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author | Miika Pekkarinen <miipekk@ihme.org> | 2005-06-26 19:41:29 +0000 |
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committer | Miika Pekkarinen <miipekk@ihme.org> | 2005-06-26 19:41:29 +0000 |
commit | d8cb703b1e86c9f910211a976d8bed0c7a99379a (patch) | |
tree | 6db3b698d83e639974bd6603225ff11891652113 /firmware/export | |
parent | 316eb6538e2fc88efa93248deb761679071409f1 (diff) | |
download | rockbox-d8cb703b1e86c9f910211a976d8bed0c7a99379a.tar.gz rockbox-d8cb703b1e86c9f910211a976d8bed0c7a99379a.zip |
Initial DSP implementation. DSP supports resampling audio stream from
codecs (currently works corrently only with mp3's, somebody should fix
that).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6877 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/export')
-rw-r--r-- | firmware/export/pcm_playback.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/firmware/export/pcm_playback.h b/firmware/export/pcm_playback.h index aa29601f70..3fe60670b3 100644 --- a/firmware/export/pcm_playback.h +++ b/firmware/export/pcm_playback.h | |||
@@ -19,6 +19,10 @@ | |||
19 | #ifndef PCM_PLAYBACK_H | 19 | #ifndef PCM_PLAYBACK_H |
20 | #define PCM_PLAYBACK_H | 20 | #define PCM_PLAYBACK_H |
21 | 21 | ||
22 | /* Guard buffer for crossfader when dsp is enabled. */ | ||
23 | #define PCMBUF_GUARD 32768 | ||
24 | |||
25 | /* PCM audio buffer. */ | ||
22 | #define PCMBUF_SIZE (1*1024*1024) | 26 | #define PCMBUF_SIZE (1*1024*1024) |
23 | 27 | ||
24 | void pcm_init(void); | 28 | void pcm_init(void); |
@@ -44,7 +48,9 @@ bool pcm_is_lowdata(void); | |||
44 | bool pcm_crossfade_init(void); | 48 | bool pcm_crossfade_init(void); |
45 | void audiobuffer_add_event(void (*event_handler)(void)); | 49 | void audiobuffer_add_event(void (*event_handler)(void)); |
46 | unsigned int audiobuffer_get_latency(void); | 50 | unsigned int audiobuffer_get_latency(void); |
47 | bool audiobuffer_insert(char *buf, size_t length); | 51 | bool pcm_insert_buffer(char *buf, size_t length); |
52 | void pcm_flush_buffer(size_t length); | ||
53 | void* pcm_request_buffer(size_t length, size_t *realsize); | ||
48 | bool pcm_is_crossfade_enabled(void); | 54 | bool pcm_is_crossfade_enabled(void); |
49 | void pcm_crossfade_enable(bool on_off); | 55 | void pcm_crossfade_enable(bool on_off); |
50 | 56 | ||