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C++ OMX_INIT_STRUCTURE函数代码示例

本文整理汇总了C++中OMX_INIT_STRUCTURE函数的典型用法代码示例。如果您正苦于以下问题：C++ OMX_INIT_STRUCTURE函数的具体用法？C++ OMX_INIT_STRUCTURE怎么用？C++ OMX_INIT_STRUCTURE使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了OMX_INIT_STRUCTURE函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: Lock

OMX_ERRORTYPE COMXCoreComponent::EnablePort(unsigned int port,  bool wait)
{
  Lock();

  OMX_ERRORTYPE omx_err = OMX_ErrorNone;

  OMX_PARAM_PORTDEFINITIONTYPE portFormat;
  OMX_INIT_STRUCTURE(portFormat);
  portFormat.nPortIndex = port;

  omx_err = OMX_GetParameter(m_handle, OMX_IndexParamPortDefinition, &portFormat);
  if(omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "COMXCoreComponent::EnablePort - Error get port %d status on component %s omx_err(0x%08x)", 
        port, m_componentName.c_str(), (int)omx_err);
  }

  if(portFormat.bEnabled == OMX_FALSE)
  {
    omx_err = OMX_SendCommand(m_handle, OMX_CommandPortEnable, port, NULL);
    if(omx_err != OMX_ErrorNone)
    {
      CLog::Log(LOGERROR, "COMXCoreComponent::EnablePort - Error enable port %d on component %s omx_err(0x%08x)", 
          port, m_componentName.c_str(), (int)omx_err);
      {
        UnLock();
        return omx_err;
      }
    }
    else
    {
      if(wait)
        omx_err = WaitForCommand(OMX_CommandPortEnable, port);
    }
  }

  UnLock();

  return omx_err;
}
开发者ID:RobertMe，项目名称:xbmc，代码行数:40，代码来源:OMXCore.cpp

示例2: Lock

double OMXClock::OMXClockAdjustment(bool lock /* = true */)
{
	if(m_omx_clock.GetComponent() == NULL)
	{
		return 0;
	}

	if(lock)
	{
		Lock();
	}

	OMX_ERRORTYPE error = OMX_ErrorNone;
	double pts = 0;

	OMX_TIME_CONFIG_TIMESTAMPTYPE timeStamp;
	OMX_INIT_STRUCTURE(timeStamp);
	timeStamp.nPortIndex = m_omx_clock.GetInputPort();

	error = m_omx_clock.GetConfig(OMX_IndexConfigClockAdjustment, &timeStamp);
	if(error != OMX_ErrorNone)
	{
		ofLogError(__func__) << "GetConfig OMX_IndexConfigClockAdjustment FAIL: " << COMXCore::getOMXError(error);
		if(lock)
		{
			UnLock();
		}
		return 0;
	}

	pts = (double)FromOMXTime(timeStamp.nTimestamp);
	
	//ofLogVerbose(__func__) << "nTimestamp: " << (double)FromOMXTime(timeStamp.nTimestamp) << " pts " << pts;
	if(lock)
	{
		UnLock();
	}

	return pts;
}
开发者ID:kimitobo，项目名称:ofxOMXPlayer，代码行数:40，代码来源:OMXClock.cpp

示例3: Lock

// Set the media time, so calls to get media time use the updated value,
// useful after a seek so mediatime is updated immediately (rather than waiting for first decoded packet)
bool OMXClock::OMXMediaTime(double pts, bool lock /* = true*/)
{
  if(m_omx_clock.GetComponent() == NULL)
    return false;

  if(lock)
    Lock();

  OMX_ERRORTYPE omx_err = OMX_ErrorNone;
  OMX_INDEXTYPE index;
  OMX_TIME_CONFIG_TIMESTAMPTYPE timeStamp;
  OMX_INIT_STRUCTURE(timeStamp);
  timeStamp.nPortIndex = m_omx_clock.GetInputPort();

  if(m_eClock == OMX_TIME_RefClockAudio)
    index = OMX_IndexConfigTimeCurrentAudioReference;
  else
    index = OMX_IndexConfigTimeCurrentVideoReference;

  timeStamp.nTimestamp = ToOMXTime(pts);

  omx_err = m_omx_clock.SetConfig(index, &timeStamp);
  if(omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "OMXClock::OMXMediaTime error setting %s", index == OMX_IndexConfigTimeCurrentAudioReference ?
       "OMX_IndexConfigTimeCurrentAudioReference":"OMX_IndexConfigTimeCurrentVideoReference");
    if(lock)
      UnLock();
    return false;
  }

