[FFmpeg-trac] #75(avcodec:open): Chroma corruption with specific Fraps sample

[FFmpeg]

#75: Chroma corruption with specific Fraps sample
-------------------------+----------------------
Reporter:  Snowknight26  |       Owner:
    Type:  defect        |      Status:  open
Priority:  normal        |   Component:  avcodec
 Version:  git           |  Resolution:
Keywords:  fraps         |  Blocked By:
Blocking:                |  Reproduced:  1
Analyzed:  0             |
-------------------------+----------------------
Changes (by cehoyos):

 * keywords:   => fraps
 * status:  new => open
 * reproduced:  0 => 1


Comment:

 Three frames attached, they play fine with mplayer -vc fraps, ffmpeg shows
 blue artefacts for the first and third frame.
 {{{
 ffmpeg -v 9 -loglevel 99 -i fraps_artefacts.avi out%1d.png
 FFmpeg version git-N-29241-gddb00ad, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Apr 20 2011 11:37:48 with gcc 4.4.5
   configuration: --cc='/usr/local/gcc-4.4.5/bin/gcc -m32' --disable-asm
   libavutil    51.  0. 0 / 51.  0. 0
   libavcodec   53.  0. 0 / 53.  0. 0
   libavformat  53.  0. 0 / 53.  0. 0
   libavdevice  53.  0. 0 / 53.  0. 0
   libavfilter   2.  0. 0 /  2.  0. 0
   libswscale    0. 13. 0 /  0. 13. 0
 [NULL @ 0x8c64390] Format avi probed with size=2048 and score=100
 [avi @ 0x8c64390] All info found
 Input #0, avi, from 'fraps_artefacts.avi':
   Metadata:
     encoder         : Lavf53.0.0
   Duration: 00:00:00.05, start: 0.000000, bitrate: 329638 kb/s
     Stream #0.0, 1, 1/60: Video: fraps, bgr24, 960x540, 1/60, 60 tbr, 60
 tbn, 60 tbc
 Incompatible pixel format 'bgr24' for codec 'png', auto-selecting format
 'rgb24'
 [buffer @ 0x8c65ce0] w:960 h:540 pixfmt:bgr24
 [ffsink @ 0x8c65f30] auto-inserting filter 'auto-inserted scaler 0'
 between the filter 'src' and the filter 'out'
 [scale @ 0x8c6a4f0] w:960 h:540 fmt:bgr24 -> w:960 h:540 fmt:rgb24
 flags:0x4
 Output #0, image2, to 'out%1d.png':
   Metadata:
     encoder         : Lavf53.0.0
     Stream #0.0, 0, 1/90000: Video: png, rgb24, 960x540, 1/60, q=2-31, 200
 kb/s, 90k tbn, 60 tbc
 Stream mapping:
   Stream #0.0 -> #0.0
 Press [q] to stop encoding
 frame=    3 fps=  0 q=0.0 Lsize=      -0kB time=0.05 bitrate=  -3.5kbits/s
 video:3255kB audio:0kB global headers:0kB muxing overhead -100.000660%
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/75#comment:1>
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