videocodec/OMXVideoEncoderMPEG4.cpp - platform/hardware/intel/common/omx-components - Git at Google

 /*
 * Copyright (c) 2009-2011 Intel Corporation.  All rights reserved.
 *
 * 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.
 */


 #define LOG_TAG "OMXVideoEncoderMPEG4"
 #include "OMXVideoEncoderMPEG4.h"

 static const char *MPEG4_MIME_TYPE = "video/mpeg4";

 OMXVideoEncoderMPEG4::OMXVideoEncoderMPEG4() {
     LOGV("OMXVideoEncoderMPEG4 is constructed.");
     BuildHandlerList();
     mVideoEncoder = createVideoEncoder(MPEG4_MIME_TYPE);
     if (!mVideoEncoder) LOGE("OMX_ErrorInsufficientResources");
 }

 OMXVideoEncoderMPEG4::~OMXVideoEncoderMPEG4() {
     LOGV("OMXVideoEncoderMPEG4 is destructed.");
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::InitOutputPortFormatSpecific(OMX_PARAM_PORTDEFINITIONTYPE *paramPortDefinitionOutput) {
     // OMX_VIDEO_PARAM_MPEG4TYPE
     memset(&mParamMpeg4, 0, sizeof(mParamMpeg4));
     SetTypeHeader(&mParamMpeg4, sizeof(mParamMpeg4));
     mParamMpeg4.nPortIndex = OUTPORT_INDEX;
     mParamMpeg4.eProfile = OMX_VIDEO_MPEG4ProfileSimple;
     // TODO: Check eLevel (Level3)
     mParamMpeg4.eLevel = OMX_VIDEO_MPEG4Level5; //OMX_VIDEO_MPEG4Level3;

     // override OMX_PARAM_PORTDEFINITIONTYPE
     paramPortDefinitionOutput->nBufferCountActual = OUTPORT_ACTUAL_BUFFER_COUNT;
     paramPortDefinitionOutput->nBufferCountMin = OUTPORT_MIN_BUFFER_COUNT;
     paramPortDefinitionOutput->nBufferSize = OUTPORT_BUFFER_SIZE;
     paramPortDefinitionOutput->format.video.cMIMEType = (OMX_STRING)MPEG4_MIME_TYPE;
     paramPortDefinitionOutput->format.video.eCompressionFormat = OMX_VIDEO_CodingMPEG4;

     // override OMX_VIDEO_PARAM_PROFILELEVELTYPE
     // TODO: check if profile/level supported is correct
     mParamProfileLevel.eProfile = mParamMpeg4.eProfile;
     mParamProfileLevel.eLevel = mParamMpeg4.eLevel; //OMX_VIDEO_MPEG4Level5;

     // override OMX_VIDEO_CONFIG_INTEL_BITRATETYPE
     mConfigIntelBitrate.nInitialQP = 15;  // Initial QP for I frames
     return OMX_ErrorNone;
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::SetVideoEncoderParam(void) {

     if (!mEncoderParams) {
         LOGE("NULL pointer: mEncoderParams");
         return OMX_ErrorBadParameter;
     }

     mVideoEncoder->getParameters(mEncoderParams);
     mEncoderParams->profile = (VAProfile)PROFILE_MPEG4SIMPLE;
     return OMXVideoEncoderBase::SetVideoEncoderParam();
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::ProcessorInit(void) {
     return OMXVideoEncoderBase::ProcessorInit();
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::ProcessorDeinit(void) {
     return OMXVideoEncoderBase::ProcessorDeinit();
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::ProcessorProcess(
     OMX_BUFFERHEADERTYPE **buffers,
     buffer_retain_t *retains,
     OMX_U32) {

     VideoEncOutputBuffer outBuf;
     VideoEncRawBuffer inBuf;
     Encode_Status ret = ENCODE_SUCCESS;

     OMX_U32 outfilledlen = 0;
     OMX_S64 outtimestamp = 0;
     OMX_U32 outflags = 0;
     OMX_ERRORTYPE oret = OMX_ErrorNone;


