/* * 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 "mpeg2.h"#include "video_out.h"#include "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,						 vo_setup_result_t *),				      void draw (vo_instance_t *,						 uint8_t * const *, void *)){    vo_instance_t * instance;    instance = (vo_instance_t *) malloc (sizeof (vo_instance_t));    if (instance == NULL)	return NULL;    instance->setup = setup;    instance->setup_fbuf = NULL;    instance->set_fbuf = NULL;    instance->start_fbuf = NULL;    instance->draw = draw;    instance->discard = NULL;    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 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 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 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 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);}