6c868dd48f
Just use long so the compiler potentially doesn't complain about use of other values not in the enum. It's also the type used around the system for event ids. Increase min codec API version. No functional changes. Change-Id: If4419b42912f5e4ef673adcdeb69313e503f94cc
137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2010 Yoshihisa Uchida
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "codeclib.h"
|
|
#include "codecs/libtta/ttalib.h"
|
|
|
|
CODEC_HEADER
|
|
|
|
/*
|
|
* TTA (True Audio) codec:
|
|
*
|
|
* References
|
|
* [1] TRUE AUDIO CODEC SOFTWARE http://true-audio.com/
|
|
*/
|
|
|
|
static int32_t samples[PCM_BUFFER_LENGTH * 2] IBSS_ATTR;
|
|
|
|
/* this is the codec entry point */
|
|
enum codec_status codec_main(enum codec_entry_call_reason reason)
|
|
{
|
|
if (reason == CODEC_LOAD) {
|
|
/* Generic codec initialisation */
|
|
ci->configure(DSP_SET_SAMPLE_DEPTH, TTA_OUTPUT_DEPTH - 1);
|
|
}
|
|
|
|
return CODEC_OK;
|
|
}
|
|
|
|
/* this is called for each file to process */
|
|
enum codec_status codec_run(void)
|
|
{
|
|
tta_info info;
|
|
unsigned int decodedsamples;
|
|
int endofstream;
|
|
int new_pos = 0;
|
|
int sample_count;
|
|
intptr_t param;
|
|
|
|
if (codec_init())
|
|
{
|
|
DEBUGF("codec_init() error\n");
|
|
return CODEC_ERROR;
|
|
}
|
|
|
|
ci->seek_buffer(0);
|
|
|
|
if (set_tta_info(&info) < 0 || player_init(&info) < 0)
|
|
return CODEC_ERROR;
|
|
|
|
codec_set_replaygain(ci->id3);
|
|
|
|
ci->configure(DSP_SET_FREQUENCY, ci->id3->frequency);
|
|
if (info.NCH == 2) {
|
|
ci->configure(DSP_SET_STEREO_MODE, STEREO_INTERLEAVED);
|
|
} else if (info.NCH == 1) {
|
|
ci->configure(DSP_SET_STEREO_MODE, STEREO_MONO);
|
|
} else {
|
|
DEBUGF("CODEC_ERROR: more than 2 channels\n");
|
|
player_stop();
|
|
return CODEC_ERROR;
|
|
}
|
|
|
|
/* The main decoder loop */
|
|
decodedsamples = 0;
|
|
endofstream = 0;
|
|
|
|
if (ci->id3->offset || ci->id3->elapsed)
|
|
{
|
|
/* Need to save offset for later use (cleared indirectly by
|
|
advance_buffer) */
|
|
unsigned int pos = ci->id3->offset;
|
|
enum tta_seek_type type = TTA_SEEK_POS;
|
|
|
|
if (!pos) {
|
|
pos = ci->id3->elapsed / SEEK_STEP;
|
|
type = TTA_SEEK_TIME;
|
|
}
|
|
|
|
new_pos = set_position(pos, type);
|
|
|
|
if (new_pos >= 0)
|
|
decodedsamples = new_pos;
|
|
}
|
|
|
|
ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);
|
|
|
|
while (!endofstream)
|
|
{
|
|
long action = ci->get_command(¶m);
|
|
|
|
if (action == CODEC_ACTION_HALT)
|
|
break;
|
|
|
|
if (action == CODEC_ACTION_SEEK_TIME)
|
|
{
|
|
new_pos = set_position(param / SEEK_STEP, TTA_SEEK_TIME);
|
|
if (new_pos >= 0)
|
|
{
|
|
decodedsamples = new_pos;
|
|
}
|
|
|
|
ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);
|
|
ci->seek_complete();
|
|
}
|
|
|
|
sample_count = get_samples(samples);
|
|
if (sample_count < 0)
|
|
break;
|
|
|
|
ci->pcmbuf_insert(samples, NULL, sample_count);
|
|
decodedsamples += sample_count;
|
|
if (decodedsamples >= info.DATALENGTH)
|
|
endofstream = 1;
|
|
ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);
|
|
}
|
|
|
|
player_stop();
|
|
return CODEC_OK;
|
|
}
|