Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.2k views
in Technique[技术] by (71.8m points)

ffmpeg PNG to mp4 - Black screen

I can create a mpg video using this line

ffmpeg -f image2 -i 100%03d0.png movie.mpg

But If I try creating an mp4 video I get a video with a black screen.

ffmpeg -f image2 -i 100%03d0.png movie.mp4

My directory with figures looks like: 1000010.png,1000020.png,...1001260.png

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Adding -pix_fmt yuv420p should solve the problem:

ffmpeg -i input_%03d.png -pix_fmt yuv420p movie.mp4

From FFmpeg Wiki:

"By default when using libx264, and depending on your input, ffmpeg will attempt to avoid color subsampling. Technically this is preferred, but unfortunately almost all video players, excluding FFmpeg based players, and many online video services only support the YUV color space with 4:2:0 chroma subsampling.

Using the options -pix_fmt yuv420p or -vf format=yuv420p will maximize compatibility."


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...