[FFmpeg-trac] #7412(undetermined:new): [ffmpeg-qsv][hevc] some cases decode failed on iHD driver.

FFmpeg trac at avcodec.org
Tue Sep 11 03:05:14 EEST 2018

#7412: [ffmpeg-qsv][hevc] some cases decode failed on iHD driver.
             Reporter:               |                    Owner:
  zhuqingliang                       |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  qsv hevc     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by jkqxz):

 RAP_B_Bossen_1.bit works for me with libmfx.

 It looks like libmfx barfs on files with missing profile information?  All
 of DBLK_*_VIXS_1.bit, ENTP_*_LG_*.bit, IPRED_C_Mitsubishi_2.bit,
 TMVP_A_MS_2.bit and TSKIP_A_MS_2.bit have this problem and are therefore
 technically invalid, but the libavcodec decoder handles this case so they
 do work fine with VAAPI using the same hardware.

 PICSIZE_D_Bossen_1.bin is 4216 samples wide, maybe libmfx has some problem
 with that?  There isn't anything else interesting about it as far as I can
 tell (and it is intended to be a picture size test).  It does work file
 with VAAPI, so it's not a hardware issue.

 Can you share the files
 "MSFT/MSHDRef_Texture_SkinTones_08_320x240p24f_randomaccess_main.bin" and

Ticket URL: <https://trac.ffmpeg.org/ticket/7412#comment:1>
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