEBUG_OBJECT (playsink, "failed state change..");
gst_element_set_state (element, GST_STATE_NULL);
if (unref)
gst_object_unref (element);
element = NULL;
}
}
return element;
}
/* make the element (bin) that contains the elements needed to perform
* video deinterlacing. Only used for *raw* video streams.
*
* +---------------------------------------+
* | vbin |
* | +----------+ +-----------+ |
* | |colorspace| |deinterlace| |
* | +-sink src-sink src-+ |
* | | +----------+ +-----------+ | |
* sink-+ +-src
* +---------------------------------------+
*
*/
static GstPlayVideoDeinterlaceChain *
gen_video_deinterlace_chain (GstPlaySink * playsink)
{
GstPlayVideoDeinterlaceChain *chain;
GstBin *bin;
GstPad *pad;
GstElement *head = NULL, *prev = NULL;
chain = g_new0 (GstPlayVideoDeinterlaceChain, 1);
chain->chain.playsink = playsink;
GST_DEBUG_OBJECT (playsink, "making video deinterlace chain %p", chain);
/* create a bin to hold objects, as we create them we add them to this bin so
* that when something goes wrong we only need to unref the bin */
chain->chain.bin = gst_bin_new ("vdbin");
bin = GST_BIN_CAST (chain->chain.bin);
gst_object_ref_sink (bin);
GST_DEBUG_OBJECT (playsink, "creating " COLORSPACE);
chain->conv = gst_element_factory_make (COLORSPACE, "vdconv");
if (chain->conv == NULL) {
post_missing_element_message (playsink, COLORSPACE);
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
COLORSPACE), ("video rendering might fail"));
} else {
gst_bin_add (bin, chain->conv);
head = chain->conv;
prev = chain->conv;
}
GST_DEBUG_OBJECT (playsink, "creating deinterlace");
chain->deinterlace = gst_element_factory_make ("deinterlace", "deinterlace");
if (chain->deinterlace == NULL) {
post_missing_element_message (playsink, "deinterlace");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"deinterlace"), ("deinterlacing won't work"));
} else {
gst_bin_add (bin, chain->deinterlace);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->deinterlace, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = chain->deinterlace;
}
prev = chain->deinterlace;
}
if (head) {
pad = gst_element_get_static_pad (head, "sink");
chain->sinkpad = gst_ghost_pad_new ("sink", pad);
gst_object_unref (pad);
} else {
chain->sinkpad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
}
if (prev) {
pad = gst_element_get_static_pad (prev, "src");
chain->srcpad = gst_ghost_pad_new ("src", pad);
gst_object_unref (pad);
} else {
chain->srcpad = gst_ghost_pad_new ("src", chain->sinkpad);
}
gst_element_add_pad (chain->chain.bin, chain->sinkpad);
gst_element_add_pad (chain->chain.bin, chain->srcpad);
return chain;
link_failed:
{
GST_ELEMENT_ERROR (playsink, CORE, PAD,
(NULL), ("Failed to configure the video deinterlace chain."));
free_chain ((GstPlayChain *) chain);
return NULL;
}
}
static gboolean
is_valid_color_balance_element (GstColorBalance * bal)
{
gboolean have_brightness = FALSE;
gboolean have_contrast = FALSE;
gboolean have_hue = FALSE;
gboolean have_saturation = FALSE;
const GList *channels, *l;
channels = gst_color_balance_list_channels (bal);
for (l = channels; l; l = l->next) {
GstColorBalanceChannel *ch = l->data;
if (g_strrstr (ch->label, "BRIGHTNESS"))
have_brightness = TRUE;
else if (g_strrstr (ch->label, "CONTRAST"))
have_contrast = TRUE;
else if (g_strrstr (ch->label, "HUE"))
have_hue = TRUE;
else if (g_strrstr (ch->label, "SATURATION"))
have_saturation = TRUE;
}
return have_brightness && have_contrast && have_hue && have_saturation;
}
static void
iterate_color_balance_elements (const GValue * item, gpointer user_data)
{
gboolean valid;
GstColorBalance *cb, **cb_out = user_data;
cb = GST_COLOR_BALANCE (g_value_get_object (item));
valid = is_valid_color_balance_element (cb);
if (valid) {
if (*cb_out
&& gst_color_balance_get_balance_type (*cb_out) ==
GST_COLOR_BALANCE_SOFTWARE) {
gst_object_unref (*cb_out);
*cb_out = GST_COLOR_BALANCE (gst_object_ref (cb));
} else if (!*cb_out) {
*cb_out = GST_COLOR_BALANCE (gst_object_ref (cb));
}
}
}
static GstColorBalance *
find_color_balance_element (GstElement * element)
{
GstIterator *it;
GstColorBalance *cb = NULL;
if (GST_IS_COLOR_BALANCE (element)
&& is_valid_color_balance_element (GST_COLOR_BALANCE (element)))
return GST_COLOR_BALANCE (gst_object_ref (element));
else if (!GST_IS_BIN (element))
return FALSE;
it = gst_bin_iterate_all_by_interface (GST_BIN (element),
GST_TYPE_COLOR_BALANCE);
while (gst_iterator_foreach (it, iterate_color_balance_elements,
&cb) == GST_ITERATOR_RESYNC)
gst_iterator_resync (it);
gst_iterator_free (it);
return cb;
}
static void
colorbalance_value_changed_cb (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value, GstPlaySink * playsink)
{
GList *l;
gint i;
for (i = 0, l = playsink->colorbalance_channels; l; l = l->next, i++) {
GstColorBalanceChannel *proxy = l->data;
if (g_strrstr (channel->label, proxy->label)) {
gdouble new_val;
/* Convert to [0, 1] range */
new_val =
((gdouble) value -
(gdouble) channel->min_value) / ((gdouble) channel->max_value -
(gdouble) channel->min_value);
/* Convert to proxy range */
new_val =
proxy->min_value + new_val * ((gdouble) proxy->max_value -
(gdouble) proxy->min_value);
playsink->colorbalance_values[i] = (gint) (0.5 + new_val);
gst_color_balance_value_changed (GST_COLOR_BALANCE (playsink), proxy,
playsink->colorbalance_values[i]);
break;
}
}
}
static void
update_colorbalance (GstPlaySink * playsink)
{
GstColorBalance *balance = NULL;
GList *l;
gint i;
GST_OBJECT_LOCK (playsink);
if (playsink->colorbalance_element) {
balance =
GST_COLOR_BALANCE (gst_object_ref (playsink->colorbalance_element));
}
GST_OBJECT_UNLOCK (playsink);
if (!balance)
return;
g_signal_handler_block (balance, playsink->colorbalance_value_changed_id);
for (i = 0, l = playsink->colorbalance_channels; l; l = l->next, i++) {
GstColorBalanceChannel *proxy = l->data;
GstColorBalanceChannel *channel = NULL;
const GList *channels, *k;
gdouble new_val;
channels = gst_color_balance_list_channels (balance);
for (k = channels; k; k = k->next) {
GstColorBalanceChannel *tmp = k->data;
if (g_strrstr (tmp->label, proxy->label)) {
channel = tmp;
break;
}
}
g_assert (channel);
/* Convert to [0, 1] range */
new_val =
((gdouble) playsink->colorbalance_values[i] -
(gdouble) proxy->min_value) / ((gdouble) proxy->max_value -
(gdouble) proxy->min_value);
/* Convert to channel range */
new_val =
channel->min_value + new_val * ((gdouble) channel->max_value -
(gdouble) channel->min_value);
gst_color_balance_set_value (balance, channel, (gint) (new_val + 0.5));
}
g_signal_handler_unblock (balance, playsink->colorbalance_value_changed_id);
gst_object_unref (balance);
}
/* make the element (bin) that contains the elements needed to perform
* video display.
*
* +------------------------------------------------------------------------+
* | vbin |
* | +--------+ +-------+ +----------+ +----------+ +---------+ |
* | | filter | | queue | |colorspace| |videoscale| |videosink| |
* | +-sink src-sink src-sink src-sink src-sink | |
* | | +--------+ +-------+ +----------+ +----------+ +---------+ |
* sink-+ |
* +------------------------------------------------------------------------+
*
*/
static GstPlayVideoChain *
gen_video_chain (GstPlaySink * playsink, gboolean raw, gboolean async)
{
GstPlayVideoChain *chain;
GstBin *bin;
GstPad *pad;
GstElement *head = NULL, *prev = NULL, *elem = NULL;
chain = g_new0 (GstPlayVideoChain, 1);
chain->chain.playsink = playsink;
chain->chain.raw = raw;
GST_DEBUG_OBJECT (playsink, "making video chain %p", chain);
if (playsink->video_sink) {
GST_DEBUG_OBJECT (playsink, "trying configured videosink");
chain->sink = try_element (playsink, playsink->video_sink, FALSE);
} else {
/* only try fallback if no specific sink was chosen */
if (chain->sink == NULL) {
GST_DEBUG_OBJECT (playsink, "trying autovideosink");
elem = gst_element_factory_make ("autovideosink", "videosink");
chain->sink = try_element (playsink, elem, TRUE);
}
if (chain->sink == NULL) {
/* if default sink from config.h is different then try it too */
if (strcmp (DEFAULT_VIDEOSINK, "autovideosink")) {
GST_DEBUG_OBJECT (playsink, "trying " DEFAULT_VIDEOSINK);
elem = gst_element_factory_make (DEFAULT_VIDEOSINK, "videosink");
chain->sink = try_element (playsink, elem, TRUE);
}
}
if (chain->sink)
playsink->video_sink = gst_object_ref (chain->sink);
}
if (chain->sink == NULL)
goto no_sinks;
head = chain->sink;
/* if we can disable async behaviour of the sink, we can avoid adding a
* queue for the audio chain. */
elem =
gst_play_sink_find_property_sinks (playsink, chain->sink, "async",
G_TYPE_BOOLEAN);
if (elem) {
GST_DEBUG_OBJECT (playsink, "setting async property to %d on element %s",
async, GST_ELEMENT_NAME (elem));
g_object_set (elem, "async", async, NULL);
chain->async = async;
} else {
GST_DEBUG_OBJECT (playsink, "no async property on the sink");
chain->async = TRUE;
}
/* Make sure the aspect ratio is kept */
elem =
gst_play_sink_find_property_sinks (playsink, chain->sink,
"force-aspect-ratio", G_TYPE_BOOLEAN);
if (elem)
g_object_set (elem, "force-aspect-ratio", playsink->force_aspect_ratio,
NULL);
/* find ts-offset element */
gst_object_replace ((GstObject **) & chain->ts_offset, (GstObject *)
gst_play_sink_find_property_sinks (playsink, chain->sink, "ts-offset",
G_TYPE_INT64));
/* create a bin to hold objects, as we create them we add them to this bin so
* that when something goes wrong we only need to unref the bin */
chain->chain.bin = gst_bin_new ("vbin");
bin = GST_BIN_CAST (chain->chain.bin);
gst_object_ref_sink (bin);
gst_bin_add (bin, chain->sink);
/* Get the VideoOverlay element */
{
GstVideoOverlay *overlay = NULL;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
gst_object_unref (playsink->overlay_element);
playsink->overlay_element =
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (chain->chain.bin),
GST_TYPE_VIDEO_OVERLAY));
if (playsink->overlay_element)
overlay = GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
GST_OBJECT_UNLOCK (playsink);
if (overlay) {
if (playsink->overlay_handle_set)
gst_video_overlay_set_window_handle (overlay, playsink->overlay_handle);
if (playsink->overlay_handle_events_set)
gst_video_overlay_handle_events (overlay,
playsink->overlay_handle_events);
if (playsink->overlay_render_rectangle_set)
gst_video_overlay_set_render_rectangle (overlay,
playsink->overlay_x, playsink->overlay_y,
playsink->overlay_width, playsink->overlay_height);
gst_object_unref (overlay);
}
}
head = chain->sink;
prev = NULL;
/* add the video filter first, so everything is working with post-filter
* samples */
chain->filter = gst_play_sink_get_filter (playsink, GST_PLAY_SINK_TYPE_VIDEO);
if (chain->filter) {
if (!raw) {
gst_object_unref (chain->filter);
chain->filter = NULL;
if (playsink->flags & GST_PLAY_FLAG_FORCE_FILTERS) {
goto filter_with_nonraw;
} else {
GST_DEBUG_OBJECT (playsink,
"skipping video filter since we're not raw");
}
} else {
GST_DEBUG_OBJECT (playsink, "adding video filter");
chain->filter_conv =
gst_element_factory_make ("videoconvert", "filter-convert");
if (!chain->filter_conv) {
post_missing_element_message (playsink, "videoconvert");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"videoconvert"),
("video playback and visualizations might not work"));
} else {
gst_bin_add (bin, chain->filter_conv);
head = prev = chain->filter_conv;
}
gst_bin_add (bin, chain->filter);
/* Bin takes a new reference because we sinked any
* floating reference ourselves already */
gst_object_unref (chain->filter);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->filter, NULL,
GST_PAD_LINK_CHECK_TEMPLATE_CAPS)) {
goto link_failed;
}
} else {
head = chain->filter;
}
prev = chain->filter;
}
}
/* decouple decoder from sink, this improves playback quite a lot since the
* decoder can continue while the sink blocks for synchronisation. We don't
* need a lot of buffers as this consumes a lot of memory and we don't want
* too little because else we would be context switching too quickly. */
chain->queue = gst_element_factory_make ("queue", "vqueue");
if (chain->queue == NULL) {
post_missing_element_message (playsink, "queue");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"), ("video rendering might be suboptimal"));
} else {
g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
"max-size-bytes", 0, "max-size-time", (gint64) 0, "silent", TRUE, NULL);
gst_bin_add (bin, chain->queue);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->queue, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = chain->queue;
}
prev = chain->queue;
}
GST_OBJECT_LOCK (playsink);
if (playsink->colorbalance_element) {
g_signal_handler_disconnect (playsink->colorbalance_element,
playsink->colorbalance_value_changed_id);
gst_object_unref (playsink->colorbalance_element);
playsink->colorbalance_value_changed_id = 0;
}
playsink->colorbalance_element = find_color_balance_element (chain->sink);
if (playsink->colorbalance_element) {
playsink->colorbalance_value_changed_id =
g_signal_connect (playsink->colorbalance_element, "value-changed",
G_CALLBACK (colorbalance_value_changed_cb), playsink);
}
GST_OBJECT_UNLOCK (playsink);
if (!(playsink->flags & GST_PLAY_FLAG_NATIVE_VIDEO)
|| (!playsink->colorbalance_element
&& (playsink->flags & GST_PLAY_FLAG_SOFT_COLORBALANCE))) {
gboolean use_converters = !(playsink->flags & GST_PLAY_FLAG_NATIVE_VIDEO);
gboolean use_balance = !playsink->colorbalance_element
&& (playsink->flags & GST_PLAY_FLAG_SOFT_COLORBALANCE);
GST_DEBUG_OBJECT (playsink, "creating videoconverter");
chain->conv =
g_object_new (GST_TYPE_PLAY_SINK_VIDEO_CONVERT, "name", "vconv",
"use-converters", use_converters, "use-balance", use_balance, NULL);
GST_OBJECT_LOCK (playsink);
if (use_balance && GST_PLAY_SINK_VIDEO_CONVERT (chain->conv)->balance) {
playsink->colorbalance_element =
GST_COLOR_BALANCE (gst_object_ref (GST_PLAY_SINK_VIDEO_CONVERT
(chain->conv)->balance));
playsink->colorbalance_value_changed_id =
g_signal_connect (playsink->colorbalance_element, "value-changed",
G_CALLBACK (colorbalance_value_changed_cb), playsink);
}
