[FFmpeg-trac] #11462(undetermined:new): Cannot embed .scc file into .mp4 using -c:s copy

[FFmpeg]

#11462: Cannot embed .scc file into .mp4 using -c:s copy
-------------------------------------+-------------------------------------
             Reporter:  Zach         |                     Type:
                                     |  enhancement
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 ffmpeg.exe" -i video.mp4 -i CaptionMaker.scc -map 0:v -map 0:a -map 1 -c:v
 copy -c:a copy -c:s copy output.mp4

 ffmpeg version 2025-02-06-git-6da82b4485-full_build-www.gyan.dev Copyright
 (c) 2000-2025 the FFmpeg developers
   built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
   configuration: --enable-gpl --enable-version3 --enable-static --disable-
 w32threads --disable-autodetect --enable-fontconfig --enable-iconv
 --enable-gnutls --enable-lcms2 --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-libdvdnav --enable-libdvdread
 --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-
 libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc
 --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode
 --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp
 --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve
 --enable-libxvid --enable-libaom --enable-libjxl --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-dxva2 --enable-d3d11va --enable-d3d12va
 --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-
 vaapi --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-liblc3
 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-
 libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-
 libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
   libavutil      59. 56.100 / 59. 56.100
   libavcodec     61. 32.101 / 61. 32.101
   libavformat    61.  9.106 / 61.  9.106
   libavdevice    61.  4.100 / 61.  4.100
   libavfilter    10.  9.100 / 10.  9.100
   libswscale      8. 13.100 /  8. 13.100
   libswresample   5.  4.100 /  5.  4.100
   libpostproc    58.  4.100 / 58.  4.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from video.mp4:
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42mp41
     creation_time   : 2025-02-09T19:21:47.000000Z
   Duration: 00:28:31.71, start: 0.000000, bitrate: 18300 kb/s
   Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661),
 yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 17979 kb/s, 29.97 fps,
 29.97 tbr, 30k tbn (default)
     Metadata:
       creation_time   : 2025-02-09T19:21:47.000000Z
       handler_name    : ?Mainconcept Video Media Handler
       vendor_id       : [0][0][0][0]
       encoder         : AVC Coding
   Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 317 kb/s (default)
     Metadata:
       creation_time   : 2025-02-09T19:21:47.000000Z
       handler_name    : #Mainconcept MP4 Sound Media Handler
       vendor_id       : [0][0][0][0]
 Input #1, scc, from CaptionMaker.scc:
   Duration: N/A, bitrate: N/A
   Stream #1:0: Subtitle: eia_608 (cc_dec)
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
   Stream #1:0 -> #0:2 (copy)
 [mp4 @ 000001998ad1f040] Could not find tag for codec eia_608 in stream
 #2, codec not currently supported in container
 [out#0/mp4 @ 000001998a703380] Could not write header (incorrect codec
 parameters ?): Invalid argument
 Conversion failed!
 }}}

 using flag -c:s copy fails, but c:s mov_text creates a file but modifies
 the stream to a subtitles stream instead of captions.

 Please add the required eia-608 or cea-608 codec to allow embedding of
 captions into mp4 files.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11462>
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