media/jni/mediaeditor/VideoEditorThumbnailMain.cpp - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */


 #include <jni.h>
 #include <JNIHelp.h>
 #include <utils/Log.h>
 #include "VideoBrowserMain.h"
 #include "VideoBrowserInternal.h"

 #if (M4OSA_TRACE_LEVEL >= 1)
 #undef M4OSA_TRACE1_0
 #undef M4OSA_TRACE1_1
 #undef M4OSA_TRACE1_2
 #undef M4OSA_TRACE1_3

 #define M4OSA_TRACE1_0(a)       __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a);
 #define M4OSA_TRACE1_1(a,b)     __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a,b);
 #define M4OSA_TRACE1_2(a,b,c)   __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a,b,c);
 #define M4OSA_TRACE1_3(a,b,c,d) __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a,b,c,d);
 #endif

 /*
  * Memory format of 'ARGB8888' in skia is RGBA, so ABGR in 32bit little-endian packed format
  * bitmap format is rgb565
  */
 //                                RED                 GREEN               BLUE            ALPHA
 #define RGB565toSKCOLOR(c) ( (((c)&0xF800)>>8) | (((c)&0x7E0)<<5) | (((c)&0x1F)<<19) | 0xFF000000)

 #define GetIntField(env, obj, name) env->GetIntField(obj,\
 env->GetFieldID(env->GetObjectClass(obj), name, "I"))

 extern "C" M4OSA_ERR NXPSW_FileReaderOptim_init(M4OSA_Void *lowLevel_functionPointers,
         M4OSA_Void *optimized_functionPointers);

 /*
  * Video Browser execution context.
  * Based on request for RGB565 or RGB888, m_dst16 or m_dst32
  * will be initialized and used
  */
 typedef struct
 {
     M4OSA_Context       m_pVideoBrowser;
     M4OSA_UInt32        m_previousTime;
     M4OSA_Int32*        m_dst32;
     M4OSA_Int16*        m_dst16;
     unsigned int        m_width;
     unsigned int        m_height;
     M4OSA_Bool          m_bRender;
 } ThumbnailContext;

 /**
  ************************************************************************
  * @brief    Interface to retrieve the thumbnail pixels
  * @param    pContext   (IN)    Thumbnail Context.
  * @param    width      (IN)    Width of thumbnail
  * @param    height     (IN)    Height of thumbnail
  * @param    pTimeMS    (IN/OUT)Time stamp at which thumbnail is retrieved.
  ************************************************************************
 */
 M4OSA_ERR ThumbnailGetPixels(const M4OSA_Context pContext,
                              M4OSA_Int32* pixelArray,
                              M4OSA_UInt32 width, M4OSA_UInt32 height,
                              M4OSA_UInt32* pTimeMS, M4OSA_UInt32 tolerance);


 /**
  ************************************************************************
  * @brief    Video browser callback, called when a frame must be displayed
  * @param    pInstance          (IN) Thumbnail context.
  * @param    notificationID     (IN) Id of the callback which generated the error
  * @param    errCode            (IN) Error code from the Core
  * @param    pCbData            (IN) pointer to data associated wit the callback.
  * @param    pCbUserData        (IN) pointer to application user data passed in init.
  * @note     This callback mechanism is used to request display of an image
  ************************************************************************
 */
 M4OSA_Void VBcallback(  M4OSA_Context  pInstance,
                         VideoBrowser_Notification notificationID,
                         M4OSA_ERR errCode, M4OSA_Void* pCbData,
                         M4OSA_Void* pCallbackUserData)
 {
     M4OSA_UInt32 i, j;
     M4OSA_ERR err;

     M4OSA_TRACE3_0("inside VBcallback");
     M4VIFI_ImagePlane* pPlane=NULL;
     M4OSA_UInt16* src=NULL;
     ThumbnailContext* pC = NULL;

