[FEAT] Add support for JpegXL and Jpeg2000 decoding/encoding

[iyesin]

Is this a new feature request?

• I have searched the existing issues

Wanted change

I wanted to use this docker image to validate my benchmarks on newer (then supplied in Debian 12) version of ffmpeg and librav1e. The source files for a benchmark are 12bpp lossless samples in JpegXL (.jxl) and Jpeg2000 (.jp2) formats.

Reason for change

Unfortunately, benchmark script failed with a following error:

[image2 @ 0x5654dfbd87c0] Could not find codec parameters for stream 0 (Video: jpegxl, none): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #1, image2, from 'DSC_0%03d.jxl':
  Duration: 00:00:02.40, start: 0.000000, bitrate: N/A
  Stream #1:0: Video: jpegxl, none, 25 fps, 25 tbr, 25 tbn
[vist#1:0/jpegxl @ 0x5654dfbd9640] Decoding requested, but no decoder found for: jpegxl
Error opening output file bench_02_hd_av1_rav1_speed5_10bpp.mp4.
Error opening output files: Invalid argument

I tried to include apt update && apt -y install libjxl0.7 as a command before executing ffmpeg itself, but the result was the same.

Proposed code change

Add pre-built most recent version of JpegXL (library and headers) to a build step.

# Add Luca Versari's (@veluca93) apt repo and the key for it.
# Slightly re-worked instruction from https://artifacts.lucaversari.it/info.txt
gpg --homedir /tmp --no-default-keyring --keyring /usr/share/keyrings/libjxl.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys BA53E543B669CE5743F9E4E1BD565EDA9BB685E6
echo "deb [signed-by=/usr/share/keyrings/libjxl.gpg] https://artifacts.lucaversari.it/libjxl/libjxl/latest/deb/$(lsb_release -cs) /" > /etc/apt/sources.list.d/lijxl.list
apt update
apt install -y libjxl-dev

Add pre-built most recent version of JpegXL library to a runtime step.

gpg --homedir /tmp --no-default-keyring --keyring /usr/share/keyrings/libjxl.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys BA53E543B669CE5743F9E4E1BD565EDA9BB685E6
echo "deb [signed-by=/usr/share/keyrings/libjxl.gpg] https://artifacts.lucaversari.it/libjxl/libjxl/latest/deb/$(lsb_release -cs) /" > /etc/apt/sources.list.d/lijxl.list
apt update
apt install -y libjxl

Add flags for ffmpeg

…
    --enable-cuvid \
+   --enable-decoder=jpeg2000 \
+   --enable-encoder=jpeg2000 \
    --enable-ffprobe \
…
    --enable-libharfbuzz \
+   --enable-libjxl \
    --enable-libkvazaar \
…

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[iyesin]

Alternative way of installing libjxl from source described here https://github.com/libjxl/libjxl/blob/main/BUILDING.md