Cross Reference: /frameworks/av/libvideoeditor/vss/src/M4PCMR

Lines Matching defs:context
44  *          - initializes PCM context,
48  * @param   pContext: (OUT) Pointer on the PCM Reader context
66     M4PCMR_Context *context;
76     /* Allocates the context */
77     context = M4OSA_NULL;
78     context = (M4PCMR_Context *)M4OSA_32bitAlignedMalloc(sizeof(M4PCMR_Context), M4WAV_READER,
80     if (M4OSA_NULL == context)
84     *pContext = (M4OSA_Context)context;
86     /* Initialize the context */
87     context->m_offset = 0;
89     context->m_state            = M4PCMR_kInit;
90     context->m_microState       = M4PCMR_kInit;
91     context->m_pFileReadFunc    = M4OSA_NULL;
92     context->m_fileContext      = M4OSA_NULL;
93     context->m_pAuBuffer        = M4OSA_NULL;
94     context->m_pDecoderSpecInfo = M4OSA_NULL;
99     M4OSA_chrGetUInt32(pTempURL, &(context->m_decoderConfig.SampleFrequency),
105     M4OSA_chrGetUInt16(pTempURL, &(context->m_decoderConfig.nbChannels),
110     context->m_fileContext = M4OSA_NULL;
111     err = pFileFunction->openRead(&(context->m_fileContext), pUrl, M4OSA_kFileRead);
116     context->m_decoderConfig.BitsPerSample = 16;
117     context->m_decoderConfig.AvgBytesPerSec = context->m_decoderConfig.SampleFrequency * 2 \
118         * context->m_decoderConfig.nbChannels;
119     err = pFileFunction->getOption(context->m_fileContext, M4OSA_kFileReadGetFileSize,
120          (M4OSA_DataOption*)&(context->m_decoderConfig.DataLength));
125     context->m_blockSize = 2048 * context->m_decoderConfig.nbChannels;  // Raw PCM.  Hence, get a
128     if(context->m_decoderConfig.SampleFrequency == 8000)
131         context->m_blockSize = context->m_decoderConfig.nbChannels *\
132              (context->m_decoderConfig.SampleFrequency / 50) * \
133                 (context->m_decoderConfig.BitsPerSample / 8);
135     if(context->m_decoderConfig.SampleFrequency == 16000)
138         context->m_blockSize = 2048 * context->m_decoderConfig.nbChannels;
140     context->m_dataStartOffset = 0;
141     context->m_pFileReadFunc = pFileFunction;
143     context->m_pAuBuffer = (M4OSA_MemAddr32)M4OSA_32bitAlignedMalloc(context->m_blockSize, M4WAV_READER,
145     if (M4OSA_NULL == context->m_pAuBuffer)
152     context->m_state = M4PCMR_kOpening;
159     if(context->m_pFileReadFunc != M4OSA_NULL)
160         context->m_pFileReadFunc->closeRead(context->m_fileContext);
162     /* Free internal context */
163     free(context);
171  * M4OSA_ERR M4PCMR_getNextStream(M4OSA_Context context, M4SYS_StreamDescription* pStreamDesc)
177  * @param   context: (IN/OUT) PCM Reader context
178  * @param   pStreamDesc: (IN) Stream Description context
186 M4OSA_ERR M4PCMR_getNextStream(M4OSA_Context context, M4SYS_StreamDescription* pStreamDesc)
188     M4PCMR_Context *c = (M4PCMR_Context *)context;
191     if((M4OSA_NULL == context)|| (M4OSA_NULL == pStreamDesc))
278  * M4OSA_ERR M4PCMR_startReading(M4OSA_Context context, M4SYS_StreamID* pStreamIDs)
286  * @param   context: (IN/OUT) PCM Reader context
295 M4OSA_ERR M4PCMR_startReading(M4OSA_Context context, M4SYS_StreamID* pStreamIDs)
297     M4PCMR_Context *c = (M4PCMR_Context *)context;
300     if((M4OSA_NULL == context) || (M4OSA_NULL == pStreamIDs))
328  * M4OSA_ERR M4PCMR_nextAU(M4OSA_Context context, M4SYS_StreamID streamID, M4SYS_AccessUnit* pAU)
339  * @param   context: (IN/OUT) PCM Reader context
351 M4OSA_ERR M4PCMR_nextAU(M4OSA_Context context, M4SYS_StreamID streamID, M4SYS_AccessUnit* pAU)
353     M4PCMR_Context *c = (M4PCMR_Context *)context;
358     if((M4OSA_NULL == context) || (M4OSA_NULL == pAU))
418  * M4OSA_ERR M4PCMR_freeAU(M4OSA_Context context, M4SYS_StreamID streamID, M4SYS_AccessUnit* pAU)
425  * @param   context: (IN/OUT) PCM Reader context
433 M4OSA_ERR M4PCMR_freeAU(M4OSA_Context context, M4SYS_StreamID streamID, M4SYS_AccessUnit* pAU)
435     M4PCMR_Context *c = (M4PCMR_Context *)context;
438     if((M4OSA_NULL == context ) || (M4OSA_NULL == pAU))
460  * M4OSA_ERR M4PCMR_seek(M4OSA_Context context, M4SYS_StreamID* pStreamID,
468  *          - Update new m_offset in PCM reader context
469  * @param   context: (IN/OUT) PCM Reader context
482 M4OSA_ERR M4PCMR_seek(M4OSA_Context context, M4SYS_StreamID* pStreamID, M4OSA_Time time,
485     M4PCMR_Context *c = (M4PCMR_Context *)context;
492     if((M4OSA_NULL == context) || (M4OSA_NULL == pStreamID))
546  * M4OSA_ERR M4PCMR_closeRead(M4OSA_Context context)
547  * @brief   This function closes PCM file, and frees context
552  * @param   context: (IN/OUT) PCM Reader context
558 M4OSA_ERR M4PCMR_closeRead(M4OSA_Context context)
560     M4PCMR_Context *c = (M4PCMR_Context *)context;
564     if(M4OSA_NULL == context)
595     /* Free internal context */
606  * M4OSA_ERR M4PCMR_getOption(M4OSA_Context context, M4PCMR_OptionID optionID,
612  * @param   context: (IN/OUT) PCM Reader context
622 M4OSA_ERR M4PCMR_getOption(M4OSA_Context context, M4PCMR_OptionID optionID,
625     M4PCMR_Context *c =(M4PCMR_Context *)context;
628     if(M4OSA_NULL == context)
656  * M4OSA_ERR M4PCMR_setOption(M4OSA_Context context, M4PCMR_OptionID optionID,
662  * @param   context: (IN/OUT) PCM Reader context
672 M4OSA_ERR M4PCMR_setOption(M4OSA_Context context, M4PCMR_OptionID optionID, M4OSA_DataOption Value)
674     M4PCMR_Context *c =(M4PCMR_Context *)context;
677     if(context == M4OSA_NULL)