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/*
* Copyright (C) 2000-2002 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 1.24 2002/03/11 12:31:26 guenter Exp $
*
* stuff needed to turn libmpeg2 into a xine decoder plugin
*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "video_out.h"
#include "mpeg2.h"
#include "mpeg2_internal.h"
#include "buffer.h"
#include "xine_internal.h"
/*
#define LOG
*/
typedef struct mpeg2dec_decoder_s {
video_decoder_t video_decoder;
mpeg2dec_t mpeg2;
vo_instance_t *video_out;
pthread_mutex_t lock; /* mutex for async flush */
} mpeg2dec_decoder_t;
static int mpeg2dec_can_handle (video_decoder_t *this_gen, int buf_type) {
return ((buf_type & 0xFFFF0000) == BUF_VIDEO_MPEG) ;
}
static void mpeg2dec_init (video_decoder_t *this_gen, vo_instance_t *video_out) {
mpeg2dec_decoder_t *this = (mpeg2dec_decoder_t *) this_gen;
#ifdef LOG
printf ("libmpeg2: init... \n");
#endif
pthread_mutex_lock (&this->lock);
mpeg2_init (&this->mpeg2, video_out);
video_out->open(video_out);
this->video_out = video_out;
pthread_mutex_unlock (&this->lock);
#ifdef LOG
printf ("libmpeg2: init...done\n");
#endif
}
static void mpeg2dec_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
mpeg2dec_decoder_t *this = (mpeg2dec_decoder_t *) this_gen;
#ifdef LOG
printf ("libmpeg2: decode_data...\n");
#endif
pthread_mutex_lock (&this->lock);
if (buf->decoder_flags & BUF_FLAG_PREVIEW) {
mpeg2_find_sequence_header (&this->mpeg2, buf->content, buf->content + buf->size);
} else {
mpeg2_decode_data (&this->mpeg2, buf->content, buf->content + buf->size,
buf->pts);
}
pthread_mutex_unlock (&this->lock);
#ifdef LOG
printf ("libmpeg2: decode_data...done\n");
#endif
}
static void mpeg2dec_flush (video_decoder_t *this_gen) {
mpeg2dec_decoder_t *this = (mpeg2dec_decoder_t *) this_gen;
pthread_mutex_lock (&this->lock);
printf ("libmpeg2: flush\n");
mpeg2_flush (&this->mpeg2);
pthread_mutex_unlock (&this->lock);
}
static void mpeg2dec_close (video_decoder_t *this_gen) {
mpeg2dec_decoder_t *this = (mpeg2dec_decoder_t *) this_gen;
#ifdef LOG
printf ("libmpeg2: close\n");
#endif
pthread_mutex_lock (&this->lock);
mpeg2_close (&this->mpeg2);
this->video_out->close(this->video_out);
pthread_mutex_unlock (&this->lock);
}
static char *mpeg2dec_get_id(void) {
return "mpeg2dec";
}
video_decoder_t *init_video_decoder_plugin (int iface_version, xine_t *xine) {
mpeg2dec_decoder_t *this ;
if (iface_version != 5) {
printf( "libmpeg2: plugin doesn't support plugin API version %d.\n"
"libmpeg2: this means there's a version mismatch between xine and this "
"libmpeg2: decoder plugin.\nInstalling current plugins should help.\n",
iface_version);
return NULL;
}
this = (mpeg2dec_decoder_t *) malloc (sizeof (mpeg2dec_decoder_t));
memset(this, 0, sizeof (mpeg2dec_decoder_t));
this->video_decoder.interface_version = iface_version;
this->video_decoder.can_handle = mpeg2dec_can_handle;
this->video_decoder.init = mpeg2dec_init;
this->video_decoder.decode_data = mpeg2dec_decode_data;
this->video_decoder.flush = mpeg2dec_flush;
this->video_decoder.close = mpeg2dec_close;
this->video_decoder.get_identifier = mpeg2dec_get_id;
this->video_decoder.priority = 1;
this->mpeg2.xine = xine;
pthread_mutex_init (&this->lock, NULL);
return (video_decoder_t *) this;
}
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