Re: [FFmpeg-user] ProRes - MPEG2 bug: color shifting?
Just to correct some things, Edius is right in ProRes interpretation if the source footage is correctly encoded in YUV2 at correct levels. Edius does wrong interpretation only when ProRes is encoded at full range in YUV2 color space. Quicktime colorshift can be seen in QT Player Window. NLE vendors are using QT API and there is no color shift if they are using the API parameters properly. Andreas Am 15.08.2015 17:48 schrieb linxs lin...@gmail.com: Thank you for you repy! There is a horrible bug in Quicktime that causes gamma shifts -- Can you tell more detail? Thanks! 2015-08-13 19:17 GMT+08:00 Bouke (VideoToolShed) bo...@videotoolshed.com : Original Message - From: linxs lin...@gmail.com To: FFmpeg user questions ffmpeg-user@ffmpeg.org Sent: Thursday, August 13, 2015 7:21 AM Subject: [FFmpeg-user] ProRes - MPEG2 bug: color shifting? Hi, I need helps for color shifting. Is it bug? or I am wrong with the usage? I get a .mov file and its video format is ProRes 422, 24 fps, 1920x1080, BT.709. I put the MOV file in this mail as attachment proress_hq.mov, and only one frame in this MOV. Using ffmpeg to convert it to MPEG-2: ffmpeg -i proress_hq.mov -c:v mpeg2video -b:v 30M -pix_fmt yuv420p my.m2v I compared them by previewing proress_hq.mov and my.m2v in Edius and I found there is a little color difference: proress_hq.mov seems to be a small little brighter than my.m2v and the color in my.m2v seems to be a little more saturate. AFAIK, Edius uses Quicktime to decode. There is a horrible bug in Quicktime that causes gamma shifts. What you could try is to convert both your outputs to testfiles, both using the same codec/format. Then compare those two. If they are alike, it's Edius that messes up things. hth, Bouke How can i convert this mov to mpeg2 without color shifting? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] ProRes - MPEG2 bug: color shifting?
Thank you for you repy! There is a horrible bug in Quicktime that causes gamma shifts -- Can you tell more detail? Thanks! 2015-08-13 19:17 GMT+08:00 Bouke (VideoToolShed) bo...@videotoolshed.com: Original Message - From: linxs lin...@gmail.com To: FFmpeg user questions ffmpeg-user@ffmpeg.org Sent: Thursday, August 13, 2015 7:21 AM Subject: [FFmpeg-user] ProRes - MPEG2 bug: color shifting? Hi, I need helps for color shifting. Is it bug? or I am wrong with the usage? I get a .mov file and its video format is ProRes 422, 24 fps, 1920x1080, BT.709. I put the MOV file in this mail as attachment proress_hq.mov, and only one frame in this MOV. Using ffmpeg to convert it to MPEG-2: ffmpeg -i proress_hq.mov -c:v mpeg2video -b:v 30M -pix_fmt yuv420p my.m2v I compared them by previewing proress_hq.mov and my.m2v in Edius and I found there is a little color difference: proress_hq.mov seems to be a small little brighter than my.m2v and the color in my.m2v seems to be a little more saturate. AFAIK, Edius uses Quicktime to decode. There is a horrible bug in Quicktime that causes gamma shifts. What you could try is to convert both your outputs to testfiles, both using the same codec/format. Then compare those two. If they are alike, it's Edius that messes up things. hth, Bouke How can i convert this mov to mpeg2 without color shifting? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] ProRes - MPEG2 bug: color shifting?
Original Message - From: linxs lin...@gmail.com To: FFmpeg user questions ffmpeg-user@ffmpeg.org Sent: Thursday, August 13, 2015 7:21 AM Subject: [FFmpeg-user] ProRes - MPEG2 bug: color shifting? Hi, I need helps for color shifting. Is it bug? or I am wrong with the usage? I get a .mov file and its video format is ProRes 422, 24 fps, 1920x1080, BT.709. I put the MOV file in this mail as attachment proress_hq.mov, and only one frame in this MOV. Using ffmpeg to convert it to MPEG-2: ffmpeg -i proress_hq.mov -c:v mpeg2video -b:v 30M -pix_fmt yuv420p my.m2v I compared them by previewing proress_hq.mov and my.m2v in Edius and I found there is a little color difference: proress_hq.mov seems to be a small little brighter than my.m2v and the color in my.m2v seems to be a little more saturate. AFAIK, Edius uses Quicktime to decode. There is a horrible bug in Quicktime that causes gamma shifts. What you could try is to convert both your outputs to testfiles, both using the same codec/format. Then compare those two. If they are alike, it's Edius that messes up things. hth, Bouke How can i convert this mov to mpeg2 without color shifting? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] ProRes - MPEG2 bug: color shifting?
Hi, I need helps for color shifting. Is it bug? or I am wrong with the usage? I get a .mov file and its video format is ProRes 422, 24 fps, 1920x1080, BT.709. I put the MOV file in this mail as attachment proress_hq.mov, and only one frame in this MOV. Using ffmpeg to convert it to MPEG-2: ffmpeg -i proress_hq.mov -c:v mpeg2video -b:v 30M -pix_fmt yuv420p my.m2v I compared them by previewing proress_hq.mov and my.m2v in Edius and I found there is a little color difference: proress_hq.mov seems to be a small little brighter than my.m2v and the color in my.m2v seems to be a little more saturate. How can i convert this mov to mpeg2 without color shifting? Thank you! 附件区域 预览附件“proress_hq.mov” ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
