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Diffstat (limited to 'ffmpeg/libavformat/oggparseogm.c')
-rw-r--r--ffmpeg/libavformat/oggparseogm.c211
1 files changed, 0 insertions, 211 deletions
diff --git a/ffmpeg/libavformat/oggparseogm.c b/ffmpeg/libavformat/oggparseogm.c
deleted file mode 100644
index fe4c1f2..0000000
--- a/ffmpeg/libavformat/oggparseogm.c
+++ /dev/null
@@ -1,211 +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 "libavutil/avassert.h"
-#include "libavutil/intreadwrite.h"
-#include "libavcodec/get_bits.h"
-#include "libavcodec/bytestream.h"
-#include "avformat.h"
-#include "internal.h"
-#include "oggdec.h"
-#include "riff.h"
-
-static int
-ogm_header(AVFormatContext *s, int idx)
-{
- struct ogg *ogg = s->priv_data;
- struct ogg_stream *os = ogg->streams + idx;
- AVStream *st = s->streams[idx];
- GetByteContext p;
- uint64_t time_unit;
- uint64_t spu;
- uint32_t size;
-
- bytestream2_init(&p, os->buf + os->pstart, os->psize);
- if (!(bytestream2_peek_byte(&p) & 1))
- return 0;
-
- if (bytestream2_peek_byte(&p) == 1) {
- bytestream2_skip(&p, 1);
-
- if (bytestream2_peek_byte(&p) == 'v'){
- int tag;
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- bytestream2_skip(&p, 8);
- tag = bytestream2_get_le32(&p);
- st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, tag);
- st->codec->codec_tag = tag;
- } else if (bytestream2_peek_byte(&p) == 't') {
- st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
- st->codec->codec_id = AV_CODEC_ID_TEXT;
- bytestream2_skip(&p, 12);
- } else {
- uint8_t acid[5] = { 0 };
- int cid;
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- bytestream2_skip(&p, 8);
- bytestream2_get_buffer(&p, acid, 4);
- acid[4] = 0;
- cid = strtol(acid, NULL, 16);
- st->codec->codec_id = ff_codec_get_id(ff_codec_wav_tags, cid);
- // our parser completely breaks AAC in Ogg
- if (st->codec->codec_id != AV_CODEC_ID_AAC)
- st->need_parsing = AVSTREAM_PARSE_FULL;
- }
-
- size = bytestream2_get_le32(&p);
- size = FFMIN(size, os->psize);
- time_unit = bytestream2_get_le64(&p);
- spu = bytestream2_get_le64(&p);
- bytestream2_skip(&p, 4); /* default_len */
- bytestream2_skip(&p, 8); /* buffersize + bits_per_sample */
-
- if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
- st->codec->width = bytestream2_get_le32(&p);
- st->codec->height = bytestream2_get_le32(&p);
- avpriv_set_pts_info(st, 64, time_unit, spu * 10000000);
- } else {
- st->codec->channels = bytestream2_get_le16(&p);
- bytestream2_skip(&p, 2); /* block_align */
- st->codec->bit_rate = bytestream2_get_le32(&p) * 8;
- st->codec->sample_rate = time_unit ? spu * 10000000 / time_unit : 0;
- avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
- if (size >= 56 && st->codec->codec_id == AV_CODEC_ID_AAC) {
- bytestream2_skip(&p, 4);
- size -= 4;
- }
- if (size > 52) {
- av_assert0(FF_INPUT_BUFFER_PADDING_SIZE <= 52);
- size -= 52;
- ff_alloc_extradata(st->codec, size);
- bytestream2_get_buffer(&p, st->codec->extradata, st->codec->extradata_size);
- }
- }
- } else if (bytestream2_peek_byte(&p) == 3) {
- bytestream2_skip(&p, 7);
- if (bytestream2_get_bytes_left(&p) > 1)
- ff_vorbis_comment(s, &st->metadata, p.buffer, bytestream2_get_bytes_left(&p) - 1);
- }
-
- return 1;
-}
-
-static int
-ogm_dshow_header(AVFormatContext *s, int idx)
-{
- struct ogg *ogg = s->priv_data;
- struct ogg_stream *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;
-
- if (os->psize < 100)
- return AVERROR_INVALIDDATA;
- t = AV_RL32(p + 96);
-
- if(t == 0x05589f80){
- if (os->psize < 184)
- return AVERROR_INVALIDDATA;
-
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, AV_RL32(p + 68));
- avpriv_set_pts_info(st, 64, AV_RL64(p + 164), 10000000);
- st->codec->width = AV_RL32(p + 176);
- st->codec->height = AV_RL32(p + 180);
- } else if(t == 0x05589f81){
- if (os->psize < 136)
- return AVERROR_INVALIDDATA;
-
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = ff_codec_get_id(ff_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)
-{
- struct ogg *ogg = s->priv_data;
- struct ogg_stream *os = ogg->streams + idx;
- uint8_t *p = os->buf + os->pstart;
- int lb;
-
- if(*p & 8)
- os->pflags |= AV_PKT_FLAG_KEY;
-
- lb = ((*p & 2) << 1) | ((*p >> 6) & 3);
- os->pstart += lb + 1;
- os->psize -= lb + 1;
-
- while (lb--)
- os->pduration += p[lb+1] << (lb*8);
-
- return 0;
-}
-
-const struct ogg_codec ff_ogm_video_codec = {
- .magic = "\001video",
- .magicsize = 6,
- .header = ogm_header,
- .packet = ogm_packet,
- .granule_is_start = 1,
- .nb_header = 2,
-};
-
-const struct ogg_codec ff_ogm_audio_codec = {
- .magic = "\001audio",
- .magicsize = 6,
- .header = ogm_header,
- .packet = ogm_packet,
- .granule_is_start = 1,
- .nb_header = 2,
-};
-
-const struct ogg_codec ff_ogm_text_codec = {
- .magic = "\001text",
- .magicsize = 5,
- .header = ogm_header,
- .packet = ogm_packet,
- .granule_is_start = 1,
- .nb_header = 2,
-};
-
-const struct ogg_codec ff_ogm_old_codec = {
- .magic = "\001Direct Show Samples embedded in Ogg",
- .magicsize = 35,
- .header = ogm_dshow_header,
- .packet = ogm_packet,
- .granule_is_start = 1,
- .nb_header = 1,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 10:11:50 +0000