1. Generate test sources: image and its h264 file.
- copy 1 images for 100 times.
import shutil
source = "./1.png"
for i in range(2,100):
target = "./" + str(i) + ".png"
#print(target)
shutil.copy(source,target)
- generate 20fps yuv420p h264 file ( ffmpeg -framerate 20 -i "%d.png" -vcodec h264 -b:v 10485760 -pix_fmt yuv420p "yuv420p_20fps.h264" )
generate h264 based on 100 image
原文：https://www.cnblogs.com/morganh/p/12905297.html