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• ffmpeg : set the language of an audio stream

  22 juillet 2023, par Steven Van Ingelgem

  I have 3 files : video.mp4, audionl.mp4 & audioeng.mp4.
I tried adding them all together in 1 output.mp4 file like this :

  



  ffmpeg -y -i video.mp4 -i audionl.mp4 -i audioeng.mp4  -map 0:v -map 1:a -map 2:a -metadata:s:a:0 language=nl -metadata:s:a:0 title="NL" -metadata:s:a:1 language=eng  -metadata:s:a:1 title="ENG" -acodec copy -bsf:a aac_adtstoasc -vcodec copy  -movflags faststart output.mp4 2>&1


  



  This is the output I see from ffmpeg :

  



  ffmpeg version 2.6.9 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.9.2 (Debian 4.9.2-10)
  configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-vaapi --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
  libavutil      54. 20.100 / 54. 20.100
  libavcodec     56. 26.100 / 56. 26.100
  libavformat    56. 25.101 / 56. 25.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 11.102 /  5. 11.102
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: isomavc1mp42dash
    creation_time   : 2017-06-04 06:35:06
  Duration: 00:20:52.80, start: 0.000000, bitrate: 1172 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1168 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2017-06-04 06:35:06
      handler_name    : VideoHandler
      encoder         : VideoHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'audionl.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: isomM4A mp42dash
    creation_time   : 2017-06-04 06:35:06
  Duration: 00:20:52.80, start: 0.000000, bitrate: 96 kb/s
    Stream #1:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 93 kb/s (default)
    Metadata:
      creation_time   : 2017-06-04 06:35:06
      handler_name    : SoundHandler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'audioeng.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: isomM4A mp42dash
    creation_time   : 2017-06-04 06:35:06
  Duration: 00:20:52.78, start: 0.000000, bitrate: 64 kb/s
    Stream #2:0(eng): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 62 kb/s (default)
    Metadata:
      creation_time   : 2017-06-04 06:35:06
      handler_name    : SoundHandler
Output #0, mp4, to 'output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: isomavc1mp42dash
    encoder         : Lavf56.25.101
    Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 1168 kb/s, 25 fps, 25 tbr, 90k tbn, 90k tbc (default)
    Metadata:
      creation_time   : 2017-06-04 06:35:06
      handler_name    : VideoHandler
      encoder         : VideoHandler
    Stream #0:1(nl): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 93 kb/s (default)
    Metadata:
      creation_time   : 2017-06-04 06:35:06
      handler_name    : SoundHandler
      title           : NL
    Stream #0:2(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 62 kb/s (default)
    Metadata:
      creation_time   : 2017-06-04 06:35:06
      handler_name    : SoundHandler
      title           : ENG
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #1:0 -> #0:1 (copy)
  Stream #2:0 -> #0:2 (copy)
Press [q] to stop, [?] for help
[mp4 @ 0xbb1320] Starting second pass: moving the moov atom to the beginning of the file
frame=31320 fps=20993 q=-1.0 Lsize=  204217kB time=00:20:52.79 bitrate=1335.4kbits/s
video:178734kB audio:23867kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.797284%


  



  As you can see in there : "Stream #0:0(eng)", "Stream #0:1(nl)" & "Stream #0:2(eng)".
So that looks fine.

  



  But when I open it in VLC, I see under Audio tracks :
NL - [English]
ENG - [English]

  



  So I went back to check on ffmpeg with "ffmpeg -i output.mp4" :

  



  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.25.101
  Duration: 00:20:52.80, start: 0.000000, bitrate: 1335 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1168 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 93 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
    Stream #0:2(eng): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 62 kb/s (default)
    Metadata:
      handler_name    : SoundHandler


  



  And here they are English again...

  



  Afterwards I tried this :

  



  ffmpeg -y -i audionl.mp4 -c:a copy -metadata:s:a:0 language=nl output.mp4


  



  But also that failed to set the correct language on the output file...
I'm at a loss here and hope someone can help me set these languages correctly.

  



  Thanks a lot !

  


• FFMPEG : FATAL error, file duration too long for timebase ?

  26 février 2024, par clx

  I want to add a subtitle track on a ProRes files with ffmpeg command on Windows :

  


  ffmpeg.exe  -i "X:\Test\Tokyo01.mov" -i "X:\Test\SubtitleEN.srt" -f mov -c:v copy -c:a copy -c:s mov_text -map 0:v -map 0:a -map "1:0" "-metadata:s:s:0" "language=EN" "-metadata:s:s:0" "handler_name=English"  "-metadata:s:s:0" "title=English" -y "X:\Test\Tokyo01_WithSub.mov" 


  


  I have a fatal error at the end :

  


  ...
FATAL error, file duration too long for timebase, this file will not be1737.7kbits/s speed=0.979x
playable with QuickTime. Choose a different timebase with -video_track_timescale or a different container format
...


