[TOC]
To add, update or remove a test file, please update the list below.
Please provide full reference and steps to generate the test file so that anybody can regenerate or update the file in the future.
- When updating the sample offsets and descriptions for tests using mp4 files, it's easiest to use mp4box.js.
- Sample offsets can be copied from the "Sample View" tab after unchecking all but offset and size. Use a multi-line edit mode and clang-format to quickly format entries.
- Description entries can be found under moov.trak.mdia.minf.stbl.stsd in box view.
- avc1.avcC or hvc1.hvcC has an offset, size in the same view. Add 8 to offset and subtract 8 from the size to get the values the tests want.
- If you use ffprobe -show_packets to get sample offsets, you may need to add 4 to each
posvalue. You can tell if you need to by whether or not tests pass.
Generated using MSPaint like a true professional.
Lossless encoding must be used to ensure colors are perfect.
avifenc -l four-colors.png -o four-colors.avif
Lossless encoding must be used to ensure colors are perfect.
ffmpeg -i four-colors.png -lossless 1 -y four-colors.webp
ffmpeg -i four-colors.png -pix_fmt yuv420p four-colors-limited-range-420-8bpc.webp
High quality encoding must be used to ensure colors are perfect.
cp four-colors.png four-colors2.png
gifski -o four-colors.gif four-colors*.png
High quality encoding must be used to ensure colors are perfect.
ffmpeg -i four-colors.png -vf "rotate=PI" four-colors2.png
gifski -o four-colors-flip.gif four-colors*.png
ffmpeg -i four-colors-flip.gif -crf 16 four-colors-flip.avif
avifenc -r l -d 8 -y 420 -s 0 four-colors.png four-colors-limited-range-420-8bpc.avif
avifenc -r l -d 8 -y 422 -s 0 four-colors.png four-colors-limited-range-422-8bpc.avif
avifenc -r l -d 8 -y 444 -s 0 four-colors.png four-colors-limited-range-444-8bpc.avif
avifenc -r f -d 10 -y 444 -s 0 --nclx 9/16/9 four-colors.png four-colors-full-range-bt2020-pq-444-10bpc.avif
Used Sqoosh.app with MozJPEG compression and RGB channels. exiftool was then used to add an orientation marker.
exiftool -Orientation=1 -n four-colors.jpg
Used Sqoosh.app with MozJPEG compression and YUV channels. exiftool was then used to add an orientation marker.
exiftool -Orientation=1 -n four-colors-limited-range-420-8bpc.jpg
Used a custom tool to convert four-colors.avif into a .mp4 file.
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec h264 -tune zerolatency h264.mp4
ffmpeg -i h264.mp4 -codec copy -bsf:v h264_mp4toannexb -f h264 h264.annexb
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec hevc -tag:v hvc1 -tune zerolatency h265.mp4
ffmpeg -i h265.mp4 -codec copy -bsf:v hevc_mp4toannexb -f hevc h265.annexb
sox -n -r 48000 sfx.wav synth 1 sine 480
ffmpeg -i sfx.wav -frames:a 10 -acodec aac -b:a 96K sfx.adts
sox -n -r 48000 sfx.wav synth 1 sine 480
ffmpeg -i sfx.wav -frames:a 10 -acodec libmp3lame -b:a 96K sfx.mp3
sox -n -r 48000 sfx.wav synth 1 sine 480
ffmpeg -i sfx.wav -frames:a 10 sfx.flac
sox -n -r 48000 sfx.wav synth 1 sine 480
ffmpeg -i sfx.wav -frames:a 10 -acodec aac -b:a 96K sfx-aac.mp4
sox -n -r 48000 sfx.wav synth 1 sine 480
for codec in s16 s24 s32 f32
do
# Add "le" suffix
ffmpeg -i sfx.wav -frames:a 10 -acodec pcm_"$codec"le sfx-pcm-$codec.wav
done
ffmpeg -i sfx.wav -frames:a 10 -acodec pcm_u8 sfx-pcm-u8.wav
for codec in alaw mulaw
do
ffmpeg -i sfx.wav -frames:a 10 -acodec pcm_$codec sfx-$codec.wav
done
sox -n -r 48000 sfx.wav synth 1 sine 480
ffmpeg -i sfx.wav -frames:a 10 -acodec libopus -b:a 96K sfx-opus.ogg
### sfx-vorbis.ogg
sox -n -r 48000 sfx.wav synth 1 sine 480 ffmpeg -i sfx.wav -frames:a 10 -acodec libvorbis -b:a 96K sfx-vorbis.ogg
### av1.mp4
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec libaom-av1 av1.mp4
### vp8.webm
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec vp8 vp8.webm
### vp9.mp4
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec vp9 vp9.mp4