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Diffstat (limited to 'firmware/export/mp3data.h')
-rw-r--r-- | firmware/export/mp3data.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/firmware/export/mp3data.h b/firmware/export/mp3data.h new file mode 100644 index 0000000000..a1018ebaa2 --- /dev/null +++ b/firmware/export/mp3data.h | |||
@@ -0,0 +1,66 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2002 by Linus Nielsen Feltzing | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | |||
20 | #ifndef _MP3DATA_H_ | ||
21 | #define _MP3DATA_H_ | ||
22 | |||
23 | #define MPEG_VERSION2_5 0 | ||
24 | #define MPEG_VERSION1 1 | ||
25 | #define MPEG_VERSION2 2 | ||
26 | |||
27 | struct mp3info { | ||
28 | /* Standard MP3 frame header fields */ | ||
29 | int version; | ||
30 | int layer; | ||
31 | bool protection; | ||
32 | int bitrate; | ||
33 | int frequency; | ||
34 | int padding; | ||
35 | int channel_mode; | ||
36 | int mode_extension; | ||
37 | int emphasis; | ||
38 | int frame_size; /* Frame size in bytes */ | ||
39 | int frame_time; /* Frame duration in milliseconds */ | ||
40 | |||
41 | bool is_vbr; /* True if the file is VBR */ | ||
42 | bool has_toc; /* True if there is a VBR header in the file */ | ||
43 | bool is_xing_vbr; /* True if the VBR header is of Xing type */ | ||
44 | bool is_vbri_vbr; /* True if the VBR header is of VBRI type */ | ||
45 | unsigned char toc[100]; | ||
46 | int frame_count; /* Number of frames in the file (if VBR) */ | ||
47 | int byte_count; /* File size in bytes */ | ||
48 | int file_time; /* Length of the whole file in milliseconds */ | ||
49 | int xing_header_pos; | ||
50 | }; | ||
51 | |||
52 | /* Xing header information */ | ||
53 | #define VBR_FRAMES_FLAG 0x01 | ||
54 | #define VBR_BYTES_FLAG 0x02 | ||
55 | #define VBR_TOC_FLAG 0x04 | ||
56 | |||
57 | |||
58 | unsigned long find_next_frame(int fd, int *offset, int max_offset, unsigned long last_header); | ||
59 | int get_mp3file_info(int fd, struct mp3info *info); | ||
60 | int count_mp3_frames(int fd, int startpos, int filesize, | ||
61 | void (*progressfunc)(int)); | ||
62 | int create_xing_header(int fd, int startpos, int filesize, | ||
63 | unsigned char *buf, int num_frames, | ||
64 | void (*progressfunc)(int)); | ||
65 | |||
66 | #endif | ||