ffmpeg-filter_complex – 业余语言练习

ffmpeg-filter_complex

#ffmpeg -i bg.jpg -i 0-5-eq.jpg -filter_complex “[1:v] scale=552:23[logo];[0:v][logo]overlay=x=3:y=0” bg-0-5.jpg &&
#ffmpeg -i bg-2-0-5.jpg -vf “eq=contrast=2” -f image2 bg-2-0-5-eq.jpg &&
ffmpeg -i ffmpeg-A4.jpg -i ffmpeg-A4-25×30.jpg -filter_complex “[1:v] scale=558:781[logo];[0:v][logo]overlay=x=18:y=30” ffmpeg-A4-25×30-0.jpg &&
ffmpeg -i ffmpeg-A4-25×30-0.jpg -vf “eq=contrast=2” -f image2 ffmpeg-A4-25×30-true.jpg &&
exit
ffmpeg -i test_0.mp3 -i test_1.mp3 -filter_complex “[0:a]aresample=44100,aformat=fltp[a1];[1:a]aresample=44100,aformat=fltp,volume=1[a2];[a1][a2]amix” ff_amix.mp3
ffmpeg -i test.mp4 -i ship.mp3 “[0:a]aresample=44100,aformat=fltp[a1];[1:a]aresample=44100, aformat=fltp,volume=0.5[a2];[a1][a2]amix” ff_amix.mp4

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Categorized as ffmpeg

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