[FFmpeg-trac] #1031(swscale:reopened): yuv420p to rgb24 wrong pixels at end of rows

FFmpeg trac at avcodec.org
Sat Oct 13 00:12:41 CEST 2012


#1031: yuv420p to rgb24 wrong pixels at end of rows
-------------------------------------+-------------------------------------
             Reporter:  SephiRok     |                    Owner:  michael
                 Type:  defect       |                   Status:  reopened
             Priority:  important    |                Component:  swscale
              Version:  1.0          |               Resolution:
             Keywords:  regression   |               Blocked By:
  yuv2rgb                            |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Could you provide command line and complete, uncut console output for a
 new failing version (either 1.0 or git head)?
 I tested git head, 1.0 and a4c22e3 and while the issue is very clearly
 visible for the old version, it is unreproducible here with 1.0 and git
 head.
 {{{
 $ md5sum Output.avi
 54e993efc87efa40f4c8b6c0c2be8731  Output.avi
 $ ffmpeg -i Output.avi -vframes 1 out.png
 ffmpeg version N-45400-gcdfa926 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Oct 13 2012 00:10:32 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      51. 76.100 / 51. 76.100
   libavcodec     54. 65.100 / 54. 65.100
   libavformat    54. 32.100 / 54. 32.100
   libavdevice    54.  3.100 / 54.  3.100
   libavfilter     3. 19.102 /  3. 19.102
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 16.100 /  0. 16.100
   libpostproc    52.  1.100 / 52.  1.100
 Input #0, avi, from 'Output.avi':
   Metadata:
     encoder         : Lavf54.1.100
   Duration: 00:00:06.69, start: 0.000000, bitrate: 199 kb/s
     Stream #0:0: Video: vp8 (VP80 / 0x30385056), yuv420p, 180x256, 30 tbr,
 30 tbn, 30 tbc
     Metadata:
       title           : fanatic animation.avi Video #1
 Output #0, image2, to 'out.png':
   Metadata:
     encoder         : Lavf54.32.100
     Stream #0:0: Video: png, rgb24, 180x256, q=2-31, 200 kb/s, 90k tbn, 30
 tbc
     Metadata:
       title           : fanatic animation.avi Video #1
 Stream mapping:
   Stream #0:0 -> #0:0 (vp8 -> png)
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.03 bitrate=
 0.0kbits/s
 video:66kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.000000%
 }}}
 (out.png looks fine)

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1031#comment:10>
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