[FFmpeg-user] Handling uyvy files has changed.

[Tim Nicholson]

I have a number of test signal files in packed uyvy422 format.

I used to convert these to something more usable with a command line of
the following:-

ffmpeg -pix_fmt uyvy422 -s 1920x1080 -i HD-bars-709.yuv -c:v copy -vtag
2uvy -y ./HD-bars-709.mov
ffmpeg version N-43328-gddac621-by_Tim Copyright (c) 2000-2012 the
FFmpeg developers
  built on Aug  8 2012 09:48:49 with gcc 4.6 (SUSE Linux)
  configuration: --extra-version=by_Tim --enable-static --disable-shared
--enable-gpl --enable-nonfree --enable-version3
--prefix=/mnt/msds-store-0/tim/ffmpeg-tux/usr/local
--libdir=/mnt/msds-store-0/tim/ffmpeg-tux/usr/local/lib64
--samples=../fate-suite/ --enable-runtime-cpudetect
--extra-cflags='-static
-I/mnt/msds-store-0/tim/ffmpeg-tux/usr/local/include'
--extra-ldflags='-static
-L/mnt/msds-store-0/tim/ffmpeg-tux/usr/local/lib64'
--progs-suffix=_Aug-08 --disable-ffserver --enable-libfaac
--enable-libfdk-aac --enable-libx264 --enable-libfreetype --disable-ffplay
  libavutil      51. 67.100 / 51. 67.100
  libavcodec     54. 51.100 / 54. 51.100
  libavformat    54. 22.101 / 54. 22.101
  libavdevice    54.  2.100 / 54.  2.100
  libavfilter     3.  6.100 /  3.  6.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[rawvideo @ 0x1891c40] Estimating duration from bitrate, this may be
inaccurate
Input #0, rawvideo, from 'HD-bars-709.yuv':



  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422,
1920x1080, 25 tbr, 25 tbn, 25 tbc
Output #0, mov, to './HD-bars-709.mov':
  Metadata:
    encoder         : Lavf54.22.101
    Stream #0:0: Video: rawvideo (raw  / 0x20776172), uyvy422,
1920x1080, q=2-31, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help


This worked quite happily for files that when probed show

[...]
encoder         : Lavf54.11.100
  Duration: 00:00:00.04, start: 0.000000, bitrate: 829583 kb/s
    Stream #0:0(eng): Video: rawvideo (2vuy / 0x79757632), uyvy422,
1920x1080, 829440 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc

but with the above build I get:-

encoder         : Lavf54.22.100
  Duration: 00:00:00.04, start: 0.000000, bitrate: 829583 kb/s
    Stream #0:0(eng): Video: rawvideo (raw  / 0x20776172), rgb24,
1920x1080, 829440 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc

and the files are garbage.

Note that ffprobe reports the format as rgb24 whilst ffmpeg says it has
encoded uyvy422!!

Is there some command line change I have missed, or is this a regression?

-- 
Tim