topic Mpeg4FrameConstructor in Intel® Integrated Performance Primitives

Mpeg4FrameConstructor

Ali_Gökalp_P_ — Tue, 15 Jul 2008 10:16:49 GMT

Hi,

I used MPEG4FrameConstructor before decoding each frame to provide decoder a proper frame data.

I coded it as mentioned in UMC document.But during execution FC.UnlockInputBuffer always returns UMC_ERR_SYNC.I initialize FrameConstructor with NULL m_pInfo and m_lBufferSize = 1024 * 1024 and also read data in 1024 byte blocks.( FC.LockInputBuffer( buf ) causes buf datasize to 0 )

As i debug UMC codes sync byte has been found in the first byte sequence but it returns UMC_ERR_SYNC due to m_lCurPos >=m_lLastBytePos-3 for m_lCurPos = 0, m_lLastBytePos = 0 is true.

Is UMC usage sample in documents old ? Or am i doing something wrong?
Thanks.

Re: Mpeg4FrameConstructor

Ali_Gökalp_P_ — Tue, 15 Jul 2008 10:18:30 GMT

Sorry , i forgot, i use IPP 5.3 Update 3 with UMC sample 6.0.067.

Re: Mpeg4FrameConstructor

Ali_Gökalp_P_ — Tue, 15 Jul 2008 12:22:38 GMT

Also , during initialization phase, i don't know specific format informations and i don't set m_pInfo and some other settings

Re: Mpeg4FrameConstructor

lunatic — Thu, 17 Sep 2009 06:43:19 GMT

Quoting - aligokalppeker@yahoo.com

Sorry , i forgot, i use IPP 5.3 Update 3 with UMC sample 6.0.067.

Got the same problem. Have you found a solution to your problem yet?

Re: Mpeg4FrameConstructor

PaulF_IntelCorp — Fri, 18 Sep 2009 19:17:01 GMT

Please use the version of the IPP library that matches your sample versions (i.e., v6.0 library with v6.0 samples). Using older versions of the library with newer versionsof the samples are not guaranteed to work. Many of the samples are updated with each new release of the product.