Recherche avancée

Sur d’autres sites (10244)

• File (mp3) concatenation issues using FFmpeg

  17 novembre 2020, par Giorgio Robino

  I want to concatenate some MP3 files using the FFmpeg concatenation protocol.

  


  Here is a successful try :

  


  $ ffmpeg -loglevel panic -i "concat:audio/it/ci.mp3|audio/it/èsse.mp3|audio/it/cu.mp3|audio/it/u.mp3|audio/it/tre.mp3|audio/it/zero.mp3|audio/it/cinque.mp3|audio/it/quattro.mp3|audio/it/tre.mp3|audio/it/otto.mp3|audio/it/tre.mp3" -c copy audio/it/CSQU3054383.mp3 -y

$ ll audio/it/CSQU3054383.mp3
-rw-rw-r-- 1 giorgio 26K Nov  9 16:16 audio/it/CSQU3054383.mp3


  


  So far, all is OK !

  


  BTW, all (Mp3) files have the same codecs, so MP3 FFmpeg concatenation protocol runs as expected !

  


  ---

  


  Now, I want to insert a pause file audio/it/PAUSE_2.mp3, between each previous files :

  


  $ ffmpeg -loglevel panic -i "concat:audio/it/ci.mp3|audio/it/PAUSE_2.mp3|audio/it/èsse.mp3|audio/it/PAUSE_2.mp3|audio/it/cu.mp3|audio/it/PAUSE_2.mp3|audio/it/u.mp3|audio/it/PAUSE_2.mp3|audio/it/tre.mp3|audio/it/PAUSE_2.mp3|audio/it/zero.mp3|audio/it/PAUSE_2.mp3|audio/it/cinque.mp3|audio/it/PAUSE_2.mp3|audio/it/quattro.mp3|audio/it/PAUSE_2.mp3|audio/it/tre.mp3|audio/it/PAUSE_2.mp3|audio/it/otto.mp3|audio/it/PAUSE_2.mp3|audio/it/tre.mp3" -c copy audio/it/CSQU3054383.mp3 -y
$


  


  This command run apparently without any error, but the output file (audio/it/CSQU3054383.mp3) is not generated at all.

  


  **Question 1 (minor) :
  

  


  Why doesn't FFmpeg report any error and doesn't generate the expected output ?**

  


  In fact, I already experienced that FFmpeg, in some circumstances, fails without saying why :(

  


  ---

  


  I suspect the problem happens because the file audio/it/PAUSE_2.mp3 doesn't have a constant bit rate (CBR), as other files, e.g. :

  


  $ mediainfo  audio/it/ci.mp3
General
Complete name                            : audio/it/ci.mp3
Format                                   : MPEG Audio
File size                                : 2.06 KiB
Duration                                 : 528 ms
Overall bit rate mode                    : Constant
Overall bit rate                         : 32.0 kb/s

Audio
Format                                   : MPEG Audio
Format version                           : Version 2
Format profile                           : Layer 3
Duration                                 : 528 ms
Bit rate mode                            : Constant
Bit rate                                 : 32.0 kb/s
Channel(s)                               : 1 channel
Sampling rate                            : 24.0 kHz
Frame rate                               : 41.667 FPS (576 SPF)
Compression mode                         : Lossy
Stream size                              : 2.06 KiB (100%)

$ ffprobe audio/it/ci.mp3
ffprobe version 3.4.8-0ubuntu0.2 Copyright (c) 2007-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  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
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
[mp3 @ 0x564491288080] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'audio/it/ci.mp3':
  Duration: 00:00:00.53, start: 0.000000, bitrate: 32 kb/s
    Stream #0:0: Audio: mp3, 24000 Hz, mono, s16p, 32 kb/s



  


  Instead, the inserted pause file has a variable bit rate, as mediainfo states :

  


  $ mediainfo audio/it/PAUSE_2.mp3
General
Complete name                            : audio/it/PAUSE_2.mp3
Format                                   : MPEG Audio
File size                                : 8.29 KiB
Overall bit rate mode                    : Variable
Writing library                          : LAME3.100

Audio
Format                                   : MPEG Audio
Format version                           : Version 2
Format profile                           : Layer 3
Bit rate mode                            : Variable
Channel(s)                               : 1 channel
Sampling rate                            : 24.0 kHz
Compression mode                         : Lossy
Stream size                              : 8.06 KiB (97%)
Writing library                          : LAME3.100


  


  Here my Bash script I used to generate the pause :

  


