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Diffstat (limited to 'apps/plugins/mpegplayer/stream_mgr.h')
-rw-r--r-- | apps/plugins/mpegplayer/stream_mgr.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/apps/plugins/mpegplayer/stream_mgr.h b/apps/plugins/mpegplayer/stream_mgr.h new file mode 100644 index 0000000000..7dba9acc09 --- /dev/null +++ b/apps/plugins/mpegplayer/stream_mgr.h | |||
@@ -0,0 +1,168 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * AV stream manager decalarations | ||
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 STREAM_MGR_H | ||
24 | #define STREAM_MGR_H | ||
25 | |||
26 | /* Basic media control interface - this handles state changes and stream | ||
27 | * coordination with assistance from the parser */ | ||
28 | struct stream_mgr | ||
29 | { | ||
30 | unsigned int thread; /* Playback control thread */ | ||
31 | struct event_queue *q; /* event queue for control thread */ | ||
32 | const char *filename; /* Current filename */ | ||
33 | uint32_t resume_time; /* The stream tick where playback was | ||
34 | stopped (or started) */ | ||
35 | bool seeked; /* A seek happened and things must be | ||
36 | resynced */ | ||
37 | int status; /* Current playback status */ | ||
38 | void *strl[MPEGPLAYER_MAX_STREAMS+1]; /* List of available streams */ | ||
39 | void *actl[MPEGPLAYER_MAX_STREAMS+1]; /* List of active streams */ | ||
40 | struct mutex str_mtx; /* Main stream manager mutex */ | ||
41 | struct mutex actl_mtx; /* Lock for current-streams list */ | ||
42 | union /* A place for reusable non-cacheable parameters */ | ||
43 | { | ||
44 | struct vo_rect rc; | ||
45 | struct stream_seek_data skd; | ||
46 | } parms; | ||
47 | }; | ||
48 | |||
49 | extern struct stream_mgr stream_mgr SHAREDBSS_ATTR; | ||
50 | |||
51 | struct stream_window | ||
52 | { | ||
53 | off_t left, right; | ||
54 | }; | ||
55 | |||
56 | /** Interface for use by streams and other internal objects **/ | ||
57 | bool stream_get_window(struct stream_window *sw); | ||
58 | void stream_clear_notify(struct stream *str, int for_msg); | ||
59 | int str_next_data_not_ready(struct stream *str); | ||
60 | /* Called by a stream to say it got its buffering notification */ | ||
61 | void str_data_notify_received(struct stream *str); | ||
62 | void stream_add_stream(struct stream *str); | ||
63 | void stream_remove_streams(void); | ||
64 | |||
65 | enum stream_events | ||
66 | { | ||
67 | __STREAM_EV_FIRST = STREAM_MESSAGE_LAST-1, | ||
68 | STREAM_EV_COMPLETE, | ||
69 | }; | ||
70 | |||
71 | void stream_generate_event(struct stream *str, long id, intptr_t data); | ||
72 | |||
73 | /** Main control functions **/ | ||
74 | |||
75 | /* Initialize the playback engine */ | ||
76 | int stream_init(void); | ||
77 | |||
78 | /* Close the playback engine */ | ||
79 | void stream_exit(void); | ||
80 | |||
81 | /* Open a new file */ | ||
82 | int stream_open(const char *filename); | ||
83 | |||
84 | /* Close the current file */ | ||
85 | int stream_close(void); | ||
86 | |||
87 | /* Plays from the current seekpoint if stopped */ | ||
88 | int stream_play(void); | ||
89 | |||
90 | /* Pauses playback if playing */ | ||
91 | int stream_pause(void); | ||
92 | |||
93 | /* Resumes playback if paused */ | ||
94 | int stream_resume(void); | ||
95 | |||
96 | /* Stops all streaming activity if playing or paused */ | ||
97 | int stream_stop(void); | ||
98 | |||
99 | /* Point stream at a particular time. | ||
100 | * whence = one of SEEK_SET, SEEK_CUR, SEEK_END */ | ||
101 | int stream_seek(uint32_t time, int whence); | ||
102 | |||
103 | /* Show/Hide the video image at the current seekpoint */ | ||
104 | bool stream_show_vo(bool show); | ||
105 | |||
106 | /* Set the visible section of video */ | ||
107 | void stream_vo_set_clip(const struct vo_rect *rc); | ||
108 | |||
109 | /* Return current visible section of video */ | ||
110 | bool stream_vo_get_clip(struct vo_rect *rc); | ||
111 | |||
112 | #ifndef HAVE_LCD_COLOR | ||
113 | void stream_gray_show(bool show); | ||
114 | #endif | ||
115 | |||
116 | /* Display thumbnail of the current seekpoint */ | ||
117 | bool stream_display_thumb(const struct vo_rect *rc); | ||
118 | |||
119 | /* Draw the frame at the current position */ | ||
120 | bool stream_draw_frame(bool no_prepare); | ||
121 | |||
122 | /* Return video dimensions */ | ||
123 | bool stream_vo_get_size(struct vo_ext *sz); | ||
124 | |||
125 | /* Returns the resume time in timestamp ticks */ | ||
126 | uint32_t stream_get_resume_time(void); | ||
127 | |||
128 | /* Returns stream_get_time if no seek is pending or else the | ||
129 | last time give to seek */ | ||
130 | uint32_t stream_get_seek_time(uint32_t *start); | ||
131 | |||
132 | /* Return the absolute stream time in clock ticks - adjusted by | ||
133 | * master clock stream via audio timestamps */ | ||
134 | static inline uint32_t stream_get_time(void) | ||
135 | { return pcm_output_get_clock(); } | ||
136 | |||
137 | /* Return the absolute clock time in clock ticks - unadjusted */ | ||
138 | static inline uint32_t stream_get_ticks(uint32_t *start) | ||
139 | { return pcm_output_get_ticks(start); } | ||
140 | |||
141 | /* Returns the current playback status */ | ||
142 | static inline int stream_status(void) | ||
143 | { return stream_mgr.status; } | ||
144 | |||
145 | /* Wait for a state transistion to complete */ | ||
146 | void stream_wait_status(void); | ||
147 | |||
148 | /* Returns the playback length of the stream */ | ||
149 | static inline uint32_t stream_get_duration(void) | ||
150 | { return str_parser.duration; } | ||
151 | |||
152 | static inline bool stream_can_seek(void) | ||
153 | { return parser_can_seek(); } | ||
154 | |||
155 | static inline void stream_video_stats(struct video_output_stats *s) | ||
156 | { video_thread_get_stats(s); } | ||
157 | |||
158 | bool stream_set_callback(long id, void * fn); | ||
159 | |||
160 | /* Keep the disk spinning (for seeking and browsing) */ | ||
161 | static inline void stream_keep_disk_active(void) | ||
162 | { | ||
163 | #ifdef HAVE_DISK_STORAGE | ||
164 | rb->storage_spin(); | ||
165 | #endif | ||
166 | } | ||
167 | |||
168 | #endif /* STREAM_MGR_H */ | ||