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36 commits

Author SHA1 Message Date
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
Andree Buschmann
e75018ad66 Fix several 'variable set but not used' warnings reported from GCC 4.6.0. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29805 a1c6a512-1295-4272-9138-f99709370657
 2011-05-01 11:42:41 +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
Björn Stenberg
6427d127aa Calculate watermark from bitrate and harddisk spinup time. 
Use a smaller PCM buffer on targets with 2MB or less ram.
(FS#9703)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19743 a1c6a512-1295-4272-9138-f99709370657
 2009-01-10 21:10:56 +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
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
Dave Bryant
bcf97a4801 Move WavPack metadata parsing to its own file and add handling of non-standard sampling rates 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14289 a1c6a512-1295-4272-9138-f99709370657
 2007-08-12 06:36:06 +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
Brandon Low
f3bc1efc49 First commit of reworking voice to be mroe stable on swcodec 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9758 a1c6a512-1295-4272-9138-f99709370657
 2006-04-22 14:40:13 +00:00
Brandon Low
ebadcc633a Put new_track on the codec_api, and use it instead of the reload_codec variable in most places. Should help with problems people have had with GUI vs. playback sync. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9670 a1c6a512-1295-4272-9138-f99709370657
 2006-04-15 02:03:11 +00:00
Dave Bryant
0ad19c7262 Eliminate references to "long" types for 64-bit compiles; return audio data 
in Rockbox standard S3.28 format


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9272 a1c6a512-1295-4272-9138-f99709370657
 2006-03-26 22:54:15 +00:00
Dave Bryant
ff40af42ba Streamlined WavPack decoder by utilizing dsp functionality where it was 
applicable (like mono conversion and clipping) and eliminating the
conversion to 16-bit samples (everything is now returned as 28-bit).
This reduced boost ratio (on iRiver) by about 7% on those tracks that
require it.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8598 a1c6a512-1295-4272-9138-f99709370657
 2006-02-06 07:40:35 +00:00
Brandon Low
1060e447f8 Part of the profiling patch to use a consistent return path in all codecs to facilitate 'on exit' functionality 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8374 a1c6a512-1295-4272-9138-f99709370657
 2006-01-18 20:22:03 +00:00
Jens Arnold
b8749fdf21 New codec loader, using the same mechanism as the new plugin loader. API version numbering restarted for the new system. Uses the target ID from configure, so don't change that too often. * Fixed sim_plugin_load_ram() to truncate the tempfile. * Reduced plugin buffer size to 512KB for iriver and iPod. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8362 a1c6a512-1295-4272-9138-f99709370657
 2006-01-18 00:05:14 +00:00
Jens Arnold
07c4254135 Don't include the .bss and .ibss sections in the binary image for codecs and plugins. Saves quite some disk space (and buffer space in case of codec changes during playback). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8308 a1c6a512-1295-4272-9138-f99709370657
 2006-01-08 22:50:14 +00:00
Miika Pekkarinen
9c0f1a9e39 More stable playback with reduced stuttering when skipping tracks. 
Removed CODEC_SET_FILEBUF_LIMIT setting; now playback.c determines how
to buffer the files.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7970 a1c6a512-1295-4272-9138-f99709370657
 2005-11-18 20:21:13 +00:00
Thom Johansen
c8193b8da5 The seek_time member of the codec API needs to be decremented before use as a seeking time. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7768 a1c6a512-1295-4272-9138-f99709370657
 2005-11-06 19:18:04 +00:00
Dave Chapman
5006d15d1e Call ci->seek_complete() callback after processing a seek request (an old API change that wasn't implemented in all the codecs) 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7717 a1c6a512-1295-4272-9138-f99709370657
 2005-11-02 00:09:42 +00:00
Thom Johansen
e6021381ef Introduced usage of IBSS_ATTR and ICONST_ATTR to codec plugins. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7659 a1c6a512-1295-4272-9138-f99709370657
 2005-10-27 11:32:02 +00:00
Thom Johansen
c91e0bbfc9 Cleaned up the messy codec header and library system by merging codec.h, lib/codeclib.[ch] and lib/xxx2wav.[ch] into just codeclib.[ch]. Deleted much of the unused code in the xxx2wav portion. All codecs should now only include codeclib.h, and whatever codec specific headers are needed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7626 a1c6a512-1295-4272-9138-f99709370657
 2005-10-13 11:32:52 +00:00
Dave Bryant
f0fe3c9477 Fix some WavPack bugs by forcing DSP use even when not needed for sampling rate 
conversion or ReplayGain. Costs about 12% boost ratio when DSP would not have
been used before.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7573 a1c6a512-1295-4272-9138-f99709370657
 2005-09-30 21:11:31 +00:00
Thom Johansen
bccf58621e Removed unnecessary codec_api struct. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7551 a1c6a512-1295-4272-9138-f99709370657
 2005-09-23 00:12:02 +00:00
Dave Bryant
c5ebc8e4e4 Added ReplayGain support to WavPack, including a small fix to dsp.c 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7237 a1c6a512-1295-4272-9138-f99709370657
 2005-07-25 03:34:25 +00:00
Miika Pekkarinen
20b3897474 Separated buffering stuff from pcm_playback to pcmbuf. Renamed some 
function calls (audiobuffer -> pcmbuf etc.).


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7131 a1c6a512-1295-4272-9138-f99709370657
 2005-07-13 12:48:22 +00:00
Miika Pekkarinen
fbd4088df8 Replaced some yields with sleep(1) to save battery while paused or 
playing files which doesn't require cpu boosting.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7103 a1c6a512-1295-4272-9138-f99709370657
 2005-07-11 18:47:47 +00:00
Miika Pekkarinen
0d63cbba4b Fixed a problem with transition to next album which caused rockbox 
virtually to crash.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7096 a1c6a512-1295-4272-9138-f99709370657
 2005-07-10 20:37:36 +00:00
Dave Bryant
1983738ea1 Not sure if this is the right way to make "resume" work correctly for WavPack, 
but it seems to work and if it's wrong it should only affect WavPack...


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6938 a1c6a512-1295-4272-9138-f99709370657
 2005-06-30 06:09:59 +00:00
Dave Bryant
24d6535b7a Allow WavPack to use new sampling rate converter 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6888 a1c6a512-1295-4272-9138-f99709370657
 2005-06-27 00:12:40 +00:00
Miika Pekkarinen
d8cb703b1e Initial DSP implementation. DSP supports resampling audio stream from 
codecs (currently works corrently only with mp3's, somebody should fix
that).


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6877 a1c6a512-1295-4272-9138-f99709370657
 2005-06-26 19:41:29 +00:00
Daniel Stenberg
31efab4909 removed the use of the 2nd argument to codec_start() since no codec used 
it anymore


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6814 a1c6a512-1295-4272-9138-f99709370657
 2005-06-22 19:55:09 +00:00
Daniel Stenberg
1dd672fe32 moved and renamed the codecs, gave the codecs a new extension (.codec), 
unified to a single codec-only API, made a new codeclib, disabled the building
of the *2wav plugins


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6812 a1c6a512-1295-4272-9138-f99709370657
 2005-06-22 19:41:30 +00:00
Renamed from apps/plugins/codecwavpack.c (Browse further)