     CHECK_PTR(VBcallback, pCbData, err, M4ERR_PARAMETER);
     CHECK_PTR(VBcallback, pInstance,err, M4ERR_PARAMETER);

     pC = (ThumbnailContext*)pCallbackUserData ;
     CHECK_PTR(VBcallback, pC->m_pVideoBrowser, err, M4ERR_PARAMETER);

     pPlane = (M4VIFI_ImagePlane*)pCbData;
     src = (M4OSA_UInt16*)pPlane->pac_data;

     if (pC->m_dst32 != NULL)
     {
         M4OSA_Int32* dst = pC->m_dst32;

         for (j = 0; j < pPlane->u_height; j++)
         {
             for (i = 0; i < pPlane->u_width; i++)
             {
                 dst[i] = RGB565toSKCOLOR(src[i]);
             }
             for (i = pPlane->u_width; i < pC->m_width; i++)
             {
                 dst[i] = 0;
             }
             src = (M4OSA_UInt16*)((M4OSA_UInt8*)src + pPlane->u_stride);
             dst += pC->m_width;
         }
     }
     else if (pC->m_dst16 != NULL)
     {
         M4OSA_Int16* dst = pC->m_dst16;

         for (j = 0; j < pPlane->u_height; j++)
         {
             memcpy((void * )dst, (void * )src, pPlane->u_stride);
             for (i = pPlane->u_width; i < pC->m_width; i++)
             {
                 dst[i] = 0;
             }
             src = (M4OSA_UInt16*)((M4OSA_UInt8*)src + pPlane->u_stride);
             dst += pC->m_width;
         }
     }
     else
     {
         CHECK_PTR(VBcallback, NULL, err, M4ERR_PARAMETER);
     }

 VBcallback_cleanUp:

     return;
 }

 M4OSA_ERR ThumbnailOpen(M4OSA_Context *pPContext,
                   const M4OSA_Char *pString,
                   M4OSA_Bool bRender)
 {

     M4OSA_ERR err;
     ThumbnailContext *pContext = M4OSA_NULL;
     VideoBrowser_VideoColorType vbColorType;

     CHECK_PTR(ThumbnailOpen, pString, err, M4ERR_BAD_CONTEXT);

     /*--- Create context ---*/
     pContext = (ThumbnailContext*)M4OSA_32bitAlignedMalloc(sizeof(ThumbnailContext), VIDEOBROWSER,
         (M4OSA_Char*)"Thumbnail context") ;
     M4OSA_TRACE3_1("context value is = %d",pContext);
     CHECK_PTR(ThumbnailOpen, pContext, err, M4ERR_ALLOC);

     memset((void *)pContext, 0,sizeof(ThumbnailContext));

     M4OSA_FileReadPointer optFP;
     M4OSA_FileReadPointer llFP;

     NXPSW_FileReaderOptim_init(&llFP, &optFP);
     M4OSA_TRACE1_2("ThumbnailOpen: entering videoBrowserCreate with 0x%x %s",
         &pContext->m_pVideoBrowser, pString) ;

     pContext->m_bRender = bRender;
     if (bRender == M4OSA_TRUE) {
         //Open is called for rendering the frame.
         //So set YUV420 as the output color format.
         vbColorType = VideoBrowser_kYUV420;
     } else {
         //Open is called for thumbnail Extraction
         //So set BGR565 as the output.
         vbColorType = VideoBrowser_kGB565;
     }

     err = videoBrowserCreate(&pContext->m_pVideoBrowser, (M4OSA_Char*)pString,
         VideoBrowser_kVBNormalBliting, &optFP, VBcallback, pContext, vbColorType);

     M4OSA_TRACE1_1("err value is = 0x%x",err);
     CHECK_ERR(ThumbnailOpen, err);
     CHECK_PTR(ThumbnailOpen, pContext->m_pVideoBrowser, err, M4ERR_ALLOC);

     *pPContext = pContext;
     M4OSA_TRACE1_1("context value is = %d",*pPContext);

     return M4NO_ERROR;

 ThumbnailOpen_cleanUp:

     M4OSA_TRACE1_0("i am inside cleanUP");
     if (M4OSA_NULL != pContext)
     {
         if (M4OSA_NULL != pContext->m_pVideoBrowser)
         {
             videoBrowserCleanUp(pContext->m_pVideoBrowser) ;
         }
         free(pContext) ;
     }
     return err;
 }

