On Sun, 3 Nov 2024 at 21:32, Oliver Fromme <oli...@fromme.com> wrote: > > Clément Péron wrote: > > On Sun, 3 Nov 2024 at 14:32, Oliver Fromme <oli...@fromme.com> wrote: > > > Clément Péron wrote: > > > > [...] > > > > Adding the "-flags +low_delay" will give you > > > > muxer <- pts:47 pts_time:5.222222 dts:47 dts_time:5.222222 duration:1 > > > > duration_time:0.111111 size:24883254 latency(total:104.805ms, decode > > > > 96.373ms/91%) > > > > > > You might also try "-tune zerolatency". > > > > [in#0/rtsp @ 0x556fb8629740] Codec AVOption tune (Set the encoding > > tuning info) is not a decoding option. > > Error opening input file > rtsp://root:XXX@10.98.5.107:554/axis-media/media.amp. > > > > Seems this is only for the nvenc, but thanks for your suggestion > > Maybe I've been mistaken, but from you command line it appeared > to me that you were using libx264 for encoding. In that case, > "-tune zerolatency" is a short-cut for several encoding options. > Among other things, it disables B-frames and various other > algorithms that require looking ahead at future frames, and it > enables sliced threading (which is less efficient than the > default of frame-based threading, but causes less delay). > > If you don't use libx264 for encoding, then ignore what I wrote. :-)
Sorry my first message was imprecise, I got the H264 RTSP stream from a camera. I'm only interested in decoding video, frame by frame, as quickly as possible. My final result is a total E2E of 300-450ms where between 50-200ms are from FFMpeg decoding. Strange is that the Cuvid decoding has a high jitter from 40ms to 190ms. Maybe I will investigate this part. Regards, Clement > > Best regards > -- Oliver > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