  


  Source file looks good with FFProbe :

  


  
[STREAM]
index=0
codec_name=prores
codec_long_name=Apple ProRes (iCodec Pro)
profile=HQ
codec_type=video
codec_time_base=15139/363340
codec_tag_string=apch
codec_tag=0x68637061
width=3996
height=2160
coded_width=3996
coded_height=2160
closed_captions=0
has_b_frames=0
sample_aspect_ratio=N/A
display_aspect_ratio=N/A
pix_fmt=yuv422p10le
level=-99
color_range=tv
color_space=unknown
color_transfer=unknown
color_primaries=unknown
chroma_location=unspecified
field_order=unknown
timecode=N/A
refs=1
id=N/A
r_frame_rate=24/1
avg_frame_rate=363340/15139
time_base=1/90000
start_pts=0
start_time=0.000000
duration_ts=340627500
duration=3784.750000
bit_rate=656235296
max_bit_rate=N/A
bits_per_raw_sample=10
nb_frames=90835


  


  The complete FFmpeg return console :

  


  ffmpeg version 2023-09-04-git-f8503b4c33-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, 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-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --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      58. 19.100 / 58. 19.100
  libavcodec     60. 25.100 / 60. 25.100
  libavformat    60. 11.100 / 60. 11.100
  libavdevice    60.  2.101 / 60.  2.101
  libavfilter     9. 11.100 /  9. 11.100
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'X:\Test\Tokyo01.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf58.76.100
  Duration: 01:03:04.79, start: 0.000000, bitrate: 663143 kb/s
  Stream #0:0[0x1]: Video: prores (HQ) (apch / 0x68637061), yuv422p10le, 3996x2160, 656235 kb/s, 24 fps, 24 tbr, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : FFMP
  Stream #0:1[0x2]: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 5.1, s32 (24 bit), 6912 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
[srt @ 000001bc0ec608c0] UTF16 is automatically converted to UTF8, do not specify a character encoding
Input #1, srt, from 'X:\Test\SubtitleEN.srt':
  Duration: N/A, bitrate: N/A
  Stream #1:0: Subtitle: subrip
Output #0, mov, to 'X:\Test\Tokyo01_WithSub.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf60.11.100
  Stream #0:0: Video: prores (HQ) (apch / 0x68637061), yuv422p10le, 3996x2160, q=2-31, 656235 kb/s, 24 fps, 24 tbr, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : FFMP
  Stream #0:1: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 5.1, s32 (24 bit), 6912 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
  Stream #0:2(EN): Subtitle: mov_text (text / 0x74786574)
    Metadata:
      handler_name    : English
      title           : English
      encoder         : Lavc60.25.100 mov_text
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
  Stream #1:0 -> #0:2 (subrip (srt) -> mov_text (native))
Press [q] to stop, [?] for help
FATAL error, file duration too long for timebase, this file will not be1737.7kbits/s speed=0.979x
playable with QuickTime. Choose a different timebase with -video_track_timescale or a different container format
[out#0/mov @ 000001bc0e847340] video:303184287kB audio:3193418kB subtitle:9kB other streams:0kB global headers:0kB muxing overhead: 0.000585%
frame=90834 fps= 23 q=-1.0 Lsize=306379507kB time=01:03:04.77 bitrate=663147.3kbits/s speed=0.979x



  


  I don't find documentation for mentionned command "-video_track_timescale" to change timescale (here 1/90000 ).
I don't understand the problem ??

  


• ffmpeg subtitles to overlay by language

  21 mars 2017, par Milan Čížek

  my stream looks like this :

  Input #0, mpegts, from 'udp://@...':
  
    Duration: N/A, start: 19316.897278, bitrate: N/A
  
    Program 504
  
      Stream #0:0[0x13b1], 125, 1/90000: Video: mpeg2video (Main), 1 reference frame ([2][0][0][0] / 0x0002), yuv420p(tv, top first, left), 720x576 [SAR 64:45 DAR 16:9], 0/1, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x13b2], 208, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 256 kb/s
  
      Stream #0:2[0x1541](srp), 4, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:3[0x1542](slv), 3, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:4[0x1543](hrv), 4, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:5[0x1544](cze), 3, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:6[0x1545](hun), 4, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:7[0x1546](ron), 3, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:8[0x1547](alb), 4, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:9[0x1548](bul), 5, 1/90000: Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:10[0x13b9](eng), 127, 1/90000: Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)

  I try to add english subtitles into output video, but number of subtitles/languages is variable in time. I need select required subtitles by language. How can I do ? Here is my not working example. Thank you.

  ffmpeg -i "udp://@..." -map s:eng -sn -map v:0 -profile:v baseline
  
  -c:v libx264 -b:v 1500k -maxrate 2200k -filter_complex [0:v][0:s]overlay -c:a libfdk_aac -b:a 128k /test.ts