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I think x264 only support yuv420p colorspace for now.<br><br>> From: x264-devel-request@videolan.org<br>> Subject: x264-devel Digest, Vol 47, Issue 11<br>> To: x264-devel@videolan.org<br>> Date: Mon, 18 Apr 2011 12:00:04 +0200<br>> <br>> Send x264-devel mailing list submissions to<br>> x264-devel@videolan.org<br>> <br>> To subscribe or unsubscribe via the World Wide Web, visit<br>> http://mailman.videolan.org/listinfo/x264-devel<br>> or, via email, send a message with subject or body 'help' to<br>> x264-devel-request@videolan.org<br>> <br>> You can reach the person managing the list at<br>> x264-devel-owner@videolan.org<br>> <br>> When replying, please edit your Subject line so it is more specific<br>> than "Re: Contents of x264-devel digest..."<br>> <br>> <br>> Today's Topics:<br>> <br>> 1. yuvj420p colorspace (Aurius Bendikas)<br>> <br>> <br>> ----------------------------------------------------------------------<br>> <br>> Message: 1<br>> Date: Sat, 16 Apr 2011 18:47:50 +0300<br>> From: Aurius Bendikas <aurius.bendikas@gmail.com><br>> To: x264-devel@videolan.org<br>> Subject: [x264-devel] yuvj420p colorspace<br>> Message-ID: <BANLkTim1M9xHhDiZEpe3k9gSAfE8p3feuw@mail.gmail.com><br>> Content-Type: text/plain; charset=UTF-8<br>> <br>> Hello x264 developers,<br>> <br>> I have a little problem and I hope you could help me. I have a Canon<br>> 600D photo camera witch produces *.mov video files encoded in H264,<br>> but uses quite unusual colorspace - yuvj420p. The video bitrate is<br>> around 46 Mbps, witch is too muctch for my video player to handle, so<br>> I need to reencode it to 20 Mbps and also make it High@4.1 compatible<br>> to be able to play it on my big screen.<br>> <br>> So the problem is when I reencode with x264 I got a warning message:<br>> <br>> bash#:x264 --pass 1 --bitrate 20000 --profile high --preset veryslow<br>> --level 4.1 --vf crop:0,0,0,8 -o MVI_0108.264 MVI_0108.MOV<br>> lavf [info]: 1920x1088p 0:1 @ 30000/1001 fps (vfr)<br>> resize [warning]: converting from yuvj420p to yuv420p<br>> ....<br>> <br>> When I compare original video with reencoded video, the reencoded<br>> video looks very flat (much brighter and less contrast).<br>> <br>> When I reencode with ffmpeg, no colorspce convertion is done, and the<br>> video looks exactly the same as original.<br>> <br>> So my question is can I encode in yuvj420p with x264 encoder? Is this<br>> supported? Is it planned to be supported?<br>> <br>> I am used to x264 encoder, and it is muctch better docummented than<br>> ffmpeg. I would like to use it in my workflows in the future.<br>> <br>> Respectfully,<br>> Aurius Bendikas<br>> <br>> <br>> ------------------------------<br>> <br>> _______________________________________________<br>> x264-devel mailing list<br>> x264-devel@videolan.org<br>> http://mailman.videolan.org/listinfo/x264-devel<br>> <br>> <br>> End of x264-devel Digest, Vol 47, Issue 11<br>> ******************************************<br> </body>
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