GST_OBJECT_UNLOCK (playsink);
gst_bin_add (bin, chain->conv);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->conv, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = chain->conv;
}
prev = chain->conv;
}
update_colorbalance (playsink);
if (prev) {
GST_DEBUG_OBJECT (playsink, "linking to sink");
if (!gst_element_link_pads_full (prev, "src", chain->sink, NULL,
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
}
pad = gst_element_get_static_pad (head, "sink");
chain->sinkpad = gst_ghost_pad_new ("sink", pad);
/* sending audio/video flushes break stream changes when the pipeline
* is paused and played again in 0.10 */
#if 0
gst_pad_set_event_function (chain->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_video_sink_event));
gst_pad_set_chain_function (chain->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_video_sink_chain));
#endif
gst_object_unref (pad);
gst_element_add_pad (chain->chain.bin, chain->sinkpad);
return chain;
/* ERRORS */
no_sinks:
{
if (!elem && !playsink->video_sink) {
post_missing_element_message (playsink, "autovideosink");
if (strcmp (DEFAULT_VIDEOSINK, "autovideosink")) {
post_missing_element_message (playsink, DEFAULT_VIDEOSINK);
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Both autovideosink and %s elements are missing."),
DEFAULT_VIDEOSINK), (NULL));
} else {
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("The autovideosink element is missing.")), (NULL));
}
} else {
if (playsink->video_sink) {
GST_ELEMENT_ERROR (playsink, CORE, STATE_CHANGE,
(_("Configured videosink %s is not working."),
GST_ELEMENT_NAME (playsink->video_sink)), (NULL));
} else if (strcmp (DEFAULT_VIDEOSINK, "autovideosink")) {
GST_ELEMENT_ERROR (playsink, CORE, STATE_CHANGE,
(_("Both autovideosink and %s elements are not working."),
DEFAULT_VIDEOSINK), (NULL));
} else {
GST_ELEMENT_ERROR (playsink, CORE, STATE_CHANGE,
(_("The autovideosink element is not working.")), (NULL));
}
}
free_chain ((GstPlayChain *) chain);
return NULL;
}
link_failed:
{
GST_ELEMENT_ERROR (playsink, CORE, PAD,
(NULL), ("Failed to configure the video sink."));
goto cleanup;
}
filter_with_nonraw:
{
GST_ELEMENT_ERROR (playsink, CORE, NEGOTIATION,
(NULL), ("Cannot apply video-filter on non-raw stream"));
goto cleanup;
}
cleanup:
/* checking sink made it READY */
gst_element_set_state (chain->sink, GST_STATE_NULL);
/* Remove chain from the bin to allow reuse later */
gst_bin_remove (bin, chain->sink);
free_chain ((GstPlayChain *) chain);
return NULL;
}
static gboolean
setup_video_chain (GstPlaySink * playsink, gboolean raw, gboolean async)
{
GstElement *elem;
GstPlayVideoChain *chain;
GstStateChangeReturn ret;
chain = playsink->videochain;
/* if we have a filter, and raw-ness changed, we have to force a rebuild */
if (chain->filter && chain->chain.raw != raw)
return FALSE;
chain->chain.raw = raw;
/* if the chain was active we don't do anything */
if (GST_PLAY_CHAIN (chain)->activated)
return TRUE;
/* try to set the sink element to READY again */
ret = gst_element_set_state (chain->sink, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_FAILURE)
return FALSE;
/* Get the VideoOverlay element */
{
GstVideoOverlay *overlay = NULL;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
gst_object_unref (playsink->overlay_element);
playsink->overlay_element =
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (chain->chain.bin),
GST_TYPE_VIDEO_OVERLAY));
if (playsink->overlay_element)
overlay = GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
GST_OBJECT_UNLOCK (playsink);
if (overlay) {
if (playsink->overlay_handle_set)
gst_video_overlay_set_window_handle (overlay, playsink->overlay_handle);
if (playsink->overlay_handle_events_set)
gst_video_overlay_handle_events (overlay,
playsink->overlay_handle_events);
if (playsink->overlay_render_rectangle_set)
gst_video_overlay_set_render_rectangle (overlay,
playsink->overlay_x, playsink->overlay_y,
playsink->overlay_width, playsink->overlay_height);
gst_object_unref (overlay);
}
}
/* find ts-offset element */
gst_object_replace ((GstObject **) & chain->ts_offset, (GstObject *)
gst_play_sink_find_property_sinks (playsink, chain->sink, "ts-offset",
G_TYPE_INT64));
/* if we can disable async behaviour of the sink, we can avoid adding a
* queue for the audio chain. */
elem =
gst_play_sink_find_property_sinks (playsink, chain->sink, "async",
G_TYPE_BOOLEAN);
if (elem) {
GST_DEBUG_OBJECT (playsink, "setting async property to %d on element %s",
async, GST_ELEMENT_NAME (elem));
g_object_set (elem, "async", async, NULL);
chain->async = async;
} else {
GST_DEBUG_OBJECT (playsink, "no async property on the sink");
chain->async = TRUE;
}
/* Make sure the aspect ratio is kept */
elem =
gst_play_sink_find_property_sinks (playsink, chain->sink,
"force-aspect-ratio", G_TYPE_BOOLEAN);
if (elem)
g_object_set (elem, "force-aspect-ratio", playsink->force_aspect_ratio,
NULL);
GST_OBJECT_LOCK (playsink);
if (playsink->colorbalance_element) {
g_signal_handler_disconnect (playsink->colorbalance_element,
playsink->colorbalance_value_changed_id);
playsink->colorbalance_value_changed_id = 0;
gst_object_unref (playsink->colorbalance_element);
}
playsink->colorbalance_element = find_color_balance_element (chain->sink);
if (playsink->colorbalance_element) {
playsink->colorbalance_value_changed_id =
g_signal_connect (playsink->colorbalance_element, "value-changed",
G_CALLBACK (colorbalance_value_changed_cb), playsink);
}
GST_OBJECT_UNLOCK (playsink);
if (chain->conv) {
gboolean use_balance = !playsink->colorbalance_element
&& (playsink->flags & GST_PLAY_FLAG_SOFT_COLORBALANCE);
g_object_set (chain->conv, "use-balance", use_balance, NULL);
GST_OBJECT_LOCK (playsink);
if (use_balance && GST_PLAY_SINK_VIDEO_CONVERT (chain->conv)->balance) {
playsink->colorbalance_element =
GST_COLOR_BALANCE (gst_object_ref (GST_PLAY_SINK_VIDEO_CONVERT
(chain->conv)->balance));
playsink->colorbalance_value_changed_id =
g_signal_connect (playsink->colorbalance_element, "value-changed",
G_CALLBACK (colorbalance_value_changed_cb), playsink);
}
GST_OBJECT_UNLOCK (playsink);
}
update_colorbalance (playsink);
return TRUE;
}
static gboolean
gst_play_sink_sink_event (GstPad * pad, GstObject * parent, GstEvent * event,
const gchar * sink_type,
gboolean * sink_ignore_wrong_state,
gboolean * sink_custom_flush_finished, gboolean * sink_pending_flush)
{
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_object_get_parent (parent));
gboolean ret;
const GstStructure *structure = gst_event_get_structure (event);
if (GST_EVENT_TYPE (event) == GST_EVENT_CUSTOM_DOWNSTREAM_OOB && structure) {
gchar *custom_flush;
gchar *custom_flush_finish;
custom_flush = g_strdup_printf ("playsink-custom-%s-flush", sink_type);
custom_flush_finish =
g_strdup_printf ("playsink-custom-%s-flush-finish", sink_type);
if (strcmp (gst_structure_get_name (structure), custom_flush) == 0) {
GST_DEBUG_OBJECT (pad,
"Custom %s flush event received, marking to flush %s", sink_type,
sink_type);
GST_PLAY_SINK_LOCK (playsink);
*sink_ignore_wrong_state = TRUE;
*sink_custom_flush_finished = FALSE;
GST_PLAY_SINK_UNLOCK (playsink);
} else if (strcmp (gst_structure_get_name (structure),
custom_flush_finish) == 0) {
GST_DEBUG_OBJECT (pad, "Custom %s flush finish event received",
sink_type);
GST_PLAY_SINK_LOCK (playsink);
*sink_pending_flush = TRUE;
*sink_custom_flush_finished = TRUE;
GST_PLAY_SINK_UNLOCK (playsink);
}
g_free (custom_flush);
g_free (custom_flush_finish);
}
GST_DEBUG_OBJECT (pad, "Forwarding event %" GST_PTR_FORMAT, event);
ret = gst_pad_event_default (pad, parent, gst_event_ref (event));
gst_event_unref (event);
gst_object_unref (playsink);
return ret;
}
static GstFlowReturn
gst_play_sink_sink_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer,
const gchar * sink_type,
gboolean * sink_ignore_wrong_state,
gboolean * sink_custom_flush_finished, gboolean * sink_pending_flush)
{
GstBin *tbin = GST_BIN_CAST (gst_pad_get_parent (pad));
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_pad_get_parent (tbin));
GstFlowReturn ret;
GST_PLAY_SINK_LOCK (playsink);
if (*sink_pending_flush) {
GstEvent *segment_event;
GstEvent *event;
GstStructure *structure;
*sink_pending_flush = FALSE;
GST_PLAY_SINK_UNLOCK (playsink);
segment_event = gst_pad_get_sticky_event (pad, GST_EVENT_SEGMENT, 0);
/* make the bin drop all cached data.
* This event will be dropped on the src pad, if any. */
event = gst_event_new_flush_start ();
if (segment_event)
gst_event_set_seqnum (event, gst_event_get_seqnum (segment_event));
structure = gst_event_writable_structure (event);
gst_structure_id_set (structure,
_playsink_reset_segment_event_marker_id, G_TYPE_BOOLEAN, TRUE, NULL);
GST_DEBUG_OBJECT (pad,
"Pushing %s flush-start event with reset segment marker set: %"
GST_PTR_FORMAT, sink_type, event);
gst_pad_send_event (pad, event);
/* make queue drop all cached data.
* This event will be dropped on the src pad. */
event = gst_event_new_flush_stop (TRUE);
if (segment_event)
gst_event_set_seqnum (event, gst_event_get_seqnum (segment_event));
structure = gst_event_writable_structure (event);
gst_structure_id_set (structure,
_playsink_reset_segment_event_marker_id, G_TYPE_BOOLEAN, TRUE, NULL);
GST_DEBUG_OBJECT (pad,
"Pushing %s flush-stop event with reset segment marker set: %"
GST_PTR_FORMAT, sink_type, event);
gst_pad_send_event (pad, event);
/* Re-sync queue segment info after flush-stop.
* This event will be dropped on the src pad. */
if (segment_event) {
event = gst_event_copy (segment_event);
structure = gst_event_writable_structure (event);
gst_structure_id_set (structure,
_playsink_reset_segment_event_marker_id, G_TYPE_BOOLEAN, TRUE, NULL);
GST_DEBUG_OBJECT (playsink,
"Pushing segment event with reset "
"segment marker set: %" GST_PTR_FORMAT, event);
gst_pad_send_event (pad, event);
gst_event_unref (segment_event);
}
} else {
GST_PLAY_SINK_UNLOCK (playsink);
}
ret = gst_proxy_pad_chain_default (pad, parent, buffer);
GST_PLAY_SINK_LOCK (playsink);
if (ret == GST_FLOW_FLUSHING && *sink_ignore_wrong_state) {
GST_DEBUG_OBJECT (pad, "Ignoring wrong state for %s during flush",
sink_type);
if (*sink_custom_flush_finished) {
GST_DEBUG_OBJECT (pad, "Custom flush finished, stop ignoring "
"wrong state for %s", sink_type);
*sink_ignore_wrong_state = FALSE;
}
ret = GST_FLOW_OK;
}
GST_PLAY_SINK_UNLOCK (playsink);
gst_object_unref (playsink);
gst_object_unref (tbin);
return ret;
}
/* sending audio/video flushes break stream changes when the pipeline
* is paused and played again in 0.10 */
#if 0
static gboolean
gst_play_sink_video_sink_event (GstPad * pad, GstEvent * event)
{
GstBin *tbin = GST_BIN_CAST (gst_pad_get_parent (pad));
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_pad_get_parent (tbin));
gboolean ret;
ret = gst_play_sink_sink_event (pad, event, "video",
&playsink->video_ignore_wrong_state,
&playsink->video_custom_flush_finished,
&playsink->video_pending_flush, &playsink->video_segment);
gst_object_unref (playsink);
gst_object_unref (tbin);
return ret;
}
static GstFlowReturn
gst_play_sink_video_sink_chain (GstPad * pad, GstBuffer * buffer)
{
GstBin *tbin = GST_BIN_CAST (gst_pad_get_parent (pad));
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_pad_get_parent (tbin));
gboolean ret;
ret = gst_play_sink_sink_chain (pad, buffer, "video",
&playsink->video_ignore_wrong_state,
&playsink->video_custom_flush_finished,
&playsink->video_pending_flush, &playsink->video_segment);
gst_object_unref (playsink);
gst_object_unref (tbin);
return ret;
}
static gboolean
gst_play_sink_audio_sink_event (GstPad * pad, GstEvent * event)
{
GstBin *tbin = GST_BIN_CAST (gst_pad_get_parent (pad));
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_pad_get_parent (tbin));
gboolean ret;
ret = gst_play_sink_sink_event (pad, event, "audio",
&playsink->audio_ignore_wrong_state,
&playsink->audio_custom_flush_finished,
&playsink->audio_pending_flush, &playsink->audio_segment);
gst_object_unref (playsink);
gst_object_unref (tbin);
return ret;
}
static GstFlowReturn
gst_play_sink_audio_sink_chain (GstPad * pad, GstBuffer * buffer)
{
GstBin *tbin = GST_BIN_CAST (gst_pad_get_parent (pad));
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_pad_get_parent (tbin));
gboolean ret;
ret = gst_play_sink_sink_chain (pad, buffer, "audio",
&playsink->audio_ignore_wrong_state,
&playsink->audio_custom_flush_finished,
&playsink->audio_pending_flush, &playsink->audio_segment);
gst_object_unref (playsink);
gst_object_unref (tbin);
return ret;
}
#endif
static gboolean
gst_play_sink_text_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_object_get_parent (parent));
gboolean ret;
ret = gst_play_sink_sink_event (pad, parent, event, "subtitle",
&playsink->text_ignore_wrong_state,
&playsink->text_custom_flush_finished, &playsink->text_pending_flush);
gst_object_unref (playsink);
return ret;
}
static GstFlowReturn
gst_play_sink_text_sink_chain (GstPad * pad, GstObject * parent,
GstBuffer * buffer)
{
gboolean ret;
GstPlaySink *playsink = GST_PLAY_SINK_CAST (gst_object_get_parent (parent));
ret = gst_play_sink_sink_chain (pad, parent, buffer, "subtitle",
&playsink->text_ignore_wrong_state,
&playsink->text_custom_flush_finished, &playsink->text_pending_flush);
gst_object_unref (playsink);
return ret;
}
static gboolean
gst_play_sink_text_src_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
gboolean ret;
const GstStructure *structure;
GST_DEBUG_OBJECT (pad, "Got event %" GST_PTR_FORMAT, event);
structure = gst_event_get_structure (event);
if (structure &&
gst_structure_id_has_field (structure,
_playsink_reset_segment_event_marker_id)) {
/* the events marked with a reset segment marker
* are sent internally to reset the queue and
* must be dropped here */
GST_DEBUG_OBJECT (pad, "Dropping event with reset "
"segment marker set: %" GST_PTR_FORMAT, event);
ret = TRUE;
goto out;
}
ret = gst_pad_event_default (pad, parent, gst_event_ref (event));
out:
gst_event_unref (event);
return ret;
}
/* make an element for playback of video with subtitles embedded.
* Only used for *raw* video streams.
