44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#include "stdafx.h"
|
|
#include "packet_decoder_mp3_common.h"
|
|
#include "mp3_utils.h"
|
|
|
|
unsigned packet_decoder_mp3_common::parseDecoderSetup( const GUID & p_owner,t_size p_param1,const void * p_param2,t_size p_param2size )
|
|
{
|
|
if (p_owner == owner_MP3) return 3;
|
|
else if (p_owner == owner_MP2) return 2;
|
|
else if (p_owner == owner_MP1) return 1;
|
|
else if (p_owner == owner_MP4)
|
|
{
|
|
switch(p_param1)
|
|
{
|
|
case 0x6B:
|
|
return 3;
|
|
break;
|
|
case 0x69:
|
|
return 3;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
else if (p_owner == owner_matroska)
|
|
{
|
|
if (p_param2size==sizeof(matroska_setup))
|
|
{
|
|
const matroska_setup * setup = (const matroska_setup*) p_param2;
|
|
if (!strcmp(setup->codec_id,"A_MPEG/L3")) return 3;
|
|
else if (!strcmp(setup->codec_id,"A_MPEG/L2")) return 2;
|
|
else if (!strcmp(setup->codec_id,"A_MPEG/L1")) return 1;
|
|
else return 0;
|
|
}
|
|
else return 0;
|
|
}
|
|
else return 0;
|
|
}
|
|
|
|
unsigned packet_decoder_mp3_common::layer_from_frame(const void * frame, size_t size) {
|
|
using namespace mp3_utils;
|
|
TMPEGFrameInfo info;
|
|
if (!ParseMPEGFrameHeader(info, frame, size)) throw exception_io_data();
|
|
return info.m_layer;
|
|
} |