答案 0 :(得分:2)
使用以下命令,您可以创建两个流,然后,您可以将它们放入采用集而不是单独的流中:
ffmpeg -i $INPUT.mp4 -map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 \
-b:v:0 250k -filter:v:0 "scale=-2:240" -profile:v:0 baseline -b:v:1 \
750k -filter:v:1 "scale=-2:480" -profile:v:1 main -use_timeline 1 \
-use_template 1 -window_size 5 -adaptation_sets "id=0,streams=v \
id=1,streams=a" -f dash $OUTPUT.mpd