Recherche avancée

Sur d’autres sites (11253)

• FFMPEG fails to trim beginning of clip

  23 février 2020, par miguelmorin

  I have two .MTS files taken in sequence and I want to trim them to the first five seconds. This command works for the first file :

  ffmpeg -ss 0 -to 5 -i 00117.MTS -vcodec copy -acodec copy start_00117.MTS

  The result is 5 seconds and 17 MB, as opposed to the 12 minutes and 2 GB from the original.

  The same command on the second file fails :

  ffmpeg -ss 0 -to 5 -i 00118.MTS -vcodec copy -acodec copy start_00118.MTS

  The result is 12 minutes and 2 GB, like its original file.

  What is the problem ?

  Full log :

  $ rm start_00117.MTS; ffmpeg -ss 0 -to 5 -i 00117.MTS -vcodec copy -acodec copy start_00117.MTS
  
  ffmpeg version 4.1.4 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.4_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  
    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
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, mpegts, from '00117.MTS':
  
    Duration: 00:12:36.02, start: 1.040000, bitrate: 22490 kb/s
  
    Program 1 
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
  
      Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
  
  Output #0, mpegts, to 'start_00117.MTS':
  
    Metadata:
  
      encoder         : Lavf58.20.100
  
      Stream #0:0: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 50 tbr, 90k tbn, 90k tbc
  
      Stream #0:1: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=  304 fps=0.0 q=-1.0 Lsize=   16601kB time=00:00:06.02 bitrate=22590.4kbits/s speed=25.8x    
  
  video:15162kB audio:189kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 8.143849%
  
  $ rm start_00118.MTS; ffmpeg -ss 0 -to 5 -i 00118.MTS -vcodec copy -acodec copy start_00118.MTS
  
  rm: start_00118.MTS: No such file or directory
  
  ffmpeg version 4.1.4 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.4_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  
    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
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, mpegts, from '00118.MTS':
  
    Duration: 00:12:36.59, start: 756.592000, bitrate: 22471 kb/s
  
    Program 1 
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
  
      Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
  
  Output #0, mpegts, to 'start_00118.MTS':
  
    Metadata:
  
      encoder         : Lavf58.20.100
  
      Stream #0:0: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 50 tbr, 90k tbn, 90k tbc
  
      Stream #0:1: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=37804 fps=923 q=-1.0 Lsize= 2130467kB time=00:12:36.54 bitrate=23069.0kbits/s speed=18.5x    
  
  video:1946718kB audio:23627kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 8.126621%

• 10bit DPX to DNXHR_444 with FFmpeg causing colour shift

  15 août 2019, par Josh Northeast

  I’m trying to build a python application to convert a 10bit DPX sequence to a 4k DNXHR_444 MOV with a Arri to Rec709 lut, just as I would in Davcincci resolve.

  ffmpeg -f image2 -framerate 24 -pattern_type glob -i INPUT.dpx -c:v dnxhd -profile:v dnxhr_444 -vf lut3d=ArriAlexa_LogCtoRec709_Resolve.cube,colormatrix=bt601:bt709 -pix_fmt yuv444p10le -c:a pcm_s16le -y -timecode 00:00:41:16 OUTPUT.mov

  When comparing the output to the dpx in resolve with the lut on it, there is a slight colour shift making everything slightly more red. Even when i take the lut out of the ffmpeg code, there is still a slight redness. The colourmatrix helps a bit to get it closer but it isn’t close enough. Any ideas why I can’t get them to match ?

  LOG :

  ffmpeg -f image2 -framerate 24 -pattern_type glob -i /dpx/*.dpx -c:v dnxhd -profile:v dnxhr_444 -vf lut3d=/Arri/ArriAlexa_LogCtoRec709_Resolve.cube,colormatrix=bt601:bt709 -pix_fmt yuv444p10le -c:a pcm_s16le -y -timecode 00:00:41:16 /dpx/test.mov
  
  ffmpeg version 4.2-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-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  
    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, image2, from '/dpx/*.dpx':
  
    Duration: 00:00:07.67, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: dpx, gbrp10le, 4096x1716 [SAR 1:1 DAR 1024:429], 24 tbr, 24 tbn, 24 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (dpx (native) -> dnxhd (native))
  
  Press [q] to stop, [?] for help
  
  Output #0, mov, to '/dpx/test.mov':
  
    Metadata:
  
      timecode        : 00:00:41:16
  
      encoder         : Lavf58.29.100
  
      Stream #0:0: Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le, 4096x1716 [SAR 1:1 DAR 1024:429], q=2-1024, 200 kb/s, 0.04 fps, 12288 tbn, 24 tbc
  
      Metadata:
  
        encoder         : Lavc58.54.100 dnxhd
  
  frame=  184 fps=1.9 q=1.0 Lsize= 1117250kB time=00:00:07.62 bitrate=1200316.8kbits/s speed=0.0799x       
  
  video:1117248kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000187%

  Here is a :