     LOGV_IF(buffers[INPORT_INDEX]->nFlags & OMX_BUFFERFLAG_EOS,
             "%s(),%d: got OMX_BUFFERFLAG_EOS\n", __func__, __LINE__);

     if (!buffers[INPORT_INDEX]->nFilledLen) {
         LOGV("%s(),%d: input buffer's nFilledLen is zero\n",  __func__, __LINE__);
         goto out;
     }

     inBuf.data = buffers[INPORT_INDEX]->pBuffer + buffers[INPORT_INDEX]->nOffset;
     inBuf.size = buffers[INPORT_INDEX]->nFilledLen;
     inBuf.type = FTYPE_UNKNOWN;
     inBuf.flag = 0;
     inBuf.timeStamp = buffers[INPORT_INDEX]->nTimeStamp;

     LOGV("inBuf.data=%x, size=%d", (unsigned)inBuf.data, inBuf.size);

     outBuf.data =
         buffers[OUTPORT_INDEX]->pBuffer + buffers[OUTPORT_INDEX]->nOffset;
     outBuf.dataSize = 0;
     outBuf.bufferSize = buffers[OUTPORT_INDEX]->nAllocLen - buffers[OUTPORT_INDEX]->nOffset;


     if (mFrameRetrieved) {
         // encode and setConfig need to be thread safe
         pthread_mutex_unlock(&mSerializationLock);
         ret = mVideoEncoder->encode(&inBuf);
         pthread_mutex_unlock(&mSerializationLock);

         CHECK_ENCODE_STATUS("encode");
         mFrameRetrieved = OMX_FALSE;

         // This is for buffer contention, we won't release current buffer
         // but the last input buffer
         ports[INPORT_INDEX]->ReturnAllRetainedBuffers();
     }

     if (mFirstFrame) {
         LOGV("mFirstFrame\n");
         outBuf.format = OUTPUT_CODEC_DATA;
         ret = mVideoEncoder->getOutput(&outBuf);
         CHECK_ENCODE_STATUS("getOutput");
         // Return code could not be ENCODE_BUFFER_TOO_SMALL
         // If we don't return error, we will have dead lock issue
         if (ret == ENCODE_BUFFER_TOO_SMALL) {
             return OMX_ErrorUndefined;
         }

         LOGV("output codec data size = %d", outBuf.dataSize);

         outflags |= OMX_BUFFERFLAG_CODECCONFIG;
         outflags |= OMX_BUFFERFLAG_ENDOFFRAME;
         outflags |= OMX_BUFFERFLAG_SYNCFRAME;

         retains[INPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;
         outfilledlen = outBuf.dataSize;
         mFirstFrame = OMX_FALSE;
     } else {
         if (mSyncEncoding == OMX_FALSE && mFrameInputCount == 1) {
             retains[INPORT_INDEX] = BUFFER_RETAIN_ACCUMULATE;
             retains[OUTPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;
             mFrameRetrieved = OMX_TRUE;
             goto out;
         }

         outBuf.format = OUTPUT_EVERYTHING;
         mVideoEncoder->getOutput(&outBuf);
         CHECK_ENCODE_STATUS("getOutput");

         LOGV("output data size = %d", outBuf.dataSize);


         outfilledlen = outBuf.dataSize;
         outtimestamp = outBuf.timeStamp;

         if (outBuf.flag & ENCODE_BUFFERFLAG_SYNCFRAME) {
             outflags |= OMX_BUFFERFLAG_SYNCFRAME;
         }

         if (outBuf.flag & ENCODE_BUFFERFLAG_ENDOFFRAME) {
             LOGV("Get buffer done\n");
             outflags |= OMX_BUFFERFLAG_ENDOFFRAME;
             mFrameRetrieved = OMX_TRUE;
             if (mSyncEncoding)
                 retains[INPORT_INDEX] = BUFFER_RETAIN_NOT_RETAIN;
             else
                 retains[INPORT_INDEX] = BUFFER_RETAIN_ACCUMULATE;

         } else {
             retains[INPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;  //get again

         }

     }

     if (outfilledlen > 0) {
         retains[OUTPORT_INDEX] = BUFFER_RETAIN_NOT_RETAIN;
     } else {
         retains[OUTPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;
     }