 M4OSA_ERR ThumbnailGetPixels(const M4OSA_Context pContext,
                              M4OSA_Int32* pixelArray,
                              M4OSA_UInt32 width, M4OSA_UInt32 height,
                              M4OSA_UInt32* pTimeMS, M4OSA_UInt32 tolerance)
 {
     M4OSA_ERR err;

     ThumbnailContext* pC = (ThumbnailContext*)pContext;

     if ((pC->m_width != width) || (pC->m_height != height))
     {
         err = videoBrowserSetWindow(pC->m_pVideoBrowser, pixelArray,
                                       0, 0, width, height);
         CHECK_ERR(ThumbnailGetPixels, err);
         pC->m_width  = width;
         pC->m_height = height;
     }

     // Alter the pTimeMS to a valid value at which a frame is found
     // m_currentCTS has the actual frame time stamp just ahead of the
     // pTimeMS supplied.
     if ((((VideoBrowserContext*)pC->m_pVideoBrowser)->m_currentCTS != 0) &&
         (*pTimeMS >= pC->m_previousTime) &&
         (*pTimeMS < ((VideoBrowserContext*)pC->m_pVideoBrowser)->m_currentCTS))
     {
         pC->m_previousTime = *pTimeMS;
         *pTimeMS = ((VideoBrowserContext*)pC->m_pVideoBrowser)->m_currentCTS;
     }
     else
     {
         pC->m_previousTime = *pTimeMS;
     }

     err = videoBrowserPrepareFrame(pC->m_pVideoBrowser, pTimeMS, tolerance);
     CHECK_ERR(ThumbnailGetPixels, err);

     if (pC->m_bRender != M4OSA_TRUE) {
         err = videoBrowserDisplayCurrentFrame(pC->m_pVideoBrowser);
         CHECK_ERR(ThumbnailGetPixels, err);
     }

 ThumbnailGetPixels_cleanUp:

     return err;
 }

 M4OSA_ERR ThumbnailGetPixels32(const M4OSA_Context pContext,
                          M4OSA_Int32* pixelArray, M4OSA_UInt32 width,
                          M4OSA_UInt32 height, M4OSA_UInt32* timeMS,
                          M4OSA_UInt32 tolerance)
 {

     M4OSA_ERR err = M4NO_ERROR;

     ThumbnailContext* pC = (ThumbnailContext*)pContext;

     CHECK_PTR(ThumbnailGetPixels32, pC->m_pVideoBrowser, err, M4ERR_ALLOC) ;
     CHECK_PTR(ThumbnailGetPixels32, pixelArray, err, M4ERR_ALLOC) ;

     pC->m_dst16 = NULL;
     pC->m_dst32 = pixelArray;

     err = ThumbnailGetPixels(pContext, pixelArray, width, height, timeMS, tolerance);

 ThumbnailGetPixels32_cleanUp:

     return err;
 }

 M4OSA_ERR ThumbnailGetPixels16(const M4OSA_Context pContext,
                          M4OSA_Int16* pixelArray, M4OSA_UInt32 width,
                          M4OSA_UInt32 height, M4OSA_UInt32* timeMS,
                          M4OSA_UInt32 tolerance)
 {
     M4OSA_ERR err = M4NO_ERROR;

     ThumbnailContext* pC = (ThumbnailContext*)pContext;

     CHECK_PTR(ThumbnailGetPixels16, pC->m_pVideoBrowser, err, M4ERR_ALLOC);
     CHECK_PTR(ThumbnailGetPixels16, pixelArray, err, M4ERR_ALLOC);

     pC->m_dst16 = pixelArray;
     pC->m_dst32 = NULL;

     err = ThumbnailGetPixels(pContext, (M4OSA_Int32*)pixelArray, width, height,
             timeMS, tolerance);

 ThumbnailGetPixels16_cleanUp:

     return err;
 }


 void ThumbnailClose(const M4OSA_Context pContext)
 {
     M4OSA_ERR err;

     ThumbnailContext* pC = (ThumbnailContext*)pContext;

     CHECK_PTR(ThumbnailClose, pC, err, M4ERR_ALLOC);

     if (M4OSA_NULL != pC)
     {
         if (M4OSA_NULL != pC->m_pVideoBrowser)
         {
             videoBrowserCleanUp(pC->m_pVideoBrowser);
         }
         free(pC);
     }

