|
1 /* |
|
2 * MP3/MPlayer plugin to VDR (C++) |
|
3 * |
|
4 * (C) 2001-2005 Stefan Huelswitt <s.huelswitt@gmx.de> |
|
5 * |
|
6 * This code is free software; you can redistribute it and/or |
|
7 * modify it under the terms of the GNU General Public License |
|
8 * as published by the Free Software Foundation; either version 2 |
|
9 * of the License, or (at your option) any later version. |
|
10 * |
|
11 * This code is distributed in the hope that it will be useful, |
|
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
14 * GNU General Public License for more details. |
|
15 * |
|
16 * You should have received a copy of the GNU General Public License |
|
17 * along with this program; if not, write to the Free Software |
|
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
|
19 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html |
|
20 */ |
|
21 |
|
22 #include <stdlib.h> |
|
23 #include <stdio.h> |
|
24 #include <errno.h> |
|
25 #include <sys/types.h> |
|
26 |
|
27 #include "common.h" |
|
28 #include "decoder-mp3-stream.h" |
|
29 #include "stream.h" |
|
30 |
|
31 // --- cNetScanID3 ------------------------------------------------------------- |
|
32 |
|
33 class cNetScanID3 : public cScanID3 { |
|
34 private: |
|
35 cNetStream *nstr; |
|
36 // |
|
37 void IcyInfo(void); |
|
38 public: |
|
39 cNetScanID3(cNetStream *Str, bool *Urgent); |
|
40 virtual bool DoScan(bool KeepOpen=false); |
|
41 virtual void InfoHook(struct mad_header *header); |
|
42 }; |
|
43 |
|
44 cNetScanID3::cNetScanID3(cNetStream *Str, bool *Urgent) |
|
45 :cScanID3(Str,Urgent) |
|
46 { |
|
47 nstr=Str; |
|
48 } |
|
49 |
|
50 bool cNetScanID3::DoScan(bool KeepOpen) |
|
51 { |
|
52 Clear(); |
|
53 IcyInfo(); |
|
54 if(!Title) FakeTitle(nstr->Filename); |
|
55 Total=0; |
|
56 ChMode=3; |
|
57 DecoderID=DEC_MP3S; |
|
58 InfoDone(); |
|
59 return true; |
|
60 } |
|
61 |
|
62 void cNetScanID3::InfoHook(struct mad_header *header) |
|
63 { |
|
64 if(nstr->IcyChanged()) IcyInfo(); |
|
65 SampleFreq=header->samplerate; |
|
66 Channels=MAD_NCHANNELS(header); |
|
67 ChMode=header->mode; |
|
68 |
|
69 int br=header->bitrate; |
|
70 if(Bitrate<0) Bitrate=br; |
|
71 else if(Bitrate!=br) { |
|
72 if(MaxBitrate<0) { |
|
73 if(Bitrate<br) MaxBitrate=br; |
|
74 else { MaxBitrate=Bitrate; Bitrate=br; } |
|
75 } |
|
76 else { |
|
77 if(br>MaxBitrate) MaxBitrate=br; |
|
78 if(br<Bitrate) Bitrate=br; |
|
79 } |
|
80 } |
|
81 } |
|
82 |
|
83 void cNetScanID3::IcyInfo(void) |
|
84 { |
|
85 const char *t=nstr->IcyTitle(); |
|
86 const char *a; |
|
87 if(t) { |
|
88 a=nstr->IcyName(); |
|
89 if(!a) a=nstr->IcyUrl(); |
|
90 } |
|
91 else { |
|
92 t=nstr->IcyName(); |
|
93 a=nstr->IcyUrl(); |
|
94 } |
|
95 if(t && (!Title || strcmp(t,Title))) { |
|
96 free(Title); |
|
97 Title=strdup(t); |
|
98 } |
|
99 if(a && (!Album || strcmp(a,Album))) { |
|
100 free(Album); |
|
101 Album=strdup(a); |
|
102 } |
|
103 } |
|
104 |
|
105 // --- cMP3StreamDecoder ------------------------------------------------------- |
|
106 |
|
107 cMP3StreamDecoder::cMP3StreamDecoder(const char *Filename) |
|
108 :cMP3Decoder(Filename,false) |
|
109 { |
|
110 nstr=new cNetStream(filename); |
|
111 str=nstr; |
|
112 nscan=new cNetScanID3(nstr,&urgentLock); |
|
113 scan=nscan; |
|
114 isStream=true; |
|
115 } |
|
116 |
|
117 bool cMP3StreamDecoder::Valid(void) |
|
118 { |
|
119 bool res=false; |
|
120 if(TryLock()) { |
|
121 if(nstr->Valid()) res=true; |
|
122 Unlock(); |
|
123 } |
|
124 return res; |
|
125 } |