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* More strictly enforce "no PCM insert" rules for codecs.Michael Sevakis2012-05-13
| | | | | | | | Takes care of when codecs try to sneak-in another PCM buffer insert at the wrong time. Codecs are wiley and just can't always be trusted to cooperate. Change-Id: Idc2f51238a5fd69a9d9c0741fbc29addc6615bdf
* Stop clickiness on manual track changes as best as possible.Michael Sevakis2012-05-07
| | | | | | | | Get the DSP_FLUSH sprinkled in the right spot so that history- keeping prcessing stages are cleared on a forced stop. They already were on a seek. Change-Id: I560f1bc5fd813a4142fa099bf53ee1658e49cd8c
* Make rbcodec/dsp includes more specific.Michael Sevakis2012-04-29
| | | | Change-Id: Idb6af40df26f5b8499a40e8b98602261ef227044
* Fundamentally rewrite much of the audio DSP.Michael Sevakis2012-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Creates a standard buffer passing, local data passing and messaging system for processing stages. Stages can be moved to their own source files to reduce clutter and ease assimilation of new ones. dsp.c becomes dsp_core.c which supports an engine and framework for effects. Formats and change notifications are passed along with the buffer so that they arrive at the correct time at each stage in the chain regardless of the internal delays of a particular one. Removes restrictions on the number of samples that can be processed at a time and it pays attention to destination buffer size restrictions without having to limit input count, which also allows pcmbuf to remain fuller and safely set its own buffer limits as it sees fit. There is no longer a need to query input/output counts given a certain number of input samples; just give it the sizes of the source and destination buffers. Works in harmony with stages that are not deterministic in terms of sample input/output ratio (like both resamplers but most notably the timestretch). As a result it fixes quirks with timestretch hanging up with certain settings and it now operates properly throughout its full settings range. Change-Id: Ib206ec78f6f6c79259c5af9009fe021d68be9734 Reviewed-on: http://gerrit.rockbox.org/200 Reviewed-by: Michael Sevakis <jethead71@rockbox.org> Tested-by: Michael Sevakis <jethead71@rockbox.org>
* Commit to certain names for cache coherency APIs and discard the aliases.Michael Sevakis2011-12-17
| | | | | | | Wouldn't surprise me a bit to get some non-green. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31339 a1c6a512-1295-4272-9138-f99709370657
* Remove obsolete init cruft from audio system because of diminished ↵Michael Sevakis2011-09-01
| | | | | | dependencies. All talk/voice dependency in playback.c should be imminently removable. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30401 a1c6a512-1295-4272-9138-f99709370657
* Submit parts of FS#12189 regarding codec API. Replaces access to global ↵Andree Buschmann2011-08-30
| | | | | | settings with a dedicated function to determine if the current track shall be looped. Used by several synthesizer codecs. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30391 a1c6a512-1295-4272-9138-f99709370657
* Commit work started in FS#12153 to put timing/position information in PCMMichael Sevakis2011-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | 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
* is_codec_thread() is not needed anymore since PCM buffer calls other than ↵Michael Sevakis2011-07-21
| | | | | | 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
* Renaming for the sake of consistency.Andree Buschmann2011-05-09
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29846 a1c6a512-1295-4272-9138-f99709370657
* Move implementation of codec_get_buffer() to codec.c, make related variables ↵Andree Buschmann2011-05-08
| | | | | | static. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29839 a1c6a512-1295-4272-9138-f99709370657
* Commit FS#12069 - Playback rework - first stages. Gives as thorough as ↵Michael Sevakis2011-04-27
| | | | | | 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
* Purge buffer and codec APIs existing exclusively in support of mpa.codec and ↵Michael Sevakis2011-03-16
| | | | | | fix that to not require them: buf_get_offset and ci.advance_buffer_loc. Sort APIs; everything must become incompatible. :( git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29595 a1c6a512-1295-4272-9138-f99709370657
* Remove malloc_buf references from playback.c since it's no longer used for ↵Michael Sevakis2011-03-06
| | | | | | anything and align the codec slack space buffer that is now use as the malloc buffer. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29533 a1c6a512-1295-4272-9138-f99709370657
* Change the thread api a bit.Thomas Martitz2011-03-05
| | | | | | | * Remove THREAD_ID_CURRENT macro in favor of a thread_self() function, this allows thread functions to be simpler. * thread_self_entry() shortcut for kernel.c. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29521 a1c6a512-1295-4272-9138-f99709370657
* Give playback engine better control over the codec. Codec simply follows ↵Michael Sevakis2011-02-23
| | | | | | 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
* All kernel objects in code shared amongs targets (core, plugins, codecs) ↵Michael Sevakis2011-02-14
| | | | | | should be declared SHAREDBSS_ATTR as any core could potentially touch them even though they seem only to involve threads on one core. The exception is target code for particular CPUs where proper allocation is fixed. playlist.c was a little odd too-- use one mutex for the current playlist and a separate one for created playlists (still pondering the necessity of more than one). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29305 a1c6a512-1295-4272-9138-f99709370657
* Submit FS#11918: Add 2 more codec types to be able to differentiate between ↵Andree Buschmann2011-02-03
| | | | | | AAC / AAC-HE and MPC SV7 / SV8. Additionally handle ATARI soundfiles in get_codec_base_type() as intended. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29199 a1c6a512-1295-4272-9138-f99709370657
* pcmbuf: bug fix with pcmbuf flush, code cleanup, added commentsJeffrey Goode2009-11-11
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23608 a1c6a512-1295-4272-9138-f99709370657
* Crossfade: carved out crossfade related code with lots of HAVE_CORSSFADE ↵Jeffrey Goode2009-11-10
| | | | | | conditionals, eliminated fade buffer on low memory targets git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23597 a1c6a512-1295-4272-9138-f99709370657
* pcmbuf: more refactoringJeffrey Goode2009-11-09
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23588 a1c6a512-1295-4272-9138-f99709370657
* Playback: removed duplicate functionsJeffrey Goode2009-11-09
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23576 a1c6a512-1295-4272-9138-f99709370657
* pcmbuf: clarify and simplify crossfade code, etc.Jeffrey Goode2009-11-05
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23538 a1c6a512-1295-4272-9138-f99709370657
* pcmbuf: better latency calculation, added debug codeJeffrey Goode2009-11-05
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23537 a1c6a512-1295-4272-9138-f99709370657
* Clarify track transition code in pcmbuf and playback. No functional changes yet.Jeffrey Goode2009-11-04
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23506 a1c6a512-1295-4272-9138-f99709370657
* Code cleanup in codec_thread, playback and pcmbuf; more elegant solution to ↵Jeffrey Goode2009-11-01
| | | | | | leftover samples git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23471 a1c6a512-1295-4272-9138-f99709370657
* FS#10739: playback.c code splitJeffrey Goode2009-10-31
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23444 a1c6a512-1295-4272-9138-f99709370657
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