wanghan519

搜了一圈这个可以，据说是"MP4 videos using H.264 need to have a dimensions that are divisible by 2."

ffmpeg -i b.gif -i a.mp3 -shortest -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -y video.mp4
复制代码