[FFmpeg-trac] #2407(swscale:new): Conversion from yuv to RGB leads to broken gradients and colors.

[FFmpeg]

#2407: Conversion from yuv to RGB leads to broken gradients and colors.
------------------------------------+-----------------------------------
             Reporter:  sun         |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  swscale
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+-----------------------------------

Comment (by sun):

 I tried it and it works. The resulting image is clean!

 {{{
 sun at shine
 /media/dd624e38-4f22-471f-b835-5d0958a4fbf0/Tests/101TEST_/Schaerfe $
 ffmpeg -i ffv1.avi -sws_flags +full_chroma_int -vf format=rgb24 rgb.png
 ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
   built on Mar 25 2013 21:47:38 with gcc 4.7 (Ubuntu/Linaro
 4.7.2-2ubuntu1)
   configuration: --enable-gpl --enable-libass --enable-libfaac --enable-
 libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-
 libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora
 --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264
 --enable-nonfree --enable-version3 --enable-frei0r --enable-shared
   libavutil      52. 18.100 / 52. 18.100
   libavcodec     54. 92.100 / 54. 92.100
   libavformat    54. 63.104 / 54. 63.104
   libavdevice    54.  3.103 / 54.  3.103
   libavfilter     3. 42.103 /  3. 42.103
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 [avi @ 0x25fe380] non-interleaved AVI
 Input #0, avi, from 'ffv1.avi':
   Metadata:
     encoder         : Lavf54.63.104
   Duration: 00:00:00.04, start: 0.000000, bitrate: 223622 kb/s
     Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p10le, 1920x1080,
 25 tbr, 25 tbn, 25 tbc
     Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16p,
 128 kb/s
 File 'rgb.png' already exists. Overwrite ? [y/N] y
 Output #0, image2, to 'rgb.png':
   Metadata:
     encoder         : Lavf54.63.104
     Stream #0:0: Video: png, rgb24, 1920x1080, q=2-31, 200 kb/s, 90k tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (ffv1 -> png)
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
 video:2708kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.000793%

 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2407#comment:10>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker