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ffmpeg_notes [2019-08-02 14:05] – nik | ffmpeg_notes [2021-02-07 10:00] – nik | ||
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====video -> image sequence==== | ====video -> image sequence==== | ||
+ | |||
+ | ...timelapsed (1 frame every 4 seconds) | ||
'' | '' | ||
+ | |||
+ | ==== concat ==== | ||
+ | |||
+ | a list of files (e.g. named files.txt)\\ | ||
+ | '' | ||
+ | '' | ||
+ | |||
+ | then...\\ | ||
+ | '' | ||
+ | |||
+ | also -> https:// | ||
====ffmpeg filters | ====ffmpeg filters | ||
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'' | '' | ||
+ | ====extract audio from mp4==== | ||
+ | |||
+ | '' | ||
====avoid audio/video reencode==== | ====avoid audio/video reencode==== | ||
Line 142: | Line 158: | ||
====etc==== | ====etc==== | ||
+ | * tuning x265 output -> http:// | ||
* further examples -> https:// | * further examples -> https:// | ||
* An ffmpeg and SDL Tutorial or How to Write a Video Player in Less Than 1000 Lines (2015) http:// | * An ffmpeg and SDL Tutorial or How to Write a Video Player in Less Than 1000 Lines (2015) http:// | ||
* various examples -> https:// | * various examples -> https:// | ||