c9bcbe202d
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>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2005 Miika Pekkarinen
|
|
* Copyright (C) 2005 Magnus Holmgren
|
|
* Copyright (C) 2007 Thom Johansen
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#ifndef DSP_MISC_H
|
|
#define DSP_MISC_H
|
|
|
|
/* Set the tri-pdf dithered output */
|
|
void dsp_dither_enable(bool enable); /* in dsp_sample_output.c */
|
|
|
|
/* Structure used with REPLAYGAIN_SET_GAINS message */
|
|
#define REPLAYGAIN_SET_GAINS (DSP_PROC_SETTING+DSP_PROC_MISC_HANDLER)
|
|
struct dsp_replay_gains
|
|
{
|
|
long track_gain;
|
|
long album_gain;
|
|
long track_peak;
|
|
long album_peak;
|
|
};
|
|
|
|
int get_replaygain_mode(bool have_track_gain, bool have_album_gain);
|
|
void dsp_set_replaygain(void);
|
|
|
|
#ifdef HAVE_PITCHSCREEN
|
|
void sound_set_pitch(int32_t ratio);
|
|
int32_t sound_get_pitch(void);
|
|
#endif /* HAVE_PITCHSCREEN */
|
|
|
|
/* Callback for firmware layers to interface */
|
|
int dsp_callback(int msg, intptr_t param);
|
|
|
|
#endif /* DSP_MISC_H */
|