[FFmpeg-trac] #2214(avcodec:closed): h264 output video stream with yuv444p

FFmpeg trac at avcodec.org
Thu Mar 14 14:52:12 CET 2013

#2214: h264 output video stream with yuv444p
             Reporter:  burek        |                    Owner:
                 Type:  enhancement  |                   Status:  closed
             Priority:  wish         |                Component:  avcodec
              Version:  unspecified  |               Resolution:  wontfix
             Keywords:  libx264      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by burek):

 As discussed on #ffmpeg-devel irc channel, I would suggest that at least a
 hint message is produced when the pixel format is unspecified at command
 line and it is not yuv420p in the source file.

 A hint/warning message can be any kind of a custom message that notifies
 the user that his video might not be playable on some media players, due
 to this issue.

 Since I'm required to suggest a hint message and am not quite familiar
 with correct terms, I'll just suggest a simple message like:

 ''"Warning: You didn't specify '-pix_fmt yuv420p' option, so the same
 pixel format from your input will be used. Your video might have issues
 when played back on some media players since they mostly use 'yuv420p'
 pixel format with h264 videos."''

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2214#comment:3>
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