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| * Copyright Statement: |
| * -------------------- |
| * This software is protected by Copyright and the information contained |
| * herein is confidential. The software may not be copied and the information |
| * contained herein may not be used or disclosed except with the written |
| * permission of MediaTek Inc. (C) 2009 |
| * |
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| * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") |
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| *****************************************************************************/ |
| |
| /******************************************************************************* |
| * |
| * Filename: |
| * --------- |
| * bli_exp.h |
| * |
| * Project: |
| * -------- |
| * |
| * |
| * Description: |
| * ------------ |
| * BLI SRC Interface Definition |
| * |
| * Author: |
| * ------- |
| * ------- |
| * |
| *============================================================================== |
| * HISTORY |
| * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!! |
| *------------------------------------------------------------------------------ |
| * |
| *------------------------------------------------------------------------------ |
| * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!! |
| *============================================================================== |
| *******************************************************************************/ |
| |
| #ifndef BLI_EXP_H |
| #define BLI_EXP_H |
| |
| typedef void BLI_HANDLE; |
| |
| #ifndef NULL |
| #define NULL 0 |
| #endif |
| |
| |
| /*----------------------------------------------------------------------*/ |
| /* Get required buffer size for BLI Software SRC */ |
| /*----------------------------------------------------------------------*/ |
| void BLI_GetMemSize(unsigned int inSR, /* Input, input sampling rate of the conversion */ |
| unsigned int inChannel, /* Input, input channel number of the conversion */ |
| unsigned int outSR, /* Input, output sampling rate of the conversion */ |
| unsigned int outChannel, /* Input, output channel number of the conversion */ |
| unsigned int *workBufSize); /* Output, the required working buffer size in byte */ |
| |
| /*----------------------------------------------------------------------*/ |
| /* Get the BLI Software SRC handler. */ |
| /* Return: the handle of current BLI Software SRC */ |
| /*----------------------------------------------------------------------*/ |
| BLI_HANDLE *BLI_Open(unsigned int inSR, /* Input, input sampling rate of the conversion */ |
| unsigned int inChannel, /* Input, input channel number of the conversion */ |
| unsigned int outSR, /* Input, output sampling rate of the conversion */ |
| unsigned int outChannel, /* Input, output channel number of the conversion */ |
| signed char* buffer, /* Input, pointer to the working buffer */ |
| void *(*custom_alloc)(unsigned int)); |
| |
| /*----------------------------------------------------------------------*/ |
| /* Decompress the bitstream to PCM data */ |
| /* Return: consumed input buffer size(byte) */ |
| /*----------------------------------------------------------------------*/ |
| unsigned int BLI_Convert(void *hdl, /* Input, handle of this conversion */ |
| short *inBuf, /* Input, pointer to input buffer */ |
| unsigned int *inLength, /* Input, length(byte) of input buffer */ |
| /* Output, length(byte) left in the input buffer after conversion */ |
| short *outBuf, /* Input, pointer to output buffer */ |
| unsigned int *outLength); /* Input, length(byte) of output buffer */ |
| /* Output, output data length(byte) */ |
| |
| /*----------------------------------------------------------------------*/ |
| /* Close the process */ |
| /*----------------------------------------------------------------------*/ |
| void BLI_Close( void *hdl, |
| void (*custom_free) (void *)); |
| |
| |
| /*----------------------------------------------------------------------*/ |
| /* Change the input sampling rate during the process */ |
| /* Return: error code, 0 represents "everything is OK" */ |
| /*----------------------------------------------------------------------*/ |
| int BLI_SetSamplingRate(void *hdl, |
| unsigned int inSR); /* Input, input sampling rate of the conversion */ |
| |
| /*----------------------------------------------------------------------*/ |
| /* Clear the internal status for the discontinuous input buffer */ |
| /*----------------------------------------------------------------------*/ |
| int BLI_Reset(void *hdl); |
| |
| #endif |
| |