  CLog::Log(LOGDEBUG, "OMXClock::OMXMediaTime set config %s = %.2f", index == OMX_IndexConfigTimeCurrentAudioReference ?
       "OMX_IndexConfigTimeCurrentAudioReference":"OMX_IndexConfigTimeCurrentVideoReference", pts);

  m_last_media_time = 0.0f;
  if(lock)
    UnLock();

  return true;
}
开发者ID:68foxboris，项目名称:xbmc，代码行数:42，代码来源:OMXClock.cpp

示例4: Lock

bool OMXClock::OMXSetSpeed(int speed, bool lock /* = true */, bool pause_resume /* = false */)
{
  if(m_omx_clock.GetComponent() == NULL)
    return false;

  if(lock)
    Lock();

  sprintf(g_log_buf, "OMXClock::OMXSetSpeed(%.2f) pause_resume:%d",
          (float)speed / (float)DVD_PLAYSPEED_NORMAL, pause_resume);
  LOG_TRACE_2 << g_log_buf;

  if (pause_resume)
  {
    OMX_ERRORTYPE omx_err = OMX_ErrorNone;
    OMX_TIME_CONFIG_SCALETYPE scaleType;
    OMX_INIT_STRUCTURE(scaleType);

    if (TP(speed))
      scaleType.xScale = 0; // for trickplay we just pause, and single step
    else
      scaleType.xScale = (speed << 16) / DVD_PLAYSPEED_NORMAL;
    omx_err = m_omx_clock.SetConfig(OMX_IndexConfigTimeScale, &scaleType);
    if(omx_err != OMX_ErrorNone)
    {
      LOG_ERROR << "OMXClock::OMXSetSpeed error setting OMX_IndexConfigTimeClockState";
      if(lock)
        UnLock();
      return false;
    }
  }
  if (!pause_resume)
    m_omx_speed = speed;

  m_last_media_time = 0.0f;
  if(lock)
    UnLock();

  return true;
}
开发者ID:crocdialer，项目名称:KinskiGL，代码行数:40，代码来源:OMXClock.cpp

示例5: ilctts_set_dest

int32_t ilctts_set_dest(TTSRENDER_STATE_T *st, const char *name) {
	OMX_ERRORTYPE omx_err;
	OMX_CONFIG_BRCMAUDIODESTINATIONTYPE dest;
	char device[8];

	if ( (strcmp(name, "local") != 0) && (strcmp(name, "hdmi") != 0) )
		strcpy(device, "local");
	else
		strcpy(device, name);

	OMX_INIT_STRUCTURE(dest);
	strcpy((char *)dest.sName, device);

	 omx_err = OMX_SetConfig(ILC_GET_HANDLE(st->audio_render), OMX_IndexConfigBrcmAudioDestination, &dest);
 	if (omx_err != OMX_ErrorNone) {
		ERROR("OMX_SetConfig returned error in ilctts_set_dest: %d", omx_err);
		return -1;
	}

	SHOW(LOGLEVEL_3, "Audio device set to: %s", device);
	return 0;
} // end ilctts_set_dest
开发者ID:cromarty，项目名称:ttsprojects，代码行数:22，代码来源:core.c

示例6: OMX_INIT_STRUCTURE

bool OMXClock::OMXSpeed(int speed)
{
  if(m_omx_clock.GetComponent() == NULL)
    return false;

  OMX_ERRORTYPE omx_err = OMX_ErrorNone;
  OMX_TIME_CONFIG_SCALETYPE scaleType;
  OMX_INIT_STRUCTURE(scaleType);

  scaleType.xScale = (speed << 16);

  m_play_speed = speed;

  omx_err = OMX_SetConfig(m_omx_clock.GetComponent(), OMX_IndexConfigTimeScale, &scaleType);
  if(omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "OMXClock::Speed error setting OMX_IndexConfigTimeClockState\n");
    return false;
  }

  return true;
}
开发者ID:Bengt，项目名称:omxplayer，代码行数:22，代码来源:OMXClock.cpp

示例7: lock

bool COMXVideo::GetPlayerInfo(double &match, double &phase, double &pll)
{
  CSingleLock lock (m_critSection);
  OMX_ERRORTYPE omx_err;
  OMX_CONFIG_BRCMRENDERSTATSTYPE renderstats;