  $ cat com/pause&#xA;#!/bin/bash&#xA;&#xA;# https://ffmpeg.org/ffmpeg-filters.html#toc-anullsrc&#xA;# https://ffmpeg.org/ffmpeg-utils.html#toc-Examples-1&#xA;&#xA;if [ $# -eq 0 ]&#xA;  then&#xA;    echo&#xA;    echo "create a pause, a silence audio file (MP3) of specified number of milliseconds"&#xA;    echo&#xA;    echo "usage: $0 <time duration="duration"> <directory path="path">"&#xA;    echo&#xA;    echo "example: $0 2"&#xA;    echo "example: $0 0.5 tmp/"&#xA;    echo&#xA;    exit&#xA;fi&#xA;&#xA;timeDuration=$1&#xA;directoryPath=$2&#xA;&#xA;suffix=mp3&#xA;&#xA;# https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate&#xA;#https://trac.ffmpeg.org/wiki/Encode/MP3&#xA;bitrate=32k&#xA;samplingRate=24000&#xA;outputFile="${directoryPath}PAUSE_${timeDuration}.${suffix}"&#xA;&#xA;  #-b:a $bitrate -minrate $bitrate -maxrate $bitrate -bufsize $bitrate \&#xA;ffmpeg \&#xA;  -f lavfi \&#xA;  -i anullsrc=r=$samplingRate:cl=mono \&#xA;  -t $timeDuration \&#xA;  -b:a $bitrate -minrate $bitrate -maxrate $bitrate \&#xA;  -codec:a libmp3lame \&#xA;  $outputFile -y&#xA;&#xA;echo&#xA;echo "created file: $outputFile"&#xA;echo&#xA;&#xA;</directory></time>

  


  Unfortunately, the created file seems with a variable bit rate and not with a constant bit rate (CBR), as expected ( -b:a ... ) :

  


  $ com/pause 2
ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  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
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, lavfi, from 'anullsrc=r=24000:cl=mono':
  Duration: N/A, start: 0.000000, bitrate: 192 kb/s
    Stream #0:0: Audio: pcm_u8, 24000 Hz, mono, u8, 192 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_u8 (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
Output #0, mp3, to 'PAUSE_2.mp3':
  Metadata:
    TSSE            : Lavf57.83.100
    Stream #0:0: Audio: mp3 (libmp3lame), 24000 Hz, mono, s16p, 32 kb/s
    Metadata:
      encoder         : Lavc57.107.100 libmp3lame
size=       8kB time=00:00:02.01 bitrate=  33.7kbits/s speed= 192x
video:0kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.870640%

created file: PAUSE_2.mp3


  


  Question 2 :

  


  What's wrong in my Bash script (why doesn't it generate a CBR file ?
How can I generate an silence pause file (silence of N milliseconds) with the exact settings of previous files ?

  


• ffmpeg aresample has no effect while it works in ffplay

  11 novembre 2020, par Lemon Sky

  I have a .ts file which is missing frames 20 seconds into the file. I'd like to fill the missing parts with silence. This works using the following command with ffplay :

  


  ffplay -i http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts -af aresample=async=1

  


  The same should work with ffmpeg but no silence is injected. Instead, the audio just continues playing. Example :

  


  ffmpeg -i http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts -af aresample=async=1 -f wav -acodec pcm_s16le -ac 2 - | ffplay -i -

  


  What am I doing wrong ?

  


  Log :

  


  >ffmpeg -y -nostats -loglevel trace -i http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts -af aresample=async=1 -f wav -acodec pcm_s16le -ac 2 out.wav
ffmpeg version 4.3.1-2020-11-08-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
Splitting the commandline.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-nostats' ... matched as option 'stats' (print progress report during encoding) with argument 0.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'trace'.
Reading option '-i' ... matched as input url with argument 'http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts'.
Reading option '-af' ... matched as option 'af' (set audio filters) with argument 'aresample=async=1'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'wav'.
Reading option '-acodec' ... matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'pcm_s16le'.
Reading option '-ac' ... matched as option 'ac' (set number of audio channels) with argument '2'.
Reading option 'out.wav' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option y (overwrite output files) with argument 1.
Applying option nostats (print progress report during encoding) with argument 0.
Applying option loglevel (set logging level) with argument trace.
Successfully parsed a group of options.
Parsing a group of options: input url http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts.
Successfully parsed a group of options.
Opening an input file: http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts.
[NULL @ 000001d0e7bbd200] Opening 'http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts' for reading
[http @ 000001d0e7bbe2c0] Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy,data'
[tcp @ 000001d0e7bc0d00] Original list of addresses:
[tcp @ 000001d0e7bc0d00] Address 144.2.127.86 port 80
[tcp @ 000001d0e7bc0d00] Interleaved list of addresses:
[tcp @ 000001d0e7bc0d00] Address 144.2.127.86 port 80
[tcp @ 000001d0e7bc0d00] Starting connection attempt to 144.2.127.86 port 80
[tcp @ 000001d0e7bc0d00] Successfully connected to 144.2.127.86 port 80
[http @ 000001d0e7bbe2c0] request: GET /KFYI-AM_2020-10-30_09-05-26.ts HTTP/1.1
User-Agent: Lavf/58.45.100
Accept: */*
Range: bytes=0-
Connection: close
Host: tyberis.com
Icy-MetaData: 1