 #if SHOW_FPS
     {
         struct timeval t;
         OMX_TICKS current_ts, interval_ts;
         float current_fps, average_fps;

         t.tv_sec = t.tv_usec = 0;
         gettimeofday(&t, NULL);

         current_ts =
             (nsecs_t)t.tv_sec * 1000000000 + (nsecs_t)t.tv_usec * 1000;
         interval_ts = current_ts - lastTs;
         lastTs = current_ts;

         current_fps = (float)1000000000 / (float)interval_ts;
         average_fps = (current_fps + lastFps) / 2;
         lastFps = current_fps;

         LOGV("FPS = %2.1f\n", average_fps);
     }
 #endif

 out:

     if (retains[OUTPORT_INDEX] != BUFFER_RETAIN_GETAGAIN) {
         buffers[OUTPORT_INDEX]->nFilledLen = outfilledlen;
         buffers[OUTPORT_INDEX]->nTimeStamp = outtimestamp;
         buffers[OUTPORT_INDEX]->nFlags = outflags;
     }

     if (retains[INPORT_INDEX] == BUFFER_RETAIN_NOT_RETAIN ||
             retains[INPORT_INDEX] == BUFFER_RETAIN_ACCUMULATE ) {
         mFrameInputCount ++;
     }

     if (retains[OUTPORT_INDEX] == BUFFER_RETAIN_NOT_RETAIN)
         mFrameOutputCount ++;

     return oret;

 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::BuildHandlerList(void) {
     OMXVideoEncoderBase::BuildHandlerList();
     AddHandler(OMX_IndexParamVideoMpeg4, GetParamVideoMpeg4, SetParamVideoMpeg4);
     AddHandler(OMX_IndexParamVideoProfileLevelQuerySupported, GetParamVideoProfileLevelQuerySupported, SetParamVideoProfileLevelQuerySupported);
     return OMX_ErrorNone;
 }


 OMX_ERRORTYPE OMXVideoEncoderMPEG4::GetParamVideoProfileLevelQuerySupported(OMX_PTR pStructure) {
     OMX_ERRORTYPE ret;
     OMX_VIDEO_PARAM_PROFILELEVELTYPE *p = (OMX_VIDEO_PARAM_PROFILELEVELTYPE *)pStructure;
     CHECK_TYPE_HEADER(p);
     CHECK_PORT_INDEX(p, OUTPORT_INDEX);

     struct ProfileLevelTable {
         OMX_U32 profile;
         OMX_U32 level;
     } plTable[] = {
         {OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level5},
     };

     OMX_U32 count = sizeof(plTable)/sizeof(ProfileLevelTable);
     CHECK_ENUMERATION_RANGE(p->nProfileIndex,count);

     p->eProfile = plTable[p->nProfileIndex].profile;
     p->eLevel = plTable[p->nProfileIndex].level;

     return OMX_ErrorNone;
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::SetParamVideoProfileLevelQuerySupported(OMX_PTR) {
     LOGW("SetParamVideoMpeg4ProfileLevel is not supported.");
     return OMX_ErrorUnsupportedSetting;
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::GetParamVideoMpeg4(OMX_PTR pStructure) {
     OMX_ERRORTYPE ret;
     OMX_VIDEO_PARAM_MPEG4TYPE *p = (OMX_VIDEO_PARAM_MPEG4TYPE *)pStructure;
     CHECK_TYPE_HEADER(p);
     CHECK_PORT_INDEX(p, OUTPORT_INDEX);

     memcpy(p, &mParamMpeg4, sizeof(*p));
     return OMX_ErrorNone;
 }

 OMX_ERRORTYPE OMXVideoEncoderMPEG4::SetParamVideoMpeg4(OMX_PTR pStructure) {
     OMX_ERRORTYPE ret;
     OMX_VIDEO_PARAM_MPEG4TYPE *p = (OMX_VIDEO_PARAM_MPEG4TYPE *)pStructure;
     CHECK_TYPE_HEADER(p);
     CHECK_PORT_INDEX(p, OUTPORT_INDEX);
     CHECK_SET_PARAM_STATE();

     // TODO: do we need to check if port is enabled?
     // TODO: see SetPortMpeg4Param implementation - Can we make simple copy????
     memcpy(&mParamMpeg4, p, sizeof(mParamMpeg4));
     return OMX_ErrorNone;
 }


 DECLARE_OMX_COMPONENT("OMX.Intel.VideoEncoder.MPEG4", "video_encoder.mpeg4", OMXVideoEncoderMPEG4);
	/*
	* Copyright (c) 2009-2011 Intel Corporation. All rights reserved.
	*
	* 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.
	*/