 ThumbnailClose_cleanUp:

     return;
 }
	/*
	* Copyright (C) 2011 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/


	#include <jni.h>
	#include <JNIHelp.h>
	#include <utils/Log.h>
	#include "VideoBrowserMain.h"
	#include "VideoBrowserInternal.h"

	#if (M4OSA_TRACE_LEVEL >= 1)
	#undef M4OSA_TRACE1_0
	#undef M4OSA_TRACE1_1
	#undef M4OSA_TRACE1_2
	#undef M4OSA_TRACE1_3

	#define M4OSA_TRACE1_0(a) __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a);
	#define M4OSA_TRACE1_1(a,b) __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a,b);
	#define M4OSA_TRACE1_2(a,b,c) __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a,b,c);
	#define M4OSA_TRACE1_3(a,b,c,d) __android_log_print(ANDROID_LOG_INFO, "Thumbnail", a,b,c,d);
	#endif

	/*
	* Memory format of 'ARGB8888' in skia is RGBA, so ABGR in 32bit little-endian packed format
	* bitmap format is rgb565
	*/
	// RED GREEN BLUE ALPHA
	#define RGB565toSKCOLOR(c) ( (((c)&0xF800)>>8) \| (((c)&0x7E0)<<5) \| (((c)&0x1F)<<19) \| 0xFF000000)

	#define GetIntField(env, obj, name) env->GetIntField(obj,\
	env->GetFieldID(env->GetObjectClass(obj), name, "I"))

	extern "C" M4OSA_ERR NXPSW_FileReaderOptim_init(M4OSA_Void *lowLevel_functionPointers,
	M4OSA_Void *optimized_functionPointers);

	/*
	* Video Browser execution context.
	* Based on request for RGB565 or RGB888, m_dst16 or m_dst32
	* will be initialized and used
	*/
	typedef struct
	{
	M4OSA_Context m_pVideoBrowser;
	M4OSA_UInt32 m_previousTime;
	M4OSA_Int32* m_dst32;
	M4OSA_Int16* m_dst16;
	unsigned int m_width;
	unsigned int m_height;
	M4OSA_Bool m_bRender;
	} ThumbnailContext;

	/**
	************************************************************************
	* @brief Interface to retrieve the thumbnail pixels
	* @param pContext (IN) Thumbnail Context.
	* @param width (IN) Width of thumbnail
	* @param height (IN) Height of thumbnail
	* @param pTimeMS (IN/OUT)Time stamp at which thumbnail is retrieved.
	************************************************************************
	*/
	M4OSA_ERR ThumbnailGetPixels(const M4OSA_Context pContext,
	M4OSA_Int32* pixelArray,
	M4OSA_UInt32 width, M4OSA_UInt32 height,
	M4OSA_UInt32* pTimeMS, M4OSA_UInt32 tolerance);


	/**
	************************************************************************
	* @brief Video browser callback, called when a frame must be displayed
	* @param pInstance (IN) Thumbnail context.
	* @param notificationID (IN) Id of the callback which generated the error
	* @param errCode (IN) Error code from the Core
	* @param pCbData (IN) pointer to data associated wit the callback.
	* @param pCbUserData (IN) pointer to application user data passed in init.
	* @note This callback mechanism is used to request display of an image
	************************************************************************
	*/
	M4OSA_Void VBcallback( M4OSA_Context pInstance,
	VideoBrowser_Notification notificationID,
	M4OSA_ERR errCode, M4OSA_Void* pCbData,
	M4OSA_Void* pCallbackUserData)
	{
	M4OSA_UInt32 i, j;
	M4OSA_ERR err;

	M4OSA_TRACE3_0("inside VBcallback");
	M4VIFI_ImagePlane* pPlane=NULL;
	M4OSA_UInt16* src=NULL;
	ThumbnailContext* pC = NULL;

