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142 lines
2.9 KiB
142 lines
2.9 KiB
/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA
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*
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*
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* Linux digital audio functions.
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*
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*
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* Forget /dev/audio
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* most modern soundcards accept 16LE with 44.1kHz
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* Alexander Kern alex.kern@gmx.de
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*/
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#include <config.h>
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#ifdef USE_ARTS
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#include <artsc.h>
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#include "audio.h"
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arts_stream_t arts_stream = NULL;
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int arts_open(void);
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int arts_close(void);
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int arts_stop(void);
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int arts_play(struct cdda_block *blk);
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int arts_state(struct cdda_block *blk);
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struct audio_oops* setup_arts(const char *dev, const char *ctl);
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/*
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* Initialize the audio device.
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*/
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int
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arts_open(void)
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{
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int err;
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DEBUGLOG("arts_open\n");
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if(!(arts_stream = arts_play_stream(44100, 16, 2, "cddaslave"))) {
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ERRORLOG("cannot open ARTS stream for playback\n");
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return -1;
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}
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/* 1000 ms because we read 75 frames = 1 sec */
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if((err = arts_stream_set(arts_stream, ARTS_P_BUFFER_TIME, 1000)) < 0) {
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ERRORLOG("arts_stream_set failed (%s)\n", arts_error_text(err));
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return -1;
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}
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return 0;
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}
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/*
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* Close the audio device.
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*/
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int
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arts_close(void)
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{
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arts_stop();
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DEBUGLOG("arts_close\n");
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arts_close_stream(arts_stream);
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arts_free();
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return 0;
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}
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/*
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* Play some audio and pass a status message upstream, if applicable.
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* Returns 0 on success.
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*/
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int
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arts_play(struct cdda_block *blk)
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{
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int err;
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if((err = arts_write(arts_stream, blk->buf, blk->buflen)) < 0) {
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ERRORLOG("arts_write failed (%s)\n", arts_error_text(err));
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blk->status = WM_CDM_CDDAERROR;
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return -1;
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}
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return 0;
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}
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/*
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* Stop the audio immediately.
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*/
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int
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arts_stop(void)
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{
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DEBUGLOG("arts_stop\n");
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return 0;
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}
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/*
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* Get the current audio state.
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*/
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int
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arts_state(struct cdda_block *blk)
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{
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return -1; /* not implemented yet for ARTS */
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}
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static struct audio_oops arts_oops = {
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.wmaudio_open = arts_open,
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.wmaudio_close = arts_close,
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.wmaudio_play = arts_play,
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.wmaudio_stop = arts_stop,
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.wmaudio_state = arts_state,
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.wmaudio_balance = NULL,
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.wmaudio_volume = NULL
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};
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struct audio_oops*
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setup_arts(const char *dev, const char *ctl)
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{
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int err;
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if((err = arts_init())) {
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ERRORLOG("cannot initialize ARTS audio subsystem (%s)\n", arts_error_text(err));
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return NULL;
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}
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arts_open();
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return &arts_oops;
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}
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#endif
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