umc_mpeg4_spl.cpp

来自「这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数」· C++ 代码 · 共 60 行

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2003-2005 Intel Corporation. All Rights Reserved.
//
*/

#include "vm_debug.h"
#include "umc_mpeg4_spl.h"

UMC::Status
UMC::MPEG4Splitter::SelectVideoStream(vm_var32             uiInd,
                                      VideoStreamType&     rvType,
                                      VideoStreamSubType&  rvSubType)
{
    Status umcRes = UMC_OK;

    vm_var32 fccHandler = m_pStreams[uiInd].sStrmHdr.fccHandler;
    if (AVI_FOURCC_DIVX == fccHandler  ||
        AVI_FOURCC_divx == fccHandler  ||
        AVI_FOURCC_DX50 == fccHandler  ||
        AVI_FOURCC_DX50 == fccHandler  ||
        AVI_FOURCC_dx50     == fccHandler ||
        AVI_FOURCC_DIV4     == fccHandler ||
        AVI_FOURCC_div4     == fccHandler ||
        AVI_FOURCC_XVID     == fccHandler ||
        AVI_FOURCC_xvid     == fccHandler ||
        AVI_FOURCC_MP4V     == fccHandler ||
        AVI_FOURCC_mp4v     == fccHandler
        )
    {
        if (AVI_FOURCC_VIDEOSTRM == m_pStreams[uiInd].sStrmHdr.fccType)
        {
            rvType    = MPEG4_VIDEO;

            if (AVI_FOURCC_DX50 == fccHandler)
            {
                m_info.m_video_info.stream_subtype = MPEG4_VIDEO_DIVX5;
                rvSubType = MPEG4_VIDEO_DIVX5;
            }
            else
            {
                m_info.m_video_info.stream_subtype = UNDEF_VIDEO_SUBTYPE;
                rvSubType = UNDEF_VIDEO_SUBTYPE;
            }

        }
    }
    else
    {   umcRes = UMC_BAD_STREAM;    }

    if (UMC_OK != umcRes)
    {    vm_debug_trace(4, VM_STRING("MPEG4Splitter SelectVideoStream failed\n"));    }

    return umcRes;
}