	#define LOG_TAG "OMXVideoEncoderMPEG4"
	#include "OMXVideoEncoderMPEG4.h"

	static const char *MPEG4_MIME_TYPE = "video/mpeg4";

	OMXVideoEncoderMPEG4::OMXVideoEncoderMPEG4() {
	LOGV("OMXVideoEncoderMPEG4 is constructed.");
	BuildHandlerList();
	mVideoEncoder = createVideoEncoder(MPEG4_MIME_TYPE);
	if (!mVideoEncoder) LOGE("OMX_ErrorInsufficientResources");
	}

	OMXVideoEncoderMPEG4::~OMXVideoEncoderMPEG4() {
	LOGV("OMXVideoEncoderMPEG4 is destructed.");
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::InitOutputPortFormatSpecific(OMX_PARAM_PORTDEFINITIONTYPE *paramPortDefinitionOutput) {
	// OMX_VIDEO_PARAM_MPEG4TYPE
	memset(&mParamMpeg4, 0, sizeof(mParamMpeg4));
	SetTypeHeader(&mParamMpeg4, sizeof(mParamMpeg4));
	mParamMpeg4.nPortIndex = OUTPORT_INDEX;
	mParamMpeg4.eProfile = OMX_VIDEO_MPEG4ProfileSimple;
	// TODO: Check eLevel (Level3)
	mParamMpeg4.eLevel = OMX_VIDEO_MPEG4Level5; //OMX_VIDEO_MPEG4Level3;

	// override OMX_PARAM_PORTDEFINITIONTYPE
	paramPortDefinitionOutput->nBufferCountActual = OUTPORT_ACTUAL_BUFFER_COUNT;
	paramPortDefinitionOutput->nBufferCountMin = OUTPORT_MIN_BUFFER_COUNT;
	paramPortDefinitionOutput->nBufferSize = OUTPORT_BUFFER_SIZE;
	paramPortDefinitionOutput->format.video.cMIMEType = (OMX_STRING)MPEG4_MIME_TYPE;
	paramPortDefinitionOutput->format.video.eCompressionFormat = OMX_VIDEO_CodingMPEG4;

	// override OMX_VIDEO_PARAM_PROFILELEVELTYPE
	// TODO: check if profile/level supported is correct
	mParamProfileLevel.eProfile = mParamMpeg4.eProfile;
	mParamProfileLevel.eLevel = mParamMpeg4.eLevel; //OMX_VIDEO_MPEG4Level5;

	// override OMX_VIDEO_CONFIG_INTEL_BITRATETYPE
	mConfigIntelBitrate.nInitialQP = 15; // Initial QP for I frames
	return OMX_ErrorNone;
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::SetVideoEncoderParam(void) {

	if (!mEncoderParams) {
	LOGE("NULL pointer: mEncoderParams");
	return OMX_ErrorBadParameter;
	}

	mVideoEncoder->getParameters(mEncoderParams);
	mEncoderParams->profile = (VAProfile)PROFILE_MPEG4SIMPLE;
	return OMXVideoEncoderBase::SetVideoEncoderParam();
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::ProcessorInit(void) {
	return OMXVideoEncoderBase::ProcessorInit();
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::ProcessorDeinit(void) {
	return OMXVideoEncoderBase::ProcessorDeinit();
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::ProcessorProcess(
	OMX_BUFFERHEADERTYPE **buffers,
	buffer_retain_t *retains,
	OMX_U32) {

	VideoEncOutputBuffer outBuf;
	VideoEncRawBuffer inBuf;
	Encode_Status ret = ENCODE_SUCCESS;

	OMX_U32 outfilledlen = 0;
	OMX_S64 outtimestamp = 0;
	OMX_U32 outflags = 0;
	OMX_ERRORTYPE oret = OMX_ErrorNone;


