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156 commits

Author SHA1 Message Date
Michael Sevakis
31567306e7 Restore functionality of pcmbuf_is_lowdata. It fell out of sync since the mixer code and then an incorrect change unintentionally remained in r30366. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30369 a1c6a512-1295-4272-9138-f99709370657
 2011-08-28 14:26:59 +00:00
Michael Sevakis
9384cda2bb Remove INT_MAX from pcmbuf.c. Win32 sim compained about it and it isn't specifically important enough for another #include - it just needs a great enough value to cover any remaining data. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30367 a1c6a512-1295-4272-9138-f99709370657
 2011-08-28 08:59:14 +00:00
Michael Sevakis
7ad2cad173 Commit work started in FS#12153 to put timing/position information in PCM 
buffer chunks.

* Samples and position indication is closely associated with audio data
  instead of compensating by a latency constant. Alleviates problems with
  using the elapsed as a track indicator where it could be off by several
  steps.

* Timing is accurate throughout track even if resampling for pitch shift,
  whereas before it updated during transition latency at the normal 1:1 rate.

* Simpler PCM buffer with a constant chunk size, no linked lists.

In converting crossfade, a minor change was made to not change the WPS until
the fade-in of the incoming track, whereas before it would change upon the
start of the fade-out of the outgoing track possibly having the WPS change
with far too much lead time.

Codec changes are to set elapsed times *before* writing next PCM frame because
 time and position data last set are saved in the next committed PCM chunk. 


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30366 a1c6a512-1295-4272-9138-f99709370657
 2011-08-28 07:45:35 +00:00
Michael Sevakis
697aa7f499 Do sync between pcmbuf volume controls without explicit IRQ masking, which is nicer and also allows pcmbuf.c to compile again as thumb code. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30344 a1c6a512-1295-4272-9138-f99709370657
 2011-08-25 00:12:19 +00:00
Michael Sevakis
4d903f27c3 Fix a miscomment in pcmbuf.c 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30341 a1c6a512-1295-4272-9138-f99709370657
 2011-08-23 05:58:28 +00:00
Michael Sevakis
5078d460c6 Fix FS#12238 - WPS delay on pause introduced by r30097 which was the excuse I wanted anyway to do a better PCM fade on stop/pause implementation. New fade is asynchronous tick-based. Restores skin update points in the WPS that were removed when fading mechanism was changed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30340 a1c6a512-1295-4272-9138-f99709370657
 2011-08-23 01:37:59 +00:00
Michael Sevakis
96f02a9aa9 is_codec_thread() is not needed anymore since PCM buffer calls other than volume level are no longer made by the voice thread. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30189 a1c6a512-1295-4272-9138-f99709370657
 2011-07-21 22:25:09 +00:00
Michael Sevakis
a802ebac06 The voice PCM buffer has nothing to do with the playback PCM buffer any longer. Allocate it independently from the playback engine's PCM buffer and only when voice is required. Additionally, allocate actual space for the crossfade buffer only when using crossfade. Will save 18.3KB when neither is needed (10.3KB for voice and 8.0KB for crossfade). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30133 a1c6a512-1295-4272-9138-f99709370657
 2011-07-09 01:49:00 +00:00
Michael Sevakis
185fddbd66 Fix FS#12179 - Simulator build fails when using "configure --sdl-threads". HAVE_PRIORITY_SCHEDULING checks were missing to exclude priority calls when building without priority. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30124 a1c6a512-1295-4272-9138-f99709370657
 2011-07-06 02:21:25 +00:00
Michael Sevakis
5ff641fb81 Do some adjustments to alleviate IRAM congestion on some targets from r30097. Include removing pointless IRAM declarations in pcmbuf.c because that callback code runs at a fairly relaxed pace. M5 is still the biggest problem. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30100 a1c6a512-1295-4272-9138-f99709370657
 2011-06-29 09:39:13 +00:00
Michael Sevakis
a2b6703a36 Commit FS#12150 - Fully-functional audio mixer - and finally whip old limitations about playback of voice and other sounds when paused. Channels are independent in state and amplitude. Fade on stop/pause is handled by the channel's volume control rather than global volume which means it now works from anywhere. Opens up the possibility of plugin sounds during music playback by merely adding an additional channel enum. If any PCM drivers were not properly modified, see one of the last comments in the task for a description of the simple change that is expected. Some params are tunable in firmware/export/pcm-mixer.h as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30097 a1c6a512-1295-4272-9138-f99709370657
 2011-06-29 06:37:04 +00:00
Jeffrey Goode
8cb4b36ee3 Fix whitespace and some comment typos 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29850 a1c6a512-1295-4272-9138-f99709370657
 2011-05-09 21:52:06 +00:00
Michael Sevakis
c537d5958e Commit FS#12069 - Playback rework - first stages. Gives as thorough as possible a treatment of codec management, track change and metadata logic as possible while maintaining fairly narrow focus and not rewriting everything all at once. Please see the rockbox-dev mail archive on 2011-04-25 (Playback engine rework) for a more thorough manifest of what was addressed. Plugins and codecs become incompatible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29785 a1c6a512-1295-4272-9138-f99709370657
 2011-04-27 03:08:23 +00:00
Michael Sevakis
ba8ce00bfc pcmbuf: Clear last_chunksize at stop so we don't think there's a buffer in progress. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29395 a1c6a512-1295-4272-9138-f99709370657
 2011-02-25 03:51:52 +00:00
Michael Sevakis
6510973223 Give playback engine better control over the codec. Codec simply follows commands and doesn't concern itself with audio state. Get track change notification in on the actual last buffer insert of the track because now audio simply waits for a track change notify from PCM on the last track and it must be sent reliably. This is still at an intermediate stage but works. Codecs and plugins become incompatible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29387 a1c6a512-1295-4272-9138-f99709370657
 2011-02-23 14:31:13 +00:00
Thomas Martitz
9afb55ad95 Redo raising the priority of the codec (and voice) thread to fix audio dropouts under heavy UI load, such as during kinetic scrolling or pictureflow. 
Now it'll raise the priority gradually when under 70% and gradually decrease again in the same way.
Previously it raised gradually when under 17% (way too late) and went straight back to default priority above 17% again.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28877 a1c6a512-1295-4272-9138-f99709370657
 2010-12-22 16:03:15 +00:00
Thomas Martitz
35e8b1429a Rockbox as an application: Replace many occurences of #ifdef SIMULATOR with #if (CONFIG_PLATFORM & PLATFORM_HOSTED) (or equivalently). 
The simulator defines PLATFORM_HOSTED, as RaaA will do (RaaA will not define SIMULATOR).
The new define is to (de-)select code to compile on hosted platforms generally.

