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matroskadec: fix handling of A_MS/ACM track with no extradata

Originally committed as revision 20131 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2009-10-01 21:14:05 +00:00
parent 22a7e19b50
commit 038146e9cf

View File

@ -1248,13 +1248,13 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
codec_id = ff_codec_get_id(ff_codec_bmp_tags, track->video.fourcc);
extradata_offset = 40;
} else if (!strcmp(track->codec_id, "A_MS/ACM")
&& track->codec_priv.size >= 18
&& track->codec_priv.size >= 14
&& track->codec_priv.data != NULL) {
init_put_byte(&b, track->codec_priv.data, track->codec_priv.size,
URL_RDONLY, NULL, NULL, NULL, NULL);
ff_get_wav_header(&b, st->codec, track->codec_priv.size);
codec_id = st->codec->codec_id;
extradata_offset = 18;
extradata_offset = FFMIN(track->codec_priv.size, 18);
} else if (!strcmp(track->codec_id, "V_QUICKTIME")
&& (track->codec_priv.size >= 86)
&& (track->codec_priv.data != NULL)) {