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matroskadec: parse the WAVEFORMATEX header and discard it from extradata 

Originally committed as revision 16672 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2009-01-18 17:13:12 +00:00
parent 5a44906d8e
commit 68a71451f6
1 changed files with 7 additions and 2 deletions
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9
libavformat/matroskadec.c
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@ -1201,8 +1201,13 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
} else if (!strcmp(track->codec_id, "A_MS/ACM")
&& track->codec_priv.size >= 18
&& track->codec_priv.data != NULL) {
uint16_t tag = AV_RL16(track->codec_priv.data);
codec_id = codec_get_id(codec_wav_tags, tag);
ByteIOContext b;
init_put_byte(&b, track->codec_priv.data, track->codec_priv.size,
URL_RDONLY, NULL, NULL, NULL, NULL);
get_wav_header(&b, st->codec, track->codec_priv.size);
codec_id = st->codec->codec_id;
extradata_offset = 18;
track->codec_priv.size -= extradata_offset;
} else if (!strcmp(track->codec_id, "V_QUICKTIME")
&& (track->codec_priv.size >= 86)
&& (track->codec_priv.data != NULL)) {