diff options
Diffstat (limited to 'libvo/video_out_null.c')
| -rw-r--r-- | libvo/video_out_null.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/libvo/video_out_null.c b/libvo/video_out_null.c new file mode 100644 index 0000000..eb2608f --- /dev/null +++ b/libvo/video_out_null.c @@ -0,0 +1,144 @@ +/* + * 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 "vo_internal.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); +} |