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Diffstat (limited to 'apps/plugins/mpegplayer/parser.h')
-rw-r--r-- | apps/plugins/mpegplayer/parser.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/apps/plugins/mpegplayer/parser.h b/apps/plugins/mpegplayer/parser.h new file mode 100644 index 0000000000..892a8a14d2 --- /dev/null +++ b/apps/plugins/mpegplayer/parser.h | |||
@@ -0,0 +1,101 @@ | |||
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 | * All files in this archive are subject to the GNU General Public License. | ||
15 | * See the file COPYING in the source tree root for full license agreement. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | #ifndef PARSER_H | ||
22 | #define PARSER_H | ||
23 | |||
24 | enum stream_formats | ||
25 | { | ||
26 | STREAM_FMT_UNKNOWN = -1, | ||
27 | STREAM_FMT_MPEG_TS, /* MPEG transport stream */ | ||
28 | STREAM_FMT_MPEG_PS, /* MPEG program stream */ | ||
29 | STREAM_FMT_MPV, /* MPEG Video only (1 or 2) */ | ||
30 | STREAM_FMT_MPA, /* MPEG Audio only */ | ||
31 | }; | ||
32 | |||
33 | /* Structure used by a thread that handles a single demuxed data stream and | ||
34 | * receives commands from the stream manager */ | ||
35 | enum stream_parse_states | ||
36 | { | ||
37 | /* Stream is... */ | ||
38 | SSTATE_SYNC, /* synchronizing by trying to find a start code */ | ||
39 | SSTATE_PARSE, /* parsing the stream looking for packets */ | ||
40 | SSTATE_END, /* at the end of data */ | ||
41 | }; | ||
42 | |||
43 | enum stream_parse_mode | ||
44 | { | ||
45 | STREAM_PM_STREAMING = 0, /* Next packet when streaming */ | ||
46 | STREAM_PM_RANDOM_ACCESS, /* Random-access parsing */ | ||
47 | }; | ||
48 | |||
49 | enum stream_parser_flags | ||
50 | { | ||
51 | STREAMF_CAN_SEEK = 0x1, /* Seeking possible for this stream */ | ||
52 | }; | ||
53 | |||
54 | struct stream_parser | ||
55 | { | ||
56 | /* Common generic parser data */ | ||
57 | enum stream_formats format; /* Stream format */ | ||
58 | uint32_t start_pts; /* The movie start time as represented by | ||
59 | the first audio PTS tag in the | ||
60 | stream converted to half minutes */ | ||
61 | uint32_t end_pts; /* The movie end time as represented by | ||
62 | the maximum audio PTS tag in the | ||
63 | stream converted to half minutes */ | ||
64 | uint32_t duration; /* Duration in PTS units */ | ||
65 | unsigned flags; /* Various attributes set at init */ | ||
66 | struct vo_ext dims; /* Movie dimensions in pixels */ | ||
67 | uint32_t last_seek_time; | ||
68 | int (*next_data)(struct stream *str, enum stream_parse_mode type); | ||
69 | union /* A place for reusable no-cache parameters */ | ||
70 | { | ||
71 | struct str_sync_data sd; | ||
72 | } parms; | ||
73 | }; | ||
74 | |||
75 | extern struct stream_parser str_parser; | ||
76 | |||
77 | /* MPEG parsing */ | ||
78 | uint8_t * mpeg_parser_scan_start_code(struct stream_scan *sk, uint32_t code); | ||
79 | unsigned mpeg_parser_scan_pes(struct stream_scan *sk); | ||
80 | uint32_t mpeg_parser_scan_scr(struct stream_scan *sk); | ||
81 | uint32_t mpeg_parser_scan_pts(struct stream_scan *sk, unsigned id); | ||
82 | off_t mpeg_stream_stream_seek_PTS(uint32_t time, int id); | ||
83 | |||
84 | /* General parsing */ | ||
85 | bool parser_init(void); | ||
86 | void str_initialize(struct stream *str, off_t pos); | ||
87 | intptr_t parser_send_video_msg(long id, intptr_t data); | ||
88 | bool parser_get_video_size(struct vo_ext *sz); | ||
89 | int parser_init_stream(void); | ||
90 | void parser_close_stream(void); | ||
91 | static inline bool parser_can_seek(void) | ||
92 | { return str_parser.flags & STREAMF_CAN_SEEK; } | ||
93 | uint32_t parser_seek_time(uint32_t time); | ||
94 | void parser_prepare_streaming(void); | ||
95 | void str_end_of_stream(struct stream *str); | ||
96 | |||
97 | static inline int parser_get_next_data(struct stream *str, | ||
98 | enum stream_parse_mode type) | ||
99 | { return str_parser.next_data(str, type); } | ||
100 | |||
101 | #endif /* PARSER_H */ | ||