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/*
* video_out_null.c
* Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
* See http://libmpeg2.sourceforge.net/ for updates.
*
* mpeg2dec 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.
*
* mpeg2dec 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
*/
#include "config.h"
#include <stdlib.h>
#include <inttypes.h>
#include <mpeg2dec/mpeg2.h>
#include "video_out.h"
#include <mpeg2dec/mpeg2convert.h>
static void null_draw_frame (vo_instance_t * instance,
uint8_t * const * buf, void * id)
{
}
static vo_instance_t * internal_open (int setup (vo_instance_t *, unsigned int,
unsigned int, unsigned int,
unsigned int, unsigned int,
unsigned int,
vo_setup_result_t *),
void draw (vo_instance_t *,
uint8_t * const *, void *))
{
vo_instance_t * instance;
instance = (vo_instance_t *) calloc (1, sizeof (vo_instance_t));
if (instance == NULL)
return NULL;
instance->setup = setup;
instance->draw = draw;
instance->close = (void (*) (vo_instance_t *)) free;
return instance;
}
static int null_setup (vo_instance_t * instance,
unsigned int width, unsigned int height,
unsigned int display_width, unsigned int display_height,
unsigned int chroma_width,
unsigned int chroma_height, vo_setup_result_t * result)
{
result->convert = NULL;
return 0;
}
vo_instance_t * vo_null_open (void)
{
return internal_open (null_setup, null_draw_frame);
}
vo_instance_t * vo_nullskip_open (void)
{
return internal_open (null_setup, NULL);
}
static void nullslice_start (void * id, const mpeg2_fbuf_t * fbuf,
const mpeg2_picture_t * picture,
const mpeg2_gop_t * gop)
{
}
static void nullslice_copy (void * id, uint8_t * const * src,
unsigned int v_offset)
{
}
static int nullslice_convert (int stage, void * id,
const mpeg2_sequence_t * seq,
int stride, uint32_t accel, void * arg,
mpeg2_convert_init_t * result)
{
result->id_size = 0;
result->buf_size[0] = result->buf_size[1] = result->buf_size[2] = 0;
result->start = nullslice_start;
result->copy = nullslice_copy;
return 0;
}
static int nullslice_setup (vo_instance_t * instance,
unsigned int width,
unsigned int height,
unsigned int display_width,
unsigned int display_height,
unsigned int chroma_width,
unsigned int chroma_height,
vo_setup_result_t * result)
{
result->convert = nullslice_convert;
return 0;
}
vo_instance_t * vo_nullslice_open (void)
{
return internal_open (nullslice_setup, null_draw_frame);
}
static int nullrgb16_setup (vo_instance_t * instance,
unsigned int width,
unsigned int height,
unsigned int display_width,
unsigned int display_height,
unsigned int chroma_width,
unsigned int chroma_height,
vo_setup_result_t * result)
{
result->convert = mpeg2convert_rgb16;
return 0;
}
static int nullrgb32_setup (vo_instance_t * instance,
unsigned int width,
unsigned int height,
unsigned int display_width,
unsigned int display_height,
unsigned int chroma_width,
unsigned int chroma_height,
vo_setup_result_t * result)
{
result->convert = mpeg2convert_rgb32;
return 0;
}
vo_instance_t * vo_nullrgb16_open (void)
{
return internal_open (nullrgb16_setup, null_draw_frame);
}
vo_instance_t * vo_nullrgb32_open (void)
{
return internal_open (nullrgb32_setup, null_draw_frame);
}
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