Hello So, I believe I will have to revert to version 3.3.2
Can we force the filter to speed up? I observe that the remap filter is just using one core to 100% and all the other cores are free. I tried 'threads 16' and 'filter_complex_threads 16' Options but it did not make any difference. Thank you. Best regards, Shaji Baig Sent from my iPhone > On 24 Aug 2018, at 16:48, Paul B Mahol <[email protected]> wrote: > >> On 8/24/18, Shaji <[email protected]> wrote: >> Hello, >> >> I am using the latest ffmpeg version. I am facing the same issue as >> discussed in the thread: >> >> https://ffmpeg.org/pipermail/ffmpeg-user/2017-November/037971.html >> >> That is remapping produce black and white output. If I use the workaround of >> using the format conversion then the processing slows down very drastically. >> >> One more thing to add is if I use yuv444p then the output is encoded >> coloured. >> >> Command producing black and white: >> >> Fps: 29 >> >> ffmpeg -y -stream_loop -1 -i silence.mp3 -r 30 -i >> rtmp://172.104.245.86/live/test -i sample2160_x.pgm -i sample2160_y.pgm >> -lavfi "remap" -vcodec h264_nvenc -pix_fmt yuv420p -b:v 10000k -f flv >> rtmp:xxxx >> >> Command producing colored output: >> >> Fps: 20 >> >> ffmpeg -y -stream_loop -1 -i silence.mp3 -r 30 -i >> rtmp://172.104.245.86/live/test -i sample2160_x.pgm -i sample2160_y.pgm >> -lavfi "remap" -vcodec h264_nvenc -pix_fmt yuv444p -b:v 10000k -f flv >> rtmp:xxxx >> >> Fps: 12 >> >> ffmpeg -y -stream_loop -1 -i silence.mp3 -r 30 -i >> rtmp://172.104.245.86/live/test -i sample2160_x.pgm -i sample2160_y.pgm >> -lavfi " format=pix_fmts=rgb24,remap" -vcodec h264_nvenc -pix_fmt yuv420p >> -b:v 10000k -f flv rtmp:xxxxx >> >> Another interesting observation is that if I use ffmpeg version 3.3.2 then >> below mentioned command gives >> 20 fps with colored output >> >> ffmpeg -y -stream_loop -1 -i silence.mp3 -r 30 -i >> rtmp://172.104.245.86/live/test -i sample2160_x.pgm -i sample2160_y.pgm >> -lavfi "remap" -vcodec h264_nvenc -pix_fmt yuv420p -b:v 10000k -f flv >> rtmp:xxxx >> >> >> Can you please tell me if this bug can be rectified as we want to achieve >> colored 29fps with this setup. > > Nope, as non-colored uses less data for processing. > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