[http @ 000001d0e7bbe2c0] header='HTTP/1.1 206 Partial Content'
[http @ 000001d0e7bbe2c0] http_code=206
[http @ 000001d0e7bbe2c0] header='Content-Type: video/vnd.dlna.mpeg-tts'
[http @ 000001d0e7bbe2c0] header='Last-Modified: Tue, 10 Nov 2020 19:12:18 GMT'
[http @ 000001d0e7bbe2c0] header='Accept-Ranges: bytes'
[http @ 000001d0e7bbe2c0] header='ETag: "7c6a9e6895b7d61:0"'
[http @ 000001d0e7bbe2c0] header='Server: Microsoft-IIS/10.0'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Origin: *'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization, Range'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Methods: GET,HEAD,OPTIONS,POST,PUT'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Credentials: true'
[http @ 000001d0e7bbe2c0] header='Date: Wed, 11 Nov 2020 15:52:32 GMT'
[http @ 000001d0e7bbe2c0] header='Connection: close'
[http @ 000001d0e7bbe2c0] header='Content-Length: 6531496'
[http @ 000001d0e7bbe2c0] header='Content-Range: bytes 0-6531495/6531496'
[http @ 000001d0e7bbe2c0] header=''
Probing mpegts score:50 size:2048
[mpegts @ 000001d0e7bbd200] Format mpegts probed with size=2048 and score=50
[mpegts @ 000001d0e7bbd200] Probe: 7648, score: 41, dvhs_score: -2, fec_score: -2
[mpegts @ 000001d0e7bbd200] Filter: pid=0x11 type=1
[mpegts @ 000001d0e7bbd200] Filter: pid=0x0 type=1
[mpegts @ 000001d0e7bbd200] Filter: pid=0x12 type=1
[mpegts @ 000001d0e7bbd200] SDT:
[mpegts @ 000001d0e7bbd200] tag: 0x48 len=18
[mpegts @ 000001d0e7bbd200] new_program: id=0x0001
[mpegts @ 000001d0e7bbd200] PAT:
[mpegts @ 000001d0e7bbd200] sid=0x1 pid=0x1000
[mpegts @ 000001d0e7bbd200] new_program: id=0x0001
[mpegts @ 000001d0e7bbd200] Filter: pid=0x1000 type=1
[mpegts @ 000001d0e7bbd200] PMT: len 21
[mpegts @ 000001d0e7bbd200] sid=0x1 sec_num=0/0 version=0 tid=2
[mpegts @ 000001d0e7bbd200] pcr_pid=0x100
[mpegts @ 000001d0e7bbd200] Filter: pid=0x100 type=0
[mpegts @ 000001d0e7bbd200] stream=0 stream_type=f pid=100 prog_reg_desc=
[mpegts @ 000001d0e7bbd200] tuning done
[mpegts @ 000001d0e7bbd200] Before avformat_find_stream_info() pos: 0 bytes read:7648 seeks:0 nb_streams:1
[mpegts @ 000001d0e7bbd200] Skipping after seek
[mpegts @ 000001d0e7bbd200] SDT:
[mpegts @ 000001d0e7bbd200] tag: 0x48 len=18
[mpegts @ 000001d0e7bbd200] new_program: id=0x0001
[mpegts @ 000001d0e7bbd200] PAT:
[mpegts @ 000001d0e7bbd200] sid=0x1 pid=0x1000
[mpegts @ 000001d0e7bbd200] new_program: id=0x0001
[mpegts @ 000001d0e7bbd200] PMT: len 21
[mpegts @ 000001d0e7bbd200] sid=0x1 sec_num=0/0 version=0 tid=2
[mpegts @ 000001d0e7bbd200] pcr_pid=0x100
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[mpegts @ 000001d0e7bbd200] probing stream 0 pp:2500
Probing aac score:51 size:2640
Probing flac score:13 size:2640
[mpegts @ 000001d0e7bbd200] Probe with size=2640, packets=1 detected aac with score=51
[mpegts @ 000001d0e7bbd200] probed stream 0
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
    Last message repeated 11 times
[mpegts @ 000001d0e7bbd200] max_analyze_duration 5000000 reached at 5014800 microseconds st:0
[tcp @ 000001d0e7c31480] Original list of addresses:
[tcp @ 000001d0e7c31480] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31480] Interleaved list of addresses:
[tcp @ 000001d0e7c31480] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31480] Starting connection attempt to 144.2.127.86 port 80
[tcp @ 000001d0e7c31480] Successfully connected to 144.2.127.86 port 80
[http @ 000001d0e7bbe2c0] request: GET /KFYI-AM_2020-10-30_09-05-26.ts HTTP/1.1
User-Agent: Lavf/58.45.100
Accept: */*
Range: bytes=6281496-
Connection: close
Host: tyberis.com
Icy-MetaData: 1