	CHECK_PTR(VBcallback, pCbData, err, M4ERR_PARAMETER);
	CHECK_PTR(VBcallback, pInstance,err, M4ERR_PARAMETER);

	pC = (ThumbnailContext*)pCallbackUserData ;
	CHECK_PTR(VBcallback, pC->m_pVideoBrowser, err, M4ERR_PARAMETER);

	pPlane = (M4VIFI_ImagePlane*)pCbData;
	src = (M4OSA_UInt16*)pPlane->pac_data;

	if (pC->m_dst32 != NULL)
	{
	M4OSA_Int32* dst = pC->m_dst32;

	for (j = 0; j < pPlane->u_height; j++)
	{
	for (i = 0; i < pPlane->u_width; i++)
	{
	dst[i] = RGB565toSKCOLOR(src[i]);
	}
	for (i = pPlane->u_width; i < pC->m_width; i++)
	{
	dst[i] = 0;
	}
	src = (M4OSA_UInt16)((M4OSA_UInt8)src + pPlane->u_stride);
	dst += pC->m_width;
	}
	}
	else if (pC->m_dst16 != NULL)
	{
	M4OSA_Int16* dst = pC->m_dst16;

	for (j = 0; j < pPlane->u_height; j++)
	{
	memcpy((void * )dst, (void * )src, pPlane->u_stride);
	for (i = pPlane->u_width; i < pC->m_width; i++)
	{
	dst[i] = 0;
	}
	src = (M4OSA_UInt16)((M4OSA_UInt8)src + pPlane->u_stride);
	dst += pC->m_width;
	}
	}
	else
	{
	CHECK_PTR(VBcallback, NULL, err, M4ERR_PARAMETER);
	}

	VBcallback_cleanUp:

	return;
	}

	M4OSA_ERR ThumbnailOpen(M4OSA_Context *pPContext,
	const M4OSA_Char *pString,
	M4OSA_Bool bRender)
	{

	M4OSA_ERR err;
	ThumbnailContext *pContext = M4OSA_NULL;
	VideoBrowser_VideoColorType vbColorType;

	CHECK_PTR(ThumbnailOpen, pString, err, M4ERR_BAD_CONTEXT);

	/--- Create context ---/
	pContext = (ThumbnailContext*)M4OSA_32bitAlignedMalloc(sizeof(ThumbnailContext), VIDEOBROWSER,
	(M4OSA_Char*)"Thumbnail context") ;
	M4OSA_TRACE3_1("context value is = %d",pContext);
	CHECK_PTR(ThumbnailOpen, pContext, err, M4ERR_ALLOC);

	memset((void *)pContext, 0,sizeof(ThumbnailContext));

	M4OSA_FileReadPointer optFP;
	M4OSA_FileReadPointer llFP;

	NXPSW_FileReaderOptim_init(&llFP, &optFP);
	M4OSA_TRACE1_2("ThumbnailOpen: entering videoBrowserCreate with 0x%x %s",
	&pContext->m_pVideoBrowser, pString) ;

	pContext->m_bRender = bRender;
	if (bRender == M4OSA_TRUE) {
	//Open is called for rendering the frame.
	//So set YUV420 as the output color format.
	vbColorType = VideoBrowser_kYUV420;
	} else {
	//Open is called for thumbnail Extraction
	//So set BGR565 as the output.
	vbColorType = VideoBrowser_kGB565;
	}

	err = videoBrowserCreate(&pContext->m_pVideoBrowser, (M4OSA_Char*)pString,
	VideoBrowser_kVBNormalBliting, &optFP, VBcallback, pContext, vbColorType);

	M4OSA_TRACE1_1("err value is = 0x%x",err);
	CHECK_ERR(ThumbnailOpen, err);
	CHECK_PTR(ThumbnailOpen, pContext->m_pVideoBrowser, err, M4ERR_ALLOC);

	*pPContext = pContext;
	M4OSA_TRACE1_1("context value is = %d",*pPContext);

	return M4NO_ERROR;

	ThumbnailOpen_cleanUp:

	M4OSA_TRACE1_0("i am inside cleanUP");
	if (M4OSA_NULL != pContext)
	{
	if (M4OSA_NULL != pContext->m_pVideoBrowser)
	{
	videoBrowserCleanUp(pContext->m_pVideoBrowser) ;
	}
	free(pContext) ;
	}
	return err;
	}

	M4OSA_ERR ThumbnailGetPixels(const M4OSA_Context pContext,
	M4OSA_Int32* pixelArray,
	M4OSA_UInt32 width, M4OSA_UInt32 height,
	M4OSA_UInt32* pTimeMS, M4OSA_UInt32 tolerance)
	{
	M4OSA_ERR err;

