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/*
* Copyright (C) 2000-2001 the xine project
*
* This file is part of xine, a unix video player.
*
* xine 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.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: xine_decoder.c,v 1.6 2001/12/11 15:30:06 miguelfreitas Exp $
*
* stuff needed to turn libmpg123 into a xine decoder plugin
*/
/*
* FIXME: libmpg123 uses global variables (that are written to)
*/
#include <stdlib.h>
#include "audio_out.h"
#include "mpg123.h"
#include "mpglib.h"
#include "buffer.h"
#include "xine_internal.h"
#define FRAME_SIZE 4096
typedef struct mpgdec_decoder_s {
audio_decoder_t audio_decoder;
uint32_t pts;
mpgaudio_t *mpg;
ao_instance_t *audio_out;
int output_sampling_rate;
int output_open;
} mpgdec_decoder_t;
int mpgdec_can_handle (audio_decoder_t *this_gen, int buf_type) {
return ((buf_type & 0xFFFF0000) == BUF_AUDIO_MPEG) ;
}
void mpgdec_reset (audio_decoder_t *this_gen) {
mpgdec_decoder_t *this = (mpgdec_decoder_t *) this_gen;
mpg_audio_reset (this->mpg);
}
void mpgdec_init (audio_decoder_t *this_gen, ao_instance_t *audio_out) {
mpgdec_decoder_t *this = (mpgdec_decoder_t *) this_gen;
this->audio_out = audio_out;
this->mpg = mpg_audio_init (audio_out);
}
void mpgdec_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
mpgdec_decoder_t *this = (mpgdec_decoder_t *) this_gen;
/*
printf ("libmpg123: decode data\n");
fflush (stdout);
*/
if (buf->decoder_info[0] >0) {
/*
printf ("libmpg123: decode data - doing it\n");
fflush (stdout);
*/
mpg_audio_decode_data (this->mpg, buf->content, buf->content + buf->size,
buf->PTS);
}
}
void mpgdec_close (audio_decoder_t *this_gen) {
mpgdec_decoder_t *this = (mpgdec_decoder_t *) this_gen;
mpg_audio_close (this->mpg);
if (this->output_open)
this->audio_out->close (this->audio_out);
}
static char *mpgdec_get_id(void) {
return "mpgdec";
}
audio_decoder_t *init_audio_decoder_plugin (int iface_version, config_values_t *cfg) {
mpgdec_decoder_t *this ;
if (iface_version != 2) {
printf( "libmpg123: plugin doesn't support plugin API version %d.\n"
"libmpg123: this means there's a version mismatch between xine and this "
"libmpg123: decoder plugin.\nInstalling current plugins should help.\n",
iface_version);
return NULL;
}
this = (mpgdec_decoder_t *) malloc (sizeof (mpgdec_decoder_t));
this->audio_decoder.interface_version = 2;
this->audio_decoder.can_handle = mpgdec_can_handle;
this->audio_decoder.init = mpgdec_init;
this->audio_decoder.reset = mpgdec_reset;
this->audio_decoder.decode_data = mpgdec_decode_data;
this->audio_decoder.close = mpgdec_close;
this->audio_decoder.get_identifier = mpgdec_get_id;
this->audio_decoder.priority = 1;
return (audio_decoder_t *) this;
}
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