Should be no functional change to targets or the simulator.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27019 a1c6a512-1295-4272-9138-f99709370657
 2010-06-21 16:53:00 +00:00
Jeffrey Goode
c8944c09c2 Voice buffer can be much, much smaller. Code cleanup, logf fix 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26354 a1c6a512-1295-4272-9138-f99709370657
 2010-05-28 13:21:24 +00:00
Steve Bavin
b2dc7f004e Fix crash when crossfading at natural track transition - FS#10814 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23758 a1c6a512-1295-4272-9138-f99709370657
 2009-11-26 14:41:31 +00:00
Jeffrey Goode
84ca236c30 pcmbuf: better debug info, reinstate flush variable clear 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23665 a1c6a512-1295-4272-9138-f99709370657
 2009-11-18 20:56:19 +00:00
Jeffrey Goode
db82be4390 Cleanup audio.h, related functions 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23651 a1c6a512-1295-4272-9138-f99709370657
 2009-11-16 20:09:46 +00:00
Jeffrey Goode
ba9280d5f4 pcmbuf cleanup 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23649 a1c6a512-1295-4272-9138-f99709370657
 2009-11-16 04:42:34 +00:00
Jeffrey Goode
873c5b6d18 pcmbuf: consolidate some similar code 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23628 a1c6a512-1295-4272-9138-f99709370657
 2009-11-15 04:57:40 +00:00
Jeffrey Goode
d1963e14de Crossfade: crossfaded manual skips now start fading immediately 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23622 a1c6a512-1295-4272-9138-f99709370657
 2009-11-13 21:58:41 +00:00
Jeffrey Goode
29d2711115 Crossfade: fix shuffle OR manual skip functionality, verbiage and manual 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23621 a1c6a512-1295-4272-9138-f99709370657
 2009-11-12 15:42:37 +00:00
Jeffrey Goode
15351e8137 pcmbuf: consolidated some crossfade code 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23618 a1c6a512-1295-4272-9138-f99709370657
 2009-11-12 04:24:41 +00:00
Jeffrey Goode
0db3308cb5 pcmbuf: bug fix with pcmbuf flush, code cleanup, added comments 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23608 a1c6a512-1295-4272-9138-f99709370657
 2009-11-11 07:02:18 +00:00
Jeffrey Goode
664dc90e71 Crossfade: added a new option, rewrote decision logic, updated manual and menus. Translators please note that updated translations may be required for some crossfade menu items! 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23605 a1c6a512-1295-4272-9138-f99709370657
 2009-11-11 00:48:17 +00:00
Jeffrey Goode
dd93ef41bb HAVE_CROSSFADE defs: fix yellow and red 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23598 a1c6a512-1295-4272-9138-f99709370657
 2009-11-10 04:21:40 +00:00
Jeffrey Goode
9e0953432a Crossfade: carved out crossfade related code with lots of HAVE_CORSSFADE conditionals, eliminated fade buffer on low memory targets 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23597 a1c6a512-1295-4272-9138-f99709370657
 2009-11-10 03:46:08 +00:00
Jeffrey Goode
cc4d92c270 pcmbuf: simplify crossfade logic 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23593 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 19:34:01 +00:00
Jeffrey Goode
874c911464 pcmbuf: refactoring 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23592 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 18:12:20 +00:00
Jeffrey Goode
5c69a42d51 pcmbuf: more refactoring 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23588 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 17:11:53 +00:00
Jeffrey Goode
73c4791da0 pcmbuf: eliminate add_chunk as a separate function 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23582 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 06:53:22 +00:00
