omx_filereader_component.h File Reference

#include <OMX_Types.h>
#include <OMX_Component.h>
#include <OMX_Core.h>
#include <OMX_Audio.h>
#include <pthread.h>
#include <omx_base_source.h>
#include <string.h>
#include <ffmpeg/avcodec.h>
#include <ffmpeg/avformat.h>
#include <ffmpeg/avio.h>

Go to the source code of this file.

Defines

#define MAX_NUM_OF_filereader_component_INSTANCES   1
#define omx_filereader_component_PrivateType_FIELDS

Functions

OMX_ERRORTYPE omx_filereader_component_Constructor (OMX_COMPONENTTYPE *openmaxStandComp, OMX_STRING cComponentName)
OMX_ERRORTYPE omx_filereader_component_Destructor (OMX_COMPONENTTYPE *openmaxStandComp)
OMX_ERRORTYPE omx_filereader_component_MessageHandler (OMX_COMPONENTTYPE *, internalRequestMessageType *)
OMX_ERRORTYPE omx_filereader_component_Init (OMX_COMPONENTTYPE *openmaxStandComp)
OMX_ERRORTYPE omx_filereader_component_Deinit (OMX_COMPONENTTYPE *openmaxStandComp)
void omx_filereader_component_BufferMgmtCallback (OMX_COMPONENTTYPE *openmaxStandComp, OMX_BUFFERHEADERTYPE *outputbuffer)
OMX_ERRORTYPE omx_filereader_component_GetParameter (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nParamIndex, OMX_INOUT OMX_PTR ComponentParameterStructure)
OMX_ERRORTYPE omx_filereader_component_SetParameter (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nParamIndex, OMX_IN OMX_PTR ComponentParameterStructure)
OMX_ERRORTYPE omx_filereader_component_SetConfig (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nIndex, OMX_IN OMX_PTR pComponentConfigStructure)
OMX_ERRORTYPE omx_filereader_component_GetConfig (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_INDEXTYPE nIndex, OMX_IN OMX_PTR pComponentConfigStructure)
OMX_ERRORTYPE omx_filereader_component_GetExtensionIndex (OMX_IN OMX_HANDLETYPE hComponent, OMX_IN OMX_STRING cParameterName, OMX_OUT OMX_INDEXTYPE *pIndexType)


Detailed Description

OpenMAX file reader component. This component is a file reader that detects the input file format so that client calls the appropriate decoder.

Copyright (C) 2007-2008 STMicroelectronics Copyright (C) 2007-2008 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
2008-06-27 12:00:23 +0200 (Fri, 27 Jun 2008)
Revision
Rev
554
Author
Author
pankaj_sen

Definition in file omx_filereader_component.h.


Define Documentation

#define MAX_NUM_OF_filereader_component_INSTANCES   1

Maximum number of base_component component instances

Definition at line 58 of file omx_filereader_component.h.

#define omx_filereader_component_PrivateType_FIELDS

Value:

omx_base_source_PrivateType_FIELDS \ \
  OMX_TIME_CONFIG_TIMESTAMPTYPE sTimeStamp; \ \
  AVFormatContext *avformatcontext; \ \
  AVFormatParameters *avformatparameters; \ \
  AVInputFormat *avinputformat; \ \
  AVPacket pkt; \ \
  OMX_STRING sInputFileName; \ \
  OMX_U32 audio_coding_type; \ \
  tsem_t* avformatSyncSem; \ \
  OMX_BOOL avformatReady;  \ \
  OMX_BOOL bIsEOSSent;
Filereader component private structure. see the define above

Definition at line 64 of file omx_filereader_component.h.


Function Documentation

void omx_filereader_component_BufferMgmtCallback ( OMX_COMPONENTTYPE openmaxStandComp,
OMX_BUFFERHEADERTYPE pOutputBuffer 
)

This function processes the input file and returns packet by packet as an output data this packet is used in audio decoder component for decoding

copying the packetized data in the output buffer that will be decoded in the decoder component

return the current output buffer

Definition at line 268 of file omx_filereader_component.c.

References DEB_LEV_ERR, DEB_LEV_FULL_SEQ, DEB_LEV_FUNCTION_NAME, DEB_LEV_SIMPLE_SEQ, DEBUG, OMX_BUFFERHEADERTYPE::nFilledLen, OMX_BUFFERHEADERTYPE::nFlags, OMX_BUFFERHEADERTYPE::nOffset, OMX_BUFFERHEADERTYPE::nTimeStamp, OMX_BUFFERFLAG_EOS, OMX_FALSE, OMX_StateExecuting, OMX_TRUE, OMX_BUFFERHEADERTYPE::pBuffer, OMX_COMPONENTTYPE::pComponentPrivate, and tsem_down().