*
* +--------------------------------------------+
* | tbin |
* | +--------+ +-----------------+ |
* | | queue | | subtitleoverlay | |
* video--src sink---video_sink | |
* | +--------+ | src--src
* text------------------text_sink | |
* | +-----------------+ |
* +--------------------------------------------+
*
*/
static GstPlayTextChain *
gen_text_chain (GstPlaySink * playsink)
{
GstPlayTextChain *chain;
GstBin *bin;
GstElement *elem;
GstPad *videosinkpad, *textsinkpad, *srcpad;
chain = g_new0 (GstPlayTextChain, 1);
chain->chain.playsink = playsink;
GST_DEBUG_OBJECT (playsink, "making text chain %p", chain);
chain->chain.bin = gst_bin_new ("tbin");
bin = GST_BIN_CAST (chain->chain.bin);
gst_object_ref_sink (bin);
videosinkpad = textsinkpad = srcpad = NULL;
/* first try to hook the text pad to the custom sink */
if (playsink->text_sink) {
GST_DEBUG_OBJECT (playsink, "trying configured textsink");
chain->sink = try_element (playsink, playsink->text_sink, FALSE);
if (chain->sink) {
elem =
gst_play_sink_find_property_sinks (playsink, chain->sink, "async",
G_TYPE_BOOLEAN);
if (elem) {
/* make sure the sparse subtitles don't participate in the preroll */
g_object_set (elem, "async", FALSE, NULL);
GST_DEBUG_OBJECT (playsink, "adding custom text sink");
gst_bin_add (bin, chain->sink);
/* NOTE streamsynchronizer needs streams decoupled */
/* make a little queue */
chain->queue = gst_element_factory_make ("queue", "subqueue");
if (chain->queue == NULL) {
post_missing_element_message (playsink, "queue");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"), ("rendering might be suboptimal"));
} else {
g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
"max-size-bytes", 0, "max-size-time", (gint64) GST_SECOND,
"silent", TRUE, NULL);
gst_bin_add (bin, chain->queue);
}
/* we have a custom sink, this will be our textsinkpad */
if (gst_element_link_pads_full (chain->queue, "src", chain->sink,
"sink", GST_PAD_LINK_CHECK_TEMPLATE_CAPS)) {
/* we're all fine now and we can add the sink to the chain */
GST_DEBUG_OBJECT (playsink, "using custom text sink");
textsinkpad = gst_element_get_static_pad (chain->queue, "sink");
} else {
GST_WARNING_OBJECT (playsink,
"can't find a sink pad on custom text sink");
gst_bin_remove (bin, chain->sink);
gst_bin_remove (bin, chain->queue);
chain->sink = NULL;
chain->queue = NULL;
}
/* try to set sync to true but it's no biggie when we can't */
if (chain->sink && (elem =
gst_play_sink_find_property_sinks (playsink, chain->sink,
"sync", G_TYPE_BOOLEAN)))
g_object_set (elem, "sync", TRUE, NULL);
if (!textsinkpad)
gst_bin_remove (bin, chain->sink);
} else {
GST_WARNING_OBJECT (playsink,
"can't find async property in custom text sink");
}
}
if (textsinkpad == NULL) {
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Custom text sink element is not usable.")),
("fallback to default subtitleoverlay"));
}
}
if (textsinkpad == NULL) {
if (!(playsink->flags & GST_PLAY_FLAG_NATIVE_VIDEO)) {
/* make a little queue */
chain->queue = gst_element_factory_make ("queue", "vqueue");
if (chain->queue == NULL) {
post_missing_element_message (playsink, "queue");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"), ("video rendering might be suboptimal"));
} else {
g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
"max-size-bytes", 0, "max-size-time", (gint64) 0,
"silent", TRUE, NULL);
gst_bin_add (bin, chain->queue);
videosinkpad = gst_element_get_static_pad (chain->queue, "sink");
}
chain->overlay =
gst_element_factory_make ("subtitleoverlay", "suboverlay");
if (chain->overlay == NULL) {
post_missing_element_message (playsink, "subtitleoverlay");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"subtitleoverlay"), ("subtitle rendering disabled"));
} else {
GstElement *element;
gst_bin_add (bin, chain->overlay);
g_object_set (G_OBJECT (chain->overlay), "silent", FALSE, NULL);
if (playsink->font_desc) {
g_object_set (G_OBJECT (chain->overlay), "font-desc",
playsink->font_desc, NULL);
}
if (playsink->subtitle_encoding) {
g_object_set (G_OBJECT (chain->overlay), "subtitle-encoding",
playsink->subtitle_encoding, NULL);
}
gst_element_link_pads_full (chain->queue, "src", chain->overlay,
"video_sink", GST_PAD_LINK_CHECK_TEMPLATE_CAPS);
/* make another little queue to decouple streams */
element = gst_element_factory_make ("queue", "subqueue");
if (element == NULL) {
post_missing_element_message (playsink, "queue");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"), ("rendering might be suboptimal"));
} else {
g_object_set (G_OBJECT (element), "max-size-buffers", 3,
"max-size-bytes", 0, "max-size-time", (gint64) GST_SECOND,
"silent", TRUE, NULL);
gst_bin_add (bin, element);
if (gst_element_link_pads_full (element, "src", chain->overlay,
"subtitle_sink", GST_PAD_LINK_CHECK_TEMPLATE_CAPS)) {
textsinkpad = gst_element_get_static_pad (element, "sink");
srcpad = gst_element_get_static_pad (chain->overlay, "src");
} else {
gst_bin_remove (bin, chain->sink);
gst_bin_remove (bin, chain->overlay);
chain->sink = NULL;
chain->overlay = NULL;
gst_object_unref (videosinkpad);
videosinkpad = NULL;
}
}
}
}
}
if (videosinkpad == NULL) {
/* if we still don't have a videosink, we don't have an overlay. the only
* thing we can do is insert an identity and ghost the src
* and sink pads. */
chain->identity = gst_element_factory_make ("identity", "tidentity");
if (chain->identity == NULL) {
post_missing_element_message (playsink, "identity");
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"identity"), (NULL));
} else {
g_object_set (chain->identity, "signal-handoffs", FALSE, NULL);
g_object_set (chain->identity, "silent", TRUE, NULL);
gst_bin_add (bin, chain->identity);
srcpad = gst_element_get_static_pad (chain->identity, "src");
videosinkpad = gst_element_get_static_pad (chain->identity, "sink");
}
}
/* expose the ghostpads */
if (videosinkpad) {
chain->videosinkpad = gst_ghost_pad_new ("sink", videosinkpad);
gst_object_unref (videosinkpad);
gst_element_add_pad (chain->chain.bin, chain->videosinkpad);
}
if (textsinkpad) {
chain->textsinkpad = gst_ghost_pad_new ("text_sink", textsinkpad);
gst_object_unref (textsinkpad);
gst_pad_set_event_function (chain->textsinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_text_sink_event));
gst_pad_set_chain_function (chain->textsinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_text_sink_chain));
gst_element_add_pad (chain->chain.bin, chain->textsinkpad);
}
if (srcpad) {
chain->srcpad = gst_ghost_pad_new ("src", srcpad);
gst_object_unref (srcpad);
gst_pad_set_event_function (chain->srcpad,
GST_DEBUG_FUNCPTR (gst_play_sink_text_src_event));
gst_element_add_pad (chain->chain.bin, chain->srcpad);
}
return chain;
}
static void
notify_volume_cb (GObject * object, GParamSpec * pspec, GstPlaySink * playsink)
{
gdouble vol;
g_object_get (object, "volume", &vol, NULL);
playsink->volume = vol;
g_object_notify (G_OBJECT (playsink), "volume");
}
static void
notify_mute_cb (GObject * object, GParamSpec * pspec, GstPlaySink * playsink)
{
gboolean mute;
g_object_get (object, "mute", &mute, NULL);
playsink->mute = mute;
g_object_notify (G_OBJECT (playsink), "mute");
}
/* make the chain that contains the elements needed to perform
* audio playback.
*
* We add a tee as the first element so that we can link the visualisation chain
* to it when requested.
*
* +--------------------------------------------------------------+
* | abin |
* | +----------+ +--------+ +---------+ +-----------+ |
* | | filter | | queue | | convbin | | audiosink | |
* | +-sink src-sink src-sink src-sink | |
* | | +----------+ +--------+ +---------+ +-----------+ |
* sink-+ |
* +--------------------------------------------------------------+
*/
static GstPlayAudioChain *
gen_audio_chain (GstPlaySink * playsink, gboolean raw)
{
GstPlayAudioChain *chain;
GstBin *bin;
gboolean have_volume;
GstPad *pad;
GstElement *head, *prev, *elem = NULL;
chain = g_new0 (GstPlayAudioChain, 1);
chain->chain.playsink = playsink;
chain->chain.raw = raw;
GST_DEBUG_OBJECT (playsink, "making audio chain %p", chain);
if (playsink->audio_sink) {
GST_DEBUG_OBJECT (playsink, "trying configured audiosink %" GST_PTR_FORMAT,
playsink->audio_sink);
chain->sink = try_element (playsink, playsink->audio_sink, FALSE);
} else {
/* only try fallback if no specific sink was chosen */
if (chain->sink == NULL) {
GST_DEBUG_OBJECT (playsink, "trying autoaudiosink");
elem = gst_element_factory_make ("autoaudiosink", "audiosink");
chain->sink = try_element (playsink, elem, TRUE);
}
if (chain->sink == NULL) {
/* if default sink from config.h is different then try it too */
if (strcmp (DEFAULT_AUDIOSINK, "autoaudiosink")) {
GST_DEBUG_OBJECT (playsink, "trying " DEFAULT_AUDIOSINK);
elem = gst_element_factory_make (DEFAULT_AUDIOSINK, "audiosink");
chain->sink = try_element (playsink, elem, TRUE);
}
}
if (chain->sink)
playsink->audio_sink = gst_object_ref (chain->sink);
}
if (chain->sink == NULL)
goto no_sinks;
chain->chain.bin = gst_bin_new ("abin");
bin = GST_BIN_CAST (chain->chain.bin);
gst_object_ref_sink (bin);
gst_bin_add (bin, chain->sink);
head = chain->sink;
prev = NULL;
/* add the audio filter first, so everything is working with post-filter
* samples */
chain->filter = gst_play_sink_get_filter (playsink, GST_PLAY_SINK_TYPE_AUDIO);
if (chain->filter) {
if (!raw) {
gst_object_unref (chain->filter);
chain->filter = NULL;
if (playsink->flags & GST_PLAY_FLAG_FORCE_FILTERS) {
goto filter_with_nonraw;
} else {
GST_DEBUG_OBJECT (playsink,
"skipping audio filter since we're not raw");
}
} else {
GST_DEBUG_OBJECT (playsink, "adding audio filter");
chain->filter_conv =
gst_element_factory_make ("audioconvert", "filter-convert");
if (!chain->filter_conv) {
post_missing_element_message (playsink, "audioconvert");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"audioconvert"),
("audio playback and visualizations might not work"));
} else {
gst_bin_add (bin, chain->filter_conv);
head = prev = chain->filter_conv;
}
gst_bin_add (bin, chain->filter);
/* Bin takes a new reference because we sinked any
* floating reference ourselves already */
gst_object_unref (chain->filter);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->filter, NULL,
GST_PAD_LINK_CHECK_TEMPLATE_CAPS)) {
goto link_failed;
}
} else {
head = chain->filter;
}
prev = chain->filter;
}
}
/* we have to add a queue when we need to decouple for the video sink in
* visualisations and for streamsynchronizer */
GST_DEBUG_OBJECT (playsink, "adding audio queue");
chain->queue = gst_element_factory_make ("queue", "aqueue");
if (chain->queue == NULL) {
post_missing_element_message (playsink, "queue");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"), ("audio playback and visualizations might not work"));
} else {
g_object_set (chain->queue, "silent", TRUE, NULL);
gst_bin_add (bin, chain->queue);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->queue, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = chain->queue;
}
prev = chain->queue;
}
/* find ts-offset element */
gst_object_replace ((GstObject **) & chain->ts_offset, (GstObject *)
gst_play_sink_find_property_sinks (playsink, chain->sink, "ts-offset",
G_TYPE_INT64));
/* check if the sink, or something within the sink, implements the
* streamvolume interface. If it does we don't need to add a volume element. */
if (GST_IS_BIN (chain->sink))
elem =
gst_bin_get_by_interface (GST_BIN_CAST (chain->sink),
GST_TYPE_STREAM_VOLUME);
else if (GST_IS_STREAM_VOLUME (chain->sink))
elem = gst_object_ref (chain->sink);
else
elem = NULL;
chain->notify_volume_id = chain->notify_mute_id = 0;
if (elem) {
chain->volume = elem;
chain->notify_volume_id = g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
GST_DEBUG_OBJECT (playsink, "the sink has a volume property");
have_volume = TRUE;
chain->sink_volume = TRUE;
chain->notify_mute_id = g_signal_connect (chain->volume, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
/* use the sink to control the volume and mute */
if (playsink->volume_changed) {
g_object_set (G_OBJECT (chain->volume), "volume", playsink->volume, NULL);
playsink->volume_changed = FALSE;
}
if (playsink->mute_changed) {
g_object_set (chain->volume, "mute", playsink->mute, NULL);
playsink->mute_changed = FALSE;
}
} else {
/* no volume, we need to add a volume element when we can */
GST_DEBUG_OBJECT (playsink, "the sink has no volume property");
have_volume = FALSE;
chain->sink_volume = FALSE;
}
if (!(playsink->flags & GST_PLAY_FLAG_NATIVE_AUDIO) || (!have_volume
&& (playsink->flags & GST_PLAY_FLAG_SOFT_VOLUME))) {
gboolean use_converters = !(playsink->flags & GST_PLAY_FLAG_NATIVE_AUDIO);
gboolean use_volume =
!have_volume && (playsink->flags & GST_PLAY_FLAG_SOFT_VOLUME);
GST_DEBUG_OBJECT (playsink,
"creating audioconvert with use-converters %d, use-volume %d",
use_converters, use_volume);
chain->conv =
g_object_new (GST_TYPE_PLAY_SINK_AUDIO_CONVERT, "name", "aconv",
"use-converters", use_converters, "use-volume", use_volume, NULL);
gst_bin_add (bin, chain->conv);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", chain->conv, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = chain->conv;
}
prev = chain->conv;
if (!have_volume && (playsink->flags & GST_PLAY_FLAG_SOFT_VOLUME)) {
GstPlaySinkAudioConvert *conv =
GST_PLAY_SINK_AUDIO_CONVERT_CAST (chain->conv);
if (conv->volume) {
chain->volume = conv->volume;
have_volume = TRUE;
chain->notify_volume_id =
g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
/* volume also has the mute property */
chain->notify_mute_id = g_signal_connect (chain->volume, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
/* configure with the latest volume and mute */
g_object_set (G_OBJECT (chain->volume), "volume", playsink->volume,
NULL);
g_object_set (G_OBJECT (chain->volume), "mute", playsink->mute, NULL);
}
}
}
if (prev) {
/* we only have to link to the previous element if we have something in
* front of the sink */
GST_DEBUG_OBJECT (playsink, "linking to sink");
if (!gst_element_link_pads_full (prev, "src", chain->sink, NULL,
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
}
/* post a warning if we have no way to configure the volume */
if (!have_volume) {
GST_ELEMENT_WARNING (playsink, STREAM, NOT_IMPLEMENTED,
(_("No volume control found")), ("Volume/mute is not available"));
}
/* and ghost the sinkpad of the headmost element */
GST_DEBUG_OBJECT (playsink, "ghosting sink pad");
pad = gst_element_get_static_pad (head, "sink");
chain->sinkpad = gst_ghost_pad_new ("sink", pad);
/* sending audio/video flushes break stream changes when the pipeline
* is paused and played again in 0.10 */
#if 0
gst_pad_set_event_function (chain->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_audio_sink_event));
gst_pad_set_chain_function (chain->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_audio_sink_chain));
#endif
gst_object_unref (pad);
gst_element_add_pad (chain->chain.bin, chain->sinkpad);
return chain;
/* ERRORS */
no_sinks:
{
if (!elem && !playsink->audio_sink) {
post_missing_element_message (playsink, "autoaudiosink");
if (strcmp (DEFAULT_AUDIOSINK, "autoaudiosink")) {
post_missing_element_message (playsink, DEFAULT_AUDIOSINK);
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Both autoaudiosink and %s elements are missing."),
DEFAULT_AUDIOSINK), (NULL));
} else {
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("The autoaudiosink element is missing.")), (NULL));
}
} else {
if (playsink->audio_sink) {
GST_ELEMENT_ERROR (playsink, CORE, STATE_CHANGE,
(_("Configured audiosink %s is not working."),
GST_ELEMENT_NAME (playsink->audio_sink)), (NULL));
} else if (strcmp (DEFAULT_AUDIOSINK, "autoaudiosink")) {
