How to adjust Height and width in android stagefright Media Player

Question

Is there any way to adjust height and width of a Video in file which is similar to SoftAVC.Cpp..

In my code the width and height is fixed(i.e 832*480) for particular video.But I want to play different video's What should I do?, so that I can play different Video's.

My Code

IntdecHEVC::IntdecHEVC(
                           const char *name,
                           const OMX_CALLBACKTYPE *callbacks,
                           OMX_PTR appData,
                           OMX_COMPONENTTYPE **component)
    : SoftVideoDecoderOMXComponent(name, componentName, codingType,
                                   kProfileLevels, ARRAY_SIZE(kProfileLevels),

                                   832 /* width */, 480 /* height */, callbacks,
                                   appData, component),
    mFlushOutBuffer(NULL),
    mOmxColorFormat(OMX_COLOR_FormatYUV420Planar),
    mChangingResolution(false),
    mSignalledError(false),
    mIsInFlush(false),
    mReceivedEOS(false),


    mStride(mWidth) {
        const size_t kMinCompressionRatio = 4 /* compressionRatio (for Level 4+) */;
        const size_t kMaxOutputBufferSize = 2048 * 2048 * 3 / 2;

        m_lOriginalWidthY = 832;
        m_lHeightY = 480;
        m_lOriginalWidthUV = m_lOriginalWidthY/2;
        m_lHeightUV = m_lHeightY/2;


        // INPUT_BUF_SIZE is given by HEVC codec as minimum input size   changed by pooja 11-4
        initPorts(
                  kNumInputBuffers,INPUT_BUF_SIZE, kNumOutputBuffers, CODEC_MIME_TYPE);
    }