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38 lines
2.0 KiB
Bash
Executable File
38 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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# Regenerates the media test fixtures. Every input is synthesised here (a 440 Hz sine and
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# a moving colour gradient), so the files are contributor-original (CC0-1.0); see
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# ATTRIBUTION.md. The encoders only transcode our own signal. WAV and AIFF fixtures are written
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# by the tests themselves.
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set -e
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cd "$(dirname "$0")"
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FF="ffmpeg -hide_banner -loglevel error -y"
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TONE="-f lavfi -i sine=frequency=440:sample_rate=48000:duration=0.5"
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TONE44="-f lavfi -i sine=frequency=440:sample_rate=44100:duration=0.5"
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META="-map_metadata -1 -fflags +bitexact -flags:v +bitexact -flags:a +bitexact"
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$FF $TONE44 -c:a libmp3lame -b:a 64k $META tone.mp3
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$FF $TONE44 -c:a aac -b:a 64k $META tone.m4a
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$FF $TONE44 -c:a aac -b:a 64k $META -f adts tone.aac
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$FF $TONE44 -c:a alac $META tone-alac.m4a
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$FF $TONE44 -c:a flac $META tone.flac
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$FF $TONE44 -c:a vorbis -strict -2 -ac 2 $META tone.ogg
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$FF $TONE -c:a libopus -b:a 32k $META tone.opus
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$FF $TONE44 -c:a wmav2 -b:a 64k $META tone.wma
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# Video: 64x48 (AV1: 64x64), 10 fps, 6 frames of our own moving colour gradient (raw RGB from
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# python3 below), so every pixel is contributor-original.
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frames() {
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python3 -c "
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import sys
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w, h = $1, $2
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for f in range(6):
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sys.stdout.buffer.write(bytes(v for y in range(h) for x in range(w) for v in ((x * 4 + f * 20) % 256, (y * 5) % 256, (f * 40) % 256)))
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" > "$3"
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}
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frames 64 48 /tmp/deckcraft-fixture-64x48.rgb
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frames 64 64 /tmp/deckcraft-fixture-64x64.rgb
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VID="-f rawvideo -pix_fmt rgb24 -s 64x48 -r 10 -i /tmp/deckcraft-fixture-64x48.rgb"
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$FF $VID $TONE44 -c:v libx264 -pix_fmt yuv420p -g 5 -bf 2 -c:a aac -b:a 48k -shortest $META clip-h264.mp4
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$FF $VID -c:v libx264 -pix_fmt yuv420p -g 5 -bf 0 $META clip-h264.mov
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$FF $VID -c:v libx265 -pix_fmt yuv420p -x265-params log-level=error:keyint=5 -tag:v hvc1 $META clip-hevc.mp4
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$FF $VID $TONE -c:v libvpx-vp9 -pix_fmt yuv420p -g 5 -b:v 100k -c:a libopus -b:a 32k -shortest $META clip-vp9.webm
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$FF -f rawvideo -pix_fmt rgb24 -s 64x64 -r 10 -i /tmp/deckcraft-fixture-64x64.rgb -c:v libsvtav1 -pix_fmt yuv420p -g 5 -svtav1-params loglevel=0 $META clip-av1.mkv
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