#include <OMX_Types.h>
#include <OMX_Component.h>
#include <OMX_Core.h>
#include <string.h>
#include <omx_base_filter.h>
#include <omx_base_audio_port.h>

Macros
#define	MIXER_COMP_NAME "OMX.st.audio.mixer"

#define	MIXER_COMP_ROLE "audio.mixer"

#define	MAX_MIXER_COMPONENTS 5

#define	MIXER_QUALITY_LEVELS 1

#define	MAX_PORTS 5

#define	MAX_CHANNEL 6

#define	omx_audio_mixer_component_PortType_FIELDS

#define	omx_audio_mixer_component_PrivateType_FIELDS

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 inputbuffer, OMX_BUFFERHEADERTYPE *outputbuffer)

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

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

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

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

void *	omx_audio_mixer_BufferMgmtFunction (void *param)

Macro Definition Documentation

#define MAX_CHANNEL 6

Definition at line 45 of file omx_audiomixer_component.h.

#define MAX_MIXER_COMPONENTS 5

Definition at line 39 of file omx_audiomixer_component.h.

Referenced by omx_audio_mixer_component_Constructor().

#define MAX_PORTS 5

Definition at line 44 of file omx_audiomixer_component.h.

Referenced by omx_audio_mixer_BufferMgmtFunction(), and omx_audio_mixer_component_Constructor().

#define MIXER_COMP_NAME "OMX.st.audio.mixer"

src/components/audio_effects/omx_audiomixer_component.h

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

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

Definition at line 37 of file omx_audiomixer_component.h.

Referenced by omx_audio_mixer_component_Constructor(), and omx_component_library_Setup().

#define MIXER_COMP_ROLE "audio.mixer"

Definition at line 38 of file omx_audiomixer_component.h.

Referenced by omx_audio_mixer_component_GetParameter(), omx_audio_mixer_component_SetParameter(), and omx_component_library_Setup().

#define MIXER_QUALITY_LEVELS 1

Definition at line 41 of file omx_audiomixer_component.h.

Referenced by omx_audio_mixer_component_Constructor(), and omx_component_library_Setup().

#define omx_audio_mixer_component_PortType_FIELDS

Value:

omx_base_audio_PortType_FIELDS \  \
  OMX_AUDIO_PARAM_PCMMODETYPE pAudioPcmMode; \ \
  float gain; \ \
  OMX_AUDIO_CONFIG_VOLUMETYPE sVolume; \ \
  OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE sChannelVolume[MAX_CHANNEL];

Audio Mixer port structure.

Definition at line 50 of file omx_audiomixer_component.h.

#define omx_audio_mixer_component_PrivateType_FIELDS

Value:

omx_base_filter_PrivateType_FIELDS \

omx_base_filter_PrivateType_FIELDS

#define omx_base_filter_PrivateType_FIELDS

Definition: omx_base_filter.h:52

Twoport component private structure. see the define above

Definition at line 65 of file omx_audiomixer_component.h.

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.

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 399 of file omx_audiomixer_component.c.

References checkAnyPortBeingFlushed(), 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_TransStateExecutingToIdle, OMX_TransStateLoadedToIdle, OMX_TransStatePauseToIdle, OMX_TRUE, OMX_COMPONENTTYPE::pComponentPrivate, PORT_IS_BEING_FLUSHED, PORT_IS_ENABLED, tsem_down(), tsem_up(), 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 159 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
	)

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 35 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_MIXER_COMPONENTS, MAX_PORTS, MIXER_COMP_NAME, MIXER_QUALITY_LEVELS, 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, RM_RegisterComponent(), 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 134 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_HANDLETYPE	hComponent,
		OMX_INDEXTYPE	nIndex,
		OMX_PTR	pComponentConfigStructure
	)

Definition at line 227 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_HANDLETYPE	hComponent,
		OMX_INDEXTYPE	nParamIndex,
		OMX_PTR	ComponentParameterStructure
	)

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

setting configurations

Definition at line 194 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_HANDLETYPE	hComponent,
		OMX_INDEXTYPE	nParamIndex,
		OMX_PTR	ComponentParameterStructure
	)

Macros

Functions

Macro Definition Documentation

Function Documentation