/* 
 * 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: video_decoder.c,v 1.5 2001/04/23 00:34:59 guenter Exp $
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "xine_internal.h"

void *video_decoder_loop (void *this_gen) {

  buf_element_t   *buf;
  xine_t          *this = (xine_t *) this_gen;
  int              running = 1;
  video_decoder_t *decoder;

  while (running) {

    buf = this->video_fifo->get (this->video_fifo);

    /* gVD.mnCurInputPos = pBuf->nInputPos; */

    switch (buf->type) {
    case BUF_CONTROL_START:
      if (this->video_cur_decoder) {
	this->video_cur_decoder->close (this->video_cur_decoder);
	this->video_cur_decoder = NULL;
      }

      pthread_mutex_lock (&this->xine_lock);
      this->video_finished = 0;
      pthread_mutex_unlock (&this->xine_lock);

      break;

    case BUF_VIDEO_MPEG:
    case BUF_VIDEO_AVI:
      
      decoder = this->video_decoders [(buf->type>>16) & 0xFF];

      if (decoder) {
	if (this->video_cur_decoder != decoder) {

	  if (this->video_cur_decoder) 
	    this->video_cur_decoder->close (this->video_cur_decoder);

	  this->video_cur_decoder = decoder;
	  this->video_cur_decoder->init (this->video_cur_decoder, this->video_out);

	}
	
	decoder->decode_data (this->video_cur_decoder, buf);
      }

      break;

    case BUF_CONTROL_END:
      if (this->video_cur_decoder) {
	this->video_cur_decoder->close (this->video_cur_decoder);
	this->video_cur_decoder = NULL;
      }

      pthread_mutex_lock (&this->xine_lock);

      this->video_finished = 1;
      
      if (this->audio_finished) {
	pthread_mutex_unlock (&this->xine_lock);
	xine_notify_stream_finished (this);
      } else
	pthread_mutex_unlock (&this->xine_lock);

      break;

    case BUF_CONTROL_QUIT:
      if (this->video_cur_decoder) {
	this->video_cur_decoder->close (this->video_cur_decoder);
	this->video_cur_decoder = NULL;
      }
      running = 0;
      break;

    }

    buf->free_buffer (buf);
  }

  return NULL;
}

void video_decoder_init (xine_t *this) {

  int i;
  
  this->video_cur_decoder = NULL;
  for (i=0; i<DECODER_PLUGIN_MAX; i++)
    this->video_decoders[i] = NULL;

  /* FIXME: load video decoder plugins
  this->video_decoders[0x00] = init_video_decoder_mpeg2dec ();
  this->video_decoders[0x03] = init_video_decoder_avi ();
  */

  this->video_fifo = fifo_buffer_new ();

  pthread_create (&this->video_thread, NULL, video_decoder_loop, this) ;

  printf ("video_decoder_init: video thread created\n");
}

void video_decoder_shutdown (xine_t *this) {

  buf_element_t *buf;
  void          *p;

  this->video_fifo->clear(this->video_fifo);

  buf = this->video_fifo->buffer_pool_alloc ();
  buf->type = BUF_CONTROL_QUIT;
  this->video_fifo->put (this->video_fifo, buf);

  pthread_join (this->video_thread, &p);
}