141 lines
5.6 KiB
C
141 lines
5.6 KiB
C
|
#include <windows.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include "fv_x8.h" // for DLL entry points
|
||
|
|
#include "variable.h"
|
||
|
|
|
||
|
|
# define SAMPLING_FREQUENCY F_ECH
|
||
|
|
# define DLL_MAJOR 1
|
||
|
|
# define DLL_MINOR 0
|
||
|
|
# define PCM_BUFFER_SIZE_4800_8000 2*NBSPF_4800_8000
|
||
|
|
# define PCM_BUFFER_SIZE_12000_16000 2*NBSPF_12000_16000
|
||
|
|
# define CODED_BUFFER_SIZE_4800 MAX_OUTPUT_BYTES_4800
|
||
|
|
# define CODED_BUFFER_SIZE_8000_12000 MAX_OUTPUT_BYTES_8000_12000
|
||
|
|
# define CODED_BUFFER_SIZE_16000 MAX_OUTPUT_BYTES_16000
|
||
|
|
# define PCM_BITS_PER_SAMPLE 16
|
||
|
|
|
||
|
|
# define CODEC_SUB_TAG_4800 800
|
||
|
|
# define CODEC_SUB_TAG_8000 801
|
||
|
|
# define CODEC_SUB_TAG_12000 802
|
||
|
|
# define CODEC_SUB_TAG_16000 803
|
||
|
|
# define CODEC_SUB_TAG_NAME_4800 "L&H SBCELP Codec 4.8 kbps"
|
||
|
|
# define CODEC_SUB_TAG_NAME_8000 "L&H SBC var.bitrate, 8 kbps 8 kHz" // !!! lenght<40
|
||
|
|
# define CODEC_SUB_TAG_NAME_12000 "L&H SBC var.bitrate, 12 kbps 8 kHz" // !!! lenght<40
|
||
|
|
# define CODEC_SUB_TAG_NAME_16000 "L&H SBC var.bitrate, 16 kbps 8 kHz" // !!! lenght<40
|
||
|
|
|
||
|
|
# define MakeVersion(a,b) ((DWORD)a<<16)|(DWORD)b
|
||
|
|
|
||
|
|
# define LONG_CODEC_SUB_TAG_NAME_4800 "L&H SBCELP Codec, 4.8 kbps 8 kHz"
|
||
|
|
# define LONG_CODEC_SUB_TAG_NAME_8000 "L&H SBC var.bitrate, 8 kbps 8 kHz"
|
||
|
|
# define LONG_CODEC_SUB_TAG_NAME_12000 "L&H SBC var.bitrate, 12 kbps 8 kHz"
|
||
|
|
# define LONG_CODEC_SUB_TAG_NAME_16000 "L&H SBC var.bitrate, 16 kbps 8 kHz"
|
||
|
|
|
||
|
|
# define IS_VAR_BIT_RATE_4800 0
|
||
|
|
# define IS_VAR_BIT_RATE_8000_12000_16000 1
|
||
|
|
# define MIN_CODED_BUFFER_SIZE_4800 12
|
||
|
|
# define MIN_CODED_BUFFER_SIZE_8000_12000_16000 1
|
||
|
|
# define MEAN_BIT_RATE_4800 4800
|
||
|
|
# define MEAN_BIT_RATE_8000 8000
|
||
|
|
# define MEAN_BIT_RATE_12000 12000
|
||
|
|
# define MEAN_BIT_RATE_16000 16000
|
||
|
|
# define IS_RT_CODING_4800 FALSE
|
||
|
|
# define IS_RT_CODING_8000_12000_16000 TRUE
|
||
|
|
# define IS_RT_DECODING TRUE
|
||
|
|
# define IS_FLOATING_POINT FALSE
|
||
|
|
# define INPUT_PCM_ONLY 0x0001
|
||
|
|
# define EXTRA_CODEC_INFO_SIZE 0
|
||
|
|
|
||
|
|
LH_PREFIX LH_ERRCODE LH_SUFFIX MSLHSB_GetCodecInfo(LPCODECINFO CodecInfo, DWORD dwMaxBitRate)
|
||
|
|
// Returns the input and output buffer sizes.
