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• configure : Move newlib libc check before mingw libc check

  31 janvier 2013, par Diego Biurrun

  configure : Move newlib libc check before mingw libc check

• ffmpeg video rendering command adding empty audio to end of video

  13 janvier 2020, par Martin

  I have an ffmpeg command which is supposed to take an mp3 file and image file as inputs, and render a music video with the image as the background and the video length is the exact length of the mp3 audio file input.

  I was using this command :

  ffmpeg -loop 1 -framerate 2 -i "front.jpg" -i "audioInput.mp3" -vf "scale=2*trunc(iw/2):2*trunc(ih/2),setsar=1,format=yuv420p" -c:v libx264 -preset medium -tune stillimage -crf 18 -c:a aac -b:a 320k -shortest -vf scale=1920:1080 -pix_fmt yuv420p "videoOutput.mp4"

  But the problem was that my audioInput.mp3 file is 1 minute 12 seconds long, and my output video was 1 minute 39 seconds, with an added couple seconds of silence at the end of the video.

  I asked a question on stackoverflow and it was closed/linked to this question. The accepted answer says that this command would not add extra seconds onto the end of the video :

  ffmpeg -y -loop 1 -framerate 2 -i "front.jpg" -i "maintheme.mp3" -c:v libx264 -tune stillimage -c:a aac -b:a 320k -pix_fmt yuv420p -shortest -fflags +shortest -max_interleave_delta 100M "result2.mp4"

  I tried using this command, and my output video was still 1.14 seconds long.
  I tried the command again with a different audio file (flac) and the video output had again 2 seconds of blank audio at the end. Is one of my flags causing extra space to be appended ? Can I cut the video’s length to be that of the audio file ?

• FFmpeg on Azure Function call running slowly and producing an empty output file

  7 novembre 2017, par The Lemon

  I’m trying to make a function which uses ffmpeg, so far I haven’t been able to get anything other than the -version command to work properly. When I try to run a simple ffmpeg -i {input file path} {output file path} command, the function seems to get stuck for 3-4 minutes (in the process creating an empty output file), then try again and produce the error ’file already exists’. I’ve tried switching between the 64 bit ffmpeg.exe and the 32 bit ffmpeg.exe with the function running as both a 32 and 64 bit function. My code and the associated logs from trying to run the code are included below, if anyone can tell me what I’m doing wrong or how to get the process to work it would be greatly appreciated. Thanks in advance, Cuan

  edit : The process works on kudu with the same files, the output is shown at the bottom. On kudu the process ran in under half a minute, clearly something is causing the function process to hang, if anyone has advice it would be greatly appreciated. Thanks again, Cuan.

  second edit : I tried adding the -y to the end of my command, this works in that it no longer complains about overwriting, but alas it now just hangs twice due to timeout. (output at the bottom)

  edit the third : azure has a way to let you run functions locally, my function ran into the same issues on the local version but : as it turns out the actual processing is done within a few seconds, it just takes forever to decide to write to a file - if you terminate the process manually after the process had been running for 10 seconds the file immediately gets written. Again, any help is appreciated. Cuan.

  Run.csx :

  using System.Net;
  
  using System;
  
  using System.Diagnostics;
  
  using System.ComponentModel;
  
  public static async Task<httpresponsemessage> Run(HttpRequestMessage req, TraceWriter log)
  
  {
  
      log.Info("C# HTTP trigger function processed a request.");
  
      Process process = new Process();
  
      process.StartInfo.FileName = @"D:\home\site\wwwroot\HttpTestFunction\ffmpeg64.exe";
  
      string tmp = String.Format("-i \"" + "Airdocs Background Video.mp4" + "\" \"" + "tmpOut2.mp4" + "\"");
  
      log.Info("ffmpeg argument is: "+tmp);
  
      process.StartInfo.Arguments = tmp;
  
      process.StartInfo.UseShellExecute = false;
  
      process.StartInfo.RedirectStandardOutput = true;
  
      process.StartInfo.RedirectStandardError = true;
  
      process.StartInfo.WorkingDirectory = @"D:\home\site\wwwroot\HttpTestFunction";
  
      process.Start();
  
      log.Info("process started");
  
      string output = process.StandardOutput.ReadToEnd();
  
      string err = process.StandardError.ReadToEnd();
  
      log.Info("output:" + output);
  
      log.Info("error:"+err);
  
      process.WaitForExit();
  