	LOGV_IF(buffers[INPORT_INDEX]->nFlags & OMX_BUFFERFLAG_EOS,
	"%s(),%d: got OMX_BUFFERFLAG_EOS\n", __func__, __LINE__);

	if (!buffers[INPORT_INDEX]->nFilledLen) {
	LOGV("%s(),%d: input buffer's nFilledLen is zero\n", __func__, __LINE__);
	goto out;
	}

	inBuf.data = buffers[INPORT_INDEX]->pBuffer + buffers[INPORT_INDEX]->nOffset;
	inBuf.size = buffers[INPORT_INDEX]->nFilledLen;
	inBuf.type = FTYPE_UNKNOWN;
	inBuf.flag = 0;
	inBuf.timeStamp = buffers[INPORT_INDEX]->nTimeStamp;

	LOGV("inBuf.data=%x, size=%d", (unsigned)inBuf.data, inBuf.size);

	outBuf.data =
	buffers[OUTPORT_INDEX]->pBuffer + buffers[OUTPORT_INDEX]->nOffset;
	outBuf.dataSize = 0;
	outBuf.bufferSize = buffers[OUTPORT_INDEX]->nAllocLen - buffers[OUTPORT_INDEX]->nOffset;


	if (mFrameRetrieved) {
	// encode and setConfig need to be thread safe
	pthread_mutex_unlock(&mSerializationLock);
	ret = mVideoEncoder->encode(&inBuf);
	pthread_mutex_unlock(&mSerializationLock);

	CHECK_ENCODE_STATUS("encode");
	mFrameRetrieved = OMX_FALSE;

	// This is for buffer contention, we won't release current buffer
	// but the last input buffer
	ports[INPORT_INDEX]->ReturnAllRetainedBuffers();
	}

	if (mFirstFrame) {
	LOGV("mFirstFrame\n");
	outBuf.format = OUTPUT_CODEC_DATA;
	ret = mVideoEncoder->getOutput(&outBuf);
	CHECK_ENCODE_STATUS("getOutput");
	// Return code could not be ENCODE_BUFFER_TOO_SMALL
	// If we don't return error, we will have dead lock issue
	if (ret == ENCODE_BUFFER_TOO_SMALL) {
	return OMX_ErrorUndefined;
	}

	LOGV("output codec data size = %d", outBuf.dataSize);

	outflags \|= OMX_BUFFERFLAG_CODECCONFIG;
	outflags \|= OMX_BUFFERFLAG_ENDOFFRAME;
	outflags \|= OMX_BUFFERFLAG_SYNCFRAME;

	retains[INPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;
	outfilledlen = outBuf.dataSize;
	mFirstFrame = OMX_FALSE;
	} else {
	if (mSyncEncoding == OMX_FALSE && mFrameInputCount == 1) {
	retains[INPORT_INDEX] = BUFFER_RETAIN_ACCUMULATE;
	retains[OUTPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;
	mFrameRetrieved = OMX_TRUE;
	goto out;
	}

	outBuf.format = OUTPUT_EVERYTHING;
	mVideoEncoder->getOutput(&outBuf);
	CHECK_ENCODE_STATUS("getOutput");

	LOGV("output data size = %d", outBuf.dataSize);


	outfilledlen = outBuf.dataSize;
	outtimestamp = outBuf.timeStamp;

	if (outBuf.flag & ENCODE_BUFFERFLAG_SYNCFRAME) {
	outflags \|= OMX_BUFFERFLAG_SYNCFRAME;
	}

	if (outBuf.flag & ENCODE_BUFFERFLAG_ENDOFFRAME) {
	LOGV("Get buffer done\n");
	outflags \|= OMX_BUFFERFLAG_ENDOFFRAME;
	mFrameRetrieved = OMX_TRUE;
	if (mSyncEncoding)
	retains[INPORT_INDEX] = BUFFER_RETAIN_NOT_RETAIN;
	else
	retains[INPORT_INDEX] = BUFFER_RETAIN_ACCUMULATE;

	} else {
	retains[INPORT_INDEX] = BUFFER_RETAIN_GETAGAIN; //get again

	}

	}

	if (outfilledlen > 0) {
	retains[OUTPORT_INDEX] = BUFFER_RETAIN_NOT_RETAIN;
	} else {
	retains[OUTPORT_INDEX] = BUFFER_RETAIN_GETAGAIN;
	}