|
||
|
|
{
|
||
|
|
|
||
|
|
if ((!CodecInfo) || ((dwMaxBitRate != 4800) && (dwMaxBitRate != 8000) && (dwMaxBitRate != 12000) && (dwMaxBitRate != 16000)))
|
||
|
|
return LH_EBADARG;
|
||
|
|
|
||
|
|
CodecInfo->wBitsPerSamplePCM=PCM_BITS_PER_SAMPLE;
|
||
|
|
CodecInfo->dwSampleRate=SAMPLING_FREQUENCY;
|
||
|
|
CodecInfo->dwDLLVersion=MakeVersion(DLL_MAJOR,DLL_MINOR);
|
||
|
|
|
||
|
|
switch (dwMaxBitRate)
|
||
|
|
{
|
||
|
|
case 4800:
|
||
|
|
CodecInfo->wPCMBufferSize=PCM_BUFFER_SIZE_4800_8000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_4800;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_4800;
|
||
|
|
strcpy(CodecInfo->wFormatSubTagName,CODEC_SUB_TAG_NAME_4800);
|
||
|
|
break;
|
||
|
|
case 8000:
|
||
|
|
CodecInfo->wPCMBufferSize=PCM_BUFFER_SIZE_4800_8000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_8000_12000;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_8000;
|
||
|
|
strcpy(CodecInfo->wFormatSubTagName,CODEC_SUB_TAG_NAME_8000);
|
||
|
|
break;
|
||
|
|
case 12000:
|
||
|
|
CodecInfo->wPCMBufferSize=PCM_BUFFER_SIZE_12000_16000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_8000_12000;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_12000;
|
||
|
|
strcpy(CodecInfo->wFormatSubTagName,CODEC_SUB_TAG_NAME_12000);
|
||
|
|
break;
|
||
|
|
case 16000:
|
||
|
|
CodecInfo->wPCMBufferSize=PCM_BUFFER_SIZE_12000_16000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_16000;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_16000;
|
||
|
|
strcpy(CodecInfo->wFormatSubTagName,CODEC_SUB_TAG_NAME_16000);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return LH_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
// PhilF: We don't call this guy from the wrapper, so no need to implement it
|
||
|
|
#if 0
|
||
|
|
LH_PREFIX LH_ERRCODE LH_SUFFIX MSLHSB_GetCodecInfoEx(LPCODECINFOEX CodecInfo,DWORD cbSize, DWORD dwMaxBitRate)
|
||
|
|
{
|
||
|
|
|
||
|
|
if ((!CodecInfo) || (cbSize!=(DWORD)sizeof(CODECINFOEX)) || ((dwMaxBitRate != 8000) && (dwMaxBitRate != 12000) && (dwMaxBitRate != 16000)))
|
||
|
|
return LH_EBADARG;
|
||
|
|
|
||
|
|
if (cbSize==(DWORD)sizeof(CODECINFOEX))
|
||
|
|
{
|
||
|
|
// Information on implemented codec
|
||
|
|
switch (dwMaxBitRate)
|
||
|
|
{
|
||
|
|
case 8000:
|
||
|
|
CodecInfo->wInputBufferSize=PCM_BUFFER_SIZE_8000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_8000_12000;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_8000;
|
||
|
|
strcpy(CodecInfo->szFormatSubTagName,LONG_CODEC_SUB_TAG_NAME_8000);
|
||
|
|
CodecInfo->nAvgBytesPerSec=MEAN_BIT_RATE_8000/8;
|
||
|
|
break;
|
||
|
|
case 12000:
|
||
|
|
CodecInfo->wInputBufferSize=PCM_BUFFER_SIZE_12000_16000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_8000_12000;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_12000;
|
||
|
|
strcpy(CodecInfo->szFormatSubTagName,LONG_CODEC_SUB_TAG_NAME_12000);
|
||
|
|
CodecInfo->nAvgBytesPerSec=MEAN_BIT_RATE_12000/8;
|
||
|
|
break;
|
||
|
|
case 16000:
|
||
|
|
CodecInfo->wInputBufferSize=PCM_BUFFER_SIZE_12000_16000;
|
||
|
|
CodecInfo->wCodedBufferSize=CODED_BUFFER_SIZE_16000;
|
||
|
|
CodecInfo->wFormatSubTag=CODEC_SUB_TAG_16000;
|
||
|
|
strcpy(CodecInfo->szFormatSubTagName,LONG_CODEC_SUB_TAG_NAME_16000);
|
||
|
|
CodecInfo->nAvgBytesPerSec=MEAN_BIT_RATE_16000/8;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
CodecInfo->bIsVariableBitRate=IS_VAR_BIT_RATE;
|
||
|
|
CodecInfo->bIsRealTimeEncoding=IS_RT_CODING;
|
||
|
|
CodecInfo->bIsRealTimeDecoding=IS_RT_DECODING;
|
||
|
|
CodecInfo->bIsFloatingPoint=IS_FLOATING_POINT;
|
||
|
|
// Information on supported input format
|
||
|
|
CodecInfo->wInputDataFormat=INPUT_PCM_ONLY;
|
||
|
|
CodecInfo->dwInputSampleRate=SAMPLING_FREQUENCY;
|
||
|
|
CodecInfo->wInputBitsPerSample=PCM_BITS_PER_SAMPLE;
|
||
|
|
// Information on buffer sizes
|
||
|
|
CodecInfo->wMinimumCodedBufferSize=MIN_CODED_BUFFER_SIZE;
|
||
|
|
CodecInfo->dwDLLVersion=MakeVersion(DLL_MAJOR,DLL_MINOR);
|
||
|
|
CodecInfo->cbSize=EXTRA_CODEC_INFO_SIZE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|