  }
  
  </httpresponsemessage>

  Logs :

  2017-10-14T02:17:10.514 Function started (Id=e4ec7d1e-2bcb-4b74-8af2-15124f1576fb)
  
  2017-10-14T02:17:10.639 C# HTTP trigger function processed a request.
  
  2017-10-14T02:17:10.639 ffmpeg argument is: -i "Airdocs Background Video.mp4" "tmpOut2.mp4"
  
  2017-10-14T02:17:10.779 process started
  
  2017-10-14T02:18:15  No new trace in the past 1 min(s).
  
  2017-10-14T02:19:15  No new trace in the past 2 min(s).
  
  2017-10-14T02:20:15  No new trace in the past 3 min(s).
  
  2017-10-14T02:21:02.188 Function started (Id=b2ae9b59-8933-42e3-986c-fd26a6886285)
  
  2017-10-14T02:21:02.188 C# HTTP trigger function processed a request.
  
  2017-10-14T02:21:02.188 ffmpeg argument is: -i "Airdocs Background Video.mp4" "tmpOut2.mp4"
  
  2017-10-14T02:21:02.252 process started
  
  2017-10-14T02:21:02.377 output:
  
  2017-10-14T02:21:02.377 error:ffmpeg version N-87353-g183fd30 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.2.0 (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-libxml2 --enable-libzimg --enable-lzma --enable-zlib
  
    libavutil      55. 76.100 / 55. 76.100
  
    libavcodec     57.106.101 / 57.106.101
  
    libavformat    57. 82.101 / 57. 82.101
  
    libavdevice    57.  8.101 / 57.  8.101
  
    libavfilter     6.105.100 /  6.105.100
  
    libswscale      4.  7.103 /  4.  7.103
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Airdocs Background Video.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
      creation_time   : 2017-09-08T11:55:11.000000Z
  
    Duration: 00:00:24.02, start: 0.000000, bitrate: 105 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 104 kb/s, 30.30 fps, 30.30 tbr, 30k tbn, 60 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-09-08T11:55:11.000000Z
  
        handler_name    : VideoHandler
  
        encoder         : AVC Coding
  
  File 'tmpOut2.mp4' already exists. Overwrite ? [y/N] Not overwriting - exiting
  
  2017-10-14T02:21:02.392 Function completed (Success, Id=b2ae9b59-8933-42e3-986c-fd26a6886285, Duration=205ms)
  
  2017-10-14T02:22:10.563 Function completed (Failure, Id=e4ec7d1e-2bcb-4b74-8af2-15124f1576fb, Duration=300047ms)
  
  2017-10-14T02:22:10.610 Microsoft.Azure.WebJobs.Host: Timeout value of 00:05:00 was exceeded by function: Functions.HttpTestFunction.

  Kudu code (just running the ffmpeg command directly, not the run.csx file) :

  D:\home\site\wwwroot\HttpTestFunction>ffmpeg -i "Airdocs Background Video.mp4" tmpout3.mp4
  
  
  
  
  
  ffmpeg version N-87196-g6cadbb1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.1.0 (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. 74.100 / 55. 74.100
  
    libavcodec     57.105.100 / 57.105.100
  
    libavformat    57. 81.100 / 57. 81.100
  
    libavdevice    57.  8.100 / 57.  8.100
  
    libavfilter     6.101.100 /  6.101.100
  
    libswscale      4.  7.103 /  4.  7.103
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Airdocs Background Video.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
      creation_time   : 2017-09-08T11:55:11.000000Z
  
    Duration: 00:00:24.02, start: 0.000000, bitrate: 105 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 104 kb/s, 30.30 fps, 30.30 tbr, 30k tbn, 60 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-09-08T11:55:11.000000Z
  
        handler_name    : VideoHandler
  
        encoder         : AVC Coding
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 00000000005fc5a0] using SAR=1/1
  
