[issue2049] h264 gamma too high

Alexander Strange added the comment: YUVJ/YUV color issues are contrast, not gamma. FFmpeg issue tracker

[issue2049] h264 gamma too high

Ferric added the comment: I've had the same issue converting yuvj422p(Canon camera) to yuv422p, but I don't think ffmpeg is the issue. IMHO it's probably due to Mplayer (and ?other players) treating yuvj AS yuv. (Mplayer gives a message to this effect). This would cause the yuvj source be displ

[issue2049] h264 gamma too high

Baptiste Coudurier added the comment: On 7/5/10 1:46 AM, horvath.agoston wrote: > > horvath.agoston added the comment: > >> MPlayer does not display JPEG files correctlyi (uses too high contrast), >> whereas FFmpeg probably does handle them right. >> -vo gl:yuv=2:levelconv=2 >> should display t

[issue2049] h264 gamma too high

Carl Eugen Hoyos added the comment: That would bot be a "bug". since x264 does not support 4:2:2 otoh, is the issue reproducible if you only transcode to raw 4:2:0 video? -- status: new -> open substatus: new -> open FFmpeg issue tracker

[issue2049] h264 gamma too high

horvath.agoston added the comment: > MPlayer does not display JPEG files correctlyi (uses too high contrast), > whereas FFmpeg probably does handle them right. > -vo gl:yuv=2:levelconv=2 > should display the JPEGs correctly. But if this was true, how come there is a huge gamma difference betwee

[issue2049] h264 gamma too high

Reimar Döffinger added the comment: On Thu, Jul 01, 2010 at 10:49:56AM +, horvath.agoston wrote: > I've checked, and VLC is also playing back with higher gamma. > Check out attached screenshot. > > On the right side is VLC playing the ffmpeg-encoded MKV file, to the right is > mplayer playi

[issue2049] h264 gamma too high

horvath.agoston added the comment: I've checked, and VLC is also playing back with higher gamma. Check out attached screenshot. On the right side is VLC playing the ffmpeg-encoded MKV file, to the right is mplayer playing the original MJPEG AVI. There's something very very wrong... File 'Scree

[issue2049] h264 gamma too high

horvath.agoston added the comment: But before the output gets buggy, I can see no difference between the original and the encoded version using VLC 1.1.0. But what is the reason for this? When I've encoded h264 using mencoder, there was no such problem at all, and the resulting h264 worked well

[issue2049] h264 gamma too high

horvath.agoston added the comment: I tried VLC 1.1.0, but that produces a buggy output on the .MKV produced by ffmpeg. Uh-oh, can of worms. :) FFmpeg issue tracker

[issue2049] h264 gamma too high

Baptiste Coudurier added the comment: On 6/29/10 4:15 AM, horvath.agoston wrote: > > New submission from horvath.agoston: > > I was trying to encode the mjpeg my Canon G7 produces into h264 using > > x264 0.100.1659 (git57b2e56) > ffmpeg SVN r23844 > > But all the h264's come out with a gamma to

[issue2049] h264 gamma too high

New submission from horvath.agoston : I was trying to encode the mjpeg my Canon G7 produces into h264 using x264 0.100.1659 (git57b2e56) ffmpeg SVN r23844 But all the h264's come out with a gamma too high. I was using mplayer SVN r31581 to decode, and started playing BOTH the original and the