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path: root/apps/dsp.h
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2008-04-08Remove FRACMUL_8_LOOP macro. This only benefited Coldfire, and we have ↵Thom Johansen
assembler routines for the gain function there now. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17040 a1c6a512-1295-4272-9138-f99709370657
2008-04-08Remove ACC_INIT, ACC and GET_ACC macros. These were quite Coldfire-centric ↵Thom Johansen
macros which really aren't needed since all performance sensitive target DSP code should be assembler anyway. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17037 a1c6a512-1295-4272-9138-f99709370657
2007-11-18Make speex the new voice format for SWCODEC targets (non-Archos). Remove ↵Michael Sevakis
codec swapping and build speex voice decoding directly into the core binary. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15668 a1c6a512-1295-4272-9138-f99709370657
2007-11-05Remove conf_filechunk, it should never have been a setting and its ↵Brandon Low
implementation doesn't do what it claims any way git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15478 a1c6a512-1295-4272-9138-f99709370657
2007-11-05Remove unused conf_preseek from buffering.c and all of its accountraments. ↵Brandon Low
This is _not_ a setting. This is a guessing tool used by either playback or buffering to serve its clients better. Use the REBUFFER_GUESS size in resume to help obviate pondlife's bug. This will also need to be used when FS8092 gets fixed correctly with a complete rebuffer for backward movements. It may also belong in buffering not playback, haven't decided for sure git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15475 a1c6a512-1295-4272-9138-f99709370657
2007-05-10Code cleaning - remove some unnecessary defined(SIMULATOR) checksDave Chapman
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13369 a1c6a512-1295-4272-9138-f99709370657
2007-03-07Use the new DSP callback functionality in firmware/sound.c to deal with ↵Thom Johansen
SWCODEC stereo width and channel configuration instead of the old more spread out #ifdef based approach. Rename the DSP functions involved for more consistent naming. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12677 a1c6a512-1295-4272-9138-f99709370657
2007-02-26Add software based bass/treble controls for targets which have no such ↵Thom Johansen
functionality in hardware (currently only X5). They can also be used on any other SWCODEC target by adding #define HAVE_SW_TONE_CONTROLS in the relevant config-*.h file. Also remove some now unneeded zero checks when using get_replaygain_int(). Comments on sound quality are welcome as some parameters can still be fine-tuned. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12489 a1c6a512-1295-4272-9138-f99709370657
2007-02-24SWCODEC: Dsp speed optimizations. Changes for more modularity. Removal of ↵Michael Sevakis
some usless stuff. Some assembly routines for Coldfire with speed in mind over size for the outputs but the channel modes remain compact. Miscellaneous coldfire asm updates to accomodate the changes. Codec API structure version has to increase so do a full update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12472 a1c6a512-1295-4272-9138-f99709370657
2007-02-19SWCODEC: DSP optimizations for conversion to internal format and resampling. ↵Michael Sevakis
Assembly resampling for Coldfire. Word has it ARM will get that soon. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12399 a1c6a512-1295-4272-9138-f99709370657
2007-02-15Optimise/touchup some asm macros in dsp.h, and also remove some now unneeded ↵Thom Johansen
ones. Add config.h to dsp.c so that these macros actually get used, and also do some minor nitpicks to the resampler while I'm at it. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12322 a1c6a512-1295-4272-9138-f99709370657
2007-02-10SWCODEC: Annoying neatness update. Use intptr_t for codec_configure_callback ↵Michael Sevakis
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
2007-02-07Fix resampling clicking as much as possible at the moment. 1) Upsampling ↵Michael Sevakis
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
2007-02-05Optimise EQ coef calculation routines for both speed and size. Move now ↵Thom Johansen
unneeded fsqrt function to plugin fixed point library in case it'll be needed. Move all fixed point helper macros to dsp.h. Added FRACMUL_SHL macro to facilitate high-precision shifting of 64 bit multiplies and remove rounding from macsr in main thread to make this work as intended. Tested quite thorougly, but as always, be careful with your ears. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12203 a1c6a512-1295-4272-9138-f99709370657
