#include "IDecodeToPcm.h"
#include "audio_buffer.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


IDecodeToPcm::IDecodeToPcm(void)
{
}


IDecodeToPcm::~IDecodeToPcm(void)
{

}
//------------------------------------------------------------------------------------------------------------------------
InAudioInfo::InAudioInfo()
{
	InitParam& initParam = m_initparam;
	initParam.u32AudioSamplerate=8000;
	initParam.ucAudioChannel=1;
	initParam.u32PCMBitSize=16;
	initParam.ucAudioCodec = Law_ALaw;
}
InAudioInfo::InAudioInfo(InitParam param):m_initparam(param)
{

}
//------------------------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
DecodeToPcmBase::DecodeToPcmBase(void)
{

}


DecodeToPcmBase::~DecodeToPcmBase(void)
{

}

int DecodeToPcmBase::Init(InAudioInfo info)
{
	m_g7FrameSize = G711_ONE_LEN;
	return 0;
}
int DecodeToPcmBase::PCMSize()
{
	return CON_PCM_SIZE;
}
int DecodeToPcmBase::G7FrameSize()
{
	return m_g7FrameSize;
}
int DecodeToPcmBase::Decode(unsigned char* pout_buf, unsigned int* pout_len , unsigned char* pin_buf, unsigned int in_len)
{
	int16_t *dst = (int16_t *) pout_buf;
	uint8_t *src = (uint8_t *) pin_buf;
	uint32_t i = 0;
	int Ret = 0;

	if ((NULL == pout_buf) || \
		(NULL == pout_len) || \
		(NULL == pin_buf) || \
		(0 == in_len))
	{
		return -1;
	}

	if (*pout_len < 2 * in_len)
	{
		return -2;
	}
	//---{{{

	for (i = 0; i < in_len; i++)
	{
		*(dst++) = (int16_t)DecodeOneChar(*(src++));
	}

	//---}}}
	*pout_len = 2 * in_len;

	Ret = 2 * in_len;
	return Ret;
	return 0;
}