如何使用ffmpeg将mp4转换为YUV文件？

Question

I cannot play yuv file properly after converting it from mp4 format to YUV 420 format. I have programmed the width and height of the video when I play it. Is the following converting command for ffmpeg correct?

ffmpeg -i sample.mp4 -c:v rawvideo -pix_fmt yuv420p out.yuv

Answer 1

Almost all video decodes to YCbCr 4:2:0, aka IYUV ( fourcc ), hence

ffmpeg -i sample.mp4 out.yuv

is sufficient.

To view it you can eg use, ffplay , display from imagemagick, my own tool , or vooya .

Some examples:

# Using ffmpeg
ffplay -s WxH file.yuv

# Using imagemagick and display to look at first frame
display -size WxH -depth 8 -colorspace sRGB 'file.yuv[1]'