  • JPG - reference of what the DPX + LUT should look like
  • DPX - a frame of the dpx sequence I’m trying to convert to DNXHR_444
  • the ArriLogC_to_Rec709 LUT to be applied to the DPX
    Let me know if you need anything else.

  https://drive.google.com/drive/folders/1j2Qq1sV5ZJJsMYe3DOFOV0dnQ3VIotcw

  Cheers,
  Josh

• Reverse and areverse crash the computer

  14 août 2019, par Alex

  I am using this command :

  ffmpeg -y -ss 00:03:52.612 -i "H:\DCIM\100GOPRO\GOPR3258.MP4" -r 60 -t 00:00:12.140 -vf reverse -af afade=t=in:ss=0:d=1,afade=t=out:st='00\:00\:11.140':d=1,areverse 6.mp4

  It increases the memory consumption of the computer to a point of collapse.

  Putting it like

  ffmpeg -y -ss 00:03:52.612 -i "H:\DCIM\100GOPRO\GOPR3258.MP4" -r 60 -t 00:00:12.140 -af afade=t=in:ss=0:d=1,afade=t=out:st='00\:00\:11.140':d=1 6.mp4

  Works without a problem.

  Therefore, the issue is in the -vf reverse and -af reverse.

  The output is

  ffmpeg version N-94543-g8fcc5d963e Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.1.1 (GCC) 20190807
  
    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. 33.100 / 56. 33.100
  
    libavcodec     58. 55.100 / 58. 55.100
  
    libavformat    58. 30.100 / 58. 30.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.100 /  7. 58.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0000024b71029180] Using non-standard frame rate 59/1
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'H:\DCIM\100GOPRO\GOPR3258.MP4':
  
    Metadata:
  
      major_brand     : mp41
  
      minor_version   : 538120216
  
      compatible_brands: mp41
  
      creation_time   : 2019-08-14T13:50:26.000000Z
  
      firmware        : HD4.02.05.00.00
  
    Duration: 00:17:43.08, start: 0.000000, bitrate: 30127 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 29972 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-08-14T13:50:26.000000Z
  
        handler_name    :         GoPro AVC
  
        encoder         : GoPro AVC encoder
  
        timecode        : 14:03:41:09
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-08-14T13:50:26.000000Z
  
        handler_name    :         GoPro AAC
  
        timecode        : 14:03:41:09
  
      Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
  
      Metadata:
  
        creation_time   : 2019-08-14T13:50:26.000000Z
  
        handler_name    :         GoPro TCD
  
        timecode        : 14:03:41:09
  
      Stream #0:3(eng): Data: none (fdsc / 0x63736466), 13 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-08-14T13:50:26.000000Z
  
        handler_name    :         GoPro SOS
  
  Only '-vf reverse' read, ignoring remaining -vf options: Use ',' to separate filters
  
  Only '-af afade=t=in:ss=0:d=1,afade=t=out:st='00\:00\:11.140':d=1,areverse' read, ignoring remaining -af options: Use ',' to separate filters
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0000024b7148cc40] using SAR=1/1
  
  [libx264 @ 0000024b7148cc40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0000024b7148cc40] profile High, level 4.2, 4:2:0, 8-bit
  
  [libx264 @ 0000024b7148cc40] 264 - core 158 r2984 3759fcb - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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 '6.mp4':
  
    Metadata:
  
      major_brand     : mp41
  
      minor_version   : 538120216
  
      compatible_brands: mp41
  
      firmware        : HD4.02.05.00.00
  
      encoder         : Lavf58.30.100
  
      Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 0.02 fps, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-08-14T13:50:26.000000Z
  
        handler_name    :         GoPro AVC
  
        timecode        : 14:03:41:09
  
        encoder         : Lavc58.55.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: 18446744073709551615
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-08-14T13:50:26.000000Z
  
        handler_name    :         GoPro AAC
  
        timecode        : 14:03:41:09
  
        encoder         : Lavc58.55.100 aac
  
  frame=    0 fps=0.0 q=0.0 Lsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x
  
  video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [aac @ 0000024b71498b40] Qavg: nan

  What I find interesting is

  Only '-vf reverse' read, ignoring remaining -vf options: Use ',' to separate filters

  As there is only -vf reverse

  Only '-af afade=t=in:ss=0:d=1,afade=t=out:st='00\:00\:11.140':d=1,areverse' read, ignoring remaining -af options: Use ',' to separate filters

  Here the same.

  I tried

  ffmpeg -y -ss 00:03:52.612 -i "H:\DCIM\100GOPRO\GOPR3258.MP4" -r 60 -t 00:00:12.140 -vf "reverse" -af "afade=t=in:ss=0:d=1,afade=t=out:st='00\:00\:11.140':d=1,areverse" 6.mp4

  to no avail

  What is causing this issue ?