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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 1.1 2002/01/05 21:41:18 miguelfreitas Exp $
*
* closed caption spu decoder. receive data by events.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include "buffer.h"
#include "events.h"
#include "xine_internal.h"
#include "xineutils.h"
#include "cc_decoder.h"
/*
#define LOG 1
*/
typedef struct spucc_decoder_s {
spu_decoder_t spu_decoder;
xine_t *xine;
/* closed captioning decoder state */
cc_decoder_t *ccdec;
/* closed captioning decoder configuration */
cc_config_t cc_cfg;
int cc_open;
} spucc_decoder_t;
static int spudec_can_handle (spu_decoder_t *this_gen, int buf_type) {
/*int type = buf_type & 0xFFFF0000;
return (type == BUF_SPU_TEXT); */
return 0;
}
static void spudec_init (spu_decoder_t *this_gen, vo_instance_t *vo_out) {
spucc_decoder_t *this = (spucc_decoder_t *) this_gen;
/* initialize CC decoder */
this->ccdec = cc_decoder_open(this->xine->osd_renderer, this->xine->metronom,
this->xine->config, &this->cc_cfg);
this->cc_open = 1;
}
static void spudec_decode_data (spu_decoder_t *this_gen, buf_element_t *buf) {
spucc_decoder_t *this = (spucc_decoder_t *) this_gen;
int do_decode;
if (buf->decoder_info[0] == 0) {
} else {
if( !this->cc_open )
spudec_init (this_gen, NULL);
pthread_mutex_lock(&this->cc_cfg.cc_mutex);
do_decode = this->cc_cfg.vars.cc_enabled && this->cc_cfg.vars.can_cc;
pthread_mutex_unlock(&this->cc_cfg.cc_mutex);
if( do_decode ) {
decode_cc(this->ccdec, buf->content, buf->size,
buf->PTS, buf->SCR);
}
}
}
static void spudec_close (spu_decoder_t *this_gen) {
spucc_decoder_t *this = (spucc_decoder_t *) this_gen;
cc_decoder_close(this->ccdec);
this->cc_open = 0;
}
static void spudec_event_listener(void *this_gen, xine_event_t *event_gen) {
spucc_decoder_t *this = (spucc_decoder_t *) this_gen;
if((!this) || (!event_gen)) {
return;
}
switch (event_gen->type) {
case XINE_EVENT_FRAME_CHANGE:
{
xine_frame_change_event_t *frame_change =
(xine_frame_change_event_t *)event_gen;
if( !this->cc_open )
spudec_init (this_gen, NULL);
cc_notify_frame_change( this->ccdec, frame_change->width,
frame_change->height);
}
break;
case XINE_EVENT_CLOSED_CAPTION:
{
xine_closed_caption_event_t *closed_caption =
(xine_closed_caption_event_t *)event_gen;
int do_decode;
if( !this->cc_open )
spudec_init (this_gen, NULL);
pthread_mutex_lock(&this->cc_cfg.cc_mutex);
do_decode = this->cc_cfg.vars.cc_enabled && this->cc_cfg.vars.can_cc;
pthread_mutex_unlock(&this->cc_cfg.cc_mutex);
if( do_decode ) {
decode_cc(this->ccdec, closed_caption->buffer, closed_caption->buf_len,
closed_caption->pts, closed_caption->scr);
}
}
break;
}
}
static char *spudec_get_id(void) {
return "spucc";
}
spu_decoder_t *init_spu_decoder_plugin (int iface_version, xine_t *xine) {
spucc_decoder_t *this ;
if (iface_version != 4) {
printf("libspucc: doesn't support plugin api version %d.\n"
"libspucc: This means there is a version mismatch between xine and\n"
"libspucc: this plugin.\n", iface_version);
return NULL;
}
this = (spucc_decoder_t *) xine_xmalloc (sizeof (spucc_decoder_t));
this->spu_decoder.interface_version = iface_version;
this->spu_decoder.can_handle = spudec_can_handle;
this->spu_decoder.init = spudec_init;
this->spu_decoder.decode_data = spudec_decode_data;
this->spu_decoder.close = spudec_close;
this->spu_decoder.get_identifier = spudec_get_id;
this->spu_decoder.priority = 1;
this->xine = xine;
this->cc_open = 0;
cc_decoder_init(xine->config, &this->cc_cfg);
xine_register_event_listener(xine, spudec_event_listener, this);
return (spu_decoder_t *) this;
}
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