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27 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 Giacomelli
0497adffcf Commit FS#12130 - Fix ADX decoding on 64-bit systems by Sean Bartell. Fixes an incorrect assumption in the ADX decoder that sizeof(int) == 32 when performing fixed point math. Update comments in the fixed point library to correct this. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29927 a1c6a512-1295-4272-9138-f99709370657
 2011-05-26 21:22:29 +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
85e40257dc Enforce that codecs wait for their metadata in a proper-ish and consistent manner. Sort of a halfway patch; best would be to give them an internal copy of the current track information which lasts unaltered by playback until a track switch or unload. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29348 a1c6a512-1295-4272-9138-f99709370657
 2011-02-20 15:27:10 +00:00
Nils Wallménius
6325ef978b codecs: mark some local variables with 'static' 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27566 a1c6a512-1295-4272-9138-f99709370657
 2010-07-25 22:24:53 +00:00
Thomas Martitz
50a6ca39ad Move c/h files implementing/defining standard library stuff into a new libc directory, also standard'ify some parts of the code base (almost entirely #include fixes). 
This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
 2010-05-06 21:04:40 +00:00
Andree Buschmann
4d5e88245a Remove more tabs 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24550 a1c6a512-1295-4272-9138-f99709370657
 2010-02-07 18:38:47 +00:00
Maurus Cuelenaere
802743a061 Take 2 at 'Consolidate all fixed point math routines in one library' (FS#10400) by Jeffrey Goode 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21664 a1c6a512-1295-4272-9138-f99709370657
 2009-07-05 18:06:07 +00:00
Maurus Cuelenaere
c3bc8fda80 Revert "Consolidate all fixed point math routines in one library (FS#10400) by Jeffrey Goode" 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21635 a1c6a512-1295-4272-9138-f99709370657
 2009-07-04 13:17:58 +00:00
Maurus Cuelenaere
4710a32800 Consolidate all fixed point math routines in one library (FS#10400) by Jeffrey Goode 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21633 a1c6a512-1295-4272-9138-f99709370657
 2009-07-04 12:26:45 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 18:10:04 +00:00
Adam Gashlin
460d6d2d22 clear up some sim warnings 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16419 a1c6a512-1295-4272-9138-f99709370657
 2008-02-25 21:57:09 +00:00
Adam Gashlin
2668547a55 Fix ADX decoder, old constant coefficients were for 44.1khz only, they 
are now calculated at runtime.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16418 a1c6a512-1295-4272-9138-f99709370657
 2008-02-25 21:47:56 +00:00
Adam Gashlin
b9dba4f128 Sorry, switching back again to the "better behaved" ADX codec of r15494. 
Not perfect, but with a safer failure than the hacky old/reborn one.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15548 a1c6a512-1295-4272-9138-f99709370657
 2007-11-09 02:42:39 +00:00
Adam Gashlin
1c108df4ee Revert to old ADX codec, works around broken bacwards seek 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15518 a1c6a512-1295-4272-9138-f99709370657
 2007-11-07 19:01:58 +00:00
Adam Gashlin
b848c683d6 Better behaved buffering. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15494 a1c6a512-1295-4272-9138-f99709370657
 2007-11-06 16:29:28 +00:00
Brandon Low
3379440a4b Remove conf_filechunk, it should never have been a setting and its implementation doesn't do what it claims any way 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15478 a1c6a512-1295-4272-9138-f99709370657
 2007-11-05 17:48:21 +00:00
Jens Arnold
bd5c0ad7bb Cast some more to keep both 32 bit and 64 bit simulator platforms happy. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12819 a1c6a512-1295-4272-9138-f99709370657
 2007-03-17 10:50:58 +00:00
Jens Arnold
f68362ad6f Fix simulator builds, and some debugf() format strings. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12817 a1c6a512-1295-4272-9138-f99709370657
 2007-03-17 09:54:28 +00:00
Michael Sevakis
9b9e22731c SWCODEC: Fix the problem of replaygain not being applied unless the menu is entered. Make all codecs set the replay gain or else formats that do not have replaygain will not set the gain back to default if a file with gain applied proceeded them. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12498 a1c6a512-1295-4272-9138-f99709370657
 2007-02-26 17:15:04 +00:00
Michael Sevakis
97f369a587 SWCODEC: Annoying neatness update. Use intptr_t for codec_configure_callback and dsp_configure and stop all the silly type casting of intergral types to pointers to set dsp configuration and watermarks. Shouldn't have any effect on already compiled codecs at all. Will fix any important patches in the tracker so they compile. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12259 a1c6a512-1295-4272-9138-f99709370657
 2007-02-10 16:34:16 +00:00
Michael Sevakis
aba6ca0881 Fix resampling clicking as much as possible at the moment. 1) Upsampling clicked because of size inaccuracies returned by DSP. Fix by simplifying audio system to use per-channel sample count from codec to pcm buffer. 2) Downsampling affected by 1) and was often starting passed the end of the data when not enough was available to generate an output sample. Fix by clamping input range to last sample in buffer and using the last sample value in the buffer. A perfect fix will require a double buffering scheme on the resampler to sufficient data during small data transients on both ends at all times of the down ratio on input and the up ratio on output. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12218 a1c6a512-1295-4272-9138-f99709370657
 2007-02-07 00:51:50 +00:00
Tomasz Malesinski
80da8b141c FS#6357, patch 1: let iramcopy and bss share the same space in codecs and 
plugins. Currently, in case of plugins using IRAM bss is cleared twice,
once in the loader, once in PLUGIN_IRAM_INIT. For codecs, bss is cleared only
during codec initialization. Also, removed double variables in codecs
storing a pointer to codec_api.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11606 a1c6a512-1295-4272-9138-f99709370657
 2006-11-26 18:31:41 +00:00
Michael Sevakis
bbef13eddf SWCODEC: Stop clicks between tracks when resampler is active by only switching the DSP frequency and not resetting the resampler at track boundaries. Will make sure DSP is correctly flushed at dicontinuities but don't hear any problems currently. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11600 a1c6a512-1295-4272-9138-f99709370657
 2006-11-26 12:02:47 +00:00
Thom Johansen
354770088e Re-enable the currently unused and broken dithering and noise shaping code already in Rockbox, and make it a user option instead of a codec-controlled option. The majority of people probably will not even hear any difference with this enabled, but feedback is welcome. Save your settings! 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11368 a1c6a512-1295-4272-9138-f99709370657
 2006-10-27 20:41:33 +00:00
Rani Hod
d5429307d5 oops, forgot to 'cvs add' it [thanks for reminding me, linuxstb] 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11047 a1c6a512-1295-4272-9138-f99709370657
 2006-09-25 16:35:03 +00:00