GST_ELEMENT_ERROR (playsink, CORE, STATE_CHANGE,
(_("Both autoaudiosink and %s elements are not working."),
DEFAULT_AUDIOSINK), (NULL));
} else {
GST_ELEMENT_ERROR (playsink, CORE, STATE_CHANGE,
(_("The autoaudiosink element is not working.")), (NULL));
}
}
free_chain ((GstPlayChain *) chain);
return NULL;
}
link_failed:
{
GST_ELEMENT_ERROR (playsink, CORE, PAD,
(NULL), ("Failed to configure the audio sink."));
goto cleanup;
}
filter_with_nonraw:
{
GST_ELEMENT_ERROR (playsink, CORE, NEGOTIATION,
(NULL), ("Cannot apply video-filter on non-raw stream"));
goto cleanup;
}
cleanup:
/* checking sink made it READY */
gst_element_set_state (chain->sink, GST_STATE_NULL);
/* Remove chain from the bin to allow reuse later */
gst_bin_remove (bin, chain->sink);
free_chain ((GstPlayChain *) chain);
return NULL;
}
static gboolean
setup_audio_chain (GstPlaySink * playsink, gboolean raw)
{
GstElement *elem;
GstPlayAudioChain *chain;
GstStateChangeReturn ret;
GstPlaySinkAudioConvert *conv;
chain = playsink->audiochain;
conv = GST_PLAY_SINK_AUDIO_CONVERT_CAST (chain->conv);
/* if we have a filter, and raw-ness changed, we have to force a rebuild */
if (chain->filter && chain->chain.raw != raw)
return FALSE;
chain->chain.raw = raw;
/* if the chain was active we don't do anything */
if (GST_PLAY_CHAIN (chain)->activated)
return TRUE;
/* try to set the sink element to READY again */
ret = gst_element_set_state (chain->sink, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_FAILURE)
return FALSE;
/* find ts-offset element */
gst_object_replace ((GstObject **) & chain->ts_offset, (GstObject *)
gst_play_sink_find_property_sinks (playsink, chain->sink, "ts-offset",
G_TYPE_INT64));
/* Disconnect signals */
disconnect_audio_chain (chain, playsink);
/* check if the sink, or something within the sink, implements the
* streamvolume interface. If it does we don't need to add a volume element. */
if (GST_IS_BIN (chain->sink))
elem =
gst_bin_get_by_interface (GST_BIN_CAST (chain->sink),
GST_TYPE_STREAM_VOLUME);
else if (GST_IS_STREAM_VOLUME (chain->sink))
elem = gst_object_ref (chain->sink);
else
elem = NULL;
if (elem) {
chain->volume = elem;
if (playsink->volume_changed) {
GST_DEBUG_OBJECT (playsink, "the sink has a volume property, setting %f",
playsink->volume);
/* use the sink to control the volume */
g_object_set (G_OBJECT (chain->volume), "volume", playsink->volume, NULL);
playsink->volume_changed = FALSE;
}
chain->notify_volume_id = g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
chain->notify_mute_id = g_signal_connect (chain->volume, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
g_object_set (chain->volume, "mute", playsink->mute, NULL);
playsink->mute_changed = FALSE;
g_object_set (chain->conv, "use-volume", FALSE, NULL);
} else if (conv) {
/* no volume, we need to add a volume element when we can */
g_object_set (chain->conv, "use-volume",
! !(playsink->flags & GST_PLAY_FLAG_SOFT_VOLUME), NULL);
GST_DEBUG_OBJECT (playsink, "the sink has no volume property");
if (conv->volume && (playsink->flags & GST_PLAY_FLAG_SOFT_VOLUME)) {
chain->volume = conv->volume;
chain->notify_volume_id =
g_signal_connect (chain->volume, "notify::volume",
G_CALLBACK (notify_volume_cb), playsink);
chain->notify_mute_id = g_signal_connect (chain->volume, "notify::mute",
G_CALLBACK (notify_mute_cb), playsink);
/* configure with the latest volume and mute */
g_object_set (G_OBJECT (chain->volume), "volume", playsink->volume, NULL);
g_object_set (G_OBJECT (chain->volume), "mute", playsink->mute, NULL);
}
GST_DEBUG_OBJECT (playsink, "reusing existing volume element");
}
return TRUE;
}
/*
* +-------------------------------------------------------------------+
* | visbin |
* | +----------+ +------------+ +----------+ +-------+ |
* | | visqueue | | audioconv | | audiores | | vis | |
* | +-sink src-sink + samp src-sink src-sink src-+ |
* | | +----------+ +------------+ +----------+ +-------+ | |
* sink-+ +-src
* +-------------------------------------------------------------------+
*
*/
static GstPlayVisChain *
gen_vis_chain (GstPlaySink * playsink)
{
GstPlayVisChain *chain;
GstBin *bin;
gboolean res;
GstPad *pad;
GstElement *elem;
chain = g_new0 (GstPlayVisChain, 1);
chain->chain.playsink = playsink;
GST_DEBUG_OBJECT (playsink, "making vis chain %p", chain);
chain->chain.bin = gst_bin_new ("visbin");
bin = GST_BIN_CAST (chain->chain.bin);
gst_object_ref_sink (bin);
/* we're queuing raw audio here, we can remove this queue when we can disable
* async behaviour in the video sink. */
chain->queue = gst_element_factory_make ("queue", "visqueue");
if (chain->queue == NULL)
goto no_queue;
g_object_set (chain->queue, "silent", TRUE, NULL);
gst_bin_add (bin, chain->queue);
chain->conv = gst_element_factory_make ("audioconvert", "aconv");
if (chain->conv == NULL)
goto no_audioconvert;
gst_bin_add (bin, chain->conv);
chain->resample = gst_element_factory_make ("audioresample", "aresample");
if (chain->resample == NULL)
goto no_audioresample;
gst_bin_add (bin, chain->resample);
/* this pad will be used for blocking the dataflow and switching the vis
* plugin, we block right after the queue, this makes it possible for the
* resample and convert to convert to a format supported by the new vis
* plugin */
chain->blockpad = gst_element_get_static_pad (chain->queue, "src");
/* this is the pad where the vis is linked to */
chain->vispeerpad = gst_element_get_static_pad (chain->resample, "src");
if (playsink->visualisation) {
GST_DEBUG_OBJECT (playsink, "trying configure vis");
chain->vis = try_element (playsink, playsink->visualisation, FALSE);
}
if (chain->vis == NULL) {
GST_DEBUG_OBJECT (playsink, "trying goom");
elem = gst_element_factory_make ("goom", "vis");
chain->vis = try_element (playsink, elem, TRUE);
gst_object_replace ((GstObject **) & playsink->visualisation,
(GstObject *) elem);
}
if (chain->vis == NULL)
goto no_goom;
gst_bin_add (bin, chain->vis);
res = gst_element_link_pads_full (chain->queue, "src", chain->conv, "sink",
GST_PAD_LINK_CHECK_NOTHING);
res &=
gst_element_link_pads_full (chain->conv, "src", chain->resample, "sink",
GST_PAD_LINK_CHECK_NOTHING);
res &=
gst_element_link_pads_full (chain->resample, "src", chain->vis, "sink",
GST_PAD_LINK_CHECK_NOTHING);
if (!res)
goto link_failed;
chain->vissinkpad = gst_element_get_static_pad (chain->vis, "sink");
chain->vissrcpad = gst_element_get_static_pad (chain->vis, "src");
pad = gst_element_get_static_pad (chain->queue, "sink");
chain->sinkpad = gst_ghost_pad_new ("sink", pad);
gst_object_unref (pad);
gst_element_add_pad (chain->chain.bin, chain->sinkpad);
chain->srcpad = gst_ghost_pad_new ("src", chain->vissrcpad);
gst_element_add_pad (chain->chain.bin, chain->srcpad);
return chain;
/* ERRORS */
no_queue:
{
post_missing_element_message (playsink, "queue");
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"), (NULL));
free_chain ((GstPlayChain *) chain);
return NULL;
}
no_audioconvert:
{
post_missing_element_message (playsink, "audioconvert");
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"audioconvert"), ("make sure audioconvert isn't blacklisted"));
free_chain ((GstPlayChain *) chain);
return NULL;
}
no_audioresample:
{
post_missing_element_message (playsink, "audioresample");
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"audioresample"), (NULL));
free_chain ((GstPlayChain *) chain);
return NULL;
}
no_goom:
{
post_missing_element_message (playsink, "goom");
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"goom"), (NULL));
free_chain ((GstPlayChain *) chain);
return NULL;
}
link_failed:
{
GST_ELEMENT_ERROR (playsink, CORE, PAD,
(NULL), ("Failed to configure the visualisation element."));
/* element made it to READY */
gst_element_set_state (chain->vis, GST_STATE_NULL);
free_chain ((GstPlayChain *) chain);
return NULL;
}
}
/* this function is called when all the request pads are requested and when we
* have to construct the final pipeline. Based on the flags we construct the
* final output pipelines.
*/
static gboolean
gst_play_sink_do_reconfigure (GstPlaySink * playsink)
{
GstPlayFlags flags;
gboolean need_audio, need_video, need_deinterlace, need_vis, need_text;
GST_DEBUG_OBJECT (playsink, "reconfiguring");
/* assume we need nothing */
need_audio = need_video = need_deinterlace = need_vis = need_text = FALSE;
GST_PLAY_SINK_LOCK (playsink);
GST_OBJECT_LOCK (playsink);
/* get flags, there are protected with the object lock */
flags = playsink->flags;
GST_OBJECT_UNLOCK (playsink);
/* figure out which components we need */
if (flags & GST_PLAY_FLAG_TEXT && playsink->text_pad) {
/* we have subtitles and we are requested to show it */
need_text = TRUE;
}
if (((flags & GST_PLAY_FLAG_VIDEO)
|| (flags & GST_PLAY_FLAG_NATIVE_VIDEO)) && playsink->video_pad) {
/* we have video and we are requested to show it */
need_video = TRUE;
/* we only deinterlace if native video is not requested and
* we have raw video */
if ((flags & GST_PLAY_FLAG_DEINTERLACE)
&& !(flags & GST_PLAY_FLAG_NATIVE_VIDEO) && playsink->video_pad_raw)
need_deinterlace = TRUE;
}
if (playsink->audio_pad) {
if ((flags & GST_PLAY_FLAG_AUDIO) || (flags & GST_PLAY_FLAG_NATIVE_AUDIO)) {
need_audio = TRUE;
}
if (playsink->audio_pad_raw) {
/* only can do vis with raw uncompressed audio */
if (flags & GST_PLAY_FLAG_VIS && !need_video) {
/* also add video when we add visualisation */
need_video = TRUE;
need_vis = TRUE;
}
}
}
/* we have a text_pad and we need text rendering, in this case we need a
* video_pad to combine the video with the text or visualizations */
if (need_text && !need_video && !playsink->text_sink) {
if (playsink->video_pad) {
need_video = TRUE;
} else if (need_audio) {
GST_ELEMENT_WARNING (playsink, STREAM, FORMAT,
(_("Can't play a text file without video or visualizations.")),
("Have text pad but no video pad or visualizations"));
need_text = FALSE;
} else {
GST_ELEMENT_ERROR (playsink, STREAM, FORMAT,
(_("Can't play a text file without video or visualizations.")),
("Have text pad but no video pad or visualizations"));
GST_PLAY_SINK_UNLOCK (playsink);
return FALSE;
}
}
GST_DEBUG_OBJECT (playsink, "audio:%d, video:%d, vis:%d, text:%d", need_audio,
need_video, need_vis, need_text);
/* set up video pipeline */
if (need_video) {
gboolean raw, async;
/* we need a raw sink when we do vis or when we have a raw pad */
raw = need_vis ? TRUE : playsink->video_pad_raw;
/* we try to set the sink async=FALSE when we need vis, this way we can
* avoid a queue in the audio chain. */
async = !need_vis;
GST_DEBUG_OBJECT (playsink, "adding video, raw %d",
playsink->video_pad_raw);
if (playsink->videochain) {
/* try to reactivate the chain */
if ((playsink->video_sink
&& playsink->video_sink != playsink->videochain->sink)
|| (playsink->video_filter
&& playsink->video_filter != playsink->videochain->filter)
|| !setup_video_chain (playsink, raw, async)) {
if (playsink->video_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->video_sinkpad_stream_synchronizer);
gst_object_unref (playsink->video_sinkpad_stream_synchronizer);
playsink->video_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->video_srcpad_stream_synchronizer);
playsink->video_srcpad_stream_synchronizer = NULL;
}
add_chain (GST_PLAY_CHAIN (playsink->videochain), FALSE);
/* Remove the sink from the bin to keep its state
* and unparent it to allow reuse */
if (playsink->videochain->sink) {
if (playsink->videochain->sink != playsink->video_sink)
gst_element_set_state (playsink->videochain->sink, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playsink->videochain->chain.bin),
playsink->videochain->sink);
}
/* Remove the filter from the bin to keep its state
* and unparent it to allow reuse */
if (playsink->videochain->filter) {
if (playsink->videochain->filter != playsink->video_filter)
gst_element_set_state (playsink->videochain->filter,
GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playsink->videochain->chain.bin),
playsink->videochain->filter);
}
activate_chain (GST_PLAY_CHAIN (playsink->videochain), FALSE);
free_chain ((GstPlayChain *) playsink->videochain);
playsink->videochain = NULL;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
gst_object_unref (playsink->overlay_element);
playsink->overlay_element = NULL;
if (playsink->colorbalance_element) {
g_signal_handler_disconnect (playsink->colorbalance_element,
playsink->colorbalance_value_changed_id);
playsink->colorbalance_value_changed_id = 0;
gst_object_unref (playsink->colorbalance_element);
}
playsink->colorbalance_element = NULL;
GST_OBJECT_UNLOCK (playsink);
}
}
if (!playsink->videochain)
playsink->videochain = gen_video_chain (playsink, raw, async);
if (!playsink->videochain)
goto no_chain;
if (!playsink->video_sinkpad_stream_synchronizer) {
GValue item = { 0, };
GstIterator *it;
playsink->video_sinkpad_stream_synchronizer =
gst_element_get_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer), "sink_%u");
it = gst_pad_iterate_internal_links
(playsink->video_sinkpad_stream_synchronizer);
g_assert (it);
gst_iterator_next (it, &item);
playsink->video_srcpad_stream_synchronizer = g_value_dup_object (&item);
g_value_unset (&item);
g_assert (playsink->video_srcpad_stream_synchronizer);
gst_iterator_free (it);
}
if (playsink->video_pad)
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->video_pad),
playsink->video_sinkpad_stream_synchronizer);
if (need_deinterlace) {
if (!playsink->videodeinterlacechain)
playsink->videodeinterlacechain =
gen_video_deinterlace_chain (playsink);
if (!playsink->videodeinterlacechain)
goto no_chain;
GST_DEBUG_OBJECT (playsink, "adding video deinterlace chain");
GST_DEBUG_OBJECT (playsink, "setting up deinterlacing chain");
add_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain), TRUE);
activate_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain), TRUE);
gst_pad_unlink (playsink->video_srcpad_stream_synchronizer,
playsink->videochain->sinkpad);
gst_pad_link_full (playsink->video_srcpad_stream_synchronizer,
playsink->videodeinterlacechain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
} else {
if (playsink->videodeinterlacechain) {
add_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain), FALSE);
activate_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain),
FALSE);
}
}
GST_DEBUG_OBJECT (playsink, "adding video chain");
add_chain (GST_PLAY_CHAIN (playsink->videochain), TRUE);
activate_chain (GST_PLAY_CHAIN (playsink->videochain), TRUE);
/* if we are not part of vis or subtitles, set the ghostpad target */
if (!need_vis && !need_text && (!playsink->textchain
|| !playsink->text_pad)) {
GST_DEBUG_OBJECT (playsink, "ghosting video sinkpad");
gst_pad_unlink (playsink->video_srcpad_stream_synchronizer,
playsink->videochain->sinkpad);
if (playsink->videodeinterlacechain
&& playsink->videodeinterlacechain->srcpad)
gst_pad_unlink (playsink->videodeinterlacechain->srcpad,
playsink->videochain->sinkpad);
if (need_deinterlace)
gst_pad_link_full (playsink->videodeinterlacechain->srcpad,
playsink->videochain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
else
gst_pad_link_full (playsink->video_srcpad_stream_synchronizer,
playsink->videochain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
}
} else {
GST_DEBUG_OBJECT (playsink, "no video needed");
if (playsink->videochain) {
GST_DEBUG_OBJECT (playsink, "removing video chain");
if (playsink->vischain) {
GstPad *srcpad;
GST_DEBUG_OBJECT (playsink, "unlinking vis chain");
/* also had visualisation, release the tee srcpad before we then
* unlink the video from it */
if (playsink->audio_tee_vissrc) {
gst_element_release_request_pad (playsink->audio_tee,
playsink->audio_tee_vissrc);
