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• FFMPEG Video Capture fails

  20 août 2018, par Ankur Tripathi

  I am trying to capture video using FFmpeg and Directshow(https://github.com/rdp/screen-capture-recorder-to-video-windows-free) filter but it works sometimes and fails some time

  Start FFmpeg

  arguments= -y -rtbufsize 100M -f dshow -framerate 60 -i
  video="screen-capture-recorder":audio="Microphone Array (Realtek
  Audio)" -c:v libx264 -r 60 -preset ultrafast -tune zerolatency -crf 28
  -pix_fmt yuv420p -s 940x576 -c:a aac -strict -2 -ac 2 -b:a 128k "C :\Users\ankur\AppData\Roaming\Take by MangoApps\Recent\Temp\1.mp4"

  Stop FFmpeg

      Call WriteInput("q"); 
  
      public void WriteInput(string input)
  
          {
  
              if (processRunning && process != null && process.StartInfo != 
  
                  null && process.StartInfo.RedirectStandardInput)
  
              {
  
                  process.StandardInput.WriteLine(input);
  
              }
  
          }

  Getting Error

   8/20/2018 6:56:54 PM - ****VIDEO ERROffmpeg version N-84348-gdb7a05d Copyright (c) 2000-2017 the FFmpeg developers
  
            built with gcc 6.3.0 (GCC)
  
            configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  
            libavutil      55. 50.100 / 55. 50.100
  
            libavcodec     57. 83.101 / 57. 83.101
  
            libavformat    57. 66.105 / 57. 66.105
  
            libavdevice    57.  3.100 / 57.  3.100
  
            libavfilter     6. 78.100 /  6. 78.100
  
            libswscale      4.  3.101 /  4.  3.101
  
            libswresample   2.  4.100 /  2.  4.100
  
            libpostproc    54.  2.100 / 54.  2.100
  
          Guessed Channel Layout for Input Stream #0.1 : stereo
  
          Input #0, dshow, from 'video=screen-capture-recorder:audio=Microphone Array (Realtek Audio)':
  
            Duration: N/A, start: 29271.852000, bitrate: N/A
  
              Stream #0:0: Video: rawvideo, bgr0, 940x576, 60 fps, 60 tbr, 10000k tbn, 10000k tbc
  
              Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
  
          Stream mapping:
  
            Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
            Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
  
          Press [q] to stop, [?] for help
  
          [libx264 @ 0000000002553d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
          [libx264 @ 0000000002553d40] profile Constrained Baseline, level 3.2
  
          [libx264 @ 0000000002553d40] 264 - core 148 r2762 90a61ec - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=28.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
          Output #0, mp4, to 'C:\Users\ankur\AppData\Roaming\Take\Recent\Temp\0.mp4':
  
            Metadata:
  
              encoder         : Lavf57.66.105
  
              Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p(progressive), 940x576, q=-1--1, 60 fps, 15360 tbn, 60 tbc
  
              Metadata:
  
                encoder         : Lavc57.83.101 libx264
  
              Side data:
  
                cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
              Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s
  
              Metadata:
  
                encoder         : Lavc57.83.101 aac
  
          frame=   31 fps=0.0 q=27.0 size=     125kB time=00:00:00.50 bitrate=2043.9kbits/s speed=0.991x    
  
          frame=   62 fps= 61 q=20.0 size=     189kB time=00:00:01.01 bitrate=1522.0kbits/s speed=1.01x    
  
          frame=   93 fps= 61 q=22.0 size=     220kB time=00:00:01.53 bitrate=1177.1kbits/s speed=1.01x    
  
          frame=  123 fps= 61 q=20.0 size=     253kB time=00:00:02.03 bitrate=1018.2kbits/s speed=1.01x    
  
          frame=  153 fps= 61 q=20.0 size=     263kB time=00:00:02.53 bitrate= 851.5kbits/s speed=   1x    
  
          frame=  184 fps= 61 q=23.0 size=     273kB time=00:00:03.05 bitrate= 734.0kbits/s speed=1.01x    
  
          frame=  214 fps= 61 q=20.0 size=     323kB time=00:00:03.55 bitrate= 745.4kbits/s speed=   1x    
  
          frame=  244 fps= 60 q=20.0 size=     341kB time=00:00:04.05 bitrate= 689.7kbits/s speed=   1x    
  
          frame=  274 fps= 60 q=22.0 size=     465kB time=00:00:04.55 bitrate= 837.4kbits/s speed=   1x    

