Opened 13 years ago

Closed 13 years ago

#852 closed defect (worksforme)

Color Bleeding in Playback of WMV files

Reported by: sbowline@… Owned by: beastd
Priority: important Component: vd
Version: 1.0rc1 Severity: normal
Keywords: Cc:
Blocked By: Blocking:
Reproduced by developer: Analyzed by developer:


Some .wmv files exhibit severe chroma bleeding during playback or re-encoding. But not all. I have sample files and screenshots of the problem at the following URL:

The .avi file is just a stream copy from an ASF file into an .avi container. Note how, especially under motion, some colors bleed (notably reds) and continue to drift across the screen. Then they reset at certain "key" frames. This makes watching the races almost impossible because you cannot tell the color of the bike!

This problem is not unique to Mac OS/X as the color problems are evident on the AMD64 build on my SUSE Linux machine as well. Also of note is that it is not necessarily a problem with the stream itself as these files play just fine with Windows Media Player. It's also not restricted to just live stream ripping. Ripping pre-recorded files will also exhibit the problem; however, it does seem to be related to only the the "Hi-Res" videos which have the following encoding info:

ASF file format detected.
VIDEO: [WMV3] 720x576 24bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:

name: Nickel & Dime British Grand Prix
author: Dorna Sports S.L.
copyright: 2007

Requested video codec family [wmv9dmo] (vfm=dmo) not available.
Enable it at compilation.
Requested video codec family [wmvdmo] (vfm=dmo) not available.
Enable it at compilation.
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffwmv3] vfm: ffmpeg (FFmpeg M$ WMV3/WMV9)
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 1 ch, s16be, 48.0 kbit/6.81% (ratio: 6003->88200)
Selected audio codec: [ffwmav2] afm: ffmpeg (DivX audio v2 (FFmpeg))
AO: [macosx] 44100Hz 1ch s16be (2 bytes per sample)
Starting playback...
VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
SwScaler?: using unscaled yuv420p -> yuyv422 special converter
VO: [macosx] 720x576 => 720x576 Packed YUY2

Change History (1)

comment:1 Changed 13 years ago by reimar

  • Component changed from vo to vd
  • Resolution set to worksforme
  • Status changed from new to closed

No problem for me with SVN. rc1 is ancient, get some newer version.

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