2006-11-26SWCODEC: Stop clicks between tracks when resampler is active by only ↵Michael Sevakis
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
2006-10-27Re-enable the currently unused and broken dithering and noise shaping code ↵Thom Johansen
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
2006-08-30Applied patch #5879 by Andrew Cupper: Fix backward seeking bug.Magnus Holmgren
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10807 a1c6a512-1295-4272-9138-f99709370657
2006-04-22First commit of reworking voice to be mroe stable on swcodecBrandon Low
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9758 a1c6a512-1295-4272-9138-f99709370657
2006-04-11New crossfeed complete with no volume reducing bugs. Feedback on all theThom Johansen
new options is appreciated. Thanks to Dan Everton for the settings/GUI code. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9609 a1c6a512-1295-4272-9138-f99709370657
2006-03-28Update equalizer precut value as it's adjusted.Dan Everton
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9332 a1c6a512-1295-4272-9138-f99709370657
2006-03-27Add precut setting for the equalizer and add some more comments to the eq ↵Dan Everton
menu code. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9298 a1c6a512-1295-4272-9138-f99709370657
2006-03-21Enabled channel configuration and stereo width option on software codecThom Johansen
platforms. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9173 a1c6a512-1295-4272-9138-f99709370657
2006-02-17Reduce CPU usage while changing EQ by only updating the coefficients of the ↵Dan Everton
band being modified. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8718 a1c6a512-1295-4272-9138-f99709370657
2006-02-07Rework PCM bufferBrandon Low
* Linked list instead of static array buffer pointers * Variable sized chunks * Improved mix handling * Reduction in duplicated code * Reduced IRAM usage w/o sacrificing performance * Converted to almost entirely unsigned math * Add pause function to reduce pcm_* exposure to playback. This WILL break playback on the iPod until linuxstb makes a followup commit. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8612 a1c6a512-1295-4272-9138-f99709370657
2006-02-07Add Equalizer configuration to Sound Settings menu.Dan Everton
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8606 a1c6a512-1295-4272-9138-f99709370657
2006-02-04Committed a little too muchLinus Nielsen Feltzing
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8569 a1c6a512-1295-4272-9138-f99709370657
2006-02-04The simulator should use the keypad period key, not the regular oneLinus Nielsen Feltzing
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8568 a1c6a512-1295-4272-9138-f99709370657
2005-11-28Enabled playback speed adjustment support for H1x0. Modified the resampler ↵Thom Johansen
to do both channels in one pass. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8099 a1c6a512-1295-4272-9138-f99709370657
2005-11-18More stable playback with reduced stuttering when skipping tracks.Miika Pekkarinen
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
2005-11-14add crossfeed dsp effect. Makes some music more enjoyable with headphones.Marcoen Hirschberg
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7884 a1c6a512-1295-4272-9138-f99709370657
2005-09-21DSP_* constants moved from playback.h to dsp.h.Thom Johansen
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7529 a1c6a512-1295-4272-9138-f99709370657
2005-07-24ReplayGain support for Ogg Vorbis files (also called VorbisGain) added.Magnus Holmgren
Note that there is a small delay from leaving a setting until the change can be heard (due to audio data buffering). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7234 a1c6a512-1295-4272-9138-f99709370657
2005-07-16Restructured DSP code for readability and speed. Simplified the API.Magnus Holmgren
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7174 a1c6a512-1295-4272-9138-f99709370657
2005-07-06Decreased pcm buffer low watermark when crossfade is not enabled.Miika Pekkarinen
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7036 a1c6a512-1295-4272-9138-f99709370657
2005-06-26Initial DSP implementation. DSP supports resampling audio stream fromMiika Pekkarinen
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
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