📄 prmdec.c
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/* Copyright (C) 2007 ROCK-CHIPS FUZHOU . All Rights Reserved. */
/*
File : \Audio\RMDec
Desc : RM音频解码【LBR,AAC】,RV视频解包。
Author : Vincent Hisung
Date : 2007-08-xx
Notes : 部分功能未经测试
$Log :
*
* vincent 2007/08/xx 建立此文件
*
*/
/****************************************************************/
#define ARM_ADS
#include <stdlib.h>
#include <time.h>
#include "pRmDec.h"
//#include "rv_depack_internal.h"
#include "include.h"
#include "../include/audio_globals.h"
#include "../include/CommonCmd.h"
//#include "core.h"
#include "../include/file_access.h"
extern MY_FILE* pRawFileCache;
static long OutLength;
static long ra_seek_to_time = (-1);
short *rm_OutLeft = NULL;
short *rm_OutRight = NULL;
#define RM2WAV_INITIAL_READ_SIZE 16
volatile int IS_RA_BLOCK_SEND = 0 ;
volatile int IS_RA_BLOCK_SEND2 = 0 ;
volatile unsigned long g_VT_ulNumAU = 0;
volatile rm_packet* g_VT_pPacket = NULL;
volatile int g_VT_i;
//this is define in that Vedio decode
//unsigned long maxPacketSize = 0;
//char* p_decode_a_new_packetData;
extern int real_is_V_or_A; // 0 - V . 1 - A
extern char* p_decode_a_new_packetData_a;
static ra_block decode_a_Block;
static int decode_a_i = 0;
static UINT32 decode_a_ulTimeOffset = 0;
static UINT32 decode_a_ulTimestamp = 0;
static HXDOUBLE decode_a_dTimeOffset = 0.0;
static int ra_seekable = 0;
static int while_cnt = 0;
typedef unsigned int CPU_STATUS;
/***************************************************************************/
#define DECLARE_CUP_SR CPU_STATUS cpu_sr
DECLARE_CUP_SR;
typedef struct
{
MY_FILE* fpOut;
ra_depack* pDepack;
ra_decode* pDecode;
BYTE* pOutBuf;
UINT32 ulOutBufSize;
UINT32 ulDataBytesWritten;
} rm2wav_info;
//-----------------------
static HX_RESULT retVal = HXR_OK;
static MY_FILE* fp = HXNULL;
static INT32 lBytesRead = 0;
static UINT32 ulNumStreams = 0;
static UINT32 i = 0;
static UINT16 usStreamNum_a = (-1);
static UINT32 ulOutFrameSize = 0;
static UINT32 ulRIFFSizeOff = 0;
static UINT32 ulTotFramesOff = 0;
static UINT32 ulStrHdrLenOff = 0;
static UINT32 ulMoviLenOff = 0;
static UINT32 ulHdrLen = 0;
static BYTE* pTmp = HXNULL;
static rm_parser* pParser = HXNULL;
static rm_stream_header* pHdr_a = HXNULL;
static rm_packet* pPacket = HXNULL;
static BYTE ucBuf[RM2WAV_INITIAL_READ_SIZE];
static UINT32 ulCodec4CC = 0;
static UINT32 ulMaxSamples = 0;
static UINT32 ulChannels = 0;
static UINT32 ulSampleRate = 0;
static UINT32 ulByteRate = 0;
static UINT32 ulOutBufSize = 0;
static UINT32 ulNumOutSamp = 0;
static UINT32 ulBytesOut = 0;
static UINT32 ulRIFFSize = 0;
static UINT16 usWavFormat = 0;
static UINT16 usWavFormatChunkSize = 0;
static BYTE* pOutBuf = HXNULL;
static ra_depack* pDepack_a = HXNULL;
static ra_decode* pDecode_a = HXNULL;
static ra_format_info* pInfo_a = HXNULL;
static rm2wav_info info_a;
