gstreamer/gst-libs/gst/play/gstplay-media-info.c
Stephan Hesse a74651ddc1 play: Introducing the new playback library
This aims to be a replacement for the GstPlayer library. In GstPlay, notifications are
sent as application messages through a dedicated GstBus. The GMainContext-based
signal dispatcher was replaced by a GObject signal adapter, now relying on the
bus to emit its signals. The signal dispatcher is now optional and fully
decoupled from the GstPlay object.

Co-authored with: Philippe Normand <philn@igalia.com>

Fixes #394

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2061>
2021-03-09 18:03:48 +00:00

933 lines
21 KiB
C

/* GStreamer
*
* Copyright (C) 2015 Brijesh Singh <brijesh.ksingh@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:gstplay-mediainfo
* @title: GstPlayMediaInfo
* @short_description: Play Media Information
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstplay-media-info.h"
#include "gstplay-media-info-private.h"
/* Per-stream information */
G_DEFINE_ABSTRACT_TYPE (GstPlayStreamInfo, gst_play_stream_info, G_TYPE_OBJECT);
static void
gst_play_stream_info_init (GstPlayStreamInfo * sinfo)
{
sinfo->stream_index = -1;
}
static void
gst_play_stream_info_finalize (GObject * object)
{
GstPlayStreamInfo *sinfo = GST_PLAY_STREAM_INFO (object);
g_free (sinfo->codec);
g_free (sinfo->stream_id);
if (sinfo->caps)
gst_caps_unref (sinfo->caps);
if (sinfo->tags)
gst_tag_list_unref (sinfo->tags);
G_OBJECT_CLASS (gst_play_stream_info_parent_class)->finalize (object);
}
static void
gst_play_stream_info_class_init (GstPlayStreamInfoClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->finalize = gst_play_stream_info_finalize;
}
/**
* gst_play_stream_info_get_index:
* @info: a #GstPlayStreamInfo
*
* Function to get stream index from #GstPlayStreamInfo instance.
*
* Returns: the stream index of this stream.
* Since: 1.20
*/
gint
gst_play_stream_info_get_index (const GstPlayStreamInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_STREAM_INFO (info), -1);
return info->stream_index;
}
/**
* gst_play_stream_info_get_stream_type:
* @info: a #GstPlayStreamInfo
*
* Function to return human readable name for the stream type
* of the given @info (ex: "audio", "video", "subtitle")
*
* Returns: a human readable name
* Since: 1.20
*/
const gchar *
gst_play_stream_info_get_stream_type (const GstPlayStreamInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_STREAM_INFO (info), NULL);
if (GST_IS_PLAY_VIDEO_INFO (info))
return "video";
else if (GST_IS_PLAY_AUDIO_INFO (info))
return "audio";
else
return "subtitle";
}
/**
* gst_play_stream_info_get_tags:
* @info: a #GstPlayStreamInfo
*
* Returns: (transfer none): the tags contained in this stream.
* Since: 1.20
*/
GstTagList *
gst_play_stream_info_get_tags (const GstPlayStreamInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_STREAM_INFO (info), NULL);
return info->tags;
}
/**
* gst_play_stream_info_get_codec:
* @info: a #GstPlayStreamInfo
*
* A string describing codec used in #GstPlayStreamInfo.
*
* Returns: codec string or NULL on unknown.
* Since: 1.20
*/
const gchar *
gst_play_stream_info_get_codec (const GstPlayStreamInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_STREAM_INFO (info), NULL);
return info->codec;
}
/**
* gst_play_stream_info_get_caps:
* @info: a #GstPlayStreamInfo
*
* Returns: (transfer none): the #GstCaps of the stream.
* Since: 1.20
*/
GstCaps *
gst_play_stream_info_get_caps (const GstPlayStreamInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_STREAM_INFO (info), NULL);
return info->caps;
}
/* Video information */
G_DEFINE_TYPE (GstPlayVideoInfo, gst_play_video_info,
GST_TYPE_PLAY_STREAM_INFO);
static void
gst_play_video_info_init (GstPlayVideoInfo * info)
{
info->width = -1;
info->height = -1;
info->framerate_num = 0;
info->framerate_denom = 1;
info->par_num = 1;
info->par_denom = 1;
}
static void
gst_play_video_info_class_init (G_GNUC_UNUSED GstPlayVideoInfoClass * klass)
{
/* nothing to do here */
}
/**
* gst_play_video_info_get_width:
* @info: a #GstPlayVideoInfo
*
* Returns: the width of video in #GstPlayVideoInfo.