Referenced by omx_filereader_component_Constructor().

OMX_ERRORTYPE omx_filereader_component_Constructor ( OMX_COMPONENTTYPE openmaxStandComp,
OMX_STRING  cComponentName 
)

The Constructor

Allocate Ports and call port constructor.

for the moment, the file reader works with audio component so the domain is set to audio in future it may be assigned after checking the input file format or there can be seperate file reader of video component

Definition at line 44 of file omx_filereader_component.c.

References base_audio_port_Constructor(), DEB_LEV_FUNCTION_NAME, DEBUG, DEFAULT_FILENAME_LENGTH, DEFAULT_OUT_BUFFER_SIZE, err, OMX_COMPONENTTYPE::GetConfig, OMX_COMPONENTTYPE::GetExtensionIndex, OMX_COMPONENTTYPE::GetParameter, MAX_COMPONENT_FILEREADER, OMX_PARAM_PORTDEFINITIONTYPE::nBufferSize, OMX_AUDIO_CodingMP3, omx_base_source_Constructor(), OMX_BASE_SOURCE_OUTPUTPORT_INDEX, OMX_ErrorInsufficientResources, OMX_ErrorNone, OMX_FALSE, omx_filereader_component_BufferMgmtCallback(), omx_filereader_component_Destructor(), omx_filereader_component_GetConfig(), omx_filereader_component_GetExtensionIndex(), omx_filereader_component_GetParameter(), omx_filereader_component_MessageHandler(), omx_filereader_component_SetConfig(), omx_filereader_component_SetParameter(), OMX_PortDomainAudio, OMX_COMPONENTTYPE::pComponentPrivate, OMX_COMPONENTTYPE::SetConfig, setHeader(), OMX_COMPONENTTYPE::SetParameter, omx_base_audio_PortType::sPortParam, and tsem_init().

Referenced by omx_component_library_Setup().

OMX_ERRORTYPE omx_filereader_component_Deinit ( OMX_COMPONENTTYPE openmaxStandComp  ) 

The DeInitialization function

closing input file

Definition at line 249 of file omx_filereader_component.c.

References DEB_LEV_FUNCTION_NAME, DEBUG, OMX_ErrorNone, OMX_FALSE, OMX_COMPONENTTYPE::pComponentPrivate, and tsem_reset().

Referenced by omx_filereader_component_MessageHandler().

OMX_ERRORTYPE omx_filereader_component_Destructor ( OMX_COMPONENTTYPE openmaxStandComp  ) 

The Destructor

Definition at line 132 of file omx_filereader_component.c.

References DEB_LEV_FUNCTION_NAME, DEBUG, omx_base_source_Destructor(), OMX_PortDomainAudio, OMX_COMPONENTTYPE::pComponentPrivate, and tsem_deinit().

Referenced by omx_filereader_component_Constructor().

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

setting configurations

Definition at line 523 of file omx_filereader_component.c.

References OMX_VENDOR_EXTRADATATYPE::nDataSize, OMX_VENDOR_EXTRADATATYPE::nPortIndex, omx_base_component_GetConfig(), OMX_ErrorNone, OMX_IndexVendorAudioExtraData, OMX_COMPONENTTYPE::pComponentPrivate, and OMX_VENDOR_EXTRADATATYPE::pData.

Referenced by omx_filereader_component_Constructor().

OMX_ERRORTYPE omx_filereader_component_GetExtensionIndex ( OMX_IN OMX_HANDLETYPE  hComponent,
OMX_IN OMX_STRING  cParameterName,
OMX_OUT OMX_INDEXTYPE pIndexType 
)

Definition at line 545 of file omx_filereader_component.c.

References DEB_LEV_FUNCTION_NAME, DEBUG, OMX_ErrorBadParameter, OMX_ErrorNone, OMX_IndexVendorAudioExtraData, and OMX_IndexVendorFileReadInputFilename.

Referenced by omx_filereader_component_Constructor().

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

Definition at line 407 of file omx_filereader_component.c.