[http @ 000001d0e7bbe2c0] header='HTTP/1.1 206 Partial Content'
[http @ 000001d0e7bbe2c0] http_code=206
[http @ 000001d0e7bbe2c0] header='Content-Type: video/vnd.dlna.mpeg-tts'
[http @ 000001d0e7bbe2c0] header='Last-Modified: Tue, 10 Nov 2020 19:12:18 GMT'
[http @ 000001d0e7bbe2c0] header='Accept-Ranges: bytes'
[http @ 000001d0e7bbe2c0] header='ETag: "7c6a9e6895b7d61:0"'
[http @ 000001d0e7bbe2c0] header='Server: Microsoft-IIS/10.0'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Origin: *'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization, Range'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Methods: GET,HEAD,OPTIONS,POST,PUT'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Credentials: true'
[http @ 000001d0e7bbe2c0] header='Date: Wed, 11 Nov 2020 15:52:32 GMT'
[http @ 000001d0e7bbe2c0] header='Connection: close'
[http @ 000001d0e7bbe2c0] header='Content-Length: 250000'
[http @ 000001d0e7bbe2c0] header='Content-Range: bytes 6281496-6531495/6531496'
[http @ 000001d0e7bbe2c0] header=''
[mpegts @ 000001d0e7bbd200] Skipping after seek
[mpegts @ 000001d0e7bbd200] Probe: 763, score: 5, dvhs_score: 1, fec_score: 1
[mpegts @ 000001d0e7bbd200] Probe: 8192, score: 44, dvhs_score: -3, fec_score: -3
[tcp @ 000001d0e7c31580] Original list of addresses:
[tcp @ 000001d0e7c31580] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31580] Interleaved list of addresses:
[tcp @ 000001d0e7c31580] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31580] Starting connection attempt to 144.2.127.86 port 80
[tcp @ 000001d0e7c31580] Successfully connected to 144.2.127.86 port 80
[http @ 000001d0e7bbe2c0] request: GET /KFYI-AM_2020-10-30_09-05-26.ts HTTP/1.1
User-Agent: Lavf/58.45.100
Accept: */*
Range: bytes=6266023-
Connection: close
Host: tyberis.com
Icy-MetaData: 1


[http @ 000001d0e7bbe2c0] header='HTTP/1.1 206 Partial Content'
[http @ 000001d0e7bbe2c0] http_code=206
[http @ 000001d0e7bbe2c0] header='Content-Type: video/vnd.dlna.mpeg-tts'
[http @ 000001d0e7bbe2c0] header='Last-Modified: Tue, 10 Nov 2020 19:12:18 GMT'
[http @ 000001d0e7bbe2c0] header='Accept-Ranges: bytes'
[http @ 000001d0e7bbe2c0] header='ETag: "7c6a9e6895b7d61:0"'
[http @ 000001d0e7bbe2c0] header='Server: Microsoft-IIS/10.0'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Origin: *'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization, Range'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Methods: GET,HEAD,OPTIONS,POST,PUT'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Credentials: true'
[http @ 000001d0e7bbe2c0] header='Date: Wed, 11 Nov 2020 15:52:32 GMT'
[http @ 000001d0e7bbe2c0] header='Connection: close'
[http @ 000001d0e7bbe2c0] header='Content-Length: 265473'
[http @ 000001d0e7bbe2c0] header='Content-Range: bytes 6266023-6531495/6531496'
[http @ 000001d0e7bbe2c0] header=''
[tcp @ 000001d0e7c31480] Original list of addresses:
[tcp @ 000001d0e7c31480] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31480] Interleaved list of addresses:
[tcp @ 000001d0e7c31480] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31480] Starting connection attempt to 144.2.127.86 port 80
[tcp @ 000001d0e7c31480] Successfully connected to 144.2.127.86 port 80
[http @ 000001d0e7bbe2c0] request: GET /KFYI-AM_2020-10-30_09-05-26.ts HTTP/1.1
User-Agent: Lavf/58.45.100
Accept: */*
Range: bytes=6281644-
Connection: close
Host: tyberis.com
Icy-MetaData: 1