static UINT32 ulTmp = 0;
static BYTE ucTmp[68];
static UINT32 ulAbr = 0;
static UINT32 ulCurrentTime = 0;
static int isPacketRdy = 0;
static unsigned long seeked_time = 0;
static unsigned int rmaudiocodec4cc = 0;
unsigned int GetRmAudioCodec4cc(void)
{
return rmaudiocodec4cc;
}
/******************************************************
Name: rm2wav_error
Desc: RA解包错误回调函数
Param: pError 出错结构体指针
result 结果
pszMsg 信息
Return: 无
Global: 无
Note: 无
Author: Vincent Hisung
Log:
/******************************************************/
void rm2wav_error(void* pError, HX_RESULT result, const char* pszMsg)
{
//fprintf(stderr, "rm2wav_error pError=0x%08x result=0x%08x msg=%s\n", pError, result, pszMsg);
}
unsigned long GetRACurTime()
{
return ulCurrentTime;
}
unsigned long GetRASeekedTime()
{
return seeked_time;
}
//回调函数，由音频解码器适时调用，用户无需调用
/******************************************************
Name: ra_block_available
Desc: RA块解码回调函数
Param: pAvail 解码结构体指针
ulSubStream 流编号
pBlock 音频块指针
Return: HXR_FAIL-失败 HXR_OK-成功
Global: 无
Note: 无
Author: Vincent Hisung
Log:
/******************************************************/
HX_RESULT ra_block_available(void* pAvail, UINT32 ulSubStream, ra_block* pBlock)
{
HX_RESULT retVal = HXR_FAIL;
if (pAvail && pBlock && pBlock->pData && pBlock->ulDataLen)
{
/* Init local variables */
UINT32 ulBytesConsumed = 0;
UINT32 ulTotalConsumed = 0;
UINT32 ulNumSamplesOut = 0;
UINT32 ulBytesLeft = 0;
UINT32 ulBytesWritten = 0;
UINT32 i = 0;
BYTE* pTmp = HXNULL;
BYTE ucTmp = 0;
/* Get the info pointer */
rm2wav_info* pInfo = (rm2wav_info*) pAvail;
/* Sanity check to make sure pInfo has what we need */
if (pInfo->fpOut && pInfo->pDepack && pInfo->pDecode &&
pInfo->pOutBuf && pInfo->ulOutBufSize)
{
/* Clear the return value */
retVal = HXR_OK;
/* Init the bytes left */
ulBytesLeft = pBlock->ulDataLen;
/* Loop until we've consumed all the data */
OutLength = 0;
while ((retVal == HXR_OK) && ulBytesLeft)
{
/* Decode the block */
//ENTER_CRITICAL();
//Just Debug,Move these lines away,By Vincent Hisung
if (ra_seek_to_time != (-1))
{
seeked_time = pBlock->ulTimestamp;
ra_seek_to_time = (-1);
}
#if 0
if (ra_seek_to_time != (-1))
{
if (pBlock->ulTimestamp < ra_seek_to_time)
return;
else
ra_seek_to_time = (-1);
}
#endif
retVal = ra_decode_decode(pInfo->pDecode,
(UINT8*)(pBlock->pData + ulTotalConsumed),
pBlock->ulDataLen - ulTotalConsumed,
&ulBytesConsumed,
(UINT16*) pInfo->pOutBuf,
pInfo->ulOutBufSize / 2,
&ulNumSamplesOut,
pBlock->ulDataFlags);
//EXIT_CRITICAL();
if (retVal == HXR_OK)
{
ulBytesWritten = ulNumSamplesOut << 1;
while_cnt = 0;
{
int i;
char *p_tmp1 = (char*)rm_OutLeft;//AudioIOBuf.OutLeft;
char *p_tmp2 = (char*)rm_OutRight;//AudioIOBuf.OutRight;
OutLength = ulNumSamplesOut / ulChannels;
for (i = 0;i < ulBytesWritten;)
{
*(p_tmp1++) = pInfo->pOutBuf[i];
i++;
