omx_audiomixer_component.c File Reference

#include <omxcore.h>
#include <omx_base_audio_port.h>
#include <omx_audiomixer_component.h>
#include <OMX_Audio.h>

Go to the source code of this file.

Defines

#define OMX_AUDIO_MIXER_INPUTPORT_INDEX   0
#define OMX_AUDIO_MIXER_INPUTPORT_INDEX_1   1
#define OMX_AUDIO_MIXER_OUTPUTPORT_INDEX   2
#define GAIN_VALUE   100.0f
#define MAX_COMPONENT_AUDIO_MIXER   1

Functions

OMX_ERRORTYPE omx_audio_mixer_component_Constructor (OMX_COMPONENTTYPE *openmaxStandComp, OMX_STRING cComponentName)
OMX_ERRORTYPE omx_audio_mixer_component_Destructor (OMX_COMPONENTTYPE *openmaxStandComp)
void omx_audio_mixer_component_BufferMgmtCallback (OMX_COMPONENTTYPE *openmaxStandComp, OMX_BUFFERHEADERTYPE *pInBuffer, OMX_BUFFERHEADERTYPE *pOutBuffer)
OMX_ERRORTYPE omx_audio_mixer_component_SetConfig (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nIndex, OMX_IN OMX_PTR pComponentConfigStructure)
OMX_ERRORTYPE omx_audio_mixer_component_GetConfig (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nIndex, OMX_INOUT OMX_PTR pComponentConfigStructure)
OMX_ERRORTYPE omx_audio_mixer_component_SetParameter (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nParamIndex, OMX_IN OMX_PTR ComponentParameterStructure)
OMX_ERRORTYPE omx_audio_mixer_component_GetParameter (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nParamIndex, OMX_INOUT OMX_PTR ComponentParameterStructure)
void * omx_audio_mixer_BufferMgmtFunction (void *param)


Detailed Description

OpenMAX audio mixer control component. This component implements a mixer that mixes multiple audio PCM streams and produces a single output stream.

Copyright (C) 2008 STMicroelectronics Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Date
2008-07-02 15:17:00 +0200 (Wed, 02 Jul 2008)
Revision
Rev
557
Author
Author
gsent

Definition in file omx_audiomixer_component.c.


Define Documentation

#define GAIN_VALUE   100.0f

Definition at line 40 of file omx_audiomixer_component.c.

Referenced by omx_audio_mixer_component_Constructor(), omx_volume_component_BufferMgmtCallback(), and omx_volume_component_Constructor().

#define MAX_COMPONENT_AUDIO_MIXER   1

Definition at line 43 of file omx_audiomixer_component.c.

Referenced by omx_audio_mixer_component_Constructor().

#define OMX_AUDIO_MIXER_INPUTPORT_INDEX   0

Definition at line 35 of file omx_audiomixer_component.c.

#define OMX_AUDIO_MIXER_INPUTPORT_INDEX_1   1

Definition at line 36 of file omx_audiomixer_component.c.

#define OMX_AUDIO_MIXER_OUTPUTPORT_INDEX   2

Definition at line 37 of file omx_audiomixer_component.c.


Function Documentation

void* omx_audio_mixer_BufferMgmtFunction ( void *  param  ) 

This is the central function for component processing,overridden for audio mixer. It is executed in a separate thread, is synchronized with semaphores at each port, those are released each time a new buffer is available on the given port.

Definition at line 358 of file omx_audiomixer_component.c.

References DEB_LEV_ERR, DEB_LEV_FULL_SEQ, DEB_LEV_FUNCTION_NAME, DEB_LEV_SIMPLE_SEQ, DEBUG, dequeue(), MAX_PORTS, OMX_BUFFERFLAG_EOS, OMX_EventBufferFlag, OMX_EventMark, OMX_FALSE, OMX_PortDomainAudio, OMX_StateExecuting, OMX_StateIdle, OMX_StateInvalid, OMX_StateLoaded, OMX_StatePause, OMX_TransStateLoadedToIdle, OMX_TRUE, OMX_COMPONENTTYPE::pComponentPrivate, PORT_IS_BEING_FLUSHED, PORT_IS_ENABLED, tsem_down(), and tsem_wait().

Referenced by omx_audio_mixer_component_Constructor().

void omx_audio_mixer_component_BufferMgmtCallback ( OMX_COMPONENTTYPE openmaxStandComp,
OMX_BUFFERHEADERTYPE pInBuffer,
OMX_BUFFERHEADERTYPE pOutBuffer 
)

This function is used to process the input buffer and provide one output buffer

Definition at line 165 of file omx_audiomixer_component.c.

References OMX_BUFFERHEADERTYPE::nFilledLen, OMX_BUFFERHEADERTYPE::nInputPortIndex, OMX_PortDomainAudio, OMX_BUFFERHEADERTYPE::pBuffer, OMX_COMPONENTTYPE::pComponentPrivate, and PORT_IS_ENABLED.

Referenced by omx_audio_mixer_component_Constructor().

OMX_ERRORTYPE omx_audio_mixer_component_Constructor ( OMX_COMPONENTTYPE openmaxStandComp,
OMX_STRING  cComponentName 
)

This class is empty for the time being

Calling base filter constructor

Allocate Ports and call port constructor.

