mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-11 20:01:35 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/ext/ogg/gstoggstream.h

106 lines
3.1 KiB
C
Raw Normal View History

ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
/* GStreamer
* Copyright (C) 2009 David Schleef <ds@schleef.org>
*
* gstoggstream.h: header for GstOggStream
*
* 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.
*/
#ifndef __GST_OGG_STREAM_H__
#define __GST_OGG_STREAM_H__
#include <ogg/ogg.h>
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstOggStream GstOggStream;
struct _GstOggStream
{
ogg_stream_state stream;
oggdemux: use right type for the serialno Use a consistent type for the serialno to avoid problems when comparing between signed and unsigned variants. Fixes #607926
2010-01-25 14:14:56 +00:00
glong serialno;
ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
GList *headers;
oggdemux: push headers when activating chains Keep a list of headers for each stream of a chain. When a chain is activated, push the headers before pushing the data so that decoders can sync. Fix seeking in chains, take the chain start time into account when comparing timestamps. See #606382
2010-01-08 15:57:40 +00:00
gboolean have_headers;
GList *queued;
ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
/* for oggparse */
gboolean in_headers;
GList *unknown_pages;
gint map;
gboolean is_skeleton;
gboolean have_fisbone;
gint granulerate_n;
gint granulerate_d;
guint32 preroll;
guint granuleshift;
gint n_header_packets;
gint n_header_packets_seen;
gint64 accumulated_granule;
gint frame_size;
oggdemux: use bitrate to estimate length in pushmode Parse the bitrate from the various streams. Use the bitrate and the upstream length in bytes to estimate the total stream duration in push mode.
2010-04-30 15:41:05 +00:00
gint bitrate;
ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
GstCaps *caps;
/* vorbis stuff */
int nln_increments[4];
int nsn_increment;
int short_size;
int long_size;
int vorbis_log2_num_modes;
int vorbis_mode_sizes[256];
oggdemux: Fix vorbis parsing Add a granule to granulepos conversion function. Fix the duration function for vorbis. Handle timestamps on header packets differently and be more careful about calculating OFFSET and OFFSET_END. After this change, timestamps for vorbis don't exactly match up with the timestamps that vorbisparse outputs, but it's unclear if vorbisparse is actually correct and it would add a lot more code to make oggdemux match vorbisparse. Fixes #602790.
2009-11-25 05:22:03 +00:00
int last_size;
oggdemux: handle theora streams with 0 keyoffset
2009-11-26 01:04:41 +00:00
/* theora stuff */
gboolean theora_has_zero_keyoffset;
oggdemux: reimplement OGM support OGM demuxing no longer requires helper elements. It's done internally in oggdemux. Vorbis comments are still not handled because I don't have anything to test with.
2009-12-04 04:05:29 +00:00
/* OGM stuff */
gboolean is_ogm;
gboolean is_ogm_text;
oggdemux: clean up fishead/fisbone parsing Remove some redundant code for parsing fishead streams. Actually use the data we parsed (mostly start_time).
2010-03-01 12:50:32 +00:00
/* fishead stuff */
gint64 prestime;
gint64 basetime;
ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
};
gboolean gst_ogg_stream_setup_map (GstOggStream * pad, ogg_packet *packet);
GstClockTime gst_ogg_stream_get_end_time_for_granulepos (GstOggStream *pad,
gint64 granulepos);
GstClockTime gst_ogg_stream_get_start_time_for_granulepos (GstOggStream *pad,
gint64 granulepos);
GstClockTime gst_ogg_stream_granule_to_time (GstOggStream *pad, gint64 granule);
gint64 gst_ogg_stream_granulepos_to_granule (GstOggStream * pad, gint64 granulepos);
oggdemux: Fix timestamp generation for theora Timestamp generation was broken by the last commit for formats with a non-zero granule shift. Also keep track of the last keyframe so that we can regenerate granulepos for theora.
2009-11-25 06:08:09 +00:00
gint64 gst_ogg_stream_granulepos_to_key_granule (GstOggStream * pad, gint64 granulepos);
oggdemux: Fix vorbis parsing Add a granule to granulepos conversion function. Fix the duration function for vorbis. Handle timestamps on header packets differently and be more careful about calculating OFFSET and OFFSET_END. After this change, timestamps for vorbis don't exactly match up with the timestamps that vorbisparse outputs, but it's unclear if vorbisparse is actually correct and it would add a lot more code to make oggdemux match vorbisparse. Fixes #602790.
2009-11-25 05:22:03 +00:00
gint64 gst_ogg_stream_granule_to_granulepos (GstOggStream * pad, gint64 granule, gint64 keyframe_granule);
ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
GstClockTime gst_ogg_stream_get_packet_start_time (GstOggStream *pad,
ogg_packet *packet);
gboolean gst_ogg_stream_granulepos_is_key_frame (GstOggStream *pad,
gint64 granulepos);
gboolean gst_ogg_stream_packet_is_header (GstOggStream *pad, ogg_packet *packet);
gint64 gst_ogg_stream_get_packet_duration (GstOggStream * pad, ogg_packet *packet);
oggdemux: clean up fishead/fisbone parsing Remove some redundant code for parsing fishead streams. Actually use the data we parsed (mostly start_time).
2010-03-01 12:50:32 +00:00
gboolean gst_ogg_map_parse_fisbone (GstOggStream * pad, const guint8 * data, guint size,
guint32 * serialno);
gboolean gst_ogg_map_add_fisbone (GstOggStream * pad, const guint8 * data, guint size,
GstClockTime * p_start_time);
ogg: Add ogg stream parsing Adds code that parses headers of various formats encapsulated in Ogg in order to calculate timestamps and durations of each buffer. Removes the creation of helper decoder elements to do this calculation via conversion queries. Fixes: #344013, #568014.
2009-08-29 17:51:48 +00:00
G_END_DECLS
#endif /* __GST_OGG_STREAM_H__ */
Reference in a new issue Copy permalink