*(p_tmp1++) = pInfo->pOutBuf[i];
i++;
if (ulChannels == 2)
{
*(p_tmp2++) = pInfo->pOutBuf[i];
i++;
*(p_tmp2++) = pInfo->pOutBuf[i];
i++;
}
else
{
//*
*(p_tmp2++) = pInfo->pOutBuf[i-2];
*(p_tmp2++) = pInfo->pOutBuf[i-1];
//*/
/*
*(p_tmp2++)=0;
*(p_tmp2++)=0;
*/
}
}
}
/* Update the number of data bytes written */
pInfo->ulDataBytesWritten += ulBytesWritten;
/* Update the total amount consumed */
ulTotalConsumed += ulBytesConsumed;
/* Update the bytes left */
ulBytesLeft -= ulBytesConsumed;
}
else
{
volatile aa = 0;
aa++;
aa *= aa;
retVal = retVal;
}
}
}
//below added by vincent
//ra_depack_destroy_block(pDepack_a,&pBlock);
rm_memory_default_free(0, pBlock->pData);
pBlock->pData = NULL;
}
return retVal;
}
#if 0
void SEND_IT(rv_depack_internal* pInt, unsigned long len, unsigned int type, unsigned int timestamp)
{
#if 0
//In fact,if I check the ECC packet and drop it may occour the stream has not end packet..
//So the wisdom is to check ECC in DSP, not here
//By Vincent Hisung,Nov 5,2007
//ulCurrentTime=timestamp;
if ((pInt->pCurFrame->pData[0]&pDecode_v->ulECCMask) == 0) // This check whether it is ECC packet. By Vincent Hisung
{
/*
fwrite(&type , 2, 1, info_v.fpOut); //type
fwrite(&len , 4, 1, info_v.fpOut); //len
fwrite(×tamp , 4, 1, info_v.fpOut); //timestamp
//*/
//if Len is Odd, make it be Even
//By Vincent Hisung,Nov 6,2007
//if (len & 0x01)
// len++;
//------------------------------
//fwrite(pInt->pCurFrame->pData, 1, len, info_v.fpOut); //data
//printf("RV out: %i , type : %i ,timestamp: %i \n",len,type,timestamp);
}
else
{
//printf("This is ECC Packet. %i\n",pInt->pCurFrame->pData[0]);
}
#endif
}
#endif
//****************************************************************************
//
// The codec plug-in entry point for the RM decoder.
//
//****************************************************************************
//功能实现情况：
//SUBFN_CODEC_GETNAME : 不支持
//SUBFN_CODEC_GETARTIST: 得到艺术家名称
//SUBFN_CODEC_GETTITLE : 得到曲名
//SUBFN_CODEC_GETBITRATE: 得到码率
//SUBFN_CODEC_GETSAMPLERATE: 得到采样率
//SUBFN_CODEC_GETCHANNELS: 得到声道数目
//SUBFN_CODEC_GETLENGTH : 得到时长 [单位：毫秒]
//SUBFN_CODEC_GETTIME : 得到当前播放时间 [单位：毫秒] ！注意：此处时间通过"时间戳"获得,若文件被破坏或许出错.
//SUBFN_CODEC_OPEN_DEC : 打开解码器(初始化)
//SUBFN_CODEC_SETBUFFER: 不支持
//SUBFN_CODEC_DECODE : 解码
//SUBFN_CODEC_ENCODE : 不支持
//SUBFN_CODEC_SEEK : 按时间直接定位 [单位：毫秒]
//SUBFN_CODEC_CLOSE : 关闭解码器
/******************************************************
Name: RMFunction
Desc: RM解码器接口函数
Param: ulIoctl 子功能号
ulParam1 子功能参数1
ulParam2 子功能参数2
ulParam3 子功能参数3
ulParam4 子功能参数4
Return: 0-失败 1-成功
Global: 无
Note: 无
Author: Vincent Hisung
Log:
/******************************************************/
unsigned long
RMFunction(unsigned long ulSubFn, unsigned long ulParam1, unsigned long ulParam2,
unsigned long ulParam3, unsigned long ulParam4)
{
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