References checkHeader(), DEB_LEV_SIMPLE_SEQ, DEBUG, err, OMX_AUDIO_PARAM_PORTFORMATTYPE::nPortIndex, omx_base_component_GetParameter(), OMX_BASE_SOURCE_OUTPUTPORT_INDEX, OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexParamAudioInit, OMX_IndexParamAudioPortFormat, OMX_IndexVendorFileReadInputFilename, OMX_PortDomainAudio, OMX_COMPONENTTYPE::pComponentPrivate, and omx_base_audio_PortType::sAudioParam.

Referenced by omx_filereader_component_Constructor().

OMX_ERRORTYPE omx_filereader_component_Init ( OMX_COMPONENTTYPE openmaxStandComp  ) 

The Initialization function

initialization of file reader component private data structures

opening the input file whose name is already set via setParameter

initialization for buff mgmt callback function

send callback regarding codec context extradata which will be required to open the codec in the audio decoder component

Definition at line 163 of file omx_filereader_component.c.

References DEB_LEV_ERR, DEB_LEV_FUNCTION_NAME, DEB_LEV_SIMPLE_SEQ, DEBUG, OMX_VENDOR_EXTRADATATYPE::nDataSize, OMX_VENDOR_EXTRADATATYPE::nPortIndex, OMX_AUDIO_CodingAAC, OMX_AUDIO_CodingMP3, OMX_AUDIO_CodingVORBIS, OMX_ErrorBadParameter, OMX_ErrorFormatNotDetected, OMX_ErrorNone, OMX_EventError, OMX_EventPortFormatDetected, OMX_EventPortSettingsChanged, OMX_FALSE, OMX_IndexParamAudioPortFormat, OMX_IndexParamCommonExtraQuantData, OMX_TRUE, OMX_COMPONENTTYPE::pComponentPrivate, OMX_VENDOR_EXTRADATATYPE::pData, and tsem_up().

Referenced by omx_filereader_component_MessageHandler().

OMX_ERRORTYPE omx_filereader_component_MessageHandler ( OMX_COMPONENTTYPE openmaxStandComp,
internalRequestMessageType message 
)

This function initializes and deinitializes the library related initialization needed for file parsing

Definition at line 454 of file omx_filereader_component.c.

References DEB_LEV_ERR, DEB_LEV_SIMPLE_SEQ, DEBUG, err, internalRequestMessageType::messageParam, internalRequestMessageType::messageType, omx_base_component_MessageHandler(), OMX_CommandStateSet, OMX_ErrorNone, omx_filereader_component_Deinit(), omx_filereader_component_Init(), OMX_StateExecuting, OMX_StateIdle, and OMX_COMPONENTTYPE::pComponentPrivate.

Referenced by omx_filereader_component_Constructor().

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

setting configurations

Definition at line 484 of file omx_filereader_component.c.

References checkHeader(), DEB_LEV_ERR, DEBUG, err, OMX_TIME_CONFIG_TIMESTAMPTYPE::nPortIndex, omx_base_component_SetConfig(), OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexConfigTimePosition, OMX_PortDomainAudio, and OMX_COMPONENTTYPE::pComponentPrivate.

Referenced by omx_filereader_component_Constructor().

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

determine the audio coding type

now set the port parameters according to selected audio coding type

Definition at line 319 of file omx_filereader_component.c.

References OMX_PARAM_PORTDEFINITIONTYPE::audio, OMX_AUDIO_PORTDEFINITIONTYPE::cMIMEType, DEB_LEV_ERR, DEB_LEV_SIMPLE_SEQ, DEBUG, DEFAULT_FILENAME_LENGTH, OMX_AUDIO_PARAM_PORTFORMATTYPE::eEncoding, OMX_AUDIO_PORTDEFINITIONTYPE::eEncoding, err, OMX_PARAM_PORTDEFINITIONTYPE::format, OMX_AUDIO_PARAM_MP3TYPE::nPortIndex, OMX_AUDIO_PARAM_PORTFORMATTYPE::nPortIndex, OMX_AUDIO_CodingAAC, OMX_AUDIO_CodingMP3, OMX_AUDIO_CodingVORBIS, omx_base_component_ParameterSanityCheck(), omx_base_component_SetParameter(), OMX_BASE_SOURCE_OUTPUTPORT_INDEX, OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_FALSE, OMX_IndexParamAudioMp3, OMX_IndexParamAudioPortFormat, OMX_IndexVendorFileReadInputFilename, OMX_COMPONENTTYPE::pComponentPrivate, omx_base_audio_PortType::sAudioParam, and omx_base_audio_PortType::sPortParam.

Referenced by omx_filereader_component_Constructor().


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