1 /*****************************************************************
2 * gavl - a general purpose audio/video processing library
3 *
4 * Copyright (c) 2001 - 2011 Members of the Gmerlin project
5 * gmerlin-general@lists.sourceforge.net
6 * http://gmerlin.sourceforge.net
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * *****************************************************************/
21
22 #include <string.h>
23 #include <stdlib.h>
24 #include <stdio.h>
25 #include <math.h>
26
27 #include <gavl/gavl.h>
28 #include <video.h>
29
30 #include <deinterlace.h>
31 #include <accel.h>
32
gavl_video_deinterlacer_create()33 gavl_video_deinterlacer_t * gavl_video_deinterlacer_create()
34 {
35 gavl_video_deinterlacer_t * ret;
36 ret = calloc(1, sizeof(*ret));
37 gavl_video_options_set_defaults(&ret->opt);
38
39 ret->src_field = gavl_video_frame_create(NULL);
40 ret->dst_field = gavl_video_frame_create(NULL);
41 return ret;
42 }
43
gavl_video_deinterlacer_destroy(gavl_video_deinterlacer_t * d)44 void gavl_video_deinterlacer_destroy(gavl_video_deinterlacer_t * d)
45 {
46 gavl_video_frame_destroy(d->src_field);
47 gavl_video_frame_destroy(d->dst_field);
48
49 if(d->scaler)
50 gavl_video_scaler_destroy(d->scaler);
51
52 free(d);
53 }
54
55 gavl_video_options_t *
gavl_video_deinterlacer_get_options(gavl_video_deinterlacer_t * d)56 gavl_video_deinterlacer_get_options(gavl_video_deinterlacer_t * d)
57 {
58 return &d->opt;
59 }
60
61
gavl_video_deinterlacer_init(gavl_video_deinterlacer_t * d,const gavl_video_format_t * src_format)62 int gavl_video_deinterlacer_init(gavl_video_deinterlacer_t * d,
63 const gavl_video_format_t * src_format)
64 {
65
66 gavl_video_format_copy(&d->format, src_format);
67 gavl_video_format_copy(&d->half_height_format, src_format);
68
69 if((d->format.interlace_mode == GAVL_INTERLACE_MIXED) ||
70 (d->format.interlace_mode == GAVL_INTERLACE_MIXED_TOP) ||
71 (d->format.interlace_mode == GAVL_INTERLACE_MIXED_BOTTOM))
72 d->mixed = 1;
73 else
74 d->mixed = 0;
75
76 d->half_height_format.image_height /= 2;
77 d->half_height_format.frame_height /= 2;
78
79 d->num_planes = gavl_pixelformat_num_planes(d->format.pixelformat);
80 gavl_pixelformat_chroma_sub(d->format.pixelformat, &d->sub_h, &d->sub_v);
81
82 switch(d->opt.deinterlace_mode)
83 {
84 case GAVL_DEINTERLACE_NONE:
85 break;
86 case GAVL_DEINTERLACE_COPY:
87 gavl_deinterlacer_init_copy(d);
88 break;
89 case GAVL_DEINTERLACE_SCALE:
90 gavl_deinterlacer_init_scale(d);
91 break;
92 case GAVL_DEINTERLACE_BLEND:
93 if(!gavl_deinterlacer_init_blend(d))
94 return 0;
95 break;
96 }
97 return 1;
98 }
99
gavl_video_deinterlacer_deinterlace(gavl_video_deinterlacer_t * d,const gavl_video_frame_t * input_frame,gavl_video_frame_t * output_frame)100 void gavl_video_deinterlacer_deinterlace(gavl_video_deinterlacer_t * d,
101 const gavl_video_frame_t * input_frame,
102 gavl_video_frame_t * output_frame)
103 {
104 if(d->mixed)
105 {
106 if((input_frame->interlace_mode != GAVL_INTERLACE_NONE) ||
107 (d->opt.conversion_flags & GAVL_FORCE_DEINTERLACE))
108 d->func(d, input_frame, output_frame);
109 else
110 gavl_video_frame_copy(&d->format, output_frame, input_frame);
111 }
112 else
113 d->func(d, input_frame, output_frame);
114 }
115
116