Kevin Wells <kevwells <at> hotmail.co.uk> writes: > what platform are you using, Windows, Mac?
I suggest one more guess. (But it doesn't matter: FFmpeg runs fine on Windows and Mac, I test regularly myself.) > In any application if you open the video and turn the > gamma up you will see big problems. FFmpeg does contain filter(s) that allow gamma correction, how do I reproduce with FFmpeg? > If you open the resulting video (SD_BARS.mov) up in > Photoshop Sorry, but Photoshop is not a development tool I use either. > ffmpeg -i HD_BARS.mov -map 0:v > -vf colormatrix=bt709:bt601,scale=720:576:flags=lanczos > -vcodec prores_ks -profile:v 3 -vtag apch -vendor ap10 > -pix_fmt yuv422p10le -f mov SD_BARS.mov I already told you that if the issue is reproducible with -vcodec prores (you claimed it is), please use it. Is encoding with prores needed to reproduce the issue, or are only seeing a problem with the software scaler? Why didn't you use the command line I provided and that is not bound to some software we don't know much about to check the output of FFmpeg? Please try to fix your mailer, Carl Eugen _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