Domain specific section for the ports.

< Is the volume to be set in linear (0.100) or logarithmic scale (mB)

< minimum for value (i.e. nValue >= nMin)

Definition at line 49 of file omx_audiomixer_component.c.

References base_audio_port_Constructor(), DEB_LEV_FUNCTION_NAME, DEBUG, DEFAULT_OUT_BUFFER_SIZE, err, GAIN_VALUE, OMX_COMPONENTTYPE::GetConfig, OMX_COMPONENTTYPE::GetParameter, MAX_COMPONENT_AUDIO_MIXER, MAX_PORTS, omx_audio_mixer_BufferMgmtFunction(), omx_audio_mixer_component_BufferMgmtCallback(), omx_audio_mixer_component_Destructor(), omx_audio_mixer_component_GetConfig(), omx_audio_mixer_component_GetParameter(), omx_audio_mixer_component_SetConfig(), omx_audio_mixer_component_SetParameter(), OMX_AUDIO_PCMModeLinear, omx_base_filter_Constructor(), OMX_EndianBig, OMX_ErrorInsufficientResources, OMX_ErrorNone, OMX_FALSE, OMX_NumericalDataSigned, OMX_PortDomainAudio, OMX_TRUE, OMX_COMPONENTTYPE::pComponentPrivate, OMX_COMPONENTTYPE::SetConfig, setHeader(), and OMX_COMPONENTTYPE::SetParameter.

Referenced by omx_component_library_Setup().

OMX_ERRORTYPE omx_audio_mixer_component_Destructor ( OMX_COMPONENTTYPE openmaxStandComp  ) 

The destructor

Definition at line 141 of file omx_audiomixer_component.c.

References DEB_LEV_FUNCTION_NAME, DEBUG, omx_base_filter_Destructor(), OMX_ErrorNone, OMX_PortDomainAudio, and OMX_COMPONENTTYPE::pComponentPrivate.

Referenced by omx_audio_mixer_component_Constructor().

OMX_ERRORTYPE omx_audio_mixer_component_GetConfig ( OMX_IN OMX_HANDLETYPE  hComponent,
OMX_IN OMX_INDEXTYPE  nIndex,
OMX_INOUT OMX_PTR  pComponentConfigStructure 
)

Definition at line 233 of file omx_audiomixer_component.c.

References err, OMX_AUDIO_CONFIG_VOLUMETYPE::nPortIndex, omx_base_component_GetConfig(), OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexConfigAudioVolume, OMX_PortDomainAudio, OMX_COMPONENTTYPE::pComponentPrivate, and OMX_AUDIO_CONFIG_VOLUMETYPE::sVolume.

Referenced by omx_audio_mixer_component_Constructor().

OMX_ERRORTYPE omx_audio_mixer_component_GetParameter ( OMX_IN OMX_HANDLETYPE  hComponent,
OMX_IN OMX_INDEXTYPE  nParamIndex,
OMX_INOUT OMX_PTR  ComponentParameterStructure 
)

Definition at line 299 of file omx_audiomixer_component.c.

References checkHeader(), DEB_LEV_SIMPLE_SEQ, DEBUG, err, OMX_AUDIO_PARAM_PCMMODETYPE::nPortIndex, OMX_AUDIO_PARAM_PORTFORMATTYPE::nPortIndex, omx_base_component_GetParameter(), OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexParamAudioInit, OMX_IndexParamAudioPcm, OMX_IndexParamAudioPortFormat, OMX_PortDomainAudio, and OMX_COMPONENTTYPE::pComponentPrivate.

Referenced by omx_audio_mixer_component_Constructor().

OMX_ERRORTYPE omx_audio_mixer_component_SetConfig ( OMX_IN OMX_HANDLETYPE  hComponent,
OMX_IN OMX_INDEXTYPE  nIndex,
OMX_IN OMX_PTR  pComponentConfigStructure 
)

setting configurations

Definition at line 200 of file omx_audiomixer_component.c.

References DEB_LEV_SIMPLE_SEQ, DEBUG, err, OMX_AUDIO_CONFIG_VOLUMETYPE::nPortIndex, OMX_BS32::nValue, omx_base_component_SetConfig(), OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexConfigAudioVolume, OMX_PortDomainAudio, OMX_COMPONENTTYPE::pComponentPrivate, and OMX_AUDIO_CONFIG_VOLUMETYPE::sVolume.

Referenced by omx_audio_mixer_component_Constructor().

OMX_ERRORTYPE omx_audio_mixer_component_SetParameter ( OMX_IN OMX_HANDLETYPE  hComponent,
OMX_IN OMX_INDEXTYPE  nParamIndex,
OMX_IN OMX_PTR  ComponentParameterStructure 
)

Definition at line 259 of file omx_audiomixer_component.c.

References DEB_LEV_ERR, DEB_LEV_SIMPLE_SEQ, DEBUG, err, OMX_AUDIO_PARAM_PORTFORMATTYPE::nPortIndex, omx_base_component_ParameterSanityCheck(), omx_base_component_SetParameter(), OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexParamAudioPortFormat, OMX_PortDomainAudio, and OMX_COMPONENTTYPE::pComponentPrivate.

Referenced by omx_audio_mixer_component_Constructor().


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