On 17/07/2010, at 8:22 AM, Ronald S. Bultje wrote:

On Thu, Jul 15, 2010 at 9:04 PM, Mark Heath <[email protected]> wrote:
Is this the right forum for libavfilter related questions?

Sure. Don't ask to ask, just ask. :-).

Wasn't sure if it should be libav-user or libav-devel


Is there a way to determine frame rate or interlace order from within a custom avfilter?

These are quite important details I'm needing for my video filter, I'm currently parsing them in via command line. I'm also looking at porting some mjpegutil yuv filters and these details are needed in the filters I'm porting.

Also my filter introduces a (small) delay in the video, it is impossible to avoid or correct, is there a way to inform ffmpeg of this so that is correctly syncs the audio?

I tried modifying the PTS on the output, but it seems to make no difference.

anyone know how to do this?

Thanks
Mark
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