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/*
* ao_arts - aRts audio output driver for MPlayer
*
* Michele Balistreri <brain87@gmx.net>
*
* This driver is distribuited under terms of GPL
*
*/
#include <artsc.h>
#include <stdio.h>
#include "audio_out.h"
#include "audio_out_internal.h"
#include "afmt.h"
#include "../config.h"
#include "../mp_msg.h"
#define OBTAIN_BITRATE(a) (((a != AFMT_U8) || (a != AFMT_S8)) ? 16 : 8)
static arts_stream_t stream;
static ao_info_t info =
{
"aRts audio output",
"arts",
"Michele Balistreri <brain87@gmx.net>",
""
};
LIBAO_EXTERN(arts)
static int control(int cmd, int arg)
{
return(CONTROL_UNKNOWN);
}
static int init(int rate_hz, int channels, int format, int flags)
{
int err;
int frag_spec;
if(err=arts_init()) {
mp_msg(MSGT_AO, MSGL_ERR, "AO: [arts] %s\n", arts_error_text(err));
return 0;
}
else
mp_msg(MSGT_AO, MSGL_INFO, "AO: [arts] Connected to sound server\n");
ao_data.format = format;
ao_data.channels = channels;
ao_data.samplerate = rate_hz;
ao_data.bps = (rate_hz*channels);
ao_data.buffersize = 4096;
if(format != AFMT_U8 && format != AFMT_S8)
ao_data.bps*=2;
for (frag_spec = 0; (0x01<<frag_spec) < ao_data.buffersize; ++frag_spec)
;
frag_spec |= 0x00020000;
stream=arts_play_stream(rate_hz, OBTAIN_BITRATE(format), channels, "Mplayer");
arts_stream_set(stream, ARTS_P_PACKET_SETTINGS, frag_spec);
arts_stream_set(stream, ARTS_P_BLOCKING, 0);
if(stream == NULL) {
mp_msg(MSGT_AO, MSGL_ERR, "AO: [arts] Unable to open a stream\n");
return 0;
}
else
mp_msg(MSGT_AO, MSGL_INFO, "AO: [arts] Stream opened\n");
return 1;
}
static void uninit()
{
arts_close_stream(stream);
arts_free();
}
static int play(void* data,int len,int flags)
{
arts_write(stream, data, len);
}
static void audio_pause()
{
}
static void audio_resume()
{
}
static void reset()
{
}
static int get_space()
{
return arts_stream_get(stream, ARTS_P_BUFFER_SPACE);
}
static float get_delay()
{
return ((float) arts_stream_get(stream, ARTS_P_BUFFER_SIZE) / (float) ao_data.bps);
}
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