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77db559306
Original commit message from CVS: Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first broad testing. I've revived rifflib. Rifflib used to be a bytestream-for-riff, which just dup'ed bytestream. I've rewritten rifflib to be a modern riff- chunk parser that uses bytestream fully, plus adds some extra functions so that riff file parsing becomes extremely easy. It also contains some small usability functions for strh/strf and metadata parsing. Note that it doesn't use the new tagging yet, that's a TODO. Avidemux has been rewritten to use this. I think we all agreed that avidemux was pretty much a big mess, which is because it used all sort of bytestream magic all around the place. It was just ugly. This is a lot nicer, very complete and safe. I think this is far more robust than what the old avidemux could ever have been. Of course, it might contain bugs, please let me know. EBML writing has also been implemented. This is useful for matroska. I'm intending to modify avidemux (with a riffwriter) similarly. Maybe I'll change wavparse/-enc too to use rifflib. Lastly, several plugins have been modified to use rifflib's fourcc parsing instead of their own. this puts fourcc parsing in one central place, which should make it a lot simpler to add new fourccs. We might want to move this to its own lib instead of rifflib. Enjoy!
118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __ASF_DEMUX_H__
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#define __ASF_DEMUX_H__
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#include <gst/gst.h>
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#include <gst/bytestream/bytestream.h>
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#include "asfheaders.h"
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G_BEGIN_DECLS
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#define GST_TYPE_ASF_DEMUX \
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(asf_demux_get_type())
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#define GST_ASF_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASF_DEMUX,GstASFDemux))
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#define GST_ASF_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASF_DEMUX,GstASFDemux))
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#define GST_IS_ASF_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASF_DEMUX))
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#define GST_IS_ASF_DEMUX_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASF_DEMUX))
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typedef struct _GstASFDemux GstASFDemux;
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typedef struct _GstASFDemuxClass GstASFDemuxClass;
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struct _GstASFStreamContext {
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GstPad *pad;
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guint64 pts;
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};
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typedef struct
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{
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GstPad *pad;
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guint16 id;
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guint32 frag_offset;
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guint32 sequence;
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guint64 delay;
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GstBuffer *payload;
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} asf_stream_context;
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struct _GstASFDemux {
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GstElement element;
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/* pads */
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GstPad *sinkpad;
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GstByteStream *bs;
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#define GST_ASF_DEMUX_NUM_VIDEO_PADS 16
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#define GST_ASF_DEMUX_NUM_AUDIO_PADS 32
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#define GST_ASF_DEMUX_NUM_STREAMS 23
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#define GST_ASF_DEMUX_NUM_STREAM_IDS 127
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/* stream output pads */
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GstPad *video_pad[GST_ASF_DEMUX_NUM_VIDEO_PADS];
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gint64 video_PTS[GST_ASF_DEMUX_NUM_VIDEO_PADS];
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GstPad *audio_pad[GST_ASF_DEMUX_NUM_AUDIO_PADS];
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gint64 audio_PTS[GST_ASF_DEMUX_NUM_AUDIO_PADS];
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guint64 last_seek;
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gboolean restart;
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guint32 bitrate[GST_ASF_DEMUX_NUM_STREAM_IDS];
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/* Demuxing state */
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guint32 num_audio_streams;
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guint32 num_video_streams;
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guint32 num_streams;
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asf_stream_context stream[GST_ASF_DEMUX_NUM_STREAMS];
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guint32 packet_size;
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guint32 timestamp;
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guint32 play_time;
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guint64 preroll;
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guint64 pts;
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/* Descrambler settings */
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guint8 span;
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guint16 ds_packet_size;
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guint16 ds_chunk_size;
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guint16 ds_data_size;
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};
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struct _GstASFDemuxClass {
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GstElementClass parent_class;
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};
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GType gst_asf_demux_get_type(void);
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gboolean gst_asf_demux_plugin_init (GModule *module, GstPlugin *plugin);
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G_END_DECLS
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#endif /* __ASF_DEMUX_H__ */
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