[FFmpeg-user] set metadata in a jpg image

[Paul B Mahol]

On Tue, Feb 23, 2021 at 10:59 AM Michael Koch <astroelectronic at t-online.de>
wrote:

> Hello,
>
> I want to set two exif tags in a *.jpg image, so that this image is
> recognized by Facebook as a spherical 360 image. This can be done with
> exiftool:
>
> exiftool -overwrite_original -make="Ricoh" -model="Ricoh THETA S" test.jpg
>
> Is it also possible to do the same thing with FFmpeg? This would
> simplify things, because the image is anyway created by FFmpeg and
> perhaps it can all be done in one command line.
> I did try this command, but the metadata isn't written to the file:
>

Nope, There is no exif encoding support.


>
> ffmpeg -i test.jpg -metadata make="Ricoh" -y test2.jpg
>

That is for container metadata, while you want to write frame metadata.



>
> The console output is below.
>
> Thanks,
> Michael
>
>
> C:\Users\astro\Desktop\moon>ffmpeg -i test.jpg -metadata make="Ricoh" -y
> test2.jpg
> ffmpeg version 2021-02-13-git-d5d6751a55-essentials_build-www.gyan.dev
> Copyright (c) 2000-2021 the FFmpeg developers
>    built with gcc 10.2.0 (Rev6, 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-zlib --enable-libsrt --enable-libssh
> --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp
> --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom
> --enable-libopenjpeg --enable-libvpx --enable-libass
> --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-libgme
> --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame
> --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm
> --enable-libopencore-amrnb --enable-libopus --enable-libspeex
> --enable-libvorbis --enable-librubberband
>    libavutil      56. 65.100 / 56. 65.100
>    libavcodec     58.123.100 / 58.123.100
>    libavformat    58. 67.100 / 58. 67.100
>    libavdevice    58. 11.103 / 58. 11.103
>    libavfilter     7.106.100 /  7.106.100
>    libswscale      5.  8.100 /  5.  8.100
>    libswresample   3.  8.100 /  3.  8.100
>    libpostproc    55.  8.100 / 55.  8.100
> Input #0, image2, from 'test.jpg':
>    Duration: 00:00:00.04, start: 0.000000, bitrate: 103504 kb/s
>    Stream #0:0: Video: mjpeg (Baseline), yuvj444p(pc,
> bt470bg/unknown/unknown), 6000x3000 [SAR 1:1 DAR 2:1], 25 fps, 25 tbr,
> 25 tbn, 25 tbc
> Stream mapping:
>    Stream #0:0 -> #0:0 (mjpeg (native) -> mjpeg (native))
> Press [q] to stop, [?] for help
> Output #0, image2, to 'test2.jpg':
>    Metadata:
>      make            : Ricoh
>      encoder         : Lavf58.67.100
>    Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown,
> progressive), 6000x3000 [SAR 1:1 DAR 2:1], q=2-31, 200 kb/s, 25 fps, 25 tbn
>      Metadata:
>        encoder         : Lavc58.123.100 mjpeg
>      Side data:
>        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
> frame=    1 fps=0.0 q=8.6 Lsize=N/A time=00:00:00.04 bitrate=N/A
> speed=0.267x
> video:505kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: unknown
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