  if (!m_hdmi_clock_sync || !m_omx_render.IsInitialized())
    return false;
  OMX_INIT_STRUCTURE(renderstats);
  renderstats.nPortIndex = m_omx_render.GetInputPort();

  omx_err = m_omx_render.GetParameter(OMX_IndexConfigBrcmRenderStats, &renderstats);
  if(omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "COMXVideo::GetPlayerInfo error GetParameter OMX_IndexParamPortDefinition omx_err(0x%08x)\n", omx_err);
    return false;
  }
  match = renderstats.nMatch * 1e-6;
  phase = (double)renderstats.nPhase / (double)renderstats.nPeriod;
  pll   = (double)renderstats.nPixelClock / (double)renderstats.nPixelClockNominal;
  return true;
}
开发者ID:asskikerus，项目名称:xbmc，代码行数:22，代码来源:OMXVideo.cpp

示例8: Lock

bool OMXClock::SetSpeed(int speed, bool lock, bool pause_resume)
{
	if (!GetComponent())
		return false;

	if (lock)
		Lock();

	if (pause_resume)
	{
		OMX_ERRORTYPE omxErr = OMX_ErrorNone;
		OMX_TIME_CONFIG_SCALETYPE scaleType;
		OMX_INIT_STRUCTURE(scaleType);

		if (TP(speed))
			scaleType.xScale = 0;
		else
			scaleType.xScale = (speed << 16) / CLOCK_PLAYSPEED_NORMAL;

		omxErr = SetConfig(OMX_IndexConfigTimeScale, &scaleType);
		if (omxErr != OMX_ErrorNone)
		{
			if (lock)
				Unlock();

			return false;
		}
	}
	else
		m_omxSpeed = speed;

	m_lastMediaTime = 0.0f;

	if (lock)
		Unlock();

	return true;
}
开发者ID:VRocker，项目名称:DashPi，代码行数:38，代码来源:OMXClock.cpp

示例9: OMX_INIT_STRUCTURE

OMX_ERRORTYPE COpenMaxVideo::AllocOMXInputBuffers(void)
{
  OMX_ERRORTYPE omx_err = OMX_ErrorNone;

  // Obtain the information about the decoder input port.
  OMX_PARAM_PORTDEFINITIONTYPE port_format;
  OMX_INIT_STRUCTURE(port_format);
  port_format.nPortIndex = m_omx_input_port;
  OMX_GetParameter(m_omx_decoder, OMX_IndexParamPortDefinition, &port_format);

  #if defined(OMX_DEBUG_VERBOSE)
  CLog::Log(LOGDEBUG,
    "%s::%s - iport(%d), nBufferCountMin(%lu), nBufferSize(%lu)\n",
    CLASSNAME, __func__, m_omx_input_port, port_format.nBufferCountMin, port_format.nBufferSize);
  #endif
  for (size_t i = 0; i < port_format.nBufferCountMin; i++)
  {
    OMX_BUFFERHEADERTYPE *buffer = NULL;
    // use an external buffer that's sized according to actual demux
    // packet size, start at internal's buffer size, will get deleted when
    // we start pulling demuxer packets and using demux packet sized buffers.
    OMX_U8* data = new OMX_U8[port_format.nBufferSize];
    omx_err = OMX_UseBuffer(m_omx_decoder, &buffer, m_omx_input_port, NULL, port_format.nBufferSize, data);
    if (omx_err)
    {
      CLog::Log(LOGERROR, "%s::%s - OMX_UseBuffer failed with omx_err(0x%x)\n",
        CLASSNAME, __func__, omx_err);
      return(omx_err);
    }
    m_omx_input_buffers.push_back(buffer);
    // don't have to lock/unlock here, we are not decoding
    m_omx_input_avaliable.push(buffer);
  }
  m_omx_input_eos = false;

  return(omx_err);
}
开发者ID:Foozle303，项目名称:xbmc，代码行数:37，代码来源:OpenMaxVideo.cpp

示例10: OMX_INIT_STRUCTURE

bool OMXClock::OMXInitialize(bool has_video, bool has_audio)
{
	OMX_ERRORTYPE error = OMX_ErrorNone;
	const std::string componentName = "OMX.broadcom.clock";

	m_has_video = has_video;
	m_has_audio = has_audio;

	m_pause       = false;

	if(!m_omx_clock.Initialize(componentName, OMX_IndexParamOtherInit))
	{
		return false;
	}