gst_object_unref (playsink->audio_tee_vissrc);
playsink->audio_tee_vissrc = NULL;
}
srcpad =
gst_element_get_static_pad (playsink->vischain->chain.bin, "src");
gst_pad_unlink (srcpad, playsink->videochain->sinkpad);
}
if (playsink->video_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->video_sinkpad_stream_synchronizer);
gst_object_unref (playsink->video_sinkpad_stream_synchronizer);
playsink->video_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->video_srcpad_stream_synchronizer);
playsink->video_srcpad_stream_synchronizer = NULL;
}
add_chain (GST_PLAY_CHAIN (playsink->videochain), FALSE);
activate_chain (GST_PLAY_CHAIN (playsink->videochain), FALSE);
if (playsink->videochain->ts_offset)
gst_object_unref (playsink->videochain->ts_offset);
playsink->videochain->ts_offset = NULL;
}
if (playsink->videodeinterlacechain) {
add_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain), FALSE);
activate_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain), FALSE);
}
if (playsink->video_pad)
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->video_pad), NULL);
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
gst_object_unref (playsink->overlay_element);
playsink->overlay_element = NULL;
if (playsink->colorbalance_element) {
g_signal_handler_disconnect (playsink->colorbalance_element,
playsink->colorbalance_value_changed_id);
playsink->colorbalance_value_changed_id = 0;
gst_object_unref (playsink->colorbalance_element);
}
playsink->colorbalance_element = NULL;
GST_OBJECT_UNLOCK (playsink);
if (playsink->video_sink)
gst_element_set_state (playsink->video_sink, GST_STATE_NULL);
if (playsink->video_filter)
gst_element_set_state (playsink->video_filter, GST_STATE_NULL);
}
if (need_audio) {
gboolean raw;
GST_DEBUG_OBJECT (playsink, "adding audio");
/* get a raw sink if we are asked for a raw pad */
raw = playsink->audio_pad_raw;
if (playsink->audiochain) {
/* try to reactivate the chain */
if ((playsink->audio_sink
&& playsink->audio_sink != playsink->audiochain->sink)
|| (playsink->audio_filter
&& playsink->audio_filter != playsink->audiochain->filter)
|| !setup_audio_chain (playsink, raw)) {
GST_DEBUG_OBJECT (playsink, "removing current audio chain");
if (playsink->audio_tee_asrc) {
gst_element_release_request_pad (playsink->audio_tee,
playsink->audio_tee_asrc);
gst_object_unref (playsink->audio_tee_asrc);
playsink->audio_tee_asrc = NULL;
}
if (playsink->audio_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->audio_sinkpad_stream_synchronizer);
gst_object_unref (playsink->audio_sinkpad_stream_synchronizer);
playsink->audio_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->audio_srcpad_stream_synchronizer);
playsink->audio_srcpad_stream_synchronizer = NULL;
gst_play_sink_remove_audio_ssync_queue (playsink);
}
add_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
/* Remove the sink from the bin to keep its state
* and unparent it to allow reuse */
if (playsink->audiochain->sink) {
if (playsink->audiochain->sink != playsink->audio_sink)
gst_element_set_state (playsink->audiochain->sink, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playsink->audiochain->chain.bin),
playsink->audiochain->sink);
}
/* Remove the filter from the bin to keep its state
* and unparent it to allow reuse */
if (playsink->audiochain->filter) {
if (playsink->audiochain->filter != playsink->audio_filter)
gst_element_set_state (playsink->audiochain->filter,
GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playsink->audiochain->chain.bin),
playsink->audiochain->filter);
}
activate_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
disconnect_audio_chain (playsink->audiochain, playsink);
if (playsink->audiochain->volume)
gst_object_unref (playsink->audiochain->volume);
playsink->audiochain->volume = NULL;
if (playsink->audiochain->ts_offset)
gst_object_unref (playsink->audiochain->ts_offset);
playsink->audiochain->ts_offset = NULL;
free_chain ((GstPlayChain *) playsink->audiochain);
playsink->audiochain = NULL;
playsink->volume_changed = playsink->mute_changed = FALSE;
}
}
if (!playsink->audiochain) {
GST_DEBUG_OBJECT (playsink, "creating new audio chain");
playsink->audiochain = gen_audio_chain (playsink, raw);
}
if (!playsink->audiochain)
goto no_chain;
if (!playsink->audio_sinkpad_stream_synchronizer) {
GValue item = { 0, };
GstIterator *it;
playsink->audio_sinkpad_stream_synchronizer =
gst_element_get_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer), "sink_%u");
it = gst_pad_iterate_internal_links
(playsink->audio_sinkpad_stream_synchronizer);
g_assert (it);
gst_iterator_next (it, &item);
playsink->audio_srcpad_stream_synchronizer = g_value_dup_object (&item);
g_value_unset (&item);
g_assert (playsink->audio_srcpad_stream_synchronizer);
gst_iterator_free (it);
}
if (need_vis) {
GstPad *audio_queue_srcpad;
if (gst_pad_is_linked (playsink->audio_sinkpad_stream_synchronizer)) {
GstPad *peer_pad =
gst_pad_get_peer (playsink->audio_sinkpad_stream_synchronizer);
gst_pad_unlink (peer_pad, playsink->audio_sinkpad_stream_synchronizer);
gst_object_unref (peer_pad);
}
if (!playsink->audio_ssync_queue) {
GST_DEBUG_OBJECT (playsink, "adding audio stream synchronizer queue");
playsink->audio_ssync_queue =
gst_element_factory_make ("queue", "audiossyncqueue");
if (playsink->audio_ssync_queue == NULL) {
post_missing_element_message (playsink, "queue");
GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"queue"),
("audio playback and visualizations might not work"));
}
g_object_set (playsink->audio_ssync_queue, "max-size-buffers",
(guint) 1, NULL);
gst_bin_add (GST_BIN_CAST (playsink), playsink->audio_ssync_queue);
playsink->audio_ssync_queue_sinkpad =
gst_element_get_static_pad (playsink->audio_ssync_queue, "sink");
}
audio_queue_srcpad =
gst_element_get_static_pad (playsink->audio_ssync_queue, "src");
gst_pad_link_full (audio_queue_srcpad,
playsink->audio_sinkpad_stream_synchronizer,
GST_PAD_LINK_CHECK_NOTHING);
gst_object_unref (audio_queue_srcpad);
gst_element_sync_state_with_parent (playsink->audio_ssync_queue);
}
if (playsink->audiochain) {
GstPad *sinkpad;
GST_DEBUG_OBJECT (playsink, "adding audio chain");
if (playsink->audio_tee_asrc == NULL) {
playsink->audio_tee_asrc =
gst_element_get_request_pad (playsink->audio_tee, "src_%u");
}
sinkpad = playsink->audio_ssync_queue_sinkpad;
if (!sinkpad)
sinkpad = playsink->audio_sinkpad_stream_synchronizer;
add_chain (GST_PLAY_CHAIN (playsink->audiochain), TRUE);
activate_chain (GST_PLAY_CHAIN (playsink->audiochain), TRUE);
gst_pad_link_full (playsink->audio_tee_asrc, sinkpad,
GST_PAD_LINK_CHECK_NOTHING);
gst_pad_link_full (playsink->audio_srcpad_stream_synchronizer,
playsink->audiochain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
}
} else {
GST_DEBUG_OBJECT (playsink, "no audio needed");
/* we have no audio or we are requested to not play audio */
if (playsink->audiochain) {
GST_DEBUG_OBJECT (playsink, "removing audio chain");
/* release the audio pad */
if (playsink->audio_tee_asrc) {
gst_element_release_request_pad (playsink->audio_tee,
playsink->audio_tee_asrc);
gst_object_unref (playsink->audio_tee_asrc);
playsink->audio_tee_asrc = NULL;
}
if (playsink->audio_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->audio_sinkpad_stream_synchronizer);
gst_object_unref (playsink->audio_sinkpad_stream_synchronizer);
playsink->audio_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->audio_srcpad_stream_synchronizer);
playsink->audio_srcpad_stream_synchronizer = NULL;
gst_play_sink_remove_audio_ssync_queue (playsink);
}
if (playsink->audiochain->sink_volume) {
disconnect_audio_chain (playsink->audiochain, playsink);
if (playsink->audiochain->volume)
gst_object_unref (playsink->audiochain->volume);
playsink->audiochain->volume = NULL;
if (playsink->audiochain->ts_offset)
gst_object_unref (playsink->audiochain->ts_offset);
playsink->audiochain->ts_offset = NULL;
}
add_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
activate_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
}
if (playsink->audio_sink)
gst_element_set_state (playsink->audio_sink, GST_STATE_NULL);
if (playsink->audio_filter)
gst_element_set_state (playsink->audio_filter, GST_STATE_NULL);
}
if (need_vis) {
GstPad *srcpad;
if (!playsink->vischain)
playsink->vischain = gen_vis_chain (playsink);
GST_DEBUG_OBJECT (playsink, "adding visualisation");
if (playsink->vischain) {
GST_DEBUG_OBJECT (playsink, "setting up vis chain");
/* Lazily add and activate chain */
if (!playsink->vischain->chain.added) {
srcpad =
gst_element_get_static_pad (playsink->vischain->chain.bin, "src");
add_chain (GST_PLAY_CHAIN (playsink->vischain), TRUE);
activate_chain (GST_PLAY_CHAIN (playsink->vischain), TRUE);
if (playsink->audio_tee_vissrc == NULL) {
playsink->audio_tee_vissrc =
gst_element_get_request_pad (playsink->audio_tee, "src_%u");
}
gst_pad_link_full (playsink->audio_tee_vissrc,
playsink->vischain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
gst_pad_link_full (srcpad, playsink->video_sinkpad_stream_synchronizer,
GST_PAD_LINK_CHECK_NOTHING);
gst_pad_link_full (playsink->video_srcpad_stream_synchronizer,
playsink->videochain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
gst_object_unref (srcpad);
}
/* Is a reconfiguration required? */
if (playsink->vischain->vis != playsink->visualisation) {
/* unlink the old plugin and unghost the pad */
gst_pad_unlink (playsink->vischain->vispeerpad,
playsink->vischain->vissinkpad);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->vischain->
srcpad), NULL);
/* set the old plugin to NULL and remove */
gst_element_set_state (playsink->vischain->vis, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (playsink->vischain->chain.bin),
playsink->vischain->vis);
/* add new plugin and set state to playing */
playsink->vischain->vis = playsink->visualisation;
gst_bin_add (GST_BIN_CAST (playsink->vischain->chain.bin),
playsink->vischain->vis);
gst_element_set_state (playsink->vischain->vis, GST_STATE_PLAYING);
/* get pads */
playsink->vischain->vissinkpad =
gst_element_get_static_pad (playsink->vischain->vis, "sink");
playsink->vischain->vissrcpad =
gst_element_get_static_pad (playsink->vischain->vis, "src");
/* link pads */
gst_pad_link_full (playsink->vischain->vispeerpad,
playsink->vischain->vissinkpad, GST_PAD_LINK_CHECK_NOTHING);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->vischain->
srcpad), playsink->vischain->vissrcpad);
}
}
} else {
GST_DEBUG_OBJECT (playsink, "no vis needed");
if (playsink->vischain) {
if (playsink->audio_tee_vissrc) {
gst_element_release_request_pad (playsink->audio_tee,
playsink->audio_tee_vissrc);
gst_object_unref (playsink->audio_tee_vissrc);
playsink->audio_tee_vissrc = NULL;
}
GST_DEBUG_OBJECT (playsink, "removing vis chain");
add_chain (GST_PLAY_CHAIN (playsink->vischain), FALSE);
activate_chain (GST_PLAY_CHAIN (playsink->vischain), FALSE);
}
}
if (need_text) {
GST_DEBUG_OBJECT (playsink, "adding text");
if (!playsink->textchain) {
GST_DEBUG_OBJECT (playsink, "creating text chain");
playsink->textchain = gen_text_chain (playsink);
}
if (playsink->textchain) {
GstIterator *it;
GST_DEBUG_OBJECT (playsink, "adding text chain");
if (playsink->textchain->overlay)
g_object_set (G_OBJECT (playsink->textchain->overlay), "silent", FALSE,
NULL);
add_chain (GST_PLAY_CHAIN (playsink->textchain), TRUE);
if (!playsink->text_sinkpad_stream_synchronizer) {
GValue item = { 0, };
playsink->text_sinkpad_stream_synchronizer =
gst_element_get_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer), "sink_%u");
it = gst_pad_iterate_internal_links
(playsink->text_sinkpad_stream_synchronizer);
g_assert (it);
gst_iterator_next (it, &item);
playsink->text_srcpad_stream_synchronizer = g_value_dup_object (&item);
g_value_unset (&item);
g_assert (playsink->text_srcpad_stream_synchronizer);
gst_iterator_free (it);
}
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->text_pad),
playsink->text_sinkpad_stream_synchronizer);
gst_pad_link_full (playsink->text_srcpad_stream_synchronizer,
playsink->textchain->textsinkpad, GST_PAD_LINK_CHECK_NOTHING);
if (need_vis || need_video) {
if (need_vis) {
GstPad *srcpad;
srcpad =
gst_element_get_static_pad (playsink->vischain->chain.bin, "src");
gst_pad_unlink (srcpad, playsink->videochain->sinkpad);
gst_pad_link_full (srcpad, playsink->textchain->videosinkpad,
GST_PAD_LINK_CHECK_NOTHING);
gst_object_unref (srcpad);
} else {
if (need_deinterlace) {
gst_pad_unlink (playsink->videodeinterlacechain->srcpad,
playsink->videochain->sinkpad);
gst_pad_link_full (playsink->videodeinterlacechain->srcpad,
playsink->textchain->videosinkpad, GST_PAD_LINK_CHECK_NOTHING);
} else {
gst_pad_unlink (playsink->video_srcpad_stream_synchronizer,
playsink->videochain->sinkpad);
gst_pad_link_full (playsink->video_srcpad_stream_synchronizer,
playsink->textchain->videosinkpad, GST_PAD_LINK_CHECK_NOTHING);
}
}
gst_pad_link_full (playsink->textchain->srcpad,
playsink->videochain->sinkpad, GST_PAD_LINK_CHECK_NOTHING);
}
activate_chain (GST_PLAY_CHAIN (playsink->textchain), TRUE);
}
} else {
GST_DEBUG_OBJECT (playsink, "no text needed");
/* we have no subtitles/text or we are requested to not show them */
if (playsink->textchain) {
if (playsink->text_pad == NULL) {
/* no text pad, remove the chain entirely */
GST_DEBUG_OBJECT (playsink, "removing text chain");
add_chain (GST_PLAY_CHAIN (playsink->textchain), FALSE);
activate_chain (GST_PLAY_CHAIN (playsink->textchain), FALSE);
if (playsink->text_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->text_sinkpad_stream_synchronizer);
gst_object_unref (playsink->text_sinkpad_stream_synchronizer);
playsink->text_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->text_srcpad_stream_synchronizer);
playsink->text_srcpad_stream_synchronizer = NULL;
}
if (!need_video && playsink->video_pad) {
if (playsink->video_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->video_sinkpad_stream_synchronizer);
gst_object_unref (playsink->video_sinkpad_stream_synchronizer);
playsink->video_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->video_srcpad_stream_synchronizer);
playsink->video_srcpad_stream_synchronizer = NULL;
}
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->video_pad),
NULL);
}
if (playsink->text_pad && !playsink->textchain)
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (playsink->text_pad),
NULL);
if (playsink->text_sink)
gst_element_set_state (playsink->text_sink, GST_STATE_NULL);
} else {
/* we have a chain and a textpad, turn the subtitles off */
GST_DEBUG_OBJECT (playsink, "turning off the text");
if (playsink->textchain->overlay)
g_object_set (G_OBJECT (playsink->textchain->overlay), "silent", TRUE,
NULL);
}
}
}
update_av_offset (playsink);
update_text_offset (playsink);
do_async_done (playsink);
GST_PLAY_SINK_UNLOCK (playsink);
return TRUE;
/* ERRORS */
no_chain:
{
/* gen_ chain already posted error */
GST_DEBUG_OBJECT (playsink, "failed to setup chain");
GST_PLAY_SINK_UNLOCK (playsink);
return FALSE;
}
}
/**
* gst_play_sink_set_flags:
* @playsink: a #GstPlaySink
* @flags: #GstPlayFlags
*
* Configure @flags on @playsink. The flags control the behaviour of @playsink
* when constructing the sink pipelins.
*
* Returns: TRUE if the flags could be configured.
*/
gboolean
gst_play_sink_set_flags (GstPlaySink * playsink, GstPlayFlags flags)
{
g_return_val_if_fail (GST_IS_PLAY_SINK (playsink), FALSE);
GST_OBJECT_LOCK (playsink);
playsink->flags = flags;
GST_OBJECT_UNLOCK (playsink);
return TRUE;
}
/**
* gst_play_sink_get_flags:
* @playsink: a #GstPlaySink
*
* Get the flags of @playsink. That flags control the behaviour of the sink when
* it constructs the sink pipelines.
