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21 commits

Author SHA1 Message Date
Andree Buschmann
e88d24a840 Submit parts of FS#12189 regarding codec API. Replaces access to global 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
 2011-08-30 19:40:09 +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
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
Andree Buschmann
1ee4e89627 Renaming for the sake of consistency. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29846 a1c6a512-1295-4272-9138-f99709370657
 2011-05-09 19:34:45 +00:00
Andree Buschmann
d68d02ec11 Move implementation of codec_get_buffer() to codec.c, make related variables static. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29839 a1c6a512-1295-4272-9138-f99709370657
 2011-05-08 20:18:35 +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
56dd75d204 Purge buffer and codec APIs existing exclusively in support of mpa.codec and 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
 2011-03-16 05:38:37 +00:00
Michael Sevakis
7d2ab2df5f Remove malloc_buf references from playback.c since it's no longer used for 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
 2011-03-06 02:03:37 +00:00
Thomas Martitz
cc889e9d60 Change the thread api a bit. 
* 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
 2011-03-05 17:48:06 +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
Michael Sevakis
b15aa47c56 All kernel objects in code shared amongs targets (core, plugins, codecs) 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
 2011-02-14 11:27:45 +00:00
Andree Buschmann
7345ac124e Submit FS#11918: Add 2 more codec types to be able to differentiate between 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
 2011-02-03 08:28:23 +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
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
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
20db9cc39e Playback: removed duplicate functions 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23576 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 05:43:19 +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
9a4420bf96 FS#10739: playback.c code split 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23444 a1c6a512-1295-4272-9138-f99709370657
 2009-10-31 19:17:36 +00:00