* Since: 1.20
*/
gint
gst_play_video_info_get_width (const GstPlayVideoInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_VIDEO_INFO (info), -1);
return info->width;
}
/**
* gst_play_video_info_get_height:
* @info: a #GstPlayVideoInfo
*
* Returns: the height of video in #GstPlayVideoInfo.
* Since: 1.20
*/
gint
gst_play_video_info_get_height (const GstPlayVideoInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_VIDEO_INFO (info), -1);
return info->height;
}
/**
* gst_play_video_info_get_framerate:
* @info: a #GstPlayVideoInfo
* @fps_n: (out): Numerator of frame rate
* @fps_d: (out): Denominator of frame rate
*
* Since: 1.20
*/
void
gst_play_video_info_get_framerate (const GstPlayVideoInfo * info,
gint * fps_n, gint * fps_d)
{
g_return_if_fail (GST_IS_PLAY_VIDEO_INFO (info));
*fps_n = info->framerate_num;
*fps_d = info->framerate_denom;
}
/**
* gst_play_video_info_get_pixel_aspect_ratio:
* @info: a #GstPlayVideoInfo
* @par_n: (out): numerator
* @par_d: (out): denominator
*
* Returns the pixel aspect ratio in @par_n and @par_d
*
* Since: 1.20
*/
void
gst_play_video_info_get_pixel_aspect_ratio (const GstPlayVideoInfo * info,
guint * par_n, guint * par_d)
{
g_return_if_fail (GST_IS_PLAY_VIDEO_INFO (info));
*par_n = info->par_num;
*par_d = info->par_denom;
}
/**
* gst_play_video_info_get_bitrate:
* @info: a #GstPlayVideoInfo
*
* Returns: the current bitrate of video in #GstPlayVideoInfo.
* Since: 1.20
*/
gint
gst_play_video_info_get_bitrate (const GstPlayVideoInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_VIDEO_INFO (info), -1);
return info->bitrate;
}
/**
* gst_play_video_info_get_max_bitrate:
* @info: a #GstPlayVideoInfo
*
* Returns: the maximum bitrate of video in #GstPlayVideoInfo.
* Since: 1.20
*/
gint
gst_play_video_info_get_max_bitrate (const GstPlayVideoInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_VIDEO_INFO (info), -1);
return info->max_bitrate;
}
/* Audio information */
G_DEFINE_TYPE (GstPlayAudioInfo, gst_play_audio_info,
GST_TYPE_PLAY_STREAM_INFO);
static void
gst_play_audio_info_init (GstPlayAudioInfo * info)
{
info->channels = 0;
info->sample_rate = 0;
info->bitrate = -1;
info->max_bitrate = -1;
}
static void
gst_play_audio_info_finalize (GObject * object)
{
GstPlayAudioInfo *info = GST_PLAY_AUDIO_INFO (object);
g_free (info->language);
G_OBJECT_CLASS (gst_play_audio_info_parent_class)->finalize (object);
}
static void
gst_play_audio_info_class_init (GstPlayAudioInfoClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->finalize = gst_play_audio_info_finalize;
}
/**
* gst_play_audio_info_get_language:
* @info: a #GstPlayAudioInfo
*
* Returns: the language of the stream, or NULL if unknown.
* Since: 1.20
*/
const gchar *
gst_play_audio_info_get_language (const GstPlayAudioInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_AUDIO_INFO (info), NULL);
return info->language;
}
/**
* gst_play_audio_info_get_channels:
* @info: a #GstPlayAudioInfo
*
* Returns: the number of audio channels in #GstPlayAudioInfo.
* Since: 1.20
*/
gint
gst_play_audio_info_get_channels (const GstPlayAudioInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_AUDIO_INFO (info), 0);
return info->channels;
}
/**
* gst_play_audio_info_get_sample_rate:
* @info: a #GstPlayAudioInfo
*
* Returns: the audio sample rate in #GstPlayAudioInfo.
* Since: 1.20
*/
gint
gst_play_audio_info_get_sample_rate (const GstPlayAudioInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_AUDIO_INFO (info), 0);
return info->sample_rate;
}
/**
* gst_play_audio_info_get_bitrate:
* @info: a #GstPlayAudioInfo
*
* Returns: the audio bitrate in #GstPlayAudioInfo.