*
* Returns: the currently configured #GstPlayFlags.
*/
GstPlayFlags
gst_play_sink_get_flags (GstPlaySink * playsink)
{
GstPlayFlags res;
g_return_val_if_fail (GST_IS_PLAY_SINK (playsink), 0);
GST_OBJECT_LOCK (playsink);
res = playsink->flags;
GST_OBJECT_UNLOCK (playsink);
return res;
}
void
gst_play_sink_set_font_desc (GstPlaySink * playsink, const gchar * desc)
{
GstPlayTextChain *chain;
GST_PLAY_SINK_LOCK (playsink);
chain = (GstPlayTextChain *) playsink->textchain;
g_free (playsink->font_desc);
playsink->font_desc = g_strdup (desc);
if (chain && chain->overlay) {
g_object_set (chain->overlay, "font-desc", desc, NULL);
}
GST_PLAY_SINK_UNLOCK (playsink);
}
gchar *
gst_play_sink_get_font_desc (GstPlaySink * playsink)
{
gchar *result = NULL;
GstPlayTextChain *chain;
GST_PLAY_SINK_LOCK (playsink);
chain = (GstPlayTextChain *) playsink->textchain;
if (chain && chain->overlay) {
g_object_get (chain->overlay, "font-desc", &result, NULL);
playsink->font_desc = g_strdup (result);
} else {
result = g_strdup (playsink->font_desc);
}
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
void
gst_play_sink_set_subtitle_encoding (GstPlaySink * playsink,
const gchar * encoding)
{
GstPlayTextChain *chain;
GST_PLAY_SINK_LOCK (playsink);
chain = (GstPlayTextChain *) playsink->textchain;
g_free (playsink->subtitle_encoding);
playsink->subtitle_encoding = g_strdup (encoding);
if (chain && chain->overlay) {
g_object_set (chain->overlay, "subtitle-encoding", encoding, NULL);
}
GST_PLAY_SINK_UNLOCK (playsink);
}
gchar *
gst_play_sink_get_subtitle_encoding (GstPlaySink * playsink)
{
gchar *result = NULL;
GstPlayTextChain *chain;
GST_PLAY_SINK_LOCK (playsink);
chain = (GstPlayTextChain *) playsink->textchain;
if (chain && chain->overlay) {
g_object_get (chain->overlay, "subtitle-encoding", &result, NULL);
playsink->subtitle_encoding = g_strdup (result);
} else {
result = g_strdup (playsink->subtitle_encoding);
}
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
static void
update_av_offset (GstPlaySink * playsink)
{
gint64 av_offset;
GstPlayAudioChain *achain;
GstPlayVideoChain *vchain;
av_offset = playsink->av_offset;
achain = (GstPlayAudioChain *) playsink->audiochain;
vchain = (GstPlayVideoChain *) playsink->videochain;
if (achain && vchain && achain->ts_offset && vchain->ts_offset) {
g_object_set (achain->ts_offset,
"ts-offset", MAX (G_GINT64_CONSTANT (0), -av_offset), NULL);
g_object_set (vchain->ts_offset,
"ts-offset", MAX (G_GINT64_CONSTANT (0), av_offset), NULL);
} else {
GST_LOG_OBJECT (playsink, "no ts_offset elements");
}
}
void
gst_play_sink_set_av_offset (GstPlaySink * playsink, gint64 av_offset)
{
GST_PLAY_SINK_LOCK (playsink);
playsink->av_offset = av_offset;
update_av_offset (playsink);
GST_PLAY_SINK_UNLOCK (playsink);
}
gint64
gst_play_sink_get_av_offset (GstPlaySink * playsink)
{
gint64 result;
GST_PLAY_SINK_LOCK (playsink);
result = playsink->av_offset;
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
static void
update_text_offset (GstPlaySink * playsink)
{
gint64 text_offset;
GstPlayTextChain *tchain;
GstElement *elem;
text_offset = playsink->text_offset;
tchain = (GstPlayTextChain *) playsink->textchain;
if (tchain) {
if (tchain->sink) {
elem =
gst_play_sink_find_property_sinks (playsink, tchain->sink,
"ts-offset", G_TYPE_INT64);
if (elem)
g_object_set (elem, "ts-offset", text_offset, NULL);
} else if (tchain->overlay) {
g_object_set (tchain->overlay, "subtitle-ts-offset", text_offset, NULL);
}
} else {
GST_LOG_OBJECT (playsink, "no text chain");
}
}
void
gst_play_sink_set_text_offset (GstPlaySink * playsink, gint64 text_offset)
{
GST_PLAY_SINK_LOCK (playsink);
playsink->text_offset = text_offset;
update_text_offset (playsink);
GST_PLAY_SINK_UNLOCK (playsink);
}
gint64
gst_play_sink_get_text_offset (GstPlaySink * playsink)
{
gint64 result;
GST_PLAY_SINK_LOCK (playsink);
result = playsink->text_offset;
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
/**
* gst_play_sink_get_last_sample:
* @playsink: a #GstPlaySink
*
* Get the last displayed sample from @playsink. This sample is in the native
* format of the sink element, the caps in the result sample contain the format
* of the frame data.
*
* Returns: a #GstSample with the frame data or %NULL when no video frame is
* available.
*/
GstSample *
gst_play_sink_get_last_sample (GstPlaySink * playsink)
{
GstSample *result = NULL;
GstPlayVideoChain *chain;
GST_PLAY_SINK_LOCK (playsink);
GST_DEBUG_OBJECT (playsink, "taking last sample");
/* get the video chain if we can */
if ((chain = (GstPlayVideoChain *) playsink->videochain)) {
GST_DEBUG_OBJECT (playsink, "found video chain");
/* see if the chain is active */
if (chain->chain.activated && chain->sink) {
GstElement *elem;
GST_DEBUG_OBJECT (playsink, "video chain active and has a sink");
/* find and get the last-buffer property now */
if ((elem =
gst_play_sink_find_property (playsink, chain->sink,
"last-sample", GST_TYPE_SAMPLE))) {
GST_DEBUG_OBJECT (playsink, "getting last-sample property");
g_object_get (elem, "last-sample", &result, NULL);
gst_object_unref (elem);
}
}
}
GST_PLAY_SINK_UNLOCK (playsink);
return result;
}
/**
* gst_play_sink_convert_sample:
* @playsink: a #GstPlaySink
* @caps: a #GstCaps
*
* Get the last displayed frame from @playsink. If caps is %NULL, the video will
* be in the native format of the sink element and the caps on the buffer
* describe the format of the frame. If @caps is not %NULL, the video
* frame will be converted to the format of the caps.
*
* Returns: a #GstSample of the current video sample converted to #caps.
* The caps in the sample will describe the final layout of the buffer data.
* %NULL is returned when no current sample can be retrieved or when the
* conversion failed.
*/
GstSample *
gst_play_sink_convert_sample (GstPlaySink * playsink, GstCaps * caps)
{
GstSample *result;
GError *err = NULL;
result = gst_play_sink_get_last_sample (playsink);
if (result != NULL && caps != NULL) {
GstSample *temp;
temp = gst_video_convert_sample (result, caps, 25 * GST_SECOND, &err);
if (temp == NULL && err)
goto error;
gst_sample_unref (result);
result = temp;
}
return result;
/* ERRORS */
error:
{
/* I'm really uncertain whether we should make playsink post an error
* on the bus or not. It's not like it's a critical issue regarding
* playsink behaviour. */
GST_ERROR ("Error converting frame: %s", err->message);
gst_sample_unref (result);
g_error_free (err);
return NULL;
}
}
static gboolean
is_raw_structure (GstStructure * s)
{
const gchar *name;
name = gst_structure_get_name (s);
if (g_str_equal (name, "video/x-raw") || g_str_equal (name, "audio/x-raw"))
return TRUE;
return FALSE;
}
static gboolean
is_raw_pad (GstPad * pad)
{
GstPad *peer = gst_pad_get_peer (pad);
GstCaps *caps;
gboolean raw = TRUE;
if (!peer)
return raw;
caps = gst_pad_get_current_caps (peer);
if (!caps) {
guint i, n;
caps = gst_pad_query_caps (peer, NULL);
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
gboolean r = is_raw_structure (gst_caps_get_structure (caps, i));
if (i == 0) {
raw = r;
} else if (raw != r) {
GST_ERROR_OBJECT (pad,
"Caps contains raw and non-raw structures: %" GST_PTR_FORMAT, caps);
raw = FALSE;
break;
}
}
} else {
raw = is_raw_structure (gst_caps_get_structure (caps, 0));
}
gst_caps_unref (caps);
gst_object_unref (peer);
return raw;
}
static GstPadProbeReturn
sinkpad_blocked_cb (GstPad * blockedpad, GstPadProbeInfo * info,
gpointer user_data);
static void
video_set_blocked (GstPlaySink * playsink, gboolean blocked)
{
if (playsink->video_pad) {
GstPad *opad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD
(playsink->video_pad)));
if (blocked && playsink->video_block_id == 0) {
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->
blockpad, playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
playsink->video_block_id =
gst_pad_add_probe (opad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
sinkpad_blocked_cb, playsink, NULL);
} else if (!blocked && playsink->video_block_id) {
gst_pad_remove_probe (opad, playsink->video_block_id);
PENDING_FLAG_UNSET (playsink, GST_PLAY_SINK_TYPE_VIDEO);
playsink->video_block_id = 0;
playsink->video_pad_blocked = FALSE;
}
gst_object_unref (opad);
}
}
static void
audio_set_blocked (GstPlaySink * playsink, gboolean blocked)
{
if (playsink->audio_pad) {
GstPad *opad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD
(playsink->audio_pad)));
if (blocked && playsink->audio_block_id == 0) {
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->
blockpad, playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
playsink->audio_block_id =
gst_pad_add_probe (opad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
sinkpad_blocked_cb, playsink, NULL);
} else if (!blocked && playsink->audio_block_id) {
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->
blockpad, playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
gst_pad_remove_probe (opad, playsink->audio_block_id);
PENDING_FLAG_UNSET (playsink, GST_PLAY_SINK_TYPE_AUDIO);
playsink->audio_block_id = 0;
playsink->audio_pad_blocked = FALSE;
}
gst_object_unref (opad);
}
}
static void
text_set_blocked (GstPlaySink * playsink, gboolean blocked)
{
if (playsink->text_pad) {
GstPad *opad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD
(playsink->text_pad)));
if (blocked && playsink->text_block_id == 0) {
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->
blockpad, playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
playsink->text_block_id =
gst_pad_add_probe (opad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
sinkpad_blocked_cb, playsink, NULL);
} else if (!blocked && playsink->text_block_id) {
gst_pad_remove_probe (opad, playsink->text_block_id);
PENDING_FLAG_UNSET (playsink, GST_PLAY_SINK_TYPE_TEXT);
playsink->text_block_id = 0;
playsink->text_pad_blocked = FALSE;
}
gst_object_unref (opad);
}
}
gboolean
gst_play_sink_reconfigure (GstPlaySink * playsink)
{
GST_LOG_OBJECT (playsink, "Triggering reconfiguration");
GST_PLAY_SINK_LOCK (playsink);
video_set_blocked (playsink, TRUE);
audio_set_blocked (playsink, TRUE);
text_set_blocked (playsink, TRUE);
GST_PLAY_SINK_UNLOCK (playsink);
return TRUE;
}
static GstPadProbeReturn
sinkpad_blocked_cb (GstPad * blockedpad, GstPadProbeInfo * info,
gpointer user_data)
{
GstPlaySink *playsink = (GstPlaySink *) user_data;
GstPad *pad;
if (GST_IS_EVENT (info->data) && !GST_EVENT_IS_SERIALIZED (info->data)) {
GST_DEBUG_OBJECT (playsink, "Letting non-serialized event %s pass",
GST_EVENT_TYPE_NAME (info->data));
return GST_PAD_PROBE_PASS;
}
GST_PLAY_SINK_LOCK (playsink);
pad = GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (blockedpad)));
if (pad == playsink->video_pad) {
playsink->video_pad_blocked = TRUE;
GST_DEBUG_OBJECT (pad, "Video pad blocked");
} else if (pad == playsink->audio_pad) {
playsink->audio_pad_blocked = TRUE;
GST_DEBUG_OBJECT (pad, "Audio pad blocked");
} else if (pad == playsink->text_pad) {
playsink->text_pad_blocked = TRUE;
GST_DEBUG_OBJECT (pad, "Text pad blocked");
}
/* We reconfigure when for ALL streams:
* * there isn't a pad
* * OR the pad is blocked
* * OR there are no pending blocks on that pad
*/
if ((!playsink->video_pad || playsink->video_pad_blocked
|| !PENDING_VIDEO_BLOCK (playsink)) && (!playsink->audio_pad
|| playsink->audio_pad_blocked || !PENDING_AUDIO_BLOCK (playsink))
&& (!playsink->text_pad || playsink->text_pad_blocked
|| !PENDING_TEXT_BLOCK (playsink))) {
GST_DEBUG_OBJECT (playsink, "All pads blocked -- reconfiguring");
if (playsink->video_pad) {
playsink->video_pad_raw = is_raw_pad (playsink->video_pad);
GST_DEBUG_OBJECT (playsink, "Video pad is raw: %d",
playsink->video_pad_raw);
}
if (playsink->audio_pad) {
playsink->audio_pad_raw = is_raw_pad (playsink->audio_pad);
GST_DEBUG_OBJECT (playsink, "Audio pad is raw: %d",
playsink->audio_pad_raw);
}
gst_play_sink_do_reconfigure (playsink);
video_set_blocked (playsink, FALSE);
audio_set_blocked (playsink, FALSE);
text_set_blocked (playsink, FALSE);
}
gst_object_unref (pad);
GST_PLAY_SINK_UNLOCK (playsink);
return GST_PAD_PROBE_OK;
}
static void
caps_notify_cb (GstPad * pad, GParamSpec * unused, GstPlaySink * playsink)
{
gboolean reconfigure = FALSE;
GstCaps *caps;
gboolean raw;
g_object_get (pad, "caps", &caps, NULL);
if (!caps)
return;
if (pad == playsink->audio_pad) {
raw = is_raw_pad (pad);
reconfigure = (! !playsink->audio_pad_raw != ! !raw)
&& playsink->audiochain;
GST_DEBUG_OBJECT (pad,
"Audio caps changed: raw %d reconfigure %d caps %" GST_PTR_FORMAT, raw,
reconfigure, caps);
} else if (pad == playsink->video_pad) {
raw = is_raw_pad (pad);
reconfigure = (! !playsink->video_pad_raw != ! !raw)
&& playsink->videochain;
GST_DEBUG_OBJECT (pad,
"Video caps changed: raw %d reconfigure %d caps %" GST_PTR_FORMAT, raw,
reconfigure, caps);
}
gst_caps_unref (caps);
if (reconfigure)
gst_play_sink_reconfigure (playsink);
}
void
gst_play_sink_refresh_pad (GstPlaySink * playsink, GstPad * pad,
GstPlaySinkType type)
{
gulong *block_id = NULL;
GST_DEBUG_OBJECT (playsink, "refresh pad %" GST_PTR_FORMAT, pad);
GST_PLAY_SINK_LOCK (playsink);
if (pad == playsink->video_pad) {
if (type != GST_PLAY_SINK_TYPE_VIDEO)
goto wrong_type;
block_id = &playsink->video_block_id;
} else if (pad == playsink->audio_pad) {
if (type != GST_PLAY_SINK_TYPE_AUDIO)
goto wrong_type;
block_id = &playsink->audio_block_id;
} else if (pad == playsink->text_pad) {
if (type != GST_PLAY_SINK_TYPE_TEXT)
goto wrong_type;
block_id = &playsink->text_block_id;
}
if (type != GST_PLAY_SINK_TYPE_FLUSHING && (block_id && *block_id == 0)) {
GstPad *blockpad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (pad)));
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->blockpad,
playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
*block_id =
gst_pad_add_probe (blockpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
sinkpad_blocked_cb, playsink, NULL);
PENDING_FLAG_SET (playsink, type);
gst_object_unref (blockpad);
}
GST_PLAY_SINK_UNLOCK (playsink);
return;
/* ERRORS */
wrong_type:
{
GST_WARNING_OBJECT (playsink, "wrong type %u for pad %" GST_PTR_FORMAT,
type, pad);
GST_PLAY_SINK_UNLOCK (playsink);
return;
}
}
/**
* gst_play_sink_request_pad
* @playsink: a #GstPlaySink
* @type: a #GstPlaySinkType
*
* Create or return a pad of @type.