	#if SHOW_FPS
	{
	struct timeval t;
	OMX_TICKS current_ts, interval_ts;
	float current_fps, average_fps;

	t.tv_sec = t.tv_usec = 0;
	gettimeofday(&t, NULL);

	current_ts =
	(nsecs_t)t.tv_sec * 1000000000 + (nsecs_t)t.tv_usec * 1000;
	interval_ts = current_ts - lastTs;
	lastTs = current_ts;

	current_fps = (float)1000000000 / (float)interval_ts;
	average_fps = (current_fps + lastFps) / 2;
	lastFps = current_fps;

	LOGV("FPS = %2.1f\n", average_fps);
	}
	#endif

	out:

	if (retains[OUTPORT_INDEX] != BUFFER_RETAIN_GETAGAIN) {
	buffers[OUTPORT_INDEX]->nFilledLen = outfilledlen;
	buffers[OUTPORT_INDEX]->nTimeStamp = outtimestamp;
	buffers[OUTPORT_INDEX]->nFlags = outflags;
	}

	if (retains[INPORT_INDEX] == BUFFER_RETAIN_NOT_RETAIN \|\|
	retains[INPORT_INDEX] == BUFFER_RETAIN_ACCUMULATE ) {
	mFrameInputCount ++;
	}

	if (retains[OUTPORT_INDEX] == BUFFER_RETAIN_NOT_RETAIN)
	mFrameOutputCount ++;

	return oret;

	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::BuildHandlerList(void) {
	OMXVideoEncoderBase::BuildHandlerList();
	AddHandler(OMX_IndexParamVideoMpeg4, GetParamVideoMpeg4, SetParamVideoMpeg4);
	AddHandler(OMX_IndexParamVideoProfileLevelQuerySupported, GetParamVideoProfileLevelQuerySupported, SetParamVideoProfileLevelQuerySupported);
	return OMX_ErrorNone;
	}


	OMX_ERRORTYPE OMXVideoEncoderMPEG4::GetParamVideoProfileLevelQuerySupported(OMX_PTR pStructure) {
	OMX_ERRORTYPE ret;
	OMX_VIDEO_PARAM_PROFILELEVELTYPE p = (OMX_VIDEO_PARAM_PROFILELEVELTYPE )pStructure;
	CHECK_TYPE_HEADER(p);
	CHECK_PORT_INDEX(p, OUTPORT_INDEX);

	struct ProfileLevelTable {
	OMX_U32 profile;
	OMX_U32 level;
	} plTable[] = {
	{OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level5},
	};

	OMX_U32 count = sizeof(plTable)/sizeof(ProfileLevelTable);
	CHECK_ENUMERATION_RANGE(p->nProfileIndex,count);

	p->eProfile = plTable[p->nProfileIndex].profile;
	p->eLevel = plTable[p->nProfileIndex].level;

	return OMX_ErrorNone;
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::SetParamVideoProfileLevelQuerySupported(OMX_PTR) {
	LOGW("SetParamVideoMpeg4ProfileLevel is not supported.");
	return OMX_ErrorUnsupportedSetting;
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::GetParamVideoMpeg4(OMX_PTR pStructure) {
	OMX_ERRORTYPE ret;
	OMX_VIDEO_PARAM_MPEG4TYPE p = (OMX_VIDEO_PARAM_MPEG4TYPE )pStructure;
	CHECK_TYPE_HEADER(p);
	CHECK_PORT_INDEX(p, OUTPORT_INDEX);

	memcpy(p, &mParamMpeg4, sizeof(*p));
	return OMX_ErrorNone;
	}

	OMX_ERRORTYPE OMXVideoEncoderMPEG4::SetParamVideoMpeg4(OMX_PTR pStructure) {
	OMX_ERRORTYPE ret;
	OMX_VIDEO_PARAM_MPEG4TYPE p = (OMX_VIDEO_PARAM_MPEG4TYPE )pStructure;
	CHECK_TYPE_HEADER(p);
	CHECK_PORT_INDEX(p, OUTPORT_INDEX);
	CHECK_SET_PARAM_STATE();

	// TODO: do we need to check if port is enabled?
	// TODO: see SetPortMpeg4Param implementation - Can we make simple copy????
	memcpy(&mParamMpeg4, p, sizeof(mParamMpeg4));
	return OMX_ErrorNone;
	}


	DECLARE_OMX_COMPONENT("OMX.Intel.VideoEncoder.MPEG4", "video_encoder.mpeg4", OMXVideoEncoderMPEG4);