* Since: 1.20
*/
gint
gst_play_audio_info_get_bitrate (const GstPlayAudioInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_AUDIO_INFO (info), -1);
return info->bitrate;
}
/**
* gst_play_audio_info_get_max_bitrate:
* @info: a #GstPlayAudioInfo
*
* Returns: the audio maximum bitrate in #GstPlayAudioInfo.
* Since: 1.20
*/
gint
gst_play_audio_info_get_max_bitrate (const GstPlayAudioInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_AUDIO_INFO (info), -1);
return info->max_bitrate;
}
/* Subtitle information */
G_DEFINE_TYPE (GstPlaySubtitleInfo, gst_play_subtitle_info,
GST_TYPE_PLAY_STREAM_INFO);
static void
gst_play_subtitle_info_init (G_GNUC_UNUSED GstPlaySubtitleInfo * info)
{
/* nothing to do */
}
static void
gst_play_subtitle_info_finalize (GObject * object)
{
GstPlaySubtitleInfo *info = GST_PLAY_SUBTITLE_INFO (object);
g_free (info->language);
G_OBJECT_CLASS (gst_play_subtitle_info_parent_class)->finalize (object);
}
static void
gst_play_subtitle_info_class_init (GstPlaySubtitleInfoClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->finalize = gst_play_subtitle_info_finalize;
}
/**
* gst_play_subtitle_info_get_language:
* @info: a #GstPlaySubtitleInfo
*
* Returns: the language of the stream, or NULL if unknown.
* Since: 1.20
*/
const gchar *
gst_play_subtitle_info_get_language (const GstPlaySubtitleInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_SUBTITLE_INFO (info), NULL);
return info->language;
}
/* Global media information */
G_DEFINE_TYPE (GstPlayMediaInfo, gst_play_media_info, G_TYPE_OBJECT);
static void
gst_play_media_info_init (GstPlayMediaInfo * info)
{
info->duration = -1;
info->is_live = FALSE;
info->seekable = FALSE;
}
static void
gst_play_media_info_finalize (GObject * object)
{
GstPlayMediaInfo *info = GST_PLAY_MEDIA_INFO (object);
g_free (info->uri);
if (info->tags)
gst_tag_list_unref (info->tags);
g_free (info->title);
g_free (info->container);
if (info->image_sample)
gst_sample_unref (info->image_sample);
if (info->audio_stream_list)
g_list_free (info->audio_stream_list);
if (info->video_stream_list)
g_list_free (info->video_stream_list);
if (info->subtitle_stream_list)
g_list_free (info->subtitle_stream_list);
if (info->stream_list)
g_list_free_full (info->stream_list, g_object_unref);
G_OBJECT_CLASS (gst_play_media_info_parent_class)->finalize (object);
}
static void
gst_play_media_info_class_init (GstPlayMediaInfoClass * klass)
{
GObjectClass *oclass = (GObjectClass *) klass;
oclass->finalize = gst_play_media_info_finalize;
}
static GstPlayVideoInfo *
gst_play_video_info_new (void)
{
return g_object_new (GST_TYPE_PLAY_VIDEO_INFO, NULL);
}
static GstPlayAudioInfo *
gst_play_audio_info_new (void)
{
return g_object_new (GST_TYPE_PLAY_AUDIO_INFO, NULL);
}
static GstPlaySubtitleInfo *
gst_play_subtitle_info_new (void)
{
return g_object_new (GST_TYPE_PLAY_SUBTITLE_INFO, NULL);
}
static GstPlayStreamInfo *
gst_play_video_info_copy (GstPlayVideoInfo * ref)
{
GstPlayVideoInfo *ret;
ret = gst_play_video_info_new ();
ret->width = ref->width;
ret->height = ref->height;
ret->framerate_num = ref->framerate_num;
ret->framerate_denom = ref->framerate_denom;
ret->par_num = ref->par_num;
ret->par_denom = ref->par_denom;
ret->bitrate = ref->bitrate;
ret->max_bitrate = ref->max_bitrate;
return (GstPlayStreamInfo *) ret;
}
static GstPlayStreamInfo *
gst_play_audio_info_copy (GstPlayAudioInfo * ref)
{
GstPlayAudioInfo *ret;
ret = gst_play_audio_info_new ();
ret->sample_rate = ref->sample_rate;
ret->channels = ref->channels;
ret->bitrate = ref->bitrate;
ret->max_bitrate = ref->max_bitrate;
if (ref->language)