*
* Returns: a #GstPad of @type or %NULL when the pad could not be created.
*/
GstPad *
gst_play_sink_request_pad (GstPlaySink * playsink, GstPlaySinkType type)
{
GstPad *res = NULL;
gboolean created = FALSE;
gboolean activate = TRUE;
const gchar *pad_name = NULL;
gulong *block_id = NULL;
GST_DEBUG_OBJECT (playsink, "request pad type %d", type);
GST_PLAY_SINK_LOCK (playsink);
switch (type) {
case GST_PLAY_SINK_TYPE_AUDIO:
pad_name = "audio_sink";
if (!playsink->audio_tee) {
GST_LOG_OBJECT (playsink, "creating tee");
/* create tee when needed. This element will feed the audio sink chain
* and the vis chain. */
playsink->audio_tee = gst_element_factory_make ("tee", "audiotee");
if (playsink->audio_tee == NULL) {
post_missing_element_message (playsink, "tee");
GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"tee"), (NULL));
res = NULL;
break;
}
playsink->audio_tee_sink =
gst_element_get_static_pad (playsink->audio_tee, "sink");
gst_bin_add (GST_BIN_CAST (playsink), playsink->audio_tee);
}
gst_element_set_state (playsink->audio_tee, GST_STATE_PAUSED);
if (!playsink->audio_pad) {
GST_LOG_OBJECT (playsink, "ghosting tee sinkpad");
playsink->audio_pad =
gst_ghost_pad_new (pad_name, playsink->audio_tee_sink);
playsink->audio_notify_caps_id =
g_signal_connect (G_OBJECT (playsink->audio_pad), "notify::caps",
G_CALLBACK (caps_notify_cb), playsink);
created = TRUE;
}
playsink->audio_pad_raw = FALSE;
res = playsink->audio_pad;
block_id = &playsink->audio_block_id;
break;
case GST_PLAY_SINK_TYPE_VIDEO:
pad_name = "video_sink";
if (!playsink->video_pad) {
GST_LOG_OBJECT (playsink, "ghosting videosink");
playsink->video_pad =
gst_ghost_pad_new_no_target (pad_name, GST_PAD_SINK);
playsink->video_notify_caps_id =
g_signal_connect (G_OBJECT (playsink->video_pad), "notify::caps",
G_CALLBACK (caps_notify_cb), playsink);
created = TRUE;
}
playsink->video_pad_raw = FALSE;
res = playsink->video_pad;
block_id = &playsink->video_block_id;
break;
case GST_PLAY_SINK_TYPE_TEXT:
GST_LOG_OBJECT (playsink, "ghosting text");
if (!playsink->text_pad) {
playsink->text_pad =
gst_ghost_pad_new_no_target ("text_sink", GST_PAD_SINK);
created = TRUE;
}
res = playsink->text_pad;
block_id = &playsink->text_block_id;
break;
case GST_PLAY_SINK_TYPE_FLUSHING:
{
gchar *padname;
/* we need a unique padname for the flushing pad. */
padname = g_strdup_printf ("flushing_%u", playsink->count);
res = gst_ghost_pad_new_no_target (padname, GST_PAD_SINK);
g_free (padname);
playsink->count++;
activate = FALSE;
created = TRUE;
break;
}
default:
res = NULL;
break;
}
GST_PLAY_SINK_UNLOCK (playsink);
if (created && res) {
/* we have to add the pad when it's active or we get an error when the
* element is 'running' */
gst_pad_set_active (res, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (playsink), res);
GST_PLAY_SINK_LOCK (playsink);
if (block_id && *block_id == 0) {
GstPad *blockpad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (res)));
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->
blockpad, playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
*block_id =
gst_pad_add_probe (blockpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
sinkpad_blocked_cb, playsink, NULL);
PENDING_FLAG_SET (playsink, type);
gst_object_unref (blockpad);
}
GST_PLAY_SINK_UNLOCK (playsink);
if (!activate)
gst_pad_set_active (res, activate);
}
return res;
}
static GstPad *
gst_play_sink_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * name, const GstCaps * caps)
{
GstPlaySink *psink;
GstPad *pad;
GstPlaySinkType type;
const gchar *tplname;
g_return_val_if_fail (templ != NULL, NULL);
GST_DEBUG_OBJECT (element, "name:%s", name);
psink = GST_PLAY_SINK (element);
tplname = GST_PAD_TEMPLATE_NAME_TEMPLATE (templ);
/* Figure out the GstPlaySinkType based on the template */
if (!strcmp (tplname, "audio_sink") || !strcmp (tplname, "audio_raw_sink"))
type = GST_PLAY_SINK_TYPE_AUDIO;
else if (!strcmp (tplname, "video_sink") ||
!strcmp (tplname, "video_raw_sink"))
type = GST_PLAY_SINK_TYPE_VIDEO;
else if (!strcmp (tplname, "text_sink"))
type = GST_PLAY_SINK_TYPE_TEXT;
else
goto unknown_template;
pad = gst_play_sink_request_pad (psink, type);
return pad;
unknown_template:
GST_WARNING_OBJECT (element, "Unknown pad template");
return NULL;
}
void
gst_play_sink_release_pad (GstPlaySink * playsink, GstPad * pad)
{
GstPad **res = NULL;
gboolean untarget = TRUE;
GST_DEBUG_OBJECT (playsink, "release pad %" GST_PTR_FORMAT, pad);
GST_PLAY_SINK_LOCK (playsink);
if (pad == playsink->video_pad) {
res = &playsink->video_pad;
g_signal_handler_disconnect (playsink->video_pad,
playsink->video_notify_caps_id);
video_set_blocked (playsink, FALSE);
} else if (pad == playsink->audio_pad) {
res = &playsink->audio_pad;
g_signal_handler_disconnect (playsink->audio_pad,
playsink->audio_notify_caps_id);
audio_set_blocked (playsink, FALSE);
} else if (pad == playsink->text_pad) {
res = &playsink->text_pad;
text_set_blocked (playsink, FALSE);
} else {
/* try to release the given pad anyway, these could be the FLUSHING pads. */
res = &pad;
untarget = FALSE;
}
GST_PLAY_SINK_UNLOCK (playsink);
if (*res) {
GST_DEBUG_OBJECT (playsink, "deactivate pad %" GST_PTR_FORMAT, *res);
gst_pad_set_active (*res, FALSE);
if (untarget) {
GST_DEBUG_OBJECT (playsink, "untargeting pad %" GST_PTR_FORMAT, *res);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (*res), NULL);
}
GST_DEBUG_OBJECT (playsink, "remove pad %" GST_PTR_FORMAT, *res);
gst_element_remove_pad (GST_ELEMENT_CAST (playsink), *res);
*res = NULL;
}
}
static void
gst_play_sink_release_request_pad (GstElement * element, GstPad * pad)
{
GstPlaySink *psink = GST_PLAY_SINK (element);
gst_play_sink_release_pad (psink, pad);
}
static void
gst_play_sink_handle_message (GstBin * bin, GstMessage * message)
{
GstPlaySink *playsink;
playsink = GST_PLAY_SINK_CAST (bin);
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_STEP_DONE:
{
GstFormat format;
guint64 amount;
gdouble rate;
gboolean flush, intermediate, eos;
guint64 duration;
GST_INFO_OBJECT (playsink, "Handling step-done message");
gst_message_parse_step_done (message, &format, &amount, &rate, &flush,
&intermediate, &duration, &eos);
if (format == GST_FORMAT_BUFFERS) {
/* for the buffer format, we align the other streams */
if (playsink->audiochain
&& !gst_object_has_as_ancestor (GST_MESSAGE_SRC (message),
GST_OBJECT (playsink->audiochain->chain.bin))) {
GstEvent *event;
event =
gst_event_new_step (GST_FORMAT_TIME, duration, rate, flush,
intermediate);
if (!gst_element_send_event (playsink->audiochain->chain.bin, event)) {
GST_DEBUG_OBJECT (playsink, "Event failed when sent to audio sink");
}
}
}
GST_BIN_CLASS (gst_play_sink_parent_class)->handle_message (bin, message);
break;
}
case GST_MESSAGE_ELEMENT:{
if (gst_is_video_overlay_prepare_window_handle_message (message)) {
GstVideoOverlay *overlay;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element
&& GST_OBJECT_CAST (playsink->overlay_element) !=
GST_MESSAGE_SRC (message)) {
gst_object_unref (playsink->overlay_element);
playsink->overlay_element = NULL;
}
if (!playsink->overlay_element)
playsink->overlay_element =
GST_VIDEO_OVERLAY (gst_object_ref (GST_MESSAGE_SRC (message)));
overlay =
GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
GST_OBJECT_UNLOCK (playsink);
GST_DEBUG_OBJECT (playsink, "Got prepare-xwindow-id message");
if (playsink->overlay_handle_set)
gst_video_overlay_set_window_handle (playsink->overlay_element,
playsink->overlay_handle);
if (playsink->overlay_handle_events_set)
gst_video_overlay_handle_events (playsink->overlay_element,
playsink->overlay_handle_events);
if (playsink->overlay_render_rectangle_set)
gst_video_overlay_set_render_rectangle (playsink->overlay_element,
playsink->overlay_x, playsink->overlay_y,
playsink->overlay_width, playsink->overlay_height);
gst_object_unref (overlay);
gst_message_unref (message);
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (playsink));
} else {
GST_BIN_CLASS (gst_play_sink_parent_class)->handle_message (bin,
message);
}
break;
}
default:
GST_BIN_CLASS (gst_play_sink_parent_class)->handle_message (bin, message);
break;
}
}
/* Send an event to our sinks until one of them works; don't then send to the
* remaining sinks (unlike GstBin)
* Special case: If a text sink is set we need to send the event
* to them in case it's source is different from the a/v stream's source.
*/
static gboolean
gst_play_sink_send_event_to_sink (GstPlaySink * playsink, GstEvent * event,
gboolean force_video)
{
gboolean res = TRUE;
if (playsink->send_event_mode == MODE_FIRST || force_video) {
if (playsink->textchain && playsink->textchain->sink) {
gst_event_ref (event);
if ((res =
gst_element_send_event (playsink->textchain->chain.bin, event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to text sink");
} else {
GST_DEBUG_OBJECT (playsink, "Event failed when sent to text sink");
}
}
if (playsink->videochain) {
gst_event_ref (event);
if ((res =
gst_element_send_event (playsink->videochain->chain.bin,
event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to video sink");
goto done;
}
GST_DEBUG_OBJECT (playsink, "Event failed when sent to video sink");
}
if (!force_video && playsink->audiochain) {
gst_event_ref (event);
if ((res =
gst_element_send_event (playsink->audiochain->chain.bin,
event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to audio sink");
goto done;
}
GST_DEBUG_OBJECT (playsink, "Event failed when sent to audio sink");
} else {
res = FALSE;
}
} else {
return
GST_ELEMENT_CLASS (gst_play_sink_parent_class)->send_event
(GST_ELEMENT_CAST (playsink), event);
}
done:
gst_event_unref (event);
return res;
}
/* We only want to send the event to a single sink (overriding GstBin's
* behaviour), but we want to keep GstPipeline's behaviour - wrapping seek
* events appropriately. So, this is a messy duplication of code. */
static gboolean
gst_play_sink_send_event (GstElement * element, GstEvent * event)
{
gboolean res = FALSE;
GstEventType event_type = GST_EVENT_TYPE (event);
GstPlaySink *playsink;
playsink = GST_PLAY_SINK_CAST (element);
switch (event_type) {
case GST_EVENT_SEEK:
GST_DEBUG_OBJECT (element, "Sending event to a sink");
res = gst_play_sink_send_event_to_sink (playsink, event, FALSE);
break;
case GST_EVENT_STEP:
{
GstFormat format;
guint64 amount;
gdouble rate;
gboolean flush, intermediate;
gst_event_parse_step (event, &format, &amount, &rate, &flush,
&intermediate);
if (format == GST_FORMAT_BUFFERS) {
/* for buffers, we will try to step video frames, for other formats we
* send the step to all sinks */
res = gst_play_sink_send_event_to_sink (playsink, event, TRUE);
} else {
res =
GST_ELEMENT_CLASS (gst_play_sink_parent_class)->send_event (element,
event);
}
break;
}
default:
res =
GST_ELEMENT_CLASS (gst_play_sink_parent_class)->send_event (element,
event);
break;
}
return res;
}
static GstStateChangeReturn
gst_play_sink_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstStateChangeReturn bret;
GstPlaySink *playsink;
playsink = GST_PLAY_SINK (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
playsink->need_async_start = TRUE;
/* we want to go async to PAUSED until we managed to configure and add the
* sinks */
do_async_start (playsink);
ret = GST_STATE_CHANGE_ASYNC;
/* block all pads here */
if (!gst_play_sink_reconfigure (playsink)) {
ret = GST_STATE_CHANGE_FAILURE;
goto activate_failed;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
/* unblock all pads here */
GST_PLAY_SINK_LOCK (playsink);
video_set_blocked (playsink, FALSE);
audio_set_blocked (playsink, FALSE);
text_set_blocked (playsink, FALSE);
if (playsink->vis_pad_block_id)
gst_pad_remove_probe (((GstPlayVisChain *) playsink->vischain)->
blockpad, playsink->vis_pad_block_id);
playsink->vis_pad_block_id = 0;
GST_PLAY_SINK_UNLOCK (playsink);
/* fall through */
case GST_STATE_CHANGE_READY_TO_NULL:
if (playsink->audiochain && playsink->audiochain->sink_volume) {
/* remove our links to the volume elements when they were
* provided by a sink */
disconnect_audio_chain (playsink->audiochain, playsink);
if (playsink->audiochain->volume)
gst_object_unref (playsink->audiochain->volume);
playsink->audiochain->volume = NULL;
}
if (playsink->audiochain && playsink->audiochain->ts_offset) {
gst_object_unref (playsink->audiochain->ts_offset);
playsink->audiochain->ts_offset = NULL;
}
if (playsink->videochain && playsink->videochain->ts_offset) {
gst_object_unref (playsink->videochain->ts_offset);
playsink->videochain->ts_offset = NULL;
}
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
gst_object_unref (playsink->overlay_element);
playsink->overlay_element = NULL;
if (playsink->colorbalance_element) {
g_signal_handler_disconnect (playsink->colorbalance_element,
playsink->colorbalance_value_changed_id);
playsink->colorbalance_value_changed_id = 0;
gst_object_unref (playsink->colorbalance_element);
}
playsink->colorbalance_element = NULL;
GST_OBJECT_UNLOCK (playsink);
ret = GST_STATE_CHANGE_SUCCESS;
break;
default:
/* all other state changes return SUCCESS by default, this value can be
* overridden by the result of the children */
ret = GST_STATE_CHANGE_SUCCESS;
break;
}
/* do the state change of the children */
bret =
GST_ELEMENT_CLASS (gst_play_sink_parent_class)->change_state (element,
transition);
/* now look at the result of our children and adjust the return value */
switch (bret) {
case GST_STATE_CHANGE_FAILURE:
/* failure, we stop */
goto activate_failed;
case GST_STATE_CHANGE_NO_PREROLL:
/* some child returned NO_PREROLL. This is strange but we never know. We
* commit our async state change (if any) and return the NO_PREROLL */
do_async_done (playsink);
ret = bret;
break;
case GST_STATE_CHANGE_ASYNC:
/* some child was async, return this */
ret = bret;
break;
default:
/* return our previously configured return value */
break;
}
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
/* FIXME Release audio device when we implement that */
playsink->need_async_start = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:{
if (playsink->video_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->video_sinkpad_stream_synchronizer);
gst_object_unref (playsink->video_sinkpad_stream_synchronizer);
playsink->video_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->video_srcpad_stream_synchronizer);
playsink->video_srcpad_stream_synchronizer = NULL;
}
if (playsink->audio_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->audio_sinkpad_stream_synchronizer);
gst_object_unref (playsink->audio_sinkpad_stream_synchronizer);
playsink->audio_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->audio_srcpad_stream_synchronizer);
playsink->audio_srcpad_stream_synchronizer = NULL;
gst_play_sink_remove_audio_ssync_queue (playsink);
}
if (playsink->text_sinkpad_stream_synchronizer) {
gst_element_release_request_pad (GST_ELEMENT_CAST
(playsink->stream_synchronizer),
playsink->text_sinkpad_stream_synchronizer);
gst_object_unref (playsink->text_sinkpad_stream_synchronizer);
playsink->text_sinkpad_stream_synchronizer = NULL;
gst_object_unref (playsink->text_srcpad_stream_synchronizer);
playsink->text_srcpad_stream_synchronizer = NULL;
}
}
/* fall through */
case GST_STATE_CHANGE_READY_TO_NULL:
/* remove sinks we added */
if (playsink->videodeinterlacechain) {
activate_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain),
FALSE);
add_chain (GST_PLAY_CHAIN (playsink->videodeinterlacechain), FALSE);
}
if (playsink->videochain) {
activate_chain (GST_PLAY_CHAIN (playsink->videochain), FALSE);
add_chain (GST_PLAY_CHAIN (playsink->videochain), FALSE);
}
if (playsink->audiochain) {
activate_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
add_chain (GST_PLAY_CHAIN (playsink->audiochain), FALSE);
}
if (playsink->vischain) {
activate_chain (GST_PLAY_CHAIN (playsink->vischain), FALSE);
add_chain (GST_PLAY_CHAIN (playsink->vischain), FALSE);
}
if (playsink->textchain) {
activate_chain (GST_PLAY_CHAIN (playsink->textchain), FALSE);
add_chain (GST_PLAY_CHAIN (playsink->textchain), FALSE);
}
do_async_done (playsink);
/* when going to READY, keep elements around as long as possible,
* so they may be re-used faster next time/url around.
