00001 /* 00002 Copyright (C) 2008 Reimar Döffinger 00003 00004 Permission is hereby granted, free of charge, to any person 00005 obtaining a copy of this software and associated documentation 00006 files (the "Software"), to deal in the Software without 00007 restriction, including without limitation the rights to use, copy, 00008 modify, merge, publish, distribute, sublicense, and/or sell copies 00009 of the Software, and to permit persons to whom the Software is 00010 furnished to do so, subject to the following conditions: 00011 00012 The above copyright notice and this permission notice shall be 00013 included in all copies or substantial portions of the Software. 00014 00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00016 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00017 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00018 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 00019 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 00020 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00021 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 00022 DEALINGS IN THE SOFTWARE. 00023 **/ 00024 00025 #include <stdlib.h> 00026 #include "libavutil/bswap.h" 00027 #include "libavutil/avstring.h" 00028 #include "libavcodec/bitstream.h" 00029 #include "libavcodec/bytestream.h" 00030 #include "avformat.h" 00031 #include "oggdec.h" 00032 00033 static int speex_header(AVFormatContext *s, int idx) { 00034 struct ogg *ogg = s->priv_data; 00035 struct ogg_stream *os = ogg->streams + idx; 00036 AVStream *st = s->streams[idx]; 00037 uint8_t *p = os->buf + os->pstart; 00038 00039 if (os->psize < 80) 00040 return 1; 00041 00042 st->codec->codec_type = CODEC_TYPE_AUDIO; 00043 st->codec->codec_id = CODEC_ID_SPEEX; 00044 00045 st->codec->sample_rate = AV_RL32(p + 36); 00046 st->codec->channels = AV_RL32(p + 48); 00047 st->codec->extradata_size = os->psize; 00048 st->codec->extradata = av_malloc(st->codec->extradata_size); 00049 memcpy(st->codec->extradata, p, st->codec->extradata_size); 00050 00051 st->time_base.num = 1; 00052 st->time_base.den = st->codec->sample_rate; 00053 00054 return 0; 00055 } 00056 00057 const struct ogg_codec ff_speex_codec = { 00058 .magic = "Speex ", 00059 .magicsize = 8, 00060 .header = speex_header 00061 };
1.5.8