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• FFMPEG recode clip1 to match clip2 for concat demux

  21 novembre 2020, par Gert Gottschalk

  I want to concat two video clips using ffmpeg concat. To use concat demuxer both should have same codec settings. clip2 is much shorter so I want to recode it to match clip1. Initially clip2 had tbn not matching and I adjusted that with '-video_track_timescale 50000'. Still the concat video after the cut into clip2 is garbled (audio seems OK)

  


  This is what ffprobe tells for clip1 :

  


  ffprobe version N-80251-g0c7fa15 Copyright (c) 2007-2016 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  configuration: --prefix=/home/tools/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/tools/ffmpeg_build/include --extra-ldflags=-L/home/tools/ffmpeg_build/lib --bindir=/home/tools/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      55. 24.100 / 55. 24.100
  libavcodec     57. 45.100 / 57. 45.100
  libavformat    57. 37.101 / 57. 37.101
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 46.101 /  6. 46.101
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'clip1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1
    creation_time   : 2020-11-09 01:16:52
  Duration: 01:23:09.33, start: 0.000000, bitrate: 2279 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2080 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
    Metadata:
      creation_time   : 2020-11-09 01:16:52
      handler_name    : 11.07_21-45_ard_90_TVOON_DE.mpg.HD_video.h264@GPAC0.5.2-DEV-revVersion: 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 196 kb/s (default)
    Metadata:
      creation_time   : 2020-11-09 01:17:45
      handler_name    : 11.07_21-45_ard_90_TVOON_DE.mpg.HD.aac@GPAC0.5.2-DEV-revVersion: 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1


  


  From clip2

  


  ffprobe version N-80251-g0c7fa15 Copyright (c) 2007-2016 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  configuration: --prefix=/home/tools/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/tools/ffmpeg_build/include --extra-ldflags=-L/home/tools/ffmpeg_build/lib --bindir=/home/tools/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      55. 24.100 / 55. 24.100
  libavcodec     57. 45.100 / 57. 45.100
  libavformat    57. 37.101 / 57. 37.101
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 46.101 /  6. 46.101
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'clip2.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.37.101
    comment         :  
  Duration: 00:18:42.02, start: 0.000000, bitrate: 1693 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1553 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s (default)
    Metadata:
      handler_name    : SoundHandler


  


  Then for concat :

  


  /home/tools/bin/ffmpeg -f concat -i list.files  -y clip12.mp4


  


  The only gap is with
clip1 : 2080 kb/s
clip2 : 1553 kb/s

  


  Is that significant ?

  


  If yes, how to recode clip2 to match and result in concat clip12 being clean ?

  


  EDIT (Per feedback from llogan) :

  


  Probing input clips with latest ffprobe.

  


  Clip1 :

  


  ffprobe version N-54874-ga1553b0cfb-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2007-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --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. 60.100 / 56. 60.100
  libavcodec     58.112.101 / 58.112.101
  libavformat    58. 64.100 / 58. 64.100
  libavdevice    58. 11.102 / 58. 11.102
  libavfilter     7. 88.102 /  7. 88.102
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'clip1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1
    creation_time   : 2020-11-09T01:16:52.000000Z
  Duration: 01:23:09.33, start: 0.000000, bitrate: 2279 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2080 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
    Metadata:
      creation_time   : 2020-11-09T01:16:52.000000Z
      handler_name    : 11.07_21-45_ard_90_TVOON_DE.mpg.HD_video.h264@GPAC0.5.2-DEV-revVersion: 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 196 kb/s (default)
    Metadata:
      creation_time   : 2020-11-09T01:17:45.000000Z
      handler_name    : 11.07_21-45_ard_90_TVOON_DE.mpg.HD.aac@GPAC0.5.2-DEV-revVersion: 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1


  


  Command & log to change clip2 :

  