[http @ 000001d0e7bbe2c0] header='HTTP/1.1 206 Partial Content'
[http @ 000001d0e7bbe2c0] http_code=206
[http @ 000001d0e7bbe2c0] header='Content-Type: video/vnd.dlna.mpeg-tts'
[http @ 000001d0e7bbe2c0] header='Last-Modified: Tue, 10 Nov 2020 19:12:18 GMT'
[http @ 000001d0e7bbe2c0] header='Accept-Ranges: bytes'
[http @ 000001d0e7bbe2c0] header='ETag: "7c6a9e6895b7d61:0"'
[http @ 000001d0e7bbe2c0] header='Server: Microsoft-IIS/10.0'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Origin: *'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization, Range'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Methods: GET,HEAD,OPTIONS,POST,PUT'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Credentials: true'
[http @ 000001d0e7bbe2c0] header='Date: Wed, 11 Nov 2020 15:52:33 GMT'
[http @ 000001d0e7bbe2c0] header='Connection: close'
[http @ 000001d0e7bbe2c0] header='Content-Length: 249852'
[http @ 000001d0e7bbe2c0] header='Content-Range: bytes 6281644-6531495/6531496'
[http @ 000001d0e7bbe2c0] header=''
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
    Last message repeated 88 times
[tcp @ 000001d0e7c31580] Original list of addresses:
[tcp @ 000001d0e7c31580] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31580] Interleaved list of addresses:
[tcp @ 000001d0e7c31580] Address 144.2.127.86 port 80
[tcp @ 000001d0e7c31580] Starting connection attempt to 144.2.127.86 port 80
[tcp @ 000001d0e7c31580] Successfully connected to 144.2.127.86 port 80
[http @ 000001d0e7bbe2c0] request: GET /KFYI-AM_2020-10-30_09-05-26.ts HTTP/1.1
User-Agent: Lavf/58.45.100
Accept: */*
Range: bytes=0-
Connection: close
Host: tyberis.com
Icy-MetaData: 1