  [libx264 @ 00000000005fc5a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 00000000005fc5a0] profile High, level 3.2
  
  [libx264 @ 00000000005fc5a0] 264 - core 152 r2851 ba24899 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'tmpout3.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
      encoder         : Lavf57.81.100
  
      Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 30.30 fps, 16k tbn, 30.30 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-09-08T11:55:11.000000Z
  
        handler_name    : VideoHandler
  
        encoder         : Lavc57.105.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  frame=  728 fps= 39 q=29.0 Lsize=      62kB time=00:00:23.92 bitrate=  21.1kbits/s speed=1.28x    
  
  video:52kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 17.915474%
  
  [libx264 @ 00000000005fc5a0] frame I:4     Avg QP:12.46  size:  6102
  
  [libx264 @ 00000000005fc5a0] frame P:184   Avg QP:16.94  size:    45
  
  [libx264 @ 00000000005fc5a0] frame B:540   Avg QP:20.50  size:    37
  
  [libx264 @ 00000000005fc5a0] consecutive B-frames:  1.1%  0.0%  0.0% 98.9%
  
  [libx264 @ 00000000005fc5a0] mb I  I16..4: 66.3% 30.4%  3.3%
  
  [libx264 @ 00000000005fc5a0] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:100.0%
  
  [libx264 @ 00000000005fc5a0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.0%  0.0%  0.0%  direct: 0.0%  skip:100.0%  L0:12.3% L1:87.7% BI: 0.0%
  
  [libx264 @ 00000000005fc5a0] 8x8 transform intra:30.5% inter:14.3%
  
  [libx264 @ 00000000005fc5a0] coded y,uvDC,uvAC intra: 2.3% 2.2% 2.1% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 00000000005fc5a0] i16 v,h,dc,p: 93%  6%  2%  0%
  
  [libx264 @ 00000000005fc5a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 41% 31%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 00000000005fc5a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 39% 17% 16%  5%  4%  5%  6%  3%  5%
  
  [libx264 @ 00000000005fc5a0] i8c dc,h,v,p: 93%  6%  1%  0%
  
  [libx264 @ 00000000005fc5a0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 00000000005fc5a0] ref B L1: 98.2%  1.8%
  
  [libx264 @ 00000000005fc5a0] kb/s:17.57
  
  
  
  
  
  
  
  D:\home\site\wwwroot\HttpTestFunction> 

  Output on azure with the -y command

  2017-10-25T04:34:45.519 Compilation succeeded.
  
  2017-10-25T04:34:46.160 Function started (Id=18880991-c93a-42a3-96b6-7df283e3bdb4)
  
  2017-10-25T04:34:46.300 C# HTTP trigger function processed a request.
  
  2017-10-25T04:34:46.300 ffmpeg argument is: -i "Airdocs Background Video.mp4" "tmpOut2.mp4" -y
  
  2017-10-25T04:34:46.394 process started
  
  2017-10-25T04:36:46  No new trace in the past 1 min(s).
  
  2017-10-25T04:37:46  No new trace in the past 2 min(s).
  
  2017-10-25T04:38:37.947 Function started (Id=c7f7f768-c53b-4074-a0c2-8391848bbd80)
  
  2017-10-25T04:38:37.963 C# HTTP trigger function processed a request.
  
  2017-10-25T04:38:37.963 ffmpeg argument is: -i "Airdocs Background Video.mp4" "tmpOut2.mp4" -y
  
  2017-10-25T04:38:38.025 process started
  
  2017-10-25T04:39:46  No new trace in the past 1 min(s).
  
  2017-10-25T04:39:46.258 Function completed (Failure, Id=18880991-c93a-42a3-96b6-7df283e3bdb4, Duration=300079ms)
  
  2017-10-25T04:39:46.321 Microsoft.Azure.WebJobs.Host: Timeout value of 00:05:00 was exceeded by function: Functions.HttpTestFunction.