[FFmpeg-trac] #6088(avcodec:new): h264 decoder produces deprecated pixel format

[FFmpeg]

#6088: h264 decoder produces deprecated pixel format
---------------------------------+---------------------------------------
             Reporter:  rosik    |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  unspecified
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+---------------------------------------
 Summary of the bug:

 ffplay and other ffmepg tools show the warning if dealing with h264 with
 `video_full_range_flag = 1` in vui:
 {{{
 [swscaler @ 0x7f6874063560] deprecated pixel format used, make sure you
 did set range correctly
 }}}


 How to reproduce:
 {{{
 % ffmpeg -v warning  -f lavfi -i 'testsrc' -pix_fmt yuv420p -color_range
 jpeg -t 60 -y out.h264
 % ffplay out.h264
 ffplay version 3.1.6 Copyright (c) 2003-2016 the FFmpeg developers
   built with gcc 4.6.3 (GCC)
   configuration: --disable-static --prefix=/nix/store
 /z2lchw409b06gc7k9gkjraxc50j9ifdd-ffmpeg-3.1.6.9 --enable-shared --enable-
 pic --enable-nonfree --enable-gpl --enable-doc --disable-static --disable-
 runtime-cpudetect --disable-stripping --enable-libx264 --enable-libx265
 --enable-libfreetype --enable-libv4l2 --enable-libfaac --enable-avresample
 --enable-postproc --enable-swscale
   libavutil      55. 28.100 / 55. 28.100
   libavcodec     57. 48.101 / 57. 48.101
   libavformat    57. 41.100 / 57. 41.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 47.100 /  6. 47.100
   libavresample   3.  0.  0 /  3.  0.  0
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, h264, from 'out.h264':  0KB sq=    0B f=0/0
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: h264 (High), yuvj420p(pc), 320x240 [SAR 1:1 DAR
 4:3], 25 fps, 25 tbr, 1200k tbn, 50 tbc
 [swscaler @ 0x7f6874063560] deprecated pixel format used, make sure you
 did set range correctly
 }}}

 It can be fixed in `libavcodec/h264_slice.c` - `get_pixel_format(...)`,
 but I am not sure if such a fix is appropriate

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6088>
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