Sur d’autres sites (3538)

• FFMPEG shows bitrate=N/A and doesn't send anything

  20 mai 2019, par Mehul Jain

  I am trying to relay an stream from one rtsp url to another without recoding using this command :

  ffmpeg
 -rtsp_transport tcp
 -fflags nobuffer
 -re
 -i rtsp://xxx.xxx.xxx.xxx:554/[stream_name]
 -vcodec copy
 -an
 -f rtsp rtsp://yyy.yyy.yyy.yyy/[new_stream_name]

  But FFMPEG doesn’t stream anything and stats shows bitrate=N/A

  This is the exact output that i get :

  ffmpeg version 4.1.3-static https://johnvansickle.com/ffmpeg/    Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libxml2 --enable-libxvid --enable-libzimg
 libavutil      56. 22.100 / 56. 22.100
 libavcodec     58. 35.100 / 58. 35.100
 libavformat    58. 20.100 / 58. 20.100
 libavdevice    58.  5.100 / 58.  5.100
 libavfilter     7. 40.101 /  7. 40.101
 libswscale      5.  3.100 /  5.  3.100
 libswresample   3.  3.100 /  3.  3.100
 libpostproc    55.  3.100 / 55.  3.100
Input #0, rtsp, from
'rtsp://xxx.xxx.xxx.xxx:554/[stream_name]':
 Metadata:
   title           : RTSP Session
 Duration: N/A, start: 0.318111, bitrate: N/A
   Stream #0:0: Video: h264 (High), yuv420p(progressive), 944x1080, 22 fps, 22 tbr, 90k tbn, 180k tbc
Output #0, rtsp, to
'rtsp://yyy.yyy.yyy.yyy/[new_stream_name]':
 Metadata:
   title           : RTSP Session
   encoder         : Lavf58.20.100
   Stream #0:0: Video: h264 (High), yuv420p(progressive), 944x1080, q=2-31, 22 fps, 22 tbr, 90k tbn, 90k tbc
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help

  frame=  113 fps= 32 q=-1.0 Lsize=N/A time=00:00:06.77 bitrate=N/A speed=1.92x

  Although when i change output stream container to ’flv’ and protocol to ’rtmp’ it works.

  Any help will be appreciated.

• Nginx rtmp exec command not working in macOS

  8 janvier 2020, par Josh

  The nginx rtmp exec command not working on my macOS.
  I checked the error log file and saw this error.

  2019/05/19 19:45:24 [alert] 32986#0: kevent() error on 13 filter:-1 flags:4002 (2: No such file or directory)

  I have no idea what is that mean and i searched so much about it and i didn’t find anything.

  Config file

  rtmp {
  
  
  
      server {
  
  
  
          listen 8080;
  
          chunk_size 4096;
  
  
  
          application publish {
  
  
  
              live on;
  
              record off;
  
  
  
              allow publish all;
  
              allow play all;
  
  
  
              exec echo "" > /test.txt;
  
  
  
              # I even test that command with bash file 
  
              exec /Users/josh/Projects/server/test.sh;
  
          }
  
  
  
          application hls {
  
  
  
              live on;
  
              record off;
  
  
  
              hls on;
  
              hls_path /usr/local/nginx/html/live;
  
              hls_fragment 15s;
  
          }
  
      }
  
  
  
  }

• FFMpeg - can't manage to create DnxHR files in Rec2020 / 4:4:4 Chroma sampling

  20 mai 2019, par Shouille

  I’m trying to convert an image sequence into a Quicktime DnxHR with 4:4:4 sampling in Rec2020 colorspace using FFMpeg 4.1.3. But I’m always ending with 4:2:0 Rec709 file.

  In my lastest attempt FFMpeg seems to de the right thing :

  ffmpeg.exe -y -i "C:/TEST/final-%04d.dpx" -c:v dnxhd -vf "scale=3840:2160,fps=24,format=yuv444p12le" -profile:v dnxhr_444 -color_primaries 9 -colorspace 9 -color_range 2 C:/TEST/test.mov

  During encoding the output stream is shown as 444 / bt2020

  Output #0, mov, to 'C:/TEST/test.mov':
  
    Metadata:
  
    encoder         : Lavf58.20.100
  
    Stream #0:0: Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le(pc, bt2020nc/bt2020/unknown), 3840x2160, q=2-1024, 200 kb/s, 24 fps, 12288 tbn, 24 tbc
  
    Metadata:
  
      encoder         : Lavc58.35.100 dnxhd
  
    frame=   10 fps=3.3 q=1.0 Lsize=   71161kB time=00:00:00.37 
  
    bitrate=1554195.5kbits/s speed=0.122x
  
    video:71160kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001114%

  But when I inspect the output file FFMpeg says it’s in bt709

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/TEST/test.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 512
  
      compatible_brands: qt
  
      encoder         : Lavf58.20.100
  
    Duration: 00:00:00.42, start: 0.000000, bitrate: 1397959 kb/s
  
      Stream #0:0(eng): Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), 
  
  yuv444p10le(pc, bt709/unknown/unknown), 3840x2160, 1399062 kb/s, 24 fps, 24 tbr, 12288 tbn, 12288 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc58.35.100 dnxhd

  And softwares like MediaInfo say the chroma sampling is in 4.2.0

  Any ideas ?

  As ask in the comment, the full log of the conversion :

  C:\Users\pierrech>ffmpeg.exe -y -i "C:/TEST/final-%04d.dpx" -c:v dnxhd -vf colorspace=all=bt2020:iall=bt2020 -profile:v dnxhr_444 -color_primaries bt2020 -colorspace bt2020_ncl -color_range 2 -color_trc bt2020_12bit C:/TEST/test.mov
  
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 8.3.1 (GCC) 20190414
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, image2, from 'C:/TEST/final-%04d.dpx':
  
    Duration: 00:00:00.40, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: dpx, rgb48le, 3840x2160, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (dpx (native) -> dnxhd (native))
  
  Press [q] to stop, [?] for help
  
  Output #0, mov, to 'C:/TEST/test.mov':
  
    Metadata:
  
      encoder         : Lavf58.20.100
  
      Stream #0:0: Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le(pc, bt2020nc/bt2020/bt2020-12), 3840x2160, q=2-1024, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc58.35.100 dnxhd
  
  frame=   10 fps=3.8 q=1.0 Lsize=   71161kB time=00:00:00.36 bitrate=1618952.6kbits/s speed=0.136x
  
  video:71160kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001114%

  And after the conversion

  C:\Users\pierrech>ffmpeg.exe  -i C:\TEST\test.mov -hide_banner
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\TEST\test.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 512
  
      compatible_brands: qt
  
      encoder         : Lavf58.20.100
  
    Duration: 00:00:00.40, start: 0.000000, bitrate: 1457373 kb/s
  
      Stream #0:0(eng): Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le(pc, bt709/unknown/unknown), 3840x2160, 1457356 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc58.35.100 dnxhd
  
  At least one output file must be specified