1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* Copyright (C) 2000-2002 the xine project
*
* This file is part of xine, a free video player.
*
* xine 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.
*
* xine 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
*
* $Id: post.c,v 1.2 2002/12/03 21:59:46 mroi Exp $
*/
/*
* some helper functions for post plugins
*/
#include "post.h"
/* dummy intercept functions that just pass the call on to the original port */
static uint32_t post_video_get_capabilities(xine_video_port_t *port_gen) {
post_video_port_t *port = (post_video_port_t *)port_gen;
return port->original_port->get_capabilities(port->original_port);
}
static void post_video_open(xine_video_port_t *port_gen, xine_stream_t *stream) {
post_video_port_t *port = (post_video_port_t *)port_gen;
port->original_port->open(port->original_port, stream);
}
static vo_frame_t *post_video_get_frame(xine_video_port_t *port_gen, uint32_t width,
uint32_t height, int ratio_code, int format, int flags) {
post_video_port_t *port = (post_video_port_t *)port_gen;
return port->original_port->get_frame(port->original_port,
width, height, ratio_code, format, flags);
}
static vo_frame_t *post_video_get_last_frame(xine_video_port_t *port_gen) {
post_video_port_t *port = (post_video_port_t *)port_gen;
return port->original_port->get_last_frame(port->original_port);
}
static void post_video_enable_ovl(xine_video_port_t *port_gen, int ovl_enable) {
post_video_port_t *port = (post_video_port_t *)port_gen;
port->original_port->enable_ovl(port->original_port, ovl_enable);
}
static void post_video_close(xine_video_port_t *port_gen, xine_stream_t *stream) {
post_video_port_t *port = (post_video_port_t *)port_gen;
port->original_port->close(port->original_port, stream);
}
static void post_video_exit(xine_video_port_t *port_gen) {
post_video_port_t *port = (post_video_port_t *)port_gen;
port->original_port->exit(port->original_port);
}
static video_overlay_instance_t *post_video_get_overlay_instance(xine_video_port_t *port_gen) {
post_video_port_t *port = (post_video_port_t *)port_gen;
return port->original_port->get_overlay_instance(port->original_port);
}
static void post_video_flush(xine_video_port_t *port_gen) {
post_video_port_t *port = (post_video_port_t *)port_gen;
port->original_port->flush(port->original_port);
}
post_video_port_t *post_intercept_video_port(xine_video_port_t *original) {
post_video_port_t *post_port = (post_video_port_t *)malloc(sizeof(post_video_port_t));
if (!post_port)
return NULL;
post_port->port.get_capabilities = post_video_get_capabilities;
post_port->port.open = post_video_open;
post_port->port.get_frame = post_video_get_frame;
post_port->port.get_last_frame = post_video_get_last_frame;
post_port->port.enable_ovl = post_video_enable_ovl;
post_port->port.close = post_video_close;
post_port->port.exit = post_video_exit;
post_port->port.get_overlay_instance = post_video_get_overlay_instance;
post_port->port.flush = post_video_flush;
post_port->port.driver = original->driver;
post_port->original_port = original;
return post_port;
}
/* dummy intercept functions for frames */
static void post_frame_free(vo_frame_t *vo_img) {
post_video_port_t *port = (post_video_port_t *)vo_img->port;
post_restore_video_frame(vo_img, port);
vo_img->free(vo_img);
}
static void post_frame_copy(vo_frame_t *vo_img, uint8_t **src) {
post_video_port_t *port = (post_video_port_t *)vo_img->port;
vo_img->port = port->original_port;
port->original_frame.copy(vo_img, src);
vo_img->port = &port->port;
}
static void post_frame_field(vo_frame_t *vo_img, int which_field) {
post_video_port_t *port = (post_video_port_t *)vo_img->port;
vo_img->port = port->original_port;
port->original_frame.field(vo_img, which_field);
vo_img->port = &port->port;
}
static int post_frame_draw(vo_frame_t *vo_img, xine_stream_t *stream) {
post_video_port_t *port = (post_video_port_t *)vo_img->port;
post_restore_video_frame(vo_img, port);
return vo_img->draw(vo_img, stream);
}
static void post_frame_displayed(vo_frame_t *vo_img) {
post_video_port_t *port = (post_video_port_t *)vo_img->port;
post_restore_video_frame(vo_img, port);
vo_img->displayed(vo_img);
}
static void post_frame_dispose(vo_frame_t *vo_img) {
post_video_port_t *port = (post_video_port_t *)vo_img->port;
post_restore_video_frame(vo_img, port);
vo_img->dispose(vo_img);
}
void post_intercept_video_frame(vo_frame_t *frame, post_video_port_t *port) {
port->original_frame.port = frame->port;
port->original_frame.free = frame->free;
port->original_frame.copy = frame->copy;
port->original_frame.field = frame->field;
port->original_frame.draw = frame->draw;
port->original_frame.displayed = frame->displayed;
port->original_frame.dispose = frame->dispose;
frame->port = &port->port;
frame->free = post_frame_free;
frame->copy = frame->copy ? post_frame_copy : NULL; /* this one can be NULL */
frame->field = post_frame_field;
frame->draw = post_frame_draw;
frame->displayed = post_frame_displayed;
frame->dispose = post_frame_dispose;
}
void post_restore_video_frame(vo_frame_t *frame, post_video_port_t *port) {
frame->port = port->original_port;
frame->free = port->original_frame.free;
frame->copy = port->original_frame.copy;
frame->field = port->original_frame.field;
frame->draw = port->original_frame.draw;
frame->displayed = port->original_frame.displayed;
frame->dispose = port->original_frame.dispose;
}
|
