[FFmpeg-user] function trace

Roger Pack rogerdpack2 at gmail.com
Sun Oct 14 06:40:13 CEST 2012


On Sat, Oct 13, 2012 at 5:50 PM, Marc Elliott <elliott2w1 at gmail.com> wrote:
> Hello.  I am streaming a raw video and I am trying to trace the function
> calls that take place between the motion estimation functions (in
> libavcodec/motion_est.c) and the write function (in libavformat/http.c).
>  The size of my video frames are 320x240 which, given the yuv420 format,
> results in a total buffer size of 115,200.  I have been able to trace the
> function calls all the way up until the motion estimation but I am having
> trouble tracking down what takes place after that.
>
> During motion estimation, I have verified that the original data is what is
> being worked with.  However, I have also found that 11 or so frames go
> through motion detection before the write function is being called.  When
> the write function is called, the buffer size is only 4096.

What codec are you using? are you using ffmpeg command line?
-r


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