Adjusting Pitch/Stride

Intel® Integrated Performance Primitives

Deliberate problems developing high-performance vision, signal, security, and storage applications.

Adjusting Pitch/Stride

249 Views

I am writing a Directshow H264 decoder using the IPP. The downstream renderer will often require a different pitch. When using YUV formats (YV12 in my case) Ifound through a mix of educated guesses and experimentation thatthe following code worked.

VideoData DataOut;
....
// if new stride proposed by downstream filter...

DataOut.SetPlanePitch(m_pitch/2, 2);
DataOut.SetPlanePitch(m_pitch/2, 1);
DataOut.SetPlanePitch(m_pitch, 0);

RGB24 on the other hand has only one plane.

Is there a 'cleaner' i.e. more general way to know how to do this based on the type? Is this documented anywhere?

Link Copied

0 Replies

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.