	OMX_TIME_CONFIG_ACTIVEREFCLOCKTYPE refClock;
	OMX_INIT_STRUCTURE(refClock);

	if(m_has_audio)
	{
		refClock.eClock = OMX_TIME_RefClockAudio;
	}
	else
	{
		refClock.eClock = OMX_TIME_RefClockVideo;
	}

	error = m_omx_clock.SetConfig(OMX_IndexConfigTimeActiveRefClock, &refClock);
	if(error != OMX_ErrorNone)
	{
		ofLogError(__func__) << " setting OMX_IndexConfigTimeCurrentAudioReference";
		return false;
	}

	return true;
}
开发者ID:kimitobo，项目名称:ofxOMXPlayer，代码行数:36，代码来源:OMXClock.cpp

示例11: lock

OMX_ERRORTYPE Component::enablePort(unsigned int port)//default: wait=false
{
	lock();
    OMX_ERRORTYPE error;
    error = OMX_SendCommand(handle, OMX_CommandPortEnable, port, NULL);
    OMX_TRACE(error);
    unlock();
    return error;
    
#if 0
	OMX_PARAM_PORTDEFINITIONTYPE portFormat;
	OMX_INIT_STRUCTURE(portFormat);
	portFormat.nPortIndex = port;

	OMX_ERRORTYPE error = OMX_GetParameter(handle, OMX_IndexParamPortDefinition, &portFormat);
    OMX_TRACE(error);
#ifdef DEBUG_PORTS
    ofLogVerbose(__func__) << componentName << " port: " << port;
#endif
	if(portFormat.bEnabled == OMX_FALSE)
	{
		error = OMX_SendCommand(handle, OMX_CommandPortEnable, port, NULL);
        OMX_TRACE(error);

		if(error != OMX_ErrorNone)
		{
			unlock();
            return error;
		}
    }

	unlock();

	return error;
#endif
}
开发者ID:freesnail，项目名称:ofxOMXPlayer，代码行数:36，代码来源:Component.cpp

示例12: Lock

bool OMXClock::OMXSpeed(int speed, bool lock /* = true */)
{
  if(m_omx_clock.GetComponent() == NULL)
    return false;
  
  if(lock)
    Lock();

  OMX_ERRORTYPE omx_err = OMX_ErrorNone;
  OMX_TIME_CONFIG_SCALETYPE scaleType;
  OMX_INIT_STRUCTURE(scaleType);

  // Modification to adjust the scale accordingly, depending on video playback speed range being in normal or slow motion speed range.
  if (speed > OMX_SLOMO_MULTIPLIER)                                   // Normal speed range
      scaleType.xScale = ((speed / OMX_SLOMO_MULTIPLIER) << 16);      // The number 16 here has nothing to do with OMX_SLOMO_MULTIPLIER
  else if (speed >= 1)                                                // Slow Motion range
           scaleType.xScale = (1 << (int64_t)(12 + log2(speed)));     // This avoids "switch/case" statements but only works well for multiples of 2
       else
           scaleType.xScale = (speed << 16);                          // Kept like this for history. Same as "sacleType.xScale = 0;"

  m_play_speed = speed;

  omx_err = OMX_SetConfig(m_omx_clock.GetComponent(), OMX_IndexConfigTimeScale, &scaleType);
  if(omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "OMXClock::Speed error setting OMX_IndexConfigTimeClockState\n");
    if(lock)
      UnLock();
    return false;
  }

  if(lock)
    UnLock();

  return true;
}
开发者ID:mikecernio，项目名称:omxplayer，代码行数:36，代码来源:OMXClock.cpp

示例13: setup_tunnel

static void
setup_tunnel(rpi_pixmap_decoder_t *rpd)
{
  int dst_width, dst_height;
  OMX_PARAM_PORTDEFINITIONTYPE portdef;

  if(rpd->rpd_tunnel != NULL)
    return;

