diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/oggparseogm.c')
| -rw-r--r-- | contrib/ffmpeg/libavformat/oggparseogm.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/contrib/ffmpeg/libavformat/oggparseogm.c b/contrib/ffmpeg/libavformat/oggparseogm.c deleted file mode 100644 index 8788e5d41..000000000 --- a/contrib/ffmpeg/libavformat/oggparseogm.c +++ /dev/null @@ -1,166 +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 "bswap.h" -#include "ogg2.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]; - 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 = le2me_32(unaligned32(p)); - st->codec->codec_id = codec_get_bmp_id(tag); - st->codec->codec_tag = tag; - } else { - int cid; - st->codec->codec_type = CODEC_TYPE_AUDIO; - p += 8; - p[4] = 0; - cid = strtol(p, NULL, 16); - st->codec->codec_id = codec_get_wav_id(cid); - } - - p += 4; - p += 4; /* useless size field */ - - time_unit = le2me_64(unaligned64(p)); - p += 8; - spu = le2me_64(unaligned64(p)); - p += 8; - default_len = le2me_32(unaligned32(p)); - p += 4; - - p += 8; /* buffersize + bits_per_sample */ - - if(st->codec->codec_type == CODEC_TYPE_VIDEO){ - st->codec->width = le2me_32(unaligned32(p)); - p += 4; - st->codec->height = le2me_32(unaligned32(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 = le2me_16(unaligned16(p)); - p += 2; - p += 2; /* block_align */ - st->codec->bit_rate = le2me_32(unaligned32(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 = le2me_32(unaligned32(p + 96)); - - if(t == 0x05589f80){ - st->codec->codec_type = CODEC_TYPE_VIDEO; - st->codec->codec_id = codec_get_bmp_id(le2me_32(unaligned32(p + 68))); - st->codec->time_base.den = 10000000; - st->codec->time_base.num = le2me_64(unaligned64(p + 164)); - st->codec->width = le2me_32(unaligned32(p + 176)); - st->codec->height = le2me_32(unaligned32(p + 180)); - } else if(t == 0x05589f81){ - st->codec->codec_type = CODEC_TYPE_AUDIO; - st->codec->codec_id = codec_get_wav_id(le2me_16(unaligned16(p+124))); - st->codec->channels = le2me_16(unaligned16(p + 126)); - st->codec->sample_rate = le2me_32(unaligned32(p + 128)); - st->codec->bit_rate = le2me_32(unaligned32(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; - - 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_old_codec = { - .magic = "\001Direct Show Samples embedded in Ogg", - .magicsize = 35, - .header = ogm_dshow_header, - .packet = ogm_packet -}; |