[FFmpeg-trac] #3138(undetermined:new): VDPAU: MPEG-4 Video Corruption/Garbling with Radeon hardware decoding

FFmpeg trac at avcodec.org
Thu Nov 14 17:23:52 CET 2013

#3138: VDPAU: MPEG-4 Video Corruption/Garbling with Radeon hardware decoding
             Reporter:  aphirst      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  2.1
  undetermined                       |               Blocked By:
             Keywords:               |  Reproduced by developer:  0
  vdpau,hwdec,radeon,mpeg4           |
             Blocking:               |
Analyzed by developer:  0            |
 == Relevant Software / Hardware: ==
 * AMD E2-1800 APU (/w Radeon HD 7340)
 * Linux 3.12 (Distro: Arch)
 * FFmpeg version 2.1
 * mesa, mesa-libgl & ati-dri 9.2.3
 * mplayer r36498
 * mpv 0.2.3 or git (14/11/2013)

 == Summary of the bug: ==
 With both mplayer and mpv, some video files encoded using "MPEG-4 part 2"
 render/decode incorrectly using VDPAU hardware decoding on my AMD graphics
 chipset. For the record, these files render/decode fine using other
 methods (e.g. XV or OpenGL), and worked fine back when I was using
 Catalyst and VA-API.

 I've attached mpv & mplayer logs to this ticket, and also the output from
 vdpauinfo and ffprobe.

 == How to reproduce: ==
 * call mplayer / mpv with the appropriate arguments to enable VDPAU
 decoding and rendering on an affected file
 * observe noticeable garbling and and green-coloured blocking artefacts

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3138>
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