  OMX_INIT_STRUCTURE(portdef);
  portdef.nPortIndex = rpd->rpd_decoder->oc_outport;
  omxchk(OMX_GetParameter(rpd->rpd_decoder->oc_handle,
			  OMX_IndexParamPortDefinition, &portdef));

  pixmap_compute_rescale_dim(rpd->rpd_im,
			     portdef.format.image.nFrameWidth,
			     portdef.format.image.nFrameHeight,
			     &dst_width, &dst_height);

  portdef.nPortIndex = rpd->rpd_resizer->oc_inport;
  omxchk(OMX_SetParameter(rpd->rpd_resizer->oc_handle,
			  OMX_IndexParamPortDefinition, &portdef));

  rpd->rpd_tunnel = omx_tunnel_create(rpd->rpd_decoder,
				      rpd->rpd_decoder->oc_outport,
				      rpd->rpd_resizer,
				      rpd->rpd_resizer->oc_inport,
				      "decoder -> resizer");
  OMX_INIT_STRUCTURE(portdef);

  portdef.nPortIndex = rpd->rpd_resizer->oc_outport;
  omxchk(OMX_GetParameter(rpd->rpd_resizer->oc_handle,
			  OMX_IndexParamPortDefinition, &portdef));

  int stride = (dst_width * 4 + PIXMAP_ROW_ALIGN - 1) & ~(PIXMAP_ROW_ALIGN - 1);

  portdef.format.image.eCompressionFormat    = OMX_IMAGE_CodingUnused;
  portdef.format.image.eColorFormat          = OMX_COLOR_Format32bitABGR8888;
  portdef.format.image.nFrameWidth           = dst_width;
  portdef.format.image.nFrameHeight          = dst_height;
  portdef.format.image.nStride               = stride;
  portdef.format.image.nSliceHeight          = 0;
  portdef.format.image.bFlagErrorConcealment = OMX_FALSE;

  omxchk(OMX_SetParameter(rpd->rpd_resizer->oc_handle,
			  OMX_IndexParamPortDefinition, &portdef));

  omxchk(OMX_GetParameter(rpd->rpd_resizer->oc_handle,
			  OMX_IndexParamPortDefinition, &portdef));

  omx_set_state(rpd->rpd_resizer, OMX_StateExecuting);
  omx_port_enable(rpd->rpd_resizer, rpd->rpd_resizer->oc_outport);

  pixmap_t *pm = rpd->rpd_pm = calloc(1, sizeof(pixmap_t));
  pm->pm_refcount = 1;
  pm->pm_width    = portdef.format.image.nFrameWidth;
  pm->pm_height   = portdef.format.image.nFrameHeight;
  pm->pm_linesize = portdef.format.image.nStride;
  pm->pm_type     = PIXMAP_BGR32;
  pm->pm_data     = mymemalign(portdef.nBufferAlignment, portdef.nBufferSize);
  pm->pm_aspect   = (float)pm->pm_width / (float)pm->pm_height;

  omxchk(OMX_UseBuffer(rpd->rpd_resizer->oc_handle, &rpd->rpd_buf,
		       rpd->rpd_resizer->oc_outport,
		       NULL, portdef.nBufferSize, pm->pm_data));

  omx_wait_command(rpd->rpd_resizer);
  omxchk(OMX_FillThisBuffer(rpd->rpd_resizer->oc_handle, rpd->rpd_buf));
}
开发者ID:Bibamaru，项目名称:showtime，代码行数:69，代码来源:rpi_pixmap.c

示例14: OMX_INIT_STRUCTURE

OMX_ERRORTYPE COMXCoreComponent::AllocOutputBuffers(bool use_buffers /* = false */)
{
  OMX_ERRORTYPE omx_err = OMX_ErrorNone;

  if(!m_handle)
    return OMX_ErrorUndefined;

  m_omx_output_use_buffers = use_buffers; 

  OMX_PARAM_PORTDEFINITIONTYPE portFormat;
  OMX_INIT_STRUCTURE(portFormat);
  portFormat.nPortIndex = m_output_port;

  omx_err = OMX_GetParameter(m_handle, OMX_IndexParamPortDefinition, &portFormat);
  if(omx_err != OMX_ErrorNone)
    return omx_err;

  if(GetState() != OMX_StateIdle)
  {
    if(GetState() != OMX_StateLoaded)
      SetStateForComponent(OMX_StateLoaded);

    SetStateForComponent(OMX_StateIdle);
  }

  omx_err = EnablePort(m_output_port, false);
  if(omx_err != OMX_ErrorNone)
    return omx_err;

  m_output_alignment     = portFormat.nBufferAlignment;
  m_output_buffer_count  = portFormat.nBufferCountActual;
  m_output_buffer_size   = portFormat.nBufferSize;

