[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 any people 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 -vcodec libaom-av1 -crf 16 four-colors-flip.mp4
mp4box -add-image ref:primary:tk=1:samp=1 -ab avis -ab avif -ab miaf -brand avis four-colors-flip.mp4 -out four-colors-flip.avif
mp4box -edits 1=r 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 pcm_alaw sfx-alaw.wav
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 -acodec aac -b:a 96K sfx-aac.mp4
sox -n -r 48000 sfx.wav synth 1 sine 480
ffmpeg -i sfx.wav -frames:a 10 -acodec pcm_mulaw sfx-mulaw.wav
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
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec libaom-av1 av1.mp4
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec vp8 vp8.webm
ffmpeg -f lavfi -i testsrc=rate=10:n=1 -t 1 -pix_fmt yuv420p -vcodec vp9 vp9.mp4