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comparison foosdk/sdk/foobar2000/helpers/packet_decoder_mp3_common.cpp @ 1:20d02a178406 default tip

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*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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0:e9bb126753e7 1:20d02a178406
1 #include "StdAfx.h"
2 #include "packet_decoder_mp3_common.h"
3 #include "mp3_utils.h"
4
5 unsigned packet_decoder_mp3_common::parseDecoderSetup( const GUID & p_owner,t_size p_param1,const void * p_param2,t_size p_param2size )
6 {
7 if (p_owner == owner_MP3) return 3;
8 else if (p_owner == owner_MP2) return 2;
9 else if (p_owner == owner_MP1) return 1;
10 else if (p_owner == owner_MP4)
11 {
12 switch(p_param1)
13 {
14 case 0x6B:
15 return 3;
16 break;
17 case 0x69:
18 return 3;
19 break;
20 default:
21 return 0;
22 }
23 }
24 else if (p_owner == owner_matroska)
25 {
26 if (p_param2size==sizeof(matroska_setup))
27 {
28 const matroska_setup * setup = (const matroska_setup*) p_param2;
29 if (!strcmp(setup->codec_id,"A_MPEG/L3")) return 3;
30 else if (!strcmp(setup->codec_id,"A_MPEG/L2")) return 2;
31 else if (!strcmp(setup->codec_id,"A_MPEG/L1")) return 1;
32 else return 0;
33 }
34 else return 0;
35 }
36 else return 0;
37 }
38
39 unsigned packet_decoder_mp3_common::layer_from_frame(const void * frame, size_t size) {
40 using namespace mp3_utils;
41 TMPEGFrameInfo info;
42 if (!ParseMPEGFrameHeader(info, frame, size)) throw exception_io_data();
43 return info.m_layer;
44 }