  /usr/share/ffmpeg.4.3.1//ffmpeg-git-20201104-amd64-static/ffmpeg -i clip2.avi -ss 00:12:55  -t 00:05:48 -c:v libx264 -profile:v main -video_track_timescale 50k -c:a copy -y clip2.mp4 2> ffmpeg_clip2.log
ffmpeg version N-54874-ga1553b0cfb-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --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. 60.100 / 56. 60.100
  libavcodec     58.112.101 / 58.112.101
  libavformat    58. 64.100 / 58. 64.100
  libavdevice    58. 11.102 / 58. 11.102
  libavfilter     7. 88.102 /  7. 88.102
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, avi, from 'clip2.avi':
  Metadata:
    comment         :  
    encoder         : Lavf58.42.100
    encoded_by      : www.onlinetvrecorder.com
  Duration: 00:35:48.90, start: 0.000000, bitrate: 2243 kb/s
    Stream #0:0: Video: h264 (Main) (H264 / 0x34363248), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 2034 kb/s, 50 fps, 50 tbr, 50 tbn, 100 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, fltp, 192 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A  
...
frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A
[libx264 @ 0x71fb740] using SAR=1/1
[libx264 @ 0x71fb740] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3
[libx264 @ 0x71fb740] profile Main, level 3.2, 4:2:0, 8-bit
[libx264 @ 0x71fb740] 264 - core 161 r3027 4121277 - 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=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 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 'clip2.mp4':
  Metadata:
    comment         :  
    encoded_by      : www.onlinetvrecorder.com
    encoder         : Lavf58.64.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 50 fps, 50k tbn, 50 tbc
    Metadata:
      encoder         : Lavc58.112.101 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
frame=   15 fps=0.4 q=0.0 size=       0kB time=00:00:00.31 bitrate=   1.2kbits/s speed=0.00806x    
...
frame=17400 fps= 73 q=-1.0 Lsize=   62382kB time=00:05:47.97 bitrate=1468.6kbits/s speed=1.47x    
video:53846kB audio:8156kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.611439%
[libx264 @ 0x71fb740] frame I:157   Avg QP:18.21  size: 42082
[libx264 @ 0x71fb740] frame P:5607  Avg QP:22.21  size:  6677
[libx264 @ 0x71fb740] frame B:11636 Avg QP:23.93  size:   953
[libx264 @ 0x71fb740] consecutive B-frames:  8.3%  6.0%  5.0% 80.8%
[libx264 @ 0x71fb740] mb I  I16..4: 47.5%  0.0% 52.5%
[libx264 @ 0x71fb740] mb P  I16..4:  5.7%  0.0%  1.1%  P16..4: 35.4%  6.2%  3.0%  0.0%  0.0%    skip:48.4%
[libx264 @ 0x71fb740] mb B  I16..4:  0.2%  0.0%  0.0%  B16..8: 21.0%  0.4%  0.0%  direct: 0.5%  skip:77.9%  L0:45.1% L1:53.8% BI: 1.2%
[libx264 @ 0x71fb740] coded y,uvDC,uvAC intra: 24.6% 38.3% 6.0% inter: 2.8% 4.7% 0.0%
[libx264 @ 0x71fb740] i16 v,h,dc,p: 43% 24% 15% 18%
[libx264 @ 0x71fb740] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 20% 19%  6%  7%  6%  6%  6%  4%
[libx264 @ 0x71fb740] i8c dc,h,v,p: 57% 20% 20%  4%
[libx264 @ 0x71fb740] Weighted P-Frames: Y:0.5% UV:0.4%
[libx264 @ 0x71fb740] ref P L0: 70.3% 12.1% 14.0%  3.6%  0.0%
[libx264 @ 0x71fb740] ref B L0: 92.9%  5.9%  1.2%
[libx264 @ 0x71fb740] ref B L1: 97.5%  2.5%
[libx264 @ 0x71fb740] kb/s:1267.54


  


  I'm observing mismatch in what I assume is the audio channel.

  


  Clip1 :

  


  /usr/share/ffmpeg.4.3.1//ffmpeg-git-20201104-amd64-static/ffprobe  clip1.mp4
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2080 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 196 kb/s (default)


  


  Clip2 :

  


  /usr/share/ffmpeg.4.3.1//ffmpeg-git-20201104-amd64-static/ffprobe  clip2.mp4 
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1267 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)


  


  Probably need to match audio channel. I noticed that the concat too a long time. I was expecting the concat to just do copying and not re-rendering.

  


• How to concatenate 3 mp4 files using ffmpeg (facing error in resultant video) ?

  5 février 2021, par Mayank Thapliyal

  I have 3 videos of mp4 format. They have same resolution (640 X 1280) but other properties like frame rate etc are different. I want to join them back to back.So I gave a check on internet and I used the following method

  


  :: Create File List
echo file file1.mp4 >  mylist.txt 
echo file file2.mp4 >> mylist.txt
echo file file3.mp4 >> mylist.txt

:: Concatenate Files
ffmpeg -f concat -i mylist.txt -c copy output.mp4


  


  But unfortunately it did not worked.In the resultant video, file1 part got freezed, and audio of whole video shifted (no idea how).And other methods are also not working properly

  


  I just want to join them back to back.Any idea how to do it ?

  


  Edit :- I gave a check on the output of the ffmpeg (using pause command in bat and discovered the following. Maybe it may help regarding the issue)

  


  C:\Users\Cascade_Games\Desktop\Cascade Empire\ffmpeg-4.3.1-2020-10-01-full_build\bin>ffmpeg -f concat -i mylist.txt -vcodec copy -acodec copy Mux1.mp4
ffmpeg version 4.3.1-2020-10-01-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.0 (Rev3, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a0474e6a40] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'mylist.txt':
  Duration: N/A, start: -0.023220, bitrate: 2447 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    Metadata:
      handler_name    : VideoHandle
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s
    Metadata:
      handler_name    : SoundHandler
Output #0, mp4, to 'Mux1.mp4':
  Metadata:
    encoder         : Lavf58.45.100
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], q=2-31, 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc
    Metadata:
      handler_name    : VideoHandle
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a04750d700] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a0474ef040] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30282976, current: 27826977; changing to 30282977. This may result in incorrect timestamps in the output file.
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30282977, current: 27828129; changing to 30282978. This may result in incorrect timestamps in the output file.
(Same Thing was getting repeated,hence I deleted it)
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30283209, current: 28095393; changing to 30283210. This may result in incorrect timestamps in the output file.
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30283210, current: 28096545; changing to 30283211. This may result in incorrect timestamps in the output file.
[mp4 @ 000002a0478e09c0] aac bitstream error
    Last message repeated 234 times
frame=18937 fps=11438 q=-1.0 Lsize=   49051kB time=00:11:26.69 bitrate= 585.2kbits/s speed= 415x
video:40720kB audio:7653kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.401324%


