1.对视频进行压缩 ffmpeg -i "900.mp4" -vcodec libx264 -preset veryslow -profile:v high -level:v 4.1 -x264-params keyint=80:min-keyint=10 -pix_fmt yuv420p -b:v 201k -s 1280x720 -r 15 -pass 1 -acodec libfaac -ac 2 -ab 64k -ar 44100 -f mp4 NUL -y && ffmpeg -i "900.mp4" -vcodec libx264 -preset veryslow -profile:v high -level:v 4.1 -x264-params keyint=80:min-keyint=10 -pix_fmt yuv420p -b:v 201k -s 1280x720 -r 15 -pass 2 -acodec libfaac -ac 2 -ab 128k -ar 44100 "test701.mp4"
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需要对视频执行两遍，进行压缩 ffmpeg -i "video_mock-up_dr3.mp4" -vcodec libx264 -preset veryslow -profile:v high -level:v 4.1 -x264-params keyint=230:min-keyint=25 -pix_fmt yuv420p -b:v 1001k -s 1920x1080 -r 25 -pass 1 -f mp4 NUL -y && ffmpeg -i "video_mock-up_dr3.mp4"" -vcodec libx264 -preset veryslow -profile:v high -level:v 4.1 -x264-params keyint=230:min-keyint=25 -pix_fmt yuv420p -b:v 1001k -s 1920x1080 -r 25 -pass 2 "20005.mp4"
ffmpeg -i "900.mp4" -vcodec libx264 -preset veryslow -profile:v high -level:v 4.1 -x264-params keyint=230:min-keyint=25 -pix_fmt yuv420p -b:v 201k -s 1280x720 -r 25 -pass 1 -acodec libfaac -ac 2 -ab 64k -ar 44100 -f mp4 NUL -y && ffmpeg -i "900.mp4" -vcodec libx264 -preset veryslow -profile:v high -level:v 4.1 -x264-params keyint=230:min-keyint=25 -pix_fmt yuv420p -b:v 201k -s 1280x720 -r 25 -pass 2 -acodec libfaac -ac 2 -ab 64k -ar 44100 "25_201.mp4"