直播视频的下载&视频去&压缩&文本识别
“C:\Program Files (x86)\Google\Chrome\Application\chrome.exe” –disable-features=LockProfileCookieDatabase
yt-dlp -f best -o output.mp4 –retries infinite –file-access-retries infinite –fragment-retries infinite –extractor-retries infinite –skip-unavailable-fragments “hls/m3u8”
ffmpeg -i "output.mp4" -b:a 64k -acodec mp3 -ar 44100 -ac 1 "output.mp3"
ffmpeg -i "in.mp4" -c:v libx264 -preset veryslow -crf 18 -c:acopy "output.mp4"
| 源 | 文件大小 | 缩减比率 |
|---|---|---|
| crf = 18 | 46.3 | 21% |
| crf = 19 | 36.7 | 33% |
| crf = 20 | 31.2 | 43% |
| crf = 28 | 26.5 | 83% |
| crf = 51 | 1.25 | 97% |