ret->language = g_strdup (ref->language);
return (GstPlayStreamInfo *) ret;
}
static GstPlayStreamInfo *
gst_play_subtitle_info_copy (GstPlaySubtitleInfo * ref)
{
GstPlaySubtitleInfo *ret;
ret = gst_play_subtitle_info_new ();
if (ref->language)
ret->language = g_strdup (ref->language);
return (GstPlayStreamInfo *) ret;
}
GstPlayStreamInfo *
gst_play_stream_info_copy (GstPlayStreamInfo * ref)
{
GstPlayStreamInfo *info = NULL;
if (!ref)
return NULL;
if (GST_IS_PLAY_VIDEO_INFO (ref))
info = gst_play_video_info_copy ((GstPlayVideoInfo *) ref);
else if (GST_IS_PLAY_AUDIO_INFO (ref))
info = gst_play_audio_info_copy ((GstPlayAudioInfo *) ref);
else
info = gst_play_subtitle_info_copy ((GstPlaySubtitleInfo *) ref);
info->stream_index = ref->stream_index;
if (ref->tags)
info->tags = gst_tag_list_ref (ref->tags);
if (ref->caps)
info->caps = gst_caps_copy (ref->caps);
if (ref->codec)
info->codec = g_strdup (ref->codec);
if (ref->stream_id)
info->stream_id = g_strdup (ref->stream_id);
return info;
}
GstPlayMediaInfo *
gst_play_media_info_copy (GstPlayMediaInfo * ref)
{
GList *l;
GstPlayMediaInfo *info;
if (!ref)
return NULL;
info = gst_play_media_info_new (ref->uri);
info->duration = ref->duration;
info->seekable = ref->seekable;
info->is_live = ref->is_live;
if (ref->tags)
info->tags = gst_tag_list_ref (ref->tags);
if (ref->title)
info->title = g_strdup (ref->title);
if (ref->container)
info->container = g_strdup (ref->container);
if (ref->image_sample)
info->image_sample = gst_sample_ref (ref->image_sample);
for (l = ref->stream_list; l != NULL; l = l->next) {
GstPlayStreamInfo *s;
s = gst_play_stream_info_copy ((GstPlayStreamInfo *) l->data);
info->stream_list = g_list_append (info->stream_list, s);
if (GST_IS_PLAY_AUDIO_INFO (s))
info->audio_stream_list = g_list_append (info->audio_stream_list, s);
else if (GST_IS_PLAY_VIDEO_INFO (s))
info->video_stream_list = g_list_append (info->video_stream_list, s);
else
info->subtitle_stream_list =
g_list_append (info->subtitle_stream_list, s);
}
return info;
}
GstPlayStreamInfo *
gst_play_stream_info_new (gint stream_index, GType type)
{
GstPlayStreamInfo *info = NULL;
if (type == GST_TYPE_PLAY_AUDIO_INFO)
info = (GstPlayStreamInfo *) gst_play_audio_info_new ();
else if (type == GST_TYPE_PLAY_VIDEO_INFO)
info = (GstPlayStreamInfo *) gst_play_video_info_new ();
else
info = (GstPlayStreamInfo *) gst_play_subtitle_info_new ();
info->stream_index = stream_index;
return info;
}
GstPlayMediaInfo *
gst_play_media_info_new (const gchar * uri)
{
GstPlayMediaInfo *info;
g_return_val_if_fail (uri != NULL, NULL);
info = g_object_new (GST_TYPE_PLAY_MEDIA_INFO, NULL);
info->uri = g_strdup (uri);
return info;
}
/**
* gst_play_media_info_get_uri:
* @info: a #GstPlayMediaInfo
*
* Returns: the URI associated with #GstPlayMediaInfo.
* Since: 1.20
*/
const gchar *
gst_play_media_info_get_uri (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->uri;
}
/**
* gst_play_media_info_is_seekable:
* @info: a #GstPlayMediaInfo
*
* Returns: %TRUE if the media is seekable.
* Since: 1.20
*/
gboolean
gst_play_media_info_is_seekable (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), FALSE);
return info->seekable;
}
/**
* gst_play_media_info_is_live:
* @info: a #GstPlayMediaInfo
*
* Returns: %TRUE if the media is live.
* Since: 1.20
*/
gboolean
gst_play_media_info_is_live (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), FALSE);
return info->is_live;
}
/**
* gst_play_media_info_get_stream_list:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlayStreamInfo): A #GList of
* matching #GstPlayStreamInfo.
