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workaround for files, mainly d-cinema, with 0 sized tags especially UMID in source clip, 377M B.10,13 clearly mentions that this is non standard though

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Originally committed as revision 6230 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2006-09-11 22:05:43 +00:00
parent 9fe84b5385
commit d70e3ff410
1 changed files with 3 additions and 1 deletions
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libavformat/mxf.c
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@ -319,7 +319,10 @@ static int mxf_read_metadata_source_clip(MXFContext *mxf, KLVPacket *klv)
int tag = get_be16(pb);
int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
bytes_read += size + 4;
dprintf("tag 0x%04X, size %d\n", tag, size);
if (!size) /* ignore empty tag, needed for some files with empty UMID tag */
continue;
switch (tag) {
case 0x3C0A:
get_buffer(pb, source_clip->uid, 16);
@ -341,7 +344,6 @@ static int mxf_read_metadata_source_clip(MXFContext *mxf, KLVPacket *klv)
default:
url_fskip(pb, size);
}
bytes_read += size + 4;
}
source_clip->type = SourceClip;
return mxf_add_metadata_set(mxf, source_clip);