mpv/libvo/vo_null.c

/*
 * based on video_out_null.c from mpeg2dec
 *
 * Copyright (C) Aaron Holtzman - June 2000
 *
 * This file is part of MPlayer.
 *
 * MPlayer 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.
 *
 * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include "mp_msg.h"
#include "video_out.h"
#include "video_out_internal.h"

static const vo_info_t info =
{
	"Null video output",
	"null",
	"Aaron Holtzman <aholtzma@ess.engr.uvic.ca>",
	""
};

const LIBVO_EXTERN(null)

static uint32_t image_width, image_height;

//static uint32_t
static int draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y)
//draw_slice(uint8_t *src[], uint32_t slice_num)
{
	return 0;
}

static void draw_osd(void)
{
}

static void
flip_page(void)
{
}

static int
draw_frame(uint8_t *src[])
{
	return 0;
}

static int
query_format(uint32_t format)
{
    return VFCAP_CSP_SUPPORTED;
}

static int
config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
	image_width = width;
	image_height = height;
	return 0;
}

static void
uninit(void)
{
}


static void check_events(void)
{
}

static int preinit(const char *arg)
{
    if(arg)
    {
	mp_tmsg(MSGT_VO,MSGL_WARN, "[VO_NULL] Unknown subdevice: %s.\n",arg);
	return ENOSYS;
    }
    return 0;
}

static int control(uint32_t request, void *data)
{
  switch (request) {
  case VOCTRL_QUERY_FORMAT:
    return query_format(*((uint32_t*)data));
  }
  return VO_NOTIMPL;
}