Ogg demuxer ported from tcvp by Luca Barbato <lu_zero at gentoo dot org>,

fixups by me.

Originally committed as revision 4113 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 84 insertions, 0 deletions

diff --git a/libavformat/ogg2.h b/libavformat/ogg2.h
new file mode 100644
index 0000000000..b1146e314c
--- /dev/null
+++ b/libavformat/ogg2.h
@@ -0,0 +1,84 @@
+/**
+    Copyright (C) 2005  Michael Ahlberg, Måns Rullgård
+
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation
+    files (the "Software"), to deal in the Software without
+    restriction, including without limitation the rights to use, copy,
+    modify, merge, publish, distribute, sublicense, and/or sell copies
+    of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+    HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+**/
+
+#ifndef OGG_H
+#define OGG_H
+
+#include "avformat.h"
+
+typedef struct ogg_codec {
+    uint8_t *magic;
+    uint8_t magicsize;
+    int8_t *name;
+    int (*header)(AVFormatContext *, int);
+    int (*packet)(AVFormatContext *, int);
+} ogg_codec_t;
+
+typedef struct ogg_stream {
+    uint8_t *buf;
+    unsigned int bufsize;
+    unsigned int bufpos;
+    unsigned int pstart;
+    unsigned int psize;
+    uint32_t serial;
+    uint32_t seq;
+    uint64_t granule, lastgp;
+    int flags;
+    ogg_codec_t *codec;
+    int header;
+    int nsegs, segp;
+    uint8_t segments[255];
+} ogg_stream_t;
+
+typedef struct ogg_state {
+    uint64_t pos;
+    int curidx;
+    struct ogg_state *next;
+    ogg_stream_t streams[];
+} ogg_state_t;
+
+typedef struct ogg {
+    ogg_stream_t *streams;
+    int nstreams;
+    int headers;
+    int curidx;
+    uint64_t size;
+    ogg_state_t *state;
+} ogg_t;
+
+#define OGG_FLAG_CONT 1
+#define OGG_FLAG_BOS  2
+#define OGG_FLAG_EOS  4
+
+extern ogg_codec_t vorbis_codec;
+#if 0
+extern ogg_codec_t ogm_video_codec;
+extern ogg_codec_t ogm_audio_codec;
+extern ogg_codec_t ogm_old_codec;
+extern ogg_codec_t flac_codec;
+#endif
+
+extern int vorbis_comment(AVFormatContext *ms, char *buf, int size);
+
+#endif