* Since: 1.20
*/
GList *
gst_play_media_info_get_stream_list (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->stream_list;
}
/**
* gst_play_media_info_get_video_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlayVideoInfo): A #GList of
* matching #GstPlayVideoInfo.
* Since: 1.20
*/
GList *
gst_play_media_info_get_video_streams (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->video_stream_list;
}
/**
* gst_play_media_info_get_subtitle_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlaySubtitleInfo): A #GList of
* matching #GstPlaySubtitleInfo.
* Since: 1.20
*/
GList *
gst_play_media_info_get_subtitle_streams (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->subtitle_stream_list;
}
/**
* gst_play_media_info_get_audio_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlayAudioInfo): A #GList of
* matching #GstPlayAudioInfo.
* Since: 1.20
*/
GList *
gst_play_media_info_get_audio_streams (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->audio_stream_list;
}
/**
* gst_play_media_info_get_duration:
* @info: a #GstPlayMediaInfo
*
* Returns: duration of the media.
* Since: 1.20
*/
GstClockTime
gst_play_media_info_get_duration (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), -1);
return info->duration;
}
/**
* gst_play_media_info_get_tags:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none): the tags contained in media info.
* Since: 1.20
*/
GstTagList *
gst_play_media_info_get_tags (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->tags;
}
/**
* gst_play_media_info_get_title:
* @info: a #GstPlayMediaInfo
*
* Returns: the media title.
* Since: 1.20
*/
const gchar *
gst_play_media_info_get_title (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->title;
}
/**
* gst_play_media_info_get_container_format:
* @info: a #GstPlayMediaInfo
*
* Returns: the container format.
* Since: 1.20
*/
const gchar *
gst_play_media_info_get_container_format (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->container;
}
/**
* gst_play_media_info_get_image_sample:
* @info: a #GstPlayMediaInfo
*
* Function to get the image (or preview-image) stored in taglist.
* Application can use `gst_sample_*_()` API's to get caps, buffer etc.
*
* Returns: (transfer none): GstSample or NULL.
* Since: 1.20
*/
GstSample *
gst_play_media_info_get_image_sample (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), NULL);
return info->image_sample;
}
/**
* gst_play_media_info_get_number_of_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: number of total streams.
* Since: 1.20
*/
guint
gst_play_media_info_get_number_of_streams (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), 0);
return g_list_length (info->stream_list);
}
/**
* gst_play_media_info_get_number_of_video_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: number of video streams.
* Since: 1.20
*/
guint
gst_play_media_info_get_number_of_video_streams (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), 0);
return g_list_length (info->video_stream_list);
}
/**
* gst_play_media_info_get_number_of_audio_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: number of audio streams.
* Since: 1.20
*/
guint
gst_play_media_info_get_number_of_audio_streams (const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), 0);
return g_list_length (info->audio_stream_list);
}
/**
* gst_play_media_info_get_number_of_subtitle_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: number of subtitle streams.
* Since: 1.20
*/
guint gst_play_media_info_get_number_of_subtitle_streams
(const GstPlayMediaInfo * info)
{
g_return_val_if_fail (GST_IS_PLAY_MEDIA_INFO (info), 0);
return g_list_length (info->subtitle_stream_list);
}
/**
* gst_play_get_video_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlayVideoInfo): A #GList of
* matching #GstPlayVideoInfo.
* Since: 1.20
*/
#ifndef GST_REMOVE_DEPRECATED
GList *
gst_play_get_video_streams (const GstPlayMediaInfo * info)
{
return gst_play_media_info_get_video_streams (info);
}
#endif
/**
* gst_play_get_audio_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlayAudioInfo): A #GList of
* matching #GstPlayAudioInfo.
* Since: 1.20
*/
#ifndef GST_REMOVE_DEPRECATED
GList *
gst_play_get_audio_streams (const GstPlayMediaInfo * info)
{
return gst_play_media_info_get_audio_streams (info);
}
#endif
/**
* gst_play_get_subtitle_streams:
* @info: a #GstPlayMediaInfo
*
* Returns: (transfer none) (element-type GstPlaySubtitleInfo): A #GList of
* matching #GstPlaySubtitleInfo.
* Since: 1.20
*/
#ifndef GST_REMOVE_DEPRECATED
GList *
gst_play_get_subtitle_streams (const GstPlayMediaInfo * info)
{
return gst_play_media_info_get_subtitle_streams (info);
}
#endif