Bug 55985 - [SNB IVB HSW] Overflow shown during HRD test
[SNB IVB HSW] Overflow shown during HRD test
Product: libva
Classification: Unclassified
Component: intel
Other All
: medium normal
Assigned To: haihao
Depends on:
  Show dependency treegraph
Reported: 2012-10-15 01:20 UTC by Du Yan
Modified: 2013-03-05 01:43 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:


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Description Du Yan 2012-10-15 01:20:16 UTC

Intel driver: 
commit 84bc0b4cd257404a0fd47186b3459df6d29abb5b
Author: Li,Xiaowei <xiaowei.a.li@intel.com>
Date:   Tue Sep 25 13:09:13 2012 +0800

commit 11ef676d6722b5d203b2eff2639de515510c5673
Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Date:   Thu Oct 4 15:28:07 2012 +0200

Bug Info:
HRD analysis failed. 
Error showed: buffer overflow at 9.921 sec. (432 072 bits)

Reproduce steps:
1.      xinit &
2.      avcenc 1920 1080 /home/encoder/encoderbitstreams.bak/1080p_blue_sky.yuv
/tmp/1.264 fb=20000 mode=1
3.      Analysis the 1.264 file with Elecard Buffer Analyzer, then HRD test
4.      avcenc 704 576
/home/encoder/encoderbitstreams.bak/CITY_704x576_30_orig_01.yuv /tmp/2.264
fb=20000 mode=1
5.      Analysis the 2.264 file with Elecard Buffer Analyzer, overflow error
Comment 1 Ouping Zhang 2013-02-04 09:32:31 UTC
libva(staging) 21649988d6b532cc96f633db017d1e4369f640e9
intel-driver(staging) 8bab2d909dc11a9044d8049f334cc60d23c0ee61

for 704x576 YUV file, which encoded with "fb=20000 mode=1", HRD failed, buffer overflow.

cmd: avcenc 704 576 /home/encoder/encoderbitstreams.bak/CITY_704x576_30_orig_01.yuv /tmp/2.264 fb=20000 mode=1
Comment 2 Du Yan 2013-03-05 01:42:59 UTC
it is caused by avcenc tools. pls refer to #bug 61779