  CLog::Log(LOGDEBUG, "COMXCoreComponent::AllocOutputBuffers component(%s) - port(%d), nBufferCountMin(%lu), nBufferCountActual(%lu), nBufferSize(%lu) nBufferAlignmen(%lu)\n",
            m_componentName.c_str(), m_output_port, portFormat.nBufferCountMin,
            portFormat.nBufferCountActual, portFormat.nBufferSize, portFormat.nBufferAlignment);

  for (size_t i = 0; i < portFormat.nBufferCountActual; i++)
  {
    OMX_BUFFERHEADERTYPE *buffer = NULL;
    OMX_U8* data = NULL;

    if(m_omx_output_use_buffers)
    {
      data = (OMX_U8*)_aligned_malloc(portFormat.nBufferSize, m_output_alignment);
      omx_err = OMX_UseBuffer(m_handle, &buffer, m_output_port, NULL, portFormat.nBufferSize, data);
    }
    else
    {
      omx_err = OMX_AllocateBuffer(m_handle, &buffer, m_output_port, NULL, portFormat.nBufferSize);
    }
    if(omx_err != OMX_ErrorNone)
    {
      CLog::Log(LOGERROR, "COMXCoreComponent::AllocOutputBuffers component(%s) - OMX_UseBuffer failed with omx_err(0x%x)\n",
        m_componentName.c_str(), omx_err);

      if(m_omx_output_use_buffers && data)
       _aligned_free(data);

      return omx_err;
    }
    buffer->nOutputPortIndex = m_output_port;
    buffer->nFilledLen       = 0;
    buffer->nOffset          = 0;
    buffer->pAppPrivate      = (void*)i;
    m_omx_output_buffers.push_back(buffer);
    m_omx_output_available.push(buffer);
  }

  omx_err = WaitForCommand(OMX_CommandPortEnable, m_output_port);

  m_flush_output = false;

  return omx_err;
}
开发者ID:RobertMe，项目名称:xbmc，代码行数:75，代码来源:OMXCore.cpp

示例15: omx_err

bool COMXCoreComponent::Initialize( const std::string &component_name, OMX_INDEXTYPE index)
{
  OMX_ERRORTYPE omx_err;

  if(!m_DllOMX->Load())
    return false;

  m_DllOMXOpen = true;

  m_componentName = component_name;
  
  m_callbacks.EventHandler    = &COMXCoreComponent::DecoderEventHandlerCallback;
  m_callbacks.EmptyBufferDone = &COMXCoreComponent::DecoderEmptyBufferDoneCallback;
  m_callbacks.FillBufferDone  = &COMXCoreComponent::DecoderFillBufferDoneCallback;

  // Get video component handle setting up callbacks, component is in loaded state on return.
  omx_err = m_DllOMX->OMX_GetHandle(&m_handle, (char*)component_name.c_str(), this, &m_callbacks);
  if (omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "COMXCoreComponent::Initialize - could not get component handle for %s omx_err(0x%08x)\n", 
        component_name.c_str(), (int)omx_err);
    Deinitialize();
    return false;
  }

  OMX_PORT_PARAM_TYPE port_param;
  OMX_INIT_STRUCTURE(port_param);

  omx_err = OMX_GetParameter(m_handle, index, &port_param);
  if (omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "COMXCoreComponent::Initialize - could not get port_param for component %s omx_err(0x%08x)\n", 
        component_name.c_str(), (int)omx_err);
  }

  omx_err = DisableAllPorts();
  if (omx_err != OMX_ErrorNone)
  {
    CLog::Log(LOGERROR, "COMXCoreComponent::Initialize - error disable ports on component %s omx_err(0x%08x)\n", 
        component_name.c_str(), (int)omx_err);
  }

  m_input_port  = port_param.nStartPortNumber;
  m_output_port = m_input_port + 1;

  if(m_componentName == "OMX.broadcom.audio_mixer")
  {
    m_input_port  = port_param.nStartPortNumber + 1;
    m_output_port = port_param.nStartPortNumber;
  }

  if (m_output_port > port_param.nStartPortNumber+port_param.nPorts-1)
    m_output_port = port_param.nStartPortNumber+port_param.nPorts-1;

  CLog::Log(LOGDEBUG, "COMXCoreComponent::Initialize %s input port %d output port %d\n",
      m_componentName.c_str(), m_input_port, m_output_port);

  m_exit = false;
  m_flush_input   = false;
  m_flush_output  = false;

  return true;
}
开发者ID:RobertMe，项目名称:xbmc，代码行数:63，代码来源:OMXCore.cpp


注：本文中的OMX_INIT_STRUCTURE函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。