H264 encoding

edit

I'm using opencv with ffmpeg to create h264 videos from my opencv project.

But the result video is not playable in quicktime or in webbrowser.

When i analyse this video with ffmpeg it say:

[mp4 @ 0x1ae05e0] pts has no value

I tried many things to correct this: change opencv version, edit AVCodecContext in cap_ffmpeg_impl.hpp before compilation to add compression parameters etc....

Nothing work :(

Any idea?

Thanks