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Set fixed chunksize for ASF header in MMS streams, as per MSDN documentation. 

This fixes playback of at least one MMST stream.

Patch by Zhentan Feng <spyfeng gmail com>.

Originally committed as revision 24793 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zhentan Feng 2010-08-13 17:08:57 +00:00 committed by Ronald S. Bultje
parent 99ab8ff049
commit c46000c1ff
1 changed files with 6 additions and 1 deletions
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7
libavformat/mms.c
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@ -68,7 +68,12 @@ int ff_mms_asf_header_parser(MMSContext *mms)
p += sizeof(ff_asf_guid) + 14; p += sizeof(ff_asf_guid) + 14;
while(end - p >= sizeof(ff_asf_guid) + 8) { while(end - p >= sizeof(ff_asf_guid) + 8) {
uint64_t chunksize = AV_RL64(p + sizeof(ff_asf_guid)); uint64_t chunksize;
if (!memcmp(p, ff_asf_data_header, sizeof(ff_asf_guid))) {
chunksize = 50; // see Reference [2] section 5.1
} else {
chunksize = AV_RL64(p + sizeof(ff_asf_guid));
}
if (!chunksize || chunksize > end - p) { if (!chunksize || chunksize > end - p) {
av_log(NULL, AV_LOG_ERROR, av_log(NULL, AV_LOG_ERROR,
"Corrupt stream (header chunksize %"PRId64" is invalid)\n", "Corrupt stream (header chunksize %"PRId64" is invalid)\n",