[FFmpeg-trac] #8129(undetermined:new): Failed to set encoder metadata for FLV output

[FFmpeg]

#8129: Failed to set encoder metadata for FLV output
-------------------------------------+-------------------------------------
             Reporter:  longkas      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by longkas):

 Replying to [comment:2 stevenliu]:

 Thank you, so if the encoder metadata is reserved to protect the ffmpeg
 copyright, then it's not a bug then.

 > Do you mean you want remove ffmpeg copyright information?
 > I think you should add your self encoder information like this
 >
 > {{{
 > StevenLiu:ffmpeg StevenLiu$ ffmpeg -i input.mp4 -c copy -f flv -metadata
 encoder_private=myenc output.flv
 > ffmpeg version N-94165-g6e988b75df Copyright (c) 2000-2019 the FFmpeg
 developers
 >   built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
 >   configuration: --enable-libass --enable-opengl --enable-libx264
 --enable-libmp3lame --enable-gpl --enable-nonfree --prefix=/usr/local
 --enable-libtesseract --enable-libspeex --enable-libfreetype --enable-
 libfontconfig --enable-libfdk-aac --enable-videotoolbox --enable-libxml2
 --enable-librsvg --enable-libvmaf --enable-version3 --disable-stripping
 --disable-optimizations
 >   libavutil      56. 30.100 / 56. 30.100
 >   libavcodec     58. 53.101 / 58. 53.101
 >   libavformat    58. 28.101 / 58. 28.101
 >   libavdevice    58.  7.100 / 58.  7.100
 >   libavfilter     7. 56.100 /  7. 56.100
 >   libswscale      5.  4.101 /  5.  4.101
 >   libswresample   3.  4.100 /  3.  4.100
 >   libpostproc    55.  4.100 / 55.  4.100
 > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
 >   Metadata:
 >     major_brand     : isom
 >     minor_version   : 512
 >     compatible_brands: isomiso2avc1mp41
 >     encoder         : Lavf58.28.101
 >   Duration: 00:05:00.10, start: 0.000000, bitrate: 20142 kb/s
 >     Chapter #0:0: start 0.000000, end 300.096000
 >     Metadata:
 >       title           :
 >     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 20015 kb/s, 25 fps, 25 tbr, 12800 tbn, 25600
 tbc (default)
 >     Metadata:
 >       handler_name    : VideoHandler
 >     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 128 kb/s (default)
 >     Metadata:
 >       handler_name    : Sound Media Handler
 >     Stream #0:2(eng): Data: bin_data (text / 0x74786574)
 >     Metadata:
 >       handler_name    : SubtitleHandler
 > File 'output.flv' already exists. Overwrite ? [y/N] y
 > Output #0, flv, to 'output.flv':
 >   Metadata:
 >     major_brand     : isom
 >     minor_version   : 512
 >     compatible_brands: isomiso2avc1mp41
 >     encoder_private : myenc
 >     encoder         : Lavf58.28.101
 >     Chapter #0:0: start 0.000000, end 300.096000
 >     Metadata:
 >       title           :
 >     Stream #0:0(und): Video: h264 (High) ([7][0][0][0] / 0x0007),
 yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 20015 kb/s, 25 fps, 25 tbr,
 1k tbn, 12800 tbc (default)
 >     Metadata:
 >       handler_name    : VideoHandler
 >     Stream #0:1(und): Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000
 Hz, stereo, fltp, 128 kb/s (default)
 >     Metadata:
 >       handler_name    : Sound Media Handler
 > Stream mapping:
 >   Stream #0:0 -> #0:0 (copy)
 >   Stream #0:1 -> #0:1 (copy)
 > Press [q] to stop, [?] for help
 > frame=  693 fps=275 q=-1.0 Lsize=   76097kB time=00:00:27.69
 bitrate=22512.2kbits/s speed=  11x
 > video:75627kB audio:435kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: 0.046850%
 > StevenLiu:ffmpeg StevenLiu$ ffmpeg -i output.flv
 > ffmpeg version N-94165-g6e988b75df Copyright (c) 2000-2019 the FFmpeg
 developers
 >   built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
 >   configuration: --enable-libass --enable-opengl --enable-libx264
 --enable-libmp3lame --enable-gpl --enable-nonfree --prefix=/usr/local
 --enable-libtesseract --enable-libspeex --enable-libfreetype --enable-
 libfontconfig --enable-libfdk-aac --enable-videotoolbox --enable-libxml2
 --enable-librsvg --enable-libvmaf --enable-version3 --disable-stripping
 --disable-optimizations
 >   libavutil      56. 30.100 / 56. 30.100
 >   libavcodec     58. 53.101 / 58. 53.101
 >   libavformat    58. 28.101 / 58. 28.101
 >   libavdevice    58.  7.100 / 58.  7.100
 >   libavfilter     7. 56.100 /  7. 56.100
 >   libswscale      5.  4.101 /  5.  4.101
 >   libswresample   3.  4.100 /  3.  4.100
 >   libpostproc    55.  4.100 / 55.  4.100
 > Input #0, flv, from 'output.flv':
 >   Metadata:
 >     major_brand     : isom
 >     minor_version   : 512
 >     compatible_brands: isomiso2avc1mp41
 >     encoder_private : myenc
 >     encoder         : Lavf58.28.101
 >   Duration: 00:00:27.74, start: 0.000000, bitrate: 22471 kb/s
 >     Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x1080
 [SAR 1:1 DAR 16:9], 20015 kb/s, 25 fps, 25 tbr, 1k tbn
 >     Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
 > At least one output file must be specified
 > StevenLiu:ffmpeg StevenLiu$
 > }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8129#comment:3>
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