diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/oggparseogm.c')
| -rw-r--r-- | contrib/ffmpeg/libavformat/oggparseogm.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/contrib/ffmpeg/libavformat/oggparseogm.c b/contrib/ffmpeg/libavformat/oggparseogm.c deleted file mode 100644 index 70e53948f..000000000 --- a/contrib/ffmpeg/libavformat/oggparseogm.c +++ /dev/null @@ -1,177 +0,0 @@ -/** - 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. -**/ - -#include <stdlib.h> -#include "avformat.h" -#include "bitstream.h" -#include "bytestream.h" -#include "intreadwrite.h" -#include "oggdec.h" -#include "riff.h" - -static int -ogm_header(AVFormatContext *s, int idx) -{ - ogg_t *ogg = s->priv_data; - ogg_stream_t *os = ogg->streams + idx; - AVStream *st = s->streams[idx]; - const uint8_t *p = os->buf + os->pstart; - uint64_t time_unit; - uint64_t spu; - uint32_t default_len; - - if(!(*p & 1)) - return 0; - if(*p != 1) - return 1; - - p++; - - if(*p == 'v'){ - int tag; - st->codec->codec_type = CODEC_TYPE_VIDEO; - p += 8; - tag = bytestream_get_le32(&p); - st->codec->codec_id = codec_get_id(codec_bmp_tags, tag); - st->codec->codec_tag = tag; - } else if (*p == 't') { - st->codec->codec_type = CODEC_TYPE_SUBTITLE; - st->codec->codec_id = CODEC_ID_TEXT; - p += 12; - } else { - uint8_t acid[5]; - int cid; - st->codec->codec_type = CODEC_TYPE_AUDIO; - p += 8; - bytestream_get_buffer(&p, acid, 4); - acid[4] = 0; - cid = strtol(acid, NULL, 16); - st->codec->codec_id = codec_get_id(codec_wav_tags, cid); - } - - p += 4; /* useless size field */ - - time_unit = bytestream_get_le64(&p); - spu = bytestream_get_le64(&p); - default_len = bytestream_get_le32(&p); - - p += 8; /* buffersize + bits_per_sample */ - - if(st->codec->codec_type == CODEC_TYPE_VIDEO){ - st->codec->width = bytestream_get_le32(&p); - st->codec->height = bytestream_get_le32(&p); - st->codec->time_base.den = spu * 10000000; - st->codec->time_base.num = time_unit; - st->time_base = st->codec->time_base; - } else { - st->codec->channels = bytestream_get_le16(&p); - p += 2; /* block_align */ - st->codec->bit_rate = bytestream_get_le32(&p) * 8; - st->codec->sample_rate = spu * 10000000 / time_unit; - st->time_base.num = 1; - st->time_base.den = st->codec->sample_rate; - } - - return 1; -} - -static int -ogm_dshow_header(AVFormatContext *s, int idx) -{ - ogg_t *ogg = s->priv_data; - ogg_stream_t *os = ogg->streams + idx; - AVStream *st = s->streams[idx]; - uint8_t *p = os->buf + os->pstart; - uint32_t t; - - if(!(*p & 1)) - return 0; - if(*p != 1) - return 1; - - t = AV_RL32(p + 96); - - if(t == 0x05589f80){ - st->codec->codec_type = CODEC_TYPE_VIDEO; - st->codec->codec_id = codec_get_id(codec_bmp_tags, AV_RL32(p + 68)); - st->codec->time_base.den = 10000000; - st->codec->time_base.num = AV_RL64(p + 164); - st->codec->width = AV_RL32(p + 176); - st->codec->height = AV_RL32(p + 180); - } else if(t == 0x05589f81){ - st->codec->codec_type = CODEC_TYPE_AUDIO; - st->codec->codec_id = codec_get_id(codec_wav_tags, AV_RL16(p + 124)); - st->codec->channels = AV_RL16(p + 126); - st->codec->sample_rate = AV_RL32(p + 128); - st->codec->bit_rate = AV_RL32(p + 132) * 8; - } - - return 1; -} - -static int -ogm_packet(AVFormatContext *s, int idx) -{ - ogg_t *ogg = s->priv_data; - ogg_stream_t *os = ogg->streams + idx; - uint8_t *p = os->buf + os->pstart; - int lb; - - if(*p & 8) - os->pflags |= PKT_FLAG_KEY; - - lb = ((*p & 2) << 1) | ((*p >> 6) & 3); - os->pstart += lb + 1; - os->psize -= lb + 1; - - return 0; -} - -ogg_codec_t ogm_video_codec = { - .magic = "\001video", - .magicsize = 6, - .header = ogm_header, - .packet = ogm_packet -}; - -ogg_codec_t ogm_audio_codec = { - .magic = "\001audio", - .magicsize = 6, - .header = ogm_header, - .packet = ogm_packet -}; - -ogg_codec_t ogm_text_codec = { - .magic = "\001text", - .magicsize = 5, - .header = ogm_header, - .packet = ogm_packet -}; - -ogg_codec_t ogm_old_codec = { - .magic = "\001Direct Show Samples embedded in Ogg", - .magicsize = 35, - .header = ogm_dshow_header, - .packet = ogm_packet -}; |