mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-25 17:50:36 +00:00
118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/* GStreamer Matroska muxer/demuxer
|
|
* (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* (C) 2006 Tim-Philipp Müller <tim centricular net>
|
|
*
|
|
* matroska-ids.c: matroska track context utility functions
|
|
*
|
|
* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "matroska-ids.h"
|
|
|
|
gboolean
|
|
gst_matroska_track_init_video_context (GstMatroskaTrackContext ** p_context)
|
|
{
|
|
GstMatroskaTrackVideoContext *video_context;
|
|
|
|
g_assert (p_context != NULL && *p_context != NULL);
|
|
|
|
/* already set up? (track info might come before track type) */
|
|
if ((*p_context)->type == GST_MATROSKA_TRACK_TYPE_VIDEO) {
|
|
GST_LOG ("video context already set up");
|
|
return TRUE;
|
|
}
|
|
|
|
/* it better not have been set up as some other track type ... */
|
|
if ((*p_context)->type != 0) {
|
|
g_return_val_if_reached (FALSE);
|
|
}
|
|
|
|
video_context = g_renew (GstMatroskaTrackVideoContext, *p_context, 1);
|
|
*p_context = (GstMatroskaTrackContext *) video_context;
|
|
|
|
/* defaults */
|
|
(*p_context)->type = GST_MATROSKA_TRACK_TYPE_VIDEO;
|
|
video_context->display_width = 0;
|
|
video_context->display_height = 0;
|
|
video_context->pixel_width = 0;
|
|
video_context->pixel_height = 0;
|
|
video_context->asr_mode = 0;
|
|
video_context->fourcc = 0;
|
|
video_context->default_fps = 0.0;
|
|
video_context->earliest_time = GST_CLOCK_TIME_NONE;
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gst_matroska_track_init_audio_context (GstMatroskaTrackContext ** p_context)
|
|
{
|
|
GstMatroskaTrackAudioContext *audio_context;
|
|
|
|
g_assert (p_context != NULL && *p_context != NULL);
|
|
|
|
/* already set up? (track info might come before track type) */
|
|
if ((*p_context)->type == GST_MATROSKA_TRACK_TYPE_AUDIO)
|
|
return TRUE;
|
|
|
|
/* it better not have been set up as some other track type ... */
|
|
if ((*p_context)->type != 0) {
|
|
g_return_val_if_reached (FALSE);
|
|
}
|
|
|
|
audio_context = g_renew (GstMatroskaTrackAudioContext, *p_context, 1);
|
|
*p_context = (GstMatroskaTrackContext *) audio_context;
|
|
|
|
/* defaults */
|
|
(*p_context)->type = GST_MATROSKA_TRACK_TYPE_AUDIO;
|
|
audio_context->channels = 1;
|
|
audio_context->samplerate = 8000;
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gst_matroska_track_init_subtitle_context (GstMatroskaTrackContext ** p_context)
|
|
{
|
|
GstMatroskaTrackSubtitleContext *subtitle_context;
|
|
|
|
g_assert (p_context != NULL && *p_context != NULL);
|
|
|
|
/* already set up? (track info might come before track type) */
|
|
if ((*p_context)->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE)
|
|
return TRUE;
|
|
|
|
/* it better not have been set up as some other track type ... */
|
|
if ((*p_context)->type != 0) {
|
|
g_return_val_if_reached (FALSE);
|
|
}
|
|
|
|
subtitle_context = g_renew (GstMatroskaTrackSubtitleContext, *p_context, 1);
|
|
*p_context = (GstMatroskaTrackContext *) subtitle_context;
|
|
|
|
(*p_context)->type = GST_MATROSKA_TRACK_TYPE_SUBTITLE;
|
|
subtitle_context->invalid_utf8 = FALSE;
|
|
subtitle_context->seen_markup_tag = FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
gst_matroska_register_tags (void)
|
|
{
|
|
/* TODO: register other custom tags */
|
|
}
|