User:Randen/FFmpeg

Cool Commands

Save a live stream to disk ffmpeg -i "http://example.com/some/file.m3u8" -c copy filename.mp4

Make a vod from an existing video

ffmpeg -i file.mp4 -f hls \
       -hls_time 2 \
       -hls_playlist_type vod \
       -hls_flags independent_segments \
       -hls_segment_type mpegts \
       -hls_segment_filename %v/seg-%03d.ts \
       -master_pl_name master.m3u8 \
       %v/index.m3u8

Make a vod from an existing video and resize into multiple resolutions

ffmpeg -i file.mp4 \ 
       -filter_complex \
       "[0:v]split=3[v1][v2][v3]; \
       [v1]copy[v1out]; [v2]scale=w=1280:h=720[v2out]; [v3]scale=w=640:h=360[v3out]" \
       -map [v1out] -c:v:0 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:0 5M -maxrate:v:0 5M -minrate:v:0 5M -bufsize:v:0 10M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
       -map [v2out] -c:v:1 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:1 3M -maxrate:v:1 3M -minrate:v:1 3M -bufsize:v:1 3M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
       -map [v3out] -c:v:2 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:2 1M -maxrate:v:2 1M -minrate:v:2 1M -bufsize:v:2 1M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
       -map a:0 -c:a:0 aac -b:a:0 96k -ac 2 \
       -map a:0 -c:a:1 aac -b:a:1 96k -ac 2 \
       -map a:0 -c:a:2 aac -b:a:2 48k -ac 2 \
       -f hls \
       -hls_time 2 \
       -hls_playlist_type vod \
       -hls_flags independent_segments \
       -hls_segment_type mpegts \
       -hls_segment_filename %v/seg-%03d.ts \
       -master_pl_name master.m3u8 \
       -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p v:2,a:2,name:480p" %v/index.m3u8

Remux an mkv file into an mp4 file and remove subtitle track ffmpeg -i file.mkv -y -map 0 -c:v copy -c:a aac -sn out.mp4