[Libav-user] ffmpeg transcode problem

[yzh杨振宏]

Hello,

I a newbie to ffmpeg api. I use examples/transcoding.c(https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/transcoding.c) to transcode my H264/AAC mp4 to another mp4.

My input mp4 is 23.99 fps. However, the output is changed to 6 fps. This is weird.

I want to know why does this happen and how can I keep output mp4 same as input one.

Thanks!
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