1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * PCM output buffer declarations
12 * Copyright (c) 2007 Michael Sevakis
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.
19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20 * KIND, either express or implied.
22 ****************************************************************************/
26 struct pcm_frame_header
/* Header added to pcm data every time a decoded
27 audio frame is sent out */
29 uint32_t size
; /* size of this frame - including header */
30 uint32_t time
; /* timestamp for this frame in audio ticks */
31 unsigned char data
[]; /* open array of audio data */
34 extern int pcm_skipped
, pcm_underruns
;
36 bool pcm_output_init(void);
37 void pcm_output_exit(void);
38 void pcm_output_flush(void);
39 void pcm_output_set_clock(uint32_t time
);
40 uint32_t pcm_output_get_clock(void);
41 uint32_t pcm_output_get_ticks(uint32_t *start
);
42 void pcm_output_play_pause(bool play
);
43 void pcm_output_stop(void);
44 void pcm_output_drain(void);
45 struct pcm_frame_header
* pcm_output_get_buffer(void);
46 void pcm_output_add_data(void);
47 ssize_t
pcm_output_used(void);
48 ssize_t
pcm_output_free(void);
50 #endif /* PCM_OUTPUT_H */