[http @ 000001d0e7bbe2c0] header='HTTP/1.1 206 Partial Content'
[http @ 000001d0e7bbe2c0] http_code=206
[http @ 000001d0e7bbe2c0] header='Content-Type: video/vnd.dlna.mpeg-tts'
[http @ 000001d0e7bbe2c0] header='Last-Modified: Tue, 10 Nov 2020 19:12:18 GMT'
[http @ 000001d0e7bbe2c0] header='Accept-Ranges: bytes'
[http @ 000001d0e7bbe2c0] header='ETag: "7c6a9e6895b7d61:0"'
[http @ 000001d0e7bbe2c0] header='Server: Microsoft-IIS/10.0'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Origin: *'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization, Range'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Methods: GET,HEAD,OPTIONS,POST,PUT'
[http @ 000001d0e7bbe2c0] header='Access-Control-Allow-Credentials: true'
[http @ 000001d0e7bbe2c0] header='Date: Wed, 11 Nov 2020 15:52:33 GMT'
[http @ 000001d0e7bbe2c0] header='Connection: close'
[http @ 000001d0e7bbe2c0] header='Content-Length: 6531496'
[http @ 000001d0e7bbe2c0] header='Content-Range: bytes 0-6531495/6531496'
[http @ 000001d0e7bbe2c0] header=''
[mpegts @ 000001d0e7bbd200] stream 0: start_time: 1.4 duration: 1097.98
[mpegts @ 000001d0e7bbd200] format: start_time: 1.4 duration: 1097.98 (estimate from pts) bitrate=47 kb/s
[mpegts @ 000001d0e7bbd200] After avformat_find_stream_info() pos: 0 bytes read:329238 seeks:3 frames:117
Input #0, mpegts, from 'http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts':
  Duration: 00:18:17.98, start: 1.400000, bitrate: 47 kb/s
  Program 1
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100], 117, 1/90000: Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 45 kb/s
Successfully opened the file.
Parsing a group of options: output url out.wav.
Applying option af (set audio filters) with argument aresample=async=1.
Applying option f (force format) with argument wav.
Applying option acodec (force audio codec ('copy' to copy stream)) with argument pcm_s16le.
Applying option ac (set number of audio channels) with argument 2.
Successfully parsed a group of options.
Opening an output file: out.wav.
[file @ 000001d0e7c06200] Setting default whitelist 'file,crypto,data'
Successfully opened the file.
Stream mapping:
  Stream #0:0 -> #0:0 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[mpegts @ 000001d0e7bbd200] Skipping after seek
[mpegts @ 000001d0e7bbd200] SDT:
[mpegts @ 000001d0e7bbd200] tag: 0x48 len=18
[mpegts @ 000001d0e7bbd200] new_program: id=0x0001
[mpegts @ 000001d0e7bbd200] PAT:
[mpegts @ 000001d0e7bbd200] sid=0x1 pid=0x1000
[mpegts @ 000001d0e7bbd200] new_program: id=0x0001
[mpegts @ 000001d0e7bbd200] PMT: len 21
[mpegts @ 000001d0e7bbd200] sid=0x1 sec_num=0/0 version=0 tid=2
[mpegts @ 000001d0e7bbd200] pcr_pid=0x100
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
detected 4 logical cores
[Parsed_aresample_0 @ 000001d0e7be5e80] Setting 'async' to value '1'
[graph_0_in_0_0 @ 000001d0e7beeac0] Setting 'time_base' to value '1/44100'
[graph_0_in_0_0 @ 000001d0e7beeac0] Setting 'sample_rate' to value '44100'
[graph_0_in_0_0 @ 000001d0e7beeac0] Setting 'sample_fmt' to value 'fltp'
[graph_0_in_0_0 @ 000001d0e7beeac0] Setting 'channel_layout' to value '0x3'
[graph_0_in_0_0 @ 000001d0e7beeac0] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
[format_out_0_0 @ 000001d0e7bf0080] Setting 'sample_fmts' to value 's16'
[format_out_0_0 @ 000001d0e7bf0080] Setting 'channel_layouts' to value '0x3'
[AVFilterGraph @ 000001d0e7be6540] query_formats: 4 queried, 9 merged, 0 already done, 0 delayed
[Parsed_aresample_0 @ 000001d0e7be5e80] [SWR @ 000001d0e81bb8c0] Using fltp internally between filters
[Parsed_aresample_0 @ 000001d0e7be5e80] ch:2 chl:stereo fmt:fltp r:44100Hz -> ch:2 chl:stereo fmt:s16 r:44100Hz
Output #0, wav, to 'out.wav':
  Metadata:
    ISFT            : Lavf58.45.100
    Stream #0:0, 0, 1/44100: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
    Metadata:
      encoder         : Lavc58.91.100 pcm_s16le
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 7 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
(...)
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 4 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
timestamp discontinuity for stream #0:0 (id=256, type=audio): 69892061, new offset= -71292061
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
[aac @ 000001d0e7c0ed80] illegal icc
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 7 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
[mpegts @ 000001d0e7bbd200] pid=100 pes_code=0x1c0
[aac @ 000001d0e7c0ed80] ChannelElement 1.0 missing
    Last message repeated 9 times
(...)
size=    5000kB time=00:00:29.02 bitrate=1411.2kbits/s speed=6.11x
video:0kB audio:5000kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001523%
Input file #0 (http://tyberis.com/KFYI-AM_2020-10-30_09-05-26.ts):
  Input stream #0:0 (audio): 625 packets read (174267 bytes); 625 frames decoded (1280000 samples);
  Total: 625 packets (174267 bytes) demuxed
Output file #0 (out.wav):
  Output stream #0:0 (audio): 625 frames encoded (1280000 samples); 625 packets muxed (5120000 bytes);
  Total: 625 packets (5120000 bytes) muxed
625 frames successfully decoded, 0 decoding errors
[AVIOContext @ 000001d0e7c2e280] Statistics: 4 seeks, 22 writeouts
[AVIOContext @ 000001d0e7bc9780] Statistics: 533494 bytes read, 3 seeks```


  


• 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.