[FFmpeg-user] Trying to determine how video data is compressed and written after motion estimation has completed

[Marc Elliott]

Unfortunately, I have verified that the header information is sent in its
entirety before any of the actual video frames are being streamed.  I'm
assuming that the data for each frame is somehow compressed after it goes
through motion estimation but I can't find where that is taking place.
 What I'm trying to do is trace all of the function calls for each frame
after it goes through motion estimation up until the point the data is
actually transmitted.

It looks like ffmpeg is processing an entire GOP before any data is
actually written.  I just can't seem to find out how this data is
compressed.  Any pointers would be very much appreciated.  Thanks.

On Fri, Oct 26, 2012 at 3:15 PM, Roger Pack <rogerdpack2 at gmail.com> wrote:

> > 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.  So, what I'm
> > trying to determine is how the data goes from 11 or so frames of size
> > 115,200 to one buffer size of 4096.
>
> header?
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