• FFMPEG for aws s3 bucket signed url not working in node js

  21 août 2018, par ahmed sharief

  I am trying to create thumbnails from an amazon s3 bucket signed url. I am able to generate thumbnails when i run the command in terminal

  ffmpeg -ss 00:00:02 -i "https://test-s3-bucket.s3.ap-south-1.amazonaws.com/user_gallery_assets/5b6936069ac2bf0602085367/gallery/images/5b7be08527641dee8c1f8134.mp4?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=xxxxxxxxx%2F20180821%2Fap-south-1%2Fs3%2Faws4_request&X-Amz-Date=20180821T095101Z&X-Amz-Expires=900&X-Amz-Signature=d7f81f4eed3d6c87c04dc1b0ad06beeb946afa33d417585f57fad72aeadb3ac0&X-Amz-SignedHeaders=host" -vframes 1 -q:v 2 -f image2 output.jpg

  I am running the above command in terminal and its working fine but when i try to implement the same in node js its showing "no such file or directory error". Though i am encoding the url with double quotes then also its showign same error. Here is my node js code....

  function uploadThumbNailForVideo(obj,url, thumb_url){
  
      return new Promise((resolve, reject) => resolve(url))
  
      .then((url) => awsHelper.getImage(url))
  
      .then((result) => { 
  
  
  
          var resUrl = "\""+result+"\"";
  
  
  
          var args = [ 
  
              '-i', resUrl, 
  
              '-ss', '00:00:02', 
  
              '-vframes', '1', 
  
              '-f','image2', 
  
              'output.jpg'
  
          ]
  
          //console.log(args)
  
          var ffmpeg = require('child_process').spawn('ffmpeg', args);
  
  
  
          ffmpeg.on('error', function (err) {
  
              console.log(err);
  
          });
  
  
  
          ffmpeg.on('close', function (code) {
  
  
  
          });
  
  
  
          ffmpeg.stderr.on('data', function (data) {
  
              var tData = data.toString('utf8');
  
              var a = tData.split('\n');
  
              console.log("A",a); 
  
          });
  
  
  
          ffmpeg.stdout.on('data', function (data) {
  
              //
  
          });
  
  
  
  
  
      });

  }

  and i am getting the following error

  A [ 'ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg 
  
  developers' ]
  
  A [ '',
  
    '  built with Apple LLVM version 9.1.0 (clang-902.0.39.2)',
  
    '  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable- 
  
  shared --enable-pthreads --enable-version3 --enable-hardcoded-tables -- 
  
  enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable- 
  
  gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable- 
  
  opencl --enable-videotoolbox --disable-lzma',
  
     '  libavutil      56. 14.100 / 56. 14.100',
  
     '  libavcodec     58. 18.100 / 58. 18.100',
  
    '  libavformat    58. 12.100 / 58. 12.100',
  
    '  libavdevice    58.  3.100 / 58.  3.100',
  
    '  libavfilter     7. 16.100 /  7. 16.100',
  
    '  libavresample   4.  0.  0 /  4.  0.  0',
  
    '  libswscale      5.  1.100 /  5.  1.100',
  
    '  libswresample   3.  1.100 /  3.  1.100',
  
    '  libpostproc    55.  1.100 / 55.  1.100',
  
    '"https://test-s3-bucket.s3.ap-south-1.amazonaws.com/user_gallery_assets/5b6936069ac2bf0602085367/gallery/images/5b7be08527641dee8c1f8134.mp4?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=xxxxxxxxx%2F20180821%2Fap-south-1%2Fs3%2Faws4_request&X-Amz-Date=20180821T095101Z&X-Amz-Expires=900&X-Amz-Signature=d7f81f4eed3d6c87c04dc1b0ad06beeb946afa33d417585f57fad72aeadb3ac0&X-Amz-SignedHeaders=host": No such file or directory',
  
    '' ]
  
  
  
  ffmpeg exited with code 1

• ffmpeg can't convert mp4 to mp3 Output file #0 does not contain any stream

  21 août 2018, par Golden Fingers

  I can’t convert mp4 file to mp3 via ffmpeg. I tried these commands but they are not working and show the same error :

  Output file #0 does not contain any stream

  These are the commands :

  ffmpeg -i input.mp4 -c copy  -f mpegts output.mp3
  
  
  
  ffmpeg -i input.mp4 -acodec libmp3lame output.mp3
  
  
  
  ffmpeg -i input.mp4 -vn -f mp3 -ab 192k output.mp3
  
  
  
  ffmpeg -i input.mp4 -vn -f wav - | \
  
         lame -V 3 - output.mp3

  Please help me.

  this is log -> ffmpeg -i input.mp4 -c copy -vn output.mp3

  ffmpeg version 2.8.8 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
  
    configuration: --disable-static --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libvpx --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libtheora --enable-libxvid --enable-libfdk_aac --enable-libopus --enable-libfreetype --enable-libfaac
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6avc1mp41
  
      creation_time   : 2018-05-11 00:18:13
  
    Duration: 00:44:01.47, start: 0.000000, bitrate: 61 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 0 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
  
      Metadata:
  
        creation_time   : 2018-05-11 00:18:13
  
        handler_name    : VideoHandler
  
  Output #0, mp3, to 'output.mp3':
  
  Output file #0 does not contain any stream