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• FFMPEG - latest build doesn't work, earlier build does

  21 juin 2020, par rossmcm

  I have been using FFMPEG to overlay coloured rectangles on a video. I updated FFMPEG and it no longer works. No error is issued, it just doesn't do the job - the resulting video is the same as the input video. Here's the script :

  


  FFMpeg -y -i Input.mp4 -filter_complex \
  "nullsrc=size=1920x1080,  \
  drawbox=x=200:y=100:w=300:h=150:t=20:c=yellow,  fade=in:st=10:d=1:alpha=1, fade=out:st=20:d=2:alpha=1 [tmp1]; \ 
  nullsrc=size=1920x1080,  \
  drawbox=x=240:y=140:w=300:h=150:t=20:c=red,  fade=in:st=15:d=1:alpha=1, fade=out:st=25:d=2:alpha=1 [tmp2]; \
  [tmp1][tmp2] overlay=0:0:shortest=1[tmp3]; \
  [0:v][tmp3] overlay=0:0:shortest=1" \
  Output.mp4


  


  The output video should be the input video with a yellow rectangle added from T=10 to T=20 and a red rectangle from T=15 to T=25, fading them in and out.

  


  The version that was working (3.4) was one that came with an ImageMagick installation. The version I updated it to was 4.2.3. I tried it on various other builds I had lying around and it only works with 3.4.

  


  It seems unlikely that this is a regression so I haven't submitted a bug report. I figure it's more likely that I'm not doing something correctly and 3.4 is more lenient on its interpretation of my command.

  


  Whatever, I prefer to be working with a current build, so I invite comments on what the reasons might be.

  


  Console dump of 3.4 run

  


  ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --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-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
  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
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:01:48.67, start: 0.000000, bitrate: 1693 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1562 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 126 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 (h264) -> overlay:main (graph 0)
  overlay (graph 0) -> Stream #0:0 (libx264)
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000001f0d4a0e6a0] using SAR=1/1
[libx264 @ 000001f0d4a0e6a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001f0d4a0e6a0] profile High, level 4.0
[libx264 @ 000001f0d4a0e6a0] 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=12 lookahead_threads=2 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 'Output-34.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      encoder         : Lavc57.107.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc57.107.100 aac
frame= 3260 fps= 25 q=-1.0 Lsize=   21461kB time=00:01:48.56 bitrate=1619.3kbits/s speed=0.828x
video:19713kB audio:1634kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.534457%
[libx264 @ 000001f0d4a0e6a0] frame I:14    Avg QP:17.68  size:208205
[libx264 @ 000001f0d4a0e6a0] frame P:844   Avg QP:21.55  size: 16867
[libx264 @ 000001f0d4a0e6a0] frame B:2402  Avg QP:28.40  size:  1263
[libx264 @ 000001f0d4a0e6a0] consecutive B-frames:  0.7%  2.9%  0.4% 96.0%
[libx264 @ 000001f0d4a0e6a0] mb I  I16..4: 14.0% 39.6% 46.4%
[libx264 @ 000001f0d4a0e6a0] mb P  I16..4:  0.4%  0.7%  0.2%  P16..4: 20.2%  9.1%  4.6%  0.0%  0.0%    skip:64.8%
[libx264 @ 000001f0d4a0e6a0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 12.4%  0.4%  0.1%  direct: 0.1%  skip:87.1%  L0:42.9% L1:55.2% BI: 1.9%
[libx264 @ 000001f0d4a0e6a0] 8x8 transform intra:45.2% inter:68.3%
[libx264 @ 000001f0d4a0e6a0] coded y,uvDC,uvAC intra: 64.4% 81.6% 45.1% inter: 2.9% 4.2% 0.1%
[libx264 @ 000001f0d4a0e6a0] i16 v,h,dc,p: 32% 26%  6% 37%
[libx264 @ 000001f0d4a0e6a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 20% 15%  5%  6%  7%  7%  7%  8%
[libx264 @ 000001f0d4a0e6a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 28%  8%  4%  6%  6%  6%  5%  5%
[libx264 @ 000001f0d4a0e6a0] i8c dc,h,v,p: 37% 25% 28% 10%
[libx264 @ 000001f0d4a0e6a0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001f0d4a0e6a0] ref P L0: 70.4% 15.3% 10.8%  3.5%
[libx264 @ 000001f0d4a0e6a0] ref B L0: 93.1%  6.0%  0.9%
[libx264 @ 000001f0d4a0e6a0] ref B L1: 97.8%  2.2%
[libx264 @ 000001f0d4a0e6a0] kb/s:1486.03
[aac @ 000001f0d4a10a20] Qavg: 1586.609


  


