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• Concatenating two videos with different width and height

  7 mai 2018, par Tahtakafa

  If i try to concatenate two videos it throws an error due to different screen sizes of the videos. I have put a setdat=16/9 parameter like described here for each two video. Then i got the error below. How can i concatenate two videos with different screen sizes ?

  code :

  ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4

  error :

  pi@raspberrypi:/var/www/html/GetVideo $ ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4
  
  ffmpeg version git-2018-05-06-652b857 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
    libavutil      56. 18.100 / 56. 18.100
  
    libavcodec     58. 19.101 / 58. 19.101
  
    libavformat    58. 13.101 / 58. 13.101
  
    libavdevice    58.  4.100 / 58.  4.100
  
    libavfilter     7. 21.100 /  7. 21.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
    libpostproc    55.  2.100 / 55.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/reklam/muzikli1.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
    Duration: 00:00:13.35, start: 0.000000, bitrate: 244 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 918x512 [SAR 1:1 DAR 459:256], 110 kb/s, 5 fps, 5 tbr, 5k tbn, 10k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : AVC Coding
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 129 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/tempvideo/sample.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.65.100
  
    Duration: 00:00:25.57, start: 0.000000, bitrate: 1015 kb/s
  
      Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 896 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 113 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  [AVFilterGraph @ 0x2fa9a20] No such filter: ' '
  
  Error initializing complex filters.
  
  Invalid argument

• FFMPEG : Impossible to convert between the formats supported by the filter

  30 avril 2018, par Netheme

  Trying to decode & encode the video in FFMPEG on my GPU. Using this command :

  ffmpeg -y -c:v mpeg2_cuvid -vsync 0 -deint 2 -drop_second_field 1 -surfaces 10 -i 'udp://@227.10.20.149:1234?fifo_size=100000000'  -map i:0x12c -r 25 -filter fps=30,scale_npp=640:360:format=same:interp_algo=lanczos -aspect 16:9 -g 96 -vcodec h264_nvenc -b 400K -minrate 400k -maxrate 400k -f mpegts 'udp://@239.0.0.12:1000?overrun_nonfatal_option=1'

  But FFMPEG still giving me this output :

    Using -vsync 0 and -r can produce invalid output files
  
    Stream mapping:
  
    Stream #0:8 -> #0:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:8 -> #1:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:8 -> #2:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:8 -> #3:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:9 -> #4:0 (mp2 (native) -> aac (native))
  
    Stream #0:10 -> #5:0 (mp2 (native) -> aac (native))
  
    Press [q] to stop, [?] for help
  
    [mpegts @ 0x55c260173b20] frame size not set
  
    Output #5, mpegts, to 'udp://@239.0.0.12:1005?overrun_nonfatal_option=1':
  
    Metadata:
  
      encoder         : Lavf57.83.100
  
      Stream #5:0(eng): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc57.107.100 aac
  
  [mpegts @ 0x55c260172560] frame size not set
  
  Output #4, mpegts, to 'udp://@239.0.0.12:1004?overrun_nonfatal_option=1':
  
    Metadata:
  
      encoder         : Lavf57.83.100
  
      Stream #4:0(por): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc57.107.100 aac
  
  Impossible to convert between the formats supported by the filter 'Parsed_fps_0' and the filter 'auto_scaler_0'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Function not implemented
  
  Error while processing the decoded data for stream #0:8
  
  [aac @ 0x55c260173020] Qavg: 347.777
  
  [aac @ 0x55c260173020] 2 frames left in the queue on closing
  
  [aac @ 0x55c260174ac0] Qavg: 339.059
  
  [aac @ 0x55c260174ac0] 2 frames left in the queue on closing
  
  Conversion failed!

  My version of FFMPEG :

  ffmpeg version n3.4.2-9-ga877ab75eb Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
    configuration: --enable-libzvbi --enable-libnpp --enable-cuda --enable-cuvid --enable-nvenc --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --enable-gpl --enable-libx264 --disable-x86asm --enable-libx265 --enable-libfdk-aac --enable-nonfree
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
  
  
  
  Use -h to get full help or, even better, run 'man ffmpeg'

  I tried to change the output codec to hevc_nvenc, nvenc_hevc (all available from Nvidia), but still getting this error. What I am doing wrong ?
  Thanks for tips.

• ffmpeg can't work via nginx + nginx-rtmp-module

  2 mai 2018, par Ubunkun

  nginx version : nginx/1.12.2
  ffmpeg version 3.4.2

  I’m trying to below.
  -> nginx -> ffmpeg multi encode -> HLS publish

  nginx configration is below (nginx.conf)

  worker_processes  1;
  
  
  
  events {
  
      worker_connections  1024;
  
  }
  
  
  
  http {
  
      include       mime.types;
  
      default_type  application/octet-stream;
  
  
  
      sendfile        on;
  
  
  
      keepalive_timeout  65;
  
  
  
      server {
  
          listen       80;
  
          server_name  localhost;
  
  
  
          location / {
  
              root   html;
  
              index  index.html index.htm index.php;
  
          }
  
  
  
      location ~ \.php$ {
  
              root           html;
  
              fastcgi_pass   unix:/var/run/php-fpm/php-fpm.sock;
  
              fastcgi_index  index.php;
  
              fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
  
              include        fastcgi_params;
  
          }
  
  
  
          error_page   500 502 503 504  /50x.html;
  
          location = /50x.html {
  
              root   html;
  
          }
  
      }
  
  }
  
  
  
  rtmp {
  
      server {
  
          listen 1935;
  
          application hls {
  
              live on;
  
              exec /usr/local/sbin/ffscript.sh $name;
  
          }
  
  
  
          application hls2 {
  
              live on;
  
              hls on;
  
              hls_path /usr/local/nginx/html;
  
              hls_nested on;
  
              hls_fragment 9s;
  
              hls_variant _low  BANDWIDTH=300000;
  
              hls_variant _mid  BANDWIDTH=700000;
  
              hls_variant _high BANDWIDTH=1200000;
  
          }
  
      }
  
  }

  (/usr/local/sbin/ffscript.sh)

  export LIBVA_DRIVERS_PATH=/opt/intel/mediasdk/lib64
  
  export LIBVA_DRIVER_NAME=iHD
  
  export MFX_HOME=/opt/intel/mediasdk
  
  export PKG_CONFIG_PATH=/opt/intel/opencl:
  
  
  
  /usr/local/bin/ffmpeg -i rtmp://localhost/hls/${1} -vcodec h264_qsv -init_hw
  
  _device qsv:hw -b:v 128K -c:a aac -ar 44100 -ac 2 -r 30 -f flv rtmp://localhost/
  
  hls2/${1}_low -b:v 512k -c:a aac -ar 44100 -ac 2 -r 30 -f flv rtmp://localhost/h
  
  ls2/${1}_mid -b:v 1024k -c:a aac -ar 44100 -ac 2 -r 30 -f flv rtmp://localhost/h
  
  ls2/${1}_high

  But it can’t work. The access.log appears just one line.

  192.168.1.121 [02/May/2018:21:52:39 +0900] PUBLISH "hls" "test2" "" - 580840 753 "" "FMLE/3.0 (compatible; Lavf57.55" (21s)

  There is no "hls2" PUBLISH on access log.

  When I tried to run the ffmpeg command line while nginx is running, it was succeed.

  Why ffmpeg called by nginx doesn’t work ? If you have any solution, let me know.

  Bests,