	ThumbnailContext* pC = (ThumbnailContext*)pContext;

	if ((pC->m_width != width) \|\| (pC->m_height != height))
	{
	err = videoBrowserSetWindow(pC->m_pVideoBrowser, pixelArray,
	0, 0, width, height);
	CHECK_ERR(ThumbnailGetPixels, err);
	pC->m_width = width;
	pC->m_height = height;
	}

	// Alter the pTimeMS to a valid value at which a frame is found
	// m_currentCTS has the actual frame time stamp just ahead of the
	// pTimeMS supplied.
	if ((((VideoBrowserContext*)pC->m_pVideoBrowser)->m_currentCTS != 0) &&
	(*pTimeMS >= pC->m_previousTime) &&
	(pTimeMS < ((VideoBrowserContext)pC->m_pVideoBrowser)->m_currentCTS))
	{
	pC->m_previousTime = *pTimeMS;
	pTimeMS = ((VideoBrowserContext)pC->m_pVideoBrowser)->m_currentCTS;
	}
	else
	{
	pC->m_previousTime = *pTimeMS;
	}

	err = videoBrowserPrepareFrame(pC->m_pVideoBrowser, pTimeMS, tolerance);
	CHECK_ERR(ThumbnailGetPixels, err);

	if (pC->m_bRender != M4OSA_TRUE) {
	err = videoBrowserDisplayCurrentFrame(pC->m_pVideoBrowser);
	CHECK_ERR(ThumbnailGetPixels, err);
	}

	ThumbnailGetPixels_cleanUp:

	return err;
	}

	M4OSA_ERR ThumbnailGetPixels32(const M4OSA_Context pContext,
	M4OSA_Int32* pixelArray, M4OSA_UInt32 width,
	M4OSA_UInt32 height, M4OSA_UInt32* timeMS,
	M4OSA_UInt32 tolerance)
	{

	M4OSA_ERR err = M4NO_ERROR;

	ThumbnailContext* pC = (ThumbnailContext*)pContext;

	CHECK_PTR(ThumbnailGetPixels32, pC->m_pVideoBrowser, err, M4ERR_ALLOC) ;
	CHECK_PTR(ThumbnailGetPixels32, pixelArray, err, M4ERR_ALLOC) ;

	pC->m_dst16 = NULL;
	pC->m_dst32 = pixelArray;

	err = ThumbnailGetPixels(pContext, pixelArray, width, height, timeMS, tolerance);

	ThumbnailGetPixels32_cleanUp:

	return err;
	}

	M4OSA_ERR ThumbnailGetPixels16(const M4OSA_Context pContext,
	M4OSA_Int16* pixelArray, M4OSA_UInt32 width,
	M4OSA_UInt32 height, M4OSA_UInt32* timeMS,
	M4OSA_UInt32 tolerance)
	{
	M4OSA_ERR err = M4NO_ERROR;

	ThumbnailContext* pC = (ThumbnailContext*)pContext;

	CHECK_PTR(ThumbnailGetPixels16, pC->m_pVideoBrowser, err, M4ERR_ALLOC);
	CHECK_PTR(ThumbnailGetPixels16, pixelArray, err, M4ERR_ALLOC);

	pC->m_dst16 = pixelArray;
	pC->m_dst32 = NULL;

	err = ThumbnailGetPixels(pContext, (M4OSA_Int32*)pixelArray, width, height,
	timeMS, tolerance);

	ThumbnailGetPixels16_cleanUp:

	return err;
	}


	void ThumbnailClose(const M4OSA_Context pContext)
	{
	M4OSA_ERR err;

	ThumbnailContext* pC = (ThumbnailContext*)pContext;

	CHECK_PTR(ThumbnailClose, pC, err, M4ERR_ALLOC);

	if (M4OSA_NULL != pC)
	{
	if (M4OSA_NULL != pC->m_pVideoBrowser)
	{
	videoBrowserCleanUp(pC->m_pVideoBrowser);
	}
	free(pC);
	}

	ThumbnailClose_cleanUp:

	return;
	}