  And 4.2.3

  


  ffmpeg version 4.2.3 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200523
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --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 --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:01:48.67, start: 0.000000, bitrate: 1693 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1562 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 126 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 (h264) -> overlay:main (graph 0)
  overlay (graph 0) -> Stream #0:0 (libx264)
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000001e7b4531d40] using SAR=1/1
[libx264 @ 000001e7b4531d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001e7b4531d40] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 000001e7b4531d40] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=12 lookahead_threads=2 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 'Output-423.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc58.54.100 aac
frame= 3260 fps= 28 q=-1.0 Lsize=   21425kB time=00:01:48.56 bitrate=1616.7kbits/s speed=0.917x
video:19686kB audio:1625kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.535352%
[libx264 @ 000001e7b4531d40] frame I:14    Avg QP:17.68  size:208355
[libx264 @ 000001e7b4531d40] frame P:844   Avg QP:21.54  size: 16838
[libx264 @ 000001e7b4531d40] frame B:2402  Avg QP:28.43  size:  1261
[libx264 @ 000001e7b4531d40] consecutive B-frames:  0.7%  2.9%  0.4% 96.0%
[libx264 @ 000001e7b4531d40] mb I  I16..4: 13.9% 39.7% 46.4%
[libx264 @ 000001e7b4531d40] mb P  I16..4:  0.4%  0.7%  0.2%  P16..4: 20.2%  9.1%  4.6%  0.0%  0.0%    skip:64.8%
[libx264 @ 000001e7b4531d40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 12.4%  0.4%  0.1%  direct: 0.1%  skip:87.1%  L0:42.9% L1:55.2% BI: 1.9%
[libx264 @ 000001e7b4531d40] 8x8 transform intra:45.3% inter:68.3%
[libx264 @ 000001e7b4531d40] coded y,uvDC,uvAC intra: 65.2% 82.4% 45.8% inter: 2.9% 4.2% 0.1%
[libx264 @ 000001e7b4531d40] i16 v,h,dc,p: 32% 24%  6% 38%
[libx264 @ 000001e7b4531d40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 19% 14%  5%  6%  7%  7%  7%  8%
[libx264 @ 000001e7b4531d40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 28%  8%  4%  6%  6%  6%  5%  5%
[libx264 @ 000001e7b4531d40] i8c dc,h,v,p: 37% 24% 28% 11%
[libx264 @ 000001e7b4531d40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001e7b4531d40] ref P L0: 70.4% 15.3% 10.8%  3.5%
[libx264 @ 000001e7b4531d40] ref B L0: 93.1%  6.0%  0.9%
[libx264 @ 000001e7b4531d40] ref B L1: 97.8%  2.2%
[libx264 @ 000001e7b4531d40] kb/s:1483.98
[aac @ 000001e7b47fa800] Qavg: 1462.566


  


• Extract image of every frame of a video using react-native-ffmpeg

  1er octobre 2020, par EdG

  I have looked all over the internet to get a way to extract image of everyframe of a video using react-native-ffmpeg. I am making a mobile app and I want to show all per frame images on the video timeline. I want to do this natively on mobile so that I can utilise hardware power of mobile. That is the reason I am looking for react-native-ffmpeg kind of library. Am I in the right direction ? This npmjs.com/package/react-native-ffmpeg is what I am trying to use. I need to know the command to do the job.

  


• Concatenate mp4 video files on iOS using Libavformat

  3 mars 2017, par Felix

  I need to merge (i.e. concatenate) multiple video files (using H.264 codec) in an iOS application. The problem is I can’t use AVFoundation because it can’t handle the video format on iOS (no problem on MacOS). So I tried to use the FFmpeg library, specifically Libavformat for this task. I found C code that looks useful here : http://stackoverflow.com/a/16293046. But i can’t get it to work and don’t understand it completly. The output video file appears to play only black frames. I’m using the precompiled libraries from the FFmpeg CocoaPod.

  I was able to convert a single test video (which has 1GB) using the command line tool on my Mac :

  $ ffmpeg -i input.mp4 -vcodec copy output.mp4
  
  ffmpeg version 3.2.4-tessus Copyright (c) 2000-2017 the FFmpeg developers
  
    built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  
    configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb
  
    libavutil      55. 34.101 / 55. 34.101
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.101 / 57. 56.101
  
    libavdevice    57.  1.100 / 57.  1.100
  
    libavfilter     6. 65.100 /  6. 65.100
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
    libpostproc    54.  1.100 / 54.  1.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomiso2
  
      creation_time   : 2016-09-14T14:35:53.000000Z
  
    Duration: 00:04:32.29, start: 0.000000, bitrate: 30013 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29958 kb/s, 50 fps, 50 tbr, 5k tbn, 100 tbc (default)
  
      Metadata:
  
        creation_time   : 2016-09-14T14:35:53.000000Z
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-09-14T14:35:53.000000Z
  
        handler_name    : SoundHandler
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomiso2
  
      encoder         : Lavf57.56.101
  
      Stream #0:0(eng): Video: h264 (Main) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 29958 kb/s, 50 fps, 50 tbr, 10k tbn, 5k tbc (default)
  
      Metadata:
  
        creation_time   : 2016-09-14T14:35:53.000000Z
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-09-14T14:35:53.000000Z
  
        handler_name    : SoundHandler
  
        encoder         : Lavc57.64.101 aac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  frame=13577 fps=1280 q=-1.0 Lsize=  997604kB time=00:04:32.28 bitrate=30013.7kbits/s speed=25.7x    
  
  video:993034kB audio:4268kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.030246%
  
  [aac @ 0x7fa849809e00] Qavg: 942.999

  This process is very fast (10 seconds) and I can play the resulting video on iOS using AVFoundation frameworks. If i could do the same for each input video using Libavformat in my iOS app i could solve my problem by merging the videos in a second step using AVAssetExportSession.

  Any help is appreciated.