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-rw-r--r--apps/plugins/mpegplayer/parser.h103
1 files changed, 0 insertions, 103 deletions
diff --git a/apps/plugins/mpegplayer/parser.h b/apps/plugins/mpegplayer/parser.h
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--- a/apps/plugins/mpegplayer/parser.h
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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * AV parser inteface declarations
11 *
12 * Copyright (c) 2007 Michael Sevakis
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
18 *
19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20 * KIND, either express or implied.
21 *
22 ****************************************************************************/
23#ifndef PARSER_H
24#define PARSER_H
25
26enum stream_formats
27{
28 STREAM_FMT_UNKNOWN = -1,
29 STREAM_FMT_MPEG_TS, /* MPEG transport stream */
30 STREAM_FMT_MPEG_PS, /* MPEG program stream */
31 STREAM_FMT_MPV, /* MPEG Video only (1 or 2) */
32 STREAM_FMT_MPA, /* MPEG Audio only */
33};
34
35/* Structure used by a thread that handles a single demuxed data stream and
36 * receives commands from the stream manager */
37enum stream_parse_states
38{
39 /* Stream is... */
40 SSTATE_SYNC, /* synchronizing by trying to find a start code */
41 SSTATE_PARSE, /* parsing the stream looking for packets */
42 SSTATE_END, /* at the end of data */
43};
44
45enum stream_parse_mode
46{
47 STREAM_PM_STREAMING = 0, /* Next packet when streaming */
48 STREAM_PM_RANDOM_ACCESS, /* Random-access parsing */
49};
50
51enum stream_parser_flags
52{
53 STREAMF_CAN_SEEK = 0x1, /* Seeking possible for this stream */
54};
55
56struct stream_parser
57{
58 /* Common generic parser data */
59 enum stream_formats format; /* Stream format */
60 uint32_t start_pts; /* The movie start time as represented by
61 the first audio PTS tag in the
62 stream converted to half minutes */
63 uint32_t end_pts; /* The movie end time as represented by
64 the maximum audio PTS tag in the
65 stream converted to half minutes */
66 uint32_t duration; /* Duration in PTS units */
67 unsigned flags; /* Various attributes set at init */
68 struct vo_ext dims; /* Movie dimensions in pixels */
69 uint32_t last_seek_time;
70 int (*next_data)(struct stream *str, enum stream_parse_mode type);
71 union /* A place for reusable no-cache parameters */
72 {
73 struct str_sync_data sd;
74 } parms;
75};
76
77extern struct stream_parser str_parser;
78
79/* MPEG parsing */
80uint8_t * mpeg_parser_scan_start_code(struct stream_scan *sk, uint32_t code);
81unsigned mpeg_parser_scan_pes(struct stream_scan *sk);
82uint32_t mpeg_parser_scan_scr(struct stream_scan *sk);
83uint32_t mpeg_parser_scan_pts(struct stream_scan *sk, unsigned id);
84off_t mpeg_stream_stream_seek_PTS(uint32_t time, int id);
85
86/* General parsing */
87bool parser_init(void);
88void str_initialize(struct stream *str, off_t pos);
89bool parser_prepare_image(uint32_t time);
90bool parser_get_video_size(struct vo_ext *sz);
91int parser_init_stream(void);
92void parser_close_stream(void);
93static inline bool parser_can_seek(void)
94 { return str_parser.flags & STREAMF_CAN_SEEK; }
95uint32_t parser_seek_time(uint32_t time);
96void parser_prepare_streaming(void);
97void str_end_of_stream(struct stream *str);
98
99static inline int parser_get_next_data(struct stream *str,
100 enum stream_parse_mode type)
101 { return str_parser.next_data(str, type); }
102
103#endif /* PARSER_H */