I’m trying to use ffplay with a network stream from netcat. It’s raw h.264,
1280x720, 30fps.
When I play it with ffplay, there is about 10 seconds latency over the LAN. Is
there any way to reduce this? I’ve tried -probesize 32 and —fflags nobuffer.
I notice it plays at 25fps, so maybe that’s part of the problem. I can’t
figure out how to force the rate to 30.
$ nc 192.168.3.3 8080 | ffplay -i pipe:0 -x 1280 -y 720 -probesize 32
ffplay version 3.4.git Copyright (c) 2003-2018 the FFmpeg developers
built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
configuration: --prefix=/opt/local --enable-swscale --enable-avfilter
--enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus
--enable-librsvg --enable-libtheora --enable-libopenjpeg --enable-libmodplug
--enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass
--enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig
--enable-libfreetype --enable-libfribidi --disable-libjack
--disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb
--disable-libxcb-shm --disable-libxcb-xfixes --disable-indev=jack
--enable-opencl --disable-outdev=xv --enable-audiotoolbox --enable-videotoolbox
--enable-sdl2 --mandir=/opt/local/share/man --enable-shared --enable-pthreads
--cc=/usr/bin/clang --arch=x86_64 --enable-x86asm --enable-libx265 --enable-gpl
--enable-postproc --enable-libx264 --enable-libxvid --enable-nonfree
--enable-libfdk-aac
libavutil 56. 18.102 / 56. 18.102
libavcodec 58. 19.102 / 58. 19.102
libavformat 58. 16.100 / 58. 16.100
libavdevice 58. 4.100 / 58. 4.100
libavfilter 7. 24.100 / 7. 24.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
[h264 @ 0x7f807b023200] non-existing PPS 0 referenced
Last message repeated 1 times
[h264 @ 0x7f807b023200] decode_slice_header error
[h264 @ 0x7f807b023200] no frame!
[h264 @ 0x7f807a049000] Stream #0: not enough frames to estimate rate; consider
increasing probesize
[h264 @ 0x7f807a049000] decoding for stream 0 failed
[h264 @ 0x7f807a049000] Could not find codec parameters for stream 0 (Video:
h264, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, h264, from 'pipe:0':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: h264, none, 25 tbr, 1200k tbn, 50 tbc
[NULL @ 0x7f807b023200] non-existing PPS 0 referenced
Last message repeated 5 times
[h264 @ 0x7f807d804000] non-existing PPS 0 referenced
[NULL @ 0x7f807b023200] non-existing PPS 0 referenced
[h264 @ 0x7f807d804000] decode_slice_header error
[h264 @ 0x7f807d804000] no frame!
[NULL @ 0x7f807b023200] non-existing PPS 0 referenced
Last message repeated 10 times
nan M-V: nan fd= 0 aq= 0KB vq= 119KB sq= 0B f=0/0
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
