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
3.9 KiB
C
137 lines
3.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 David Bryant
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "codeclib.h"
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#include "libwavpack/wavpack.h"
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CODEC_HEADER
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#define BUFFER_SIZE 4096
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static int32_t temp_buffer [BUFFER_SIZE] IBSS_ATTR;
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static int32_t read_callback (void *buffer, int32_t bytes)
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{
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int32_t retval = ci->read_filebuf (buffer, bytes);
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ci->set_offset(ci->curpos);
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return retval;
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}
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/* this is the codec entry point */
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enum codec_status codec_main(enum codec_entry_call_reason reason)
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{
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if (reason == CODEC_LOAD) {
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/* Generic codec initialisation */
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ci->configure(DSP_SET_SAMPLE_DEPTH, 28);
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}
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return CODEC_OK;
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}
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/* this is called for each file to process */
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enum codec_status codec_run(void)
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{
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WavpackContext *wpc;
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char error [80];
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/* rockbox: comment 'set but unused' variables
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int bps;
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*/
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int nchans, sr_100;
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unsigned long offset;
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intptr_t param;
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if (codec_init())
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return CODEC_ERROR;
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param = ci->id3->elapsed;
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offset = ci->id3->offset;
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ci->seek_buffer (offset);
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/* Create a decoder instance */
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wpc = WavpackOpenFileInput (read_callback, error);
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if (!wpc)
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return CODEC_ERROR;
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ci->configure(DSP_SET_FREQUENCY, WavpackGetSampleRate (wpc));
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codec_set_replaygain(ci->id3);
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/* bps = WavpackGetBytesPerSample (wpc); */
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nchans = WavpackGetReducedChannels (wpc);
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ci->configure(DSP_SET_STEREO_MODE, nchans == 2 ? STEREO_INTERLEAVED : STEREO_MONO);
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sr_100 = ci->id3->frequency / 100;
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if (!offset && param) {
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goto resume_start; /* resume by elapsed */
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}
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else {
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ci->set_elapsed (WavpackGetSampleIndex (wpc) / sr_100 * 10);
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}
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/* The main decoder loop */
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while (1) {
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int32_t nsamples;
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long action = ci->get_command(¶m);
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if (action == CODEC_ACTION_HALT)
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break;
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if (action == CODEC_ACTION_SEEK_TIME) {
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resume_start:;
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int curpos_ms = WavpackGetSampleIndex (wpc) / sr_100 * 10;
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int n, d, skip;
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if (param > curpos_ms) {
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n = param - curpos_ms;
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d = ci->id3->length - curpos_ms;
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skip = (int)((int64_t)(ci->filesize - ci->curpos) * n / d);
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ci->seek_buffer (ci->curpos + skip);
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}
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else if (curpos_ms != 0) {
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n = curpos_ms - param;
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d = curpos_ms;
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skip = (int)((int64_t) ci->curpos * n / d);
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ci->seek_buffer (ci->curpos - skip);
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}
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wpc = WavpackOpenFileInput (read_callback, error);
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if (!wpc)
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{
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ci->seek_complete();
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break;
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}
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ci->set_elapsed (WavpackGetSampleIndex (wpc) / sr_100 * 10);
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ci->seek_complete();
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}
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nsamples = WavpackUnpackSamples (wpc, temp_buffer, BUFFER_SIZE / nchans);
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if (!nsamples)
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break;
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ci->pcmbuf_insert (temp_buffer, NULL, nsamples);
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ci->set_elapsed (WavpackGetSampleIndex (wpc) / sr_100 * 10);
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}
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return CODEC_OK;
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}
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