[FFmpeg-trac] #606(avcodec:new): cook vc1 ac3/dca avidec's problem.

FFmpeg trac at avcodec.org
Thu Nov 3 09:59:07 CET 2011

#606: cook vc1 ac3/dca avidec's problem.
             Reporter:  kyh96403  |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avcodec   |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
 I found some bug...


 at line 1078 it maybe changed by
 "if (avctx->extradata_size >= 8)" -> "if (extradata_size >= 8)"
 sample: RV3.COOK [Test].rm

 vc1 decoder
 Image is incorrect
 (before version(interlace supported) is ok...)
 sample: vc1_error_spilt.avi

 ac3/dca decoder
 at x86_64 version ff_int32_to_float_fmul_scalar_sse and
 ff_int32_to_float_fmul_scalar_sse2 is crash or noise
 sample: vc1_error_spilt.avi(dca) is crash.
 sample: ac3_error_spilt.ts(ac3) has noise.


 sample: 60fps.avi audio's pts is double speed.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/606>
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