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author | Miika Pekkarinen <miipekk@ihme.org> | 2005-07-05 15:51:59 +0000 |
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committer | Miika Pekkarinen <miipekk@ihme.org> | 2005-07-05 15:51:59 +0000 |
commit | 3e33a0f8ee62dc37e6e028e5dcb39b91e0e0d154 (patch) | |
tree | 1bcb2fbcda422a064c9d55df3ac7d517693f72f0 /firmware/pcm_playback.c | |
parent | d6e79424264147e52f70d9ed34b80e34a9d3c23b (diff) | |
download | rockbox-3e33a0f8ee62dc37e6e028e5dcb39b91e0e0d154.tar.gz rockbox-3e33a0f8ee62dc37e6e028e5dcb39b91e0e0d154.zip |
More crossfade adjustments. Now crossfade should work shortly even if
the disk was not spinning while a new track was loaded from the disk.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7028 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/pcm_playback.c')
-rw-r--r-- | firmware/pcm_playback.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/firmware/pcm_playback.c b/firmware/pcm_playback.c index a58069d5f1..20cd1f2dbd 100644 --- a/firmware/pcm_playback.c +++ b/firmware/pcm_playback.c | |||
@@ -420,10 +420,10 @@ unsigned int audiobuffer_get_latency(void) | |||
420 | 420 | ||
421 | bool pcm_is_lowdata(void) | 421 | bool pcm_is_lowdata(void) |
422 | { | 422 | { |
423 | if (!pcm_is_playing() || pcm_paused) | 423 | if (!pcm_is_playing() || pcm_paused || crossfade_init || crossfade_active) |
424 | return false; | 424 | return false; |
425 | 425 | ||
426 | if (pcmbuf_unplayed_bytes < PCM_WATERMARK || crossfade_active) | 426 | if (pcmbuf_unplayed_bytes < PCM_WATERMARK) |
427 | return true; | 427 | return true; |
428 | 428 | ||
429 | return false; | 429 | return false; |
@@ -435,7 +435,7 @@ bool pcm_crossfade_init(void) | |||
435 | || crossfade_active) { | 435 | || crossfade_active) { |
436 | return false; | 436 | return false; |
437 | } | 437 | } |
438 | logf("crossfading!"); | 438 | logf("pcm_crossfade_init"); |
439 | pcm_boost(true); | 439 | pcm_boost(true); |
440 | crossfade_mode = CFM_CROSSFADE; | 440 | crossfade_mode = CFM_CROSSFADE; |
441 | crossfade_init = true; | 441 | crossfade_init = true; |
@@ -478,13 +478,16 @@ void pcm_flush_fillpos(void) | |||
478 | 478 | ||
479 | static void crossfade_start(void) | 479 | static void crossfade_start(void) |
480 | { | 480 | { |
481 | int bytesleft = pcmbuf_unplayed_bytes; | ||
482 | |||
481 | crossfade_init = 0; | 483 | crossfade_init = 0; |
482 | if (PCMBUF_SIZE - audiobuffer_free < CHUNK_SIZE * 4) { | 484 | if (bytesleft < CHUNK_SIZE * 3) { |
483 | if (crossfade_mode == CFM_FLUSH) | 485 | logf("crossfade rejected"); |
484 | pcm_play_stop(); | 486 | pcm_play_stop(); |
485 | return ; | 487 | return ; |
486 | } | 488 | } |
487 | 489 | ||
490 | logf("crossfade_start"); | ||
488 | pcm_flush_fillpos(); | 491 | pcm_flush_fillpos(); |
489 | pcm_boost(true); | 492 | pcm_boost(true); |
490 | crossfade_active = true; | 493 | crossfade_active = true; |
@@ -492,12 +495,12 @@ static void crossfade_start(void) | |||
492 | 495 | ||
493 | switch (crossfade_mode) { | 496 | switch (crossfade_mode) { |
494 | case CFM_CROSSFADE: | 497 | case CFM_CROSSFADE: |
495 | crossfade_amount = (PCMBUF_SIZE - audiobuffer_free - (CHUNK_SIZE * 2))/2; | 498 | crossfade_amount = (bytesleft - (CHUNK_SIZE * 2))/2; |
496 | crossfade_rem = crossfade_amount; | 499 | crossfade_rem = crossfade_amount; |
497 | break ; | 500 | break ; |
498 | 501 | ||
499 | case CFM_FLUSH: | 502 | case CFM_FLUSH: |
500 | crossfade_amount = (PCMBUF_SIZE - audiobuffer_free - (CHUNK_SIZE * 2))/2; | 503 | crossfade_amount = (bytesleft - (CHUNK_SIZE * 2))/2; |
501 | crossfade_rem = crossfade_amount; | 504 | crossfade_rem = crossfade_amount; |
502 | break ; | 505 | break ; |
503 | } | 506 | } |
@@ -586,7 +589,7 @@ void* pcm_request_buffer(long length, long *realsize) | |||
586 | 589 | ||
587 | bool pcm_is_crossfade_active(void) | 590 | bool pcm_is_crossfade_active(void) |
588 | { | 591 | { |
589 | return crossfade_active; | 592 | return crossfade_active || crossfade_init; |
590 | } | 593 | } |
591 | 594 | ||
592 | void pcm_flush_buffer(long length) | 595 | void pcm_flush_buffer(long length) |