  


  Edit :-
Info of all files (I have changed the video name to 1.mp4,2.mp4,3.mp4)

  


  C:\Users\Cascade_Games\Desktop\Cascade Empire\ffmpeg-4.3.1-2020-10-01-full_build\bin>ffmpeg -i 1.mp4 -i 2.mp4 -i 3.mp4
ffmpeg version 4.3.1-2020-10-01-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.0 (Rev3, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:00:05.27, start: 0.000000, bitrate: 2337 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandle
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:10:25.70, start: 0.000000, bitrate: 616 kb/s
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 511 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 96 kb/s (default)
    Metadata:
      handler_name    : SoundHandle
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '3.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:00:08.50, start: 0.000000, bitrate: 447 kb/s
    Stream #2:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1280x640 [SAR 1:1 DAR 2:1], 228 kb/s, 2 fps, 2 tbr, 16384 tbn, 4 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #2:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 319 kb/s (default)
    Metadata:
      handler_name    : SoundHandler


  


• Compilied Ffmpeg not accepting -c:v and -c:a

  2 février 2020, par King Horse

  I complied FFMPEG with libsrt, with the online compile guide. https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu & how to compile ffmpeg with enabling libsrt

  It seems to compile correctly.

  ffmpeg version N-96575-g843c24a Copyright (c) 2000-2020 the FFmpeg developers
  
  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
  
  configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/ubuntu/bin --enable-gpl --enable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libsrt --enable-nonfree
  
  libavutil      56. 38.100 / 56. 38.100
  
  libavcodec     58. 67.100 / 58. 67.100
  
  libavformat    58. 37.100 / 58. 37.100
  
  libavdevice    58.  9.103 / 58.  9.103
  
  libavfilter     7. 72.100 /  7. 72.100
  
  libswscale      5.  6.100 /  5.  6.100
  
  libswresample   3.  6.100 /  3.  6.100
  
  libpostproc    55.  6.100 / 55.  6.100

  But when running this command to convert a incoming srt stream to HLS, it doesn’t know the -c:a command. When switching the order, it runs that it doesn’t know about the -c:v command.

  ffmpeg -re -i srt://0.0.0.0:25000?pkt_size=1316&mode=listener -c:a copy -c:v copy -strict -f hls -hls_time 4 -hls_playlist_type event stream.m3u8

  ~$ ffmpeg -re -i srt://0.0.0.0:25000?pkt_size=1316&mode=listener -c:a copy -c:v copy -strict -f hls -hls_time 4 -hls_playlist_type event stream.m3u8
  
  [2] 9930
  
  ffmpeg version N-96575-g843c24a Copyright (c) 2000-2020 the FFmpeg developers
  
    built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
  
    configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/ubuntu/bin --enable-gpl --enable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libsrt --enable-nonfree
  
    libavutil      56. 38.100 / 56. 38.100
  
    libavcodec     58. 67.100 / 58. 67.100
  
    libavformat    58. 37.100 / 58. 37.100
  
    libavdevice    58.  9.103 / 58.  9.103
  
    libavfilter     7. 72.100 /  7. 72.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  -c:a: command not found
  
  
  
  [2]+  Stopped                 ffmpeg -re -i srt://0.0.0.0:25000?pkt_size=1316

  I have searched the issue, but I could not find anything similar.
  Does someone what I have missed in the setup ?

  Everything is manual complied through the guide, this was the final command I run to compile FFMPEG :

  cd ~/ffmpeg_sources && \
  
  wget -O ffmpeg-snapshot.tar.bz2 https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
  
  tar xjvf ffmpeg-snapshot.tar.bz2 && \
  
  cd ffmpeg && \
  
  PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
  
    --prefix="$HOME/ffmpeg_build" \
  
    --pkg-config-flags="--static" \
  
    --extra-cflags="-I$HOME/ffmpeg_build/include" \
  
    --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  
    --extra-libs="-lpthread -lm" \
  
    --bindir="$HOME/bin" \
  
    --enable-gpl \
  
    --enable-libaom \
  
    --enable-libass \
  
    --enable-libfdk-aac \
  
    --enable-libfreetype \
  
    --enable-libmp3lame \
  
    --enable-libopus \
  
    --enable-libvorbis \
  
    --enable-libvpx \
  
    --enable-libx264 \
  
    --enable-libx265 \
  
    --enable-libsrt \
  
    --enable-nonfree && \
  
  PATH="$HOME/bin:$PATH" make && \
  
  make install && \
  
  hash -r