Jeffrey Goode
d0ac045f44 pcmbuf: fix yellow. More renaming. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23579 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 05:58:02 +00:00
Jeffrey Goode
8edac6ec82 pcmbuf: refactoring, renamed confusing variables, moved some code around, but still no functional changes 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23577 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 05:45:05 +00:00
Jeffrey Goode
b6f15f2c95 pcmbuf: moved some functions around, no functional changes yet 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23565 a1c6a512-1295-4272-9138-f99709370657
 2009-11-08 04:27:27 +00:00
Jeffrey Goode
e9f389a9e7 pcmbuf: need ifdef to fix yellow 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23542 a1c6a512-1295-4272-9138-f99709370657
 2009-11-06 04:25:28 +00:00
Jeffrey Goode
37adbee236 pcmbuf: sorted functions into logical sections for readability. Tiny changes, nothing functional 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23541 a1c6a512-1295-4272-9138-f99709370657
 2009-11-06 04:13:36 +00:00
Jeffrey Goode
04b01e1831 pcmbuf: clarify and simplify crossfade code, etc. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23538 a1c6a512-1295-4272-9138-f99709370657
 2009-11-05 21:59:36 +00:00
Jeffrey Goode
013fe35992 pcmbuf: better latency calculation, added debug code 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23537 a1c6a512-1295-4272-9138-f99709370657
 2009-11-05 17:32:32 +00:00
Jeffrey Goode
5ce8e2cb0d Clarify track transition code in pcmbuf and playback. No functional changes yet. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23506 a1c6a512-1295-4272-9138-f99709370657
 2009-11-04 03:58:33 +00:00
Jeffrey Goode
e8eefe98bf Code cleanup in codec_thread, playback and pcmbuf; more elegant solution to leftover samples 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23471 a1c6a512-1295-4272-9138-f99709370657
 2009-11-01 19:39:23 +00:00
Jeffrey Goode
96bb9efdb7 Consolidate almost identical code in pcmbuf.c 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23318 a1c6a512-1295-4272-9138-f99709370657
 2009-10-23 01:01:00 +00:00
Jeffrey Goode
faa47bf1b7 Code cleanup in dsp.c and misc.c, some comments 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23314 a1c6a512-1295-4272-9138-f99709370657
 2009-10-22 00:59:42 +00:00
Jeffrey Goode
cf19ba5599 Replace limiter with dynamic range compressor 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22832 a1c6a512-1295-4272-9138-f99709370657
 2009-09-25 15:46:38 +00:00
Jeffrey Goode
2b7ef6b928 FS#10199: Adds limiter DSP function 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22394 a1c6a512-1295-4272-9138-f99709370657
 2009-08-18 03:24:45 +00:00
Jeffrey Goode
e3f36a1f47 FS#10446: Bug defense in dsp.c, minor tweaks and comments 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22282 a1c6a512-1295-4272-9138-f99709370657
 2009-08-12 19:00:31 +00:00
Michael Giacomelli
6469926b88 FS#10506. Don't compile various crossfade only functions in pcmbuf.c on low memory targets (mainly AMS) to save memory. Some crossfade related items remain in the code, but they're not worth cluttering the code with ifdefs over. Also, introduce HAVE_CROSSFADE define for neatness. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22248 a1c6a512-1295-4272-9138-f99709370657
 2009-08-11 02:05:38 +00:00
Dan Everton
d52c6614c5 Commit FS#10335 from Jeffrey Goode. 
Ensure that the PCM buffer is flushed at the end of the last track in a
playlist.



git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21316 a1c6a512-1295-4272-9138-f99709370657
 2009-06-17 08:47:51 +00:00