sh FFMpeg示例比特率更改器脚本

Posted 2021-05-07

$ ffmpeg -f qtkit -video_device_index 0 -i "" -f vob - | ./fff.sh -

#!/usr/bin/env bash

vidres=704x396
# vidres=720x540
vidres=320x240

ffmpeg -i $1 \
    -vcodec mpeg2video  -pix_fmt yuv420p -me_method epzs -threads 4 \
    -r 29.97 -g 45 -bf 2 -trellis 2 -cmp 2 -subcmp 2 -s $vidres -b 4900k -bt 600k \
    -acodec mp2 -ac 2 -ab 192k -ar 44100 \
    -async 1 \
    -y \
    -f vob -