* when really going to NULL, clean up everything completely. */
if (transition == GST_STATE_CHANGE_READY_TO_NULL) {
/* Unparent the sinks to allow reuse */
if (playsink->videochain && playsink->videochain->sink)
gst_bin_remove (GST_BIN_CAST (playsink->videochain->chain.bin),
playsink->videochain->sink);
if (playsink->audiochain && playsink->audiochain->sink)
gst_bin_remove (GST_BIN_CAST (playsink->audiochain->chain.bin),
playsink->audiochain->sink);
if (playsink->textchain && playsink->textchain->sink)
gst_bin_remove (GST_BIN_CAST (playsink->textchain->chain.bin),
playsink->textchain->sink);
if (playsink->audio_sink != NULL)
gst_element_set_state (playsink->audio_sink, GST_STATE_NULL);
if (playsink->video_sink != NULL)
gst_element_set_state (playsink->video_sink, GST_STATE_NULL);
if (playsink->visualisation != NULL)
gst_element_set_state (playsink->visualisation, GST_STATE_NULL);
if (playsink->text_sink != NULL)
gst_element_set_state (playsink->text_sink, GST_STATE_NULL);
/* Unparent the filters to allow reuse */
if (playsink->videochain && playsink->videochain->filter)
gst_bin_remove (GST_BIN_CAST (playsink->videochain->chain.bin),
playsink->videochain->filter);
if (playsink->audiochain && playsink->audiochain->filter)
gst_bin_remove (GST_BIN_CAST (playsink->audiochain->chain.bin),
playsink->audiochain->filter);
if (playsink->audio_filter != NULL)
gst_element_set_state (playsink->audio_filter, GST_STATE_NULL);
if (playsink->video_filter != NULL)
gst_element_set_state (playsink->video_filter, GST_STATE_NULL);
free_chain ((GstPlayChain *) playsink->videodeinterlacechain);
playsink->videodeinterlacechain = NULL;
free_chain ((GstPlayChain *) playsink->videochain);
playsink->videochain = NULL;
free_chain ((GstPlayChain *) playsink->audiochain);
playsink->audiochain = NULL;
free_chain ((GstPlayChain *) playsink->vischain);
playsink->vischain = NULL;
free_chain ((GstPlayChain *) playsink->textchain);
playsink->textchain = NULL;
}
break;
default:
break;
}
return ret;
/* ERRORS */
activate_failed:
{
GST_DEBUG_OBJECT (element,
"element failed to change states -- activation problem?");
do_async_done (playsink);
return GST_STATE_CHANGE_FAILURE;
}
}
static void
gst_play_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec)
{
GstPlaySink *playsink = GST_PLAY_SINK (object);
switch (prop_id) {
case PROP_FLAGS:
gst_play_sink_set_flags (playsink, g_value_get_flags (value));
break;
case PROP_VOLUME:
gst_play_sink_set_volume (playsink, g_value_get_double (value));
break;
case PROP_MUTE:
gst_play_sink_set_mute (playsink, g_value_get_boolean (value));
break;
case PROP_FONT_DESC:
gst_play_sink_set_font_desc (playsink, g_value_get_string (value));
break;
case PROP_SUBTITLE_ENCODING:
gst_play_sink_set_subtitle_encoding (playsink,
g_value_get_string (value));
break;
case PROP_VIS_PLUGIN:
gst_play_sink_set_vis_plugin (playsink, g_value_get_object (value));
break;
case PROP_AV_OFFSET:
gst_play_sink_set_av_offset (playsink, g_value_get_int64 (value));
break;
case PROP_TEXT_OFFSET:
gst_play_sink_set_text_offset (playsink, g_value_get_int64 (value));
break;
case PROP_VIDEO_FILTER:
gst_play_sink_set_filter (playsink, GST_PLAY_SINK_TYPE_VIDEO,
g_value_get_object (value));
break;
case PROP_AUDIO_FILTER:
gst_play_sink_set_filter (playsink, GST_PLAY_SINK_TYPE_AUDIO,
g_value_get_object (value));
break;
case PROP_VIDEO_SINK:
gst_play_sink_set_sink (playsink, GST_PLAY_SINK_TYPE_VIDEO,
g_value_get_object (value));
break;
case PROP_AUDIO_SINK:
gst_play_sink_set_sink (playsink, GST_PLAY_SINK_TYPE_AUDIO,
g_value_get_object (value));
break;
case PROP_TEXT_SINK:
gst_play_sink_set_sink (playsink, GST_PLAY_SINK_TYPE_TEXT,
g_value_get_object (value));
break;
case PROP_SEND_EVENT_MODE:
playsink->send_event_mode = g_value_get_enum (value);
break;
case PROP_FORCE_ASPECT_RATIO:{
GstPlayVideoChain *chain;
GstElement *elem;
playsink->force_aspect_ratio = g_value_get_boolean (value);
GST_PLAY_SINK_LOCK (playsink);
if (playsink->videochain) {
chain = (GstPlayVideoChain *) playsink->videochain;
if (chain->sink) {
elem =
gst_play_sink_find_property_sinks (playsink, chain->sink,
"force-aspect-ratio", G_TYPE_BOOLEAN);
if (elem)
g_object_set (elem, "force-aspect-ratio",
playsink->force_aspect_ratio, NULL);
}
}
GST_PLAY_SINK_UNLOCK (playsink);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec);
break;
}
}
static void
gst_play_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec)
{
GstPlaySink *playsink = GST_PLAY_SINK (object);
switch (prop_id) {
case PROP_FLAGS:
g_value_set_flags (value, gst_play_sink_get_flags (playsink));
break;
case PROP_VOLUME:
g_value_set_double (value, gst_play_sink_get_volume (playsink));
break;
case PROP_MUTE:
g_value_set_boolean (value, gst_play_sink_get_mute (playsink));
break;
case PROP_FONT_DESC:
g_value_take_string (value, gst_play_sink_get_font_desc (playsink));
break;
case PROP_SUBTITLE_ENCODING:
g_value_take_string (value,
gst_play_sink_get_subtitle_encoding (playsink));
break;
case PROP_VIS_PLUGIN:
g_value_take_object (value, gst_play_sink_get_vis_plugin (playsink));
break;
case PROP_SAMPLE:
gst_value_take_sample (value, gst_play_sink_get_last_sample (playsink));
break;
case PROP_AV_OFFSET:
g_value_set_int64 (value, gst_play_sink_get_av_offset (playsink));
break;
case PROP_TEXT_OFFSET:
g_value_set_int64 (value, gst_play_sink_get_text_offset (playsink));
break;
case PROP_VIDEO_FILTER:
g_value_take_object (value, gst_play_sink_get_filter (playsink,
GST_PLAY_SINK_TYPE_VIDEO));
break;
case PROP_AUDIO_FILTER:
g_value_take_object (value, gst_play_sink_get_filter (playsink,
GST_PLAY_SINK_TYPE_AUDIO));
break;
case PROP_VIDEO_SINK:
g_value_take_object (value, gst_play_sink_get_sink (playsink,
GST_PLAY_SINK_TYPE_VIDEO));
break;
case PROP_AUDIO_SINK:
g_value_take_object (value, gst_play_sink_get_sink (playsink,
GST_PLAY_SINK_TYPE_AUDIO));
break;
case PROP_TEXT_SINK:
g_value_take_object (value, gst_play_sink_get_sink (playsink,
GST_PLAY_SINK_TYPE_TEXT));
break;
case PROP_SEND_EVENT_MODE:
g_value_set_enum (value, playsink->send_event_mode);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, playsink->force_aspect_ratio);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec);
break;
}
}
static void
gst_play_sink_overlay_expose (GstVideoOverlay * overlay)
{
GstPlaySink *playsink = GST_PLAY_SINK (overlay);
GstVideoOverlay *overlay_element;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
overlay_element =
GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
else
overlay_element = NULL;
GST_OBJECT_UNLOCK (playsink);
if (overlay_element) {
gst_video_overlay_expose (overlay_element);
gst_object_unref (overlay_element);
}
}
static void
gst_play_sink_overlay_handle_events (GstVideoOverlay * overlay,
gboolean handle_events)
{
GstPlaySink *playsink = GST_PLAY_SINK (overlay);
GstVideoOverlay *overlay_element;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
overlay_element =
GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
else
overlay_element = NULL;
GST_OBJECT_UNLOCK (playsink);
playsink->overlay_handle_events_set = TRUE;
playsink->overlay_handle_events = handle_events;
if (overlay_element) {
gst_video_overlay_handle_events (overlay_element, handle_events);
gst_object_unref (overlay_element);
}
}
static void
gst_play_sink_overlay_set_render_rectangle (GstVideoOverlay * overlay, gint x,
gint y, gint width, gint height)
{
GstPlaySink *playsink = GST_PLAY_SINK (overlay);
GstVideoOverlay *overlay_element;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
overlay_element =
GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
else
overlay_element = NULL;
GST_OBJECT_UNLOCK (playsink);
playsink->overlay_render_rectangle_set = TRUE;
playsink->overlay_x = x;
playsink->overlay_y = y;
playsink->overlay_width = width;
playsink->overlay_height = height;
if (overlay_element) {
gst_video_overlay_set_render_rectangle (overlay_element, x, y, width,
height);
gst_object_unref (overlay_element);
}
}
static void
gst_play_sink_overlay_set_window_handle (GstVideoOverlay * overlay,
guintptr handle)
{
GstPlaySink *playsink = GST_PLAY_SINK (overlay);
GstVideoOverlay *overlay_element;
GST_OBJECT_LOCK (playsink);
if (playsink->overlay_element)
overlay_element =
GST_VIDEO_OVERLAY (gst_object_ref (playsink->overlay_element));
else
overlay_element = NULL;
GST_OBJECT_UNLOCK (playsink);
playsink->overlay_handle_set = TRUE;
playsink->overlay_handle = handle;
if (overlay_element) {
gst_video_overlay_set_window_handle (overlay_element, handle);
gst_object_unref (overlay_element);
}
}
static void
gst_play_sink_overlay_init (gpointer g_iface, gpointer g_iface_data)
{
GstVideoOverlayInterface *iface = (GstVideoOverlayInterface *) g_iface;
iface->expose = gst_play_sink_overlay_expose;
iface->handle_events = gst_play_sink_overlay_handle_events;
iface->set_render_rectangle = gst_play_sink_overlay_set_render_rectangle;
iface->set_window_handle = gst_play_sink_overlay_set_window_handle;
}
static void
gst_play_sink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstPlaySink *playsink = GST_PLAY_SINK (navigation);
GstBin *bin = NULL;
GST_PLAY_SINK_LOCK (playsink);
if (playsink->videochain && playsink->videochain->chain.bin)
bin = GST_BIN (gst_object_ref (playsink->videochain->chain.bin));
GST_PLAY_SINK_UNLOCK (playsink);
if (bin) {
GstElement *nav = gst_bin_get_by_interface (bin, GST_TYPE_NAVIGATION);
if (nav) {
gst_navigation_send_event (GST_NAVIGATION (nav), structure);
structure = NULL;
gst_object_unref (nav);
} else {
GstEvent *event = gst_event_new_navigation (structure);
structure = NULL;
gst_element_send_event (GST_ELEMENT (bin), event);
}
gst_object_unref (bin);
}
if (structure)
gst_structure_free (structure);
}
static void
gst_play_sink_navigation_init (gpointer g_iface, gpointer g_iface_data)
{
GstNavigationInterface *iface = (GstNavigationInterface *) g_iface;
iface->send_event = gst_play_sink_navigation_send_event;
}
static const GList *
gst_play_sink_colorbalance_list_channels (GstColorBalance * balance)
{
GstPlaySink *playsink = GST_PLAY_SINK (balance);
return playsink->colorbalance_channels;
}
static void
gst_play_sink_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * proxy, gint value)
{
GstPlaySink *playsink = GST_PLAY_SINK (balance);
GList *l;
gint i;
GstColorBalance *balance_element = NULL;
GST_OBJECT_LOCK (playsink);
if (playsink->colorbalance_element)
balance_element =
GST_COLOR_BALANCE (gst_object_ref (playsink->colorbalance_element));
GST_OBJECT_UNLOCK (playsink);
for (i = 0, l = playsink->colorbalance_channels; l; l = l->next, i++) {
GstColorBalanceChannel *proxy_tmp = l->data;
gdouble new_val;
if (proxy_tmp != proxy)
continue;
playsink->colorbalance_values[i] = value;
if (balance_element) {
GstColorBalanceChannel *channel = NULL;
const GList *channels, *k;
channels = gst_color_balance_list_channels (balance_element);
for (k = channels; k; k = k->next) {
GstColorBalanceChannel *tmp = k->data;
if (g_strrstr (tmp->label, proxy->label)) {
channel = tmp;
break;
}
}
g_assert (channel);
/* Convert to [0, 1] range */
new_val =
((gdouble) value -
(gdouble) proxy->min_value) / ((gdouble) proxy->max_value -
(gdouble) proxy->min_value);
/* Convert to channel range */
new_val =
channel->min_value + new_val * ((gdouble) channel->max_value -
(gdouble) channel->min_value);
gst_color_balance_set_value (balance_element, channel,
(gint) (new_val + 0.5));
gst_object_unref (balance_element);
}
gst_color_balance_value_changed (balance, proxy, value);
break;
}
}
static gint
gst_play_sink_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * proxy)
{
GstPlaySink *playsink = GST_PLAY_SINK (balance);
GList *l;
gint i;
for (i = 0, l = playsink->colorbalance_channels; l; l = l->next, i++) {
GstColorBalanceChannel *proxy_tmp = l->data;
if (proxy_tmp != proxy)
continue;
return playsink->colorbalance_values[i];
}
g_return_val_if_reached (0);
}
static GstColorBalanceType
gst_play_sink_colorbalance_get_balance_type (GstColorBalance * balance)
{
GstPlaySink *playsink = GST_PLAY_SINK (balance);
GstColorBalance *balance_element = NULL;
GstColorBalanceType t = GST_COLOR_BALANCE_SOFTWARE;
GST_OBJECT_LOCK (playsink);
if (playsink->colorbalance_element)
balance_element =
GST_COLOR_BALANCE (gst_object_ref (playsink->colorbalance_element));
GST_OBJECT_UNLOCK (playsink);
if (balance_element) {
t = gst_color_balance_get_balance_type (balance_element);
gst_object_unref (balance_element);
}
return t;
}
static void
gst_play_sink_colorbalance_init (gpointer g_iface, gpointer g_iface_data)
{
GstColorBalanceInterface *iface = (GstColorBalanceInterface *) g_iface;
iface->list_channels = gst_play_sink_colorbalance_list_channels;
iface->set_value = gst_play_sink_colorbalance_set_value;
iface->get_value = gst_play_sink_colorbalance_get_value;
iface->get_balance_type = gst_play_sink_colorbalance_get_balance_type;
}
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