vhook watermark patch by (Marcus Engene: ffmpeg, engene se)
[libav.git] / vhook / null.c
1 /*
2 * Null Video Hook
3 * Copyright (c) 2002 Philip Gladstone
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19 #include <stdio.h>
20
21 #include "framehook.h"
22
23 typedef struct {
24 int dummy;
25 } ContextInfo;
26
27 void Release(void *ctx)
28 {
29 ContextInfo *ci;
30 ci = (ContextInfo *) ctx;
31
32 if (ctx)
33 av_free(ctx);
34 }
35
36 int Configure(void **ctxp, int argc, char *argv[])
37 {
38 fprintf(stderr, "Called with argc=%d\n", argc);
39
40 *ctxp = av_mallocz(sizeof(ContextInfo));
41 return 0;
42 }
43
44 void Process(void *ctx, AVPicture *picture, enum PixelFormat pix_fmt, int width, int height, int64_t pts)
45 {
46 ContextInfo *ci = (ContextInfo *) ctx;
47 char *buf = 0;
48 AVPicture picture1;
49 AVPicture *pict = picture;
50
51 (void) ci;
52
53 if (pix_fmt != PIX_FMT_RGB24) {
54 int size;
55
56 size = avpicture_get_size(PIX_FMT_RGB24, width, height);
57 buf = av_malloc(size);
58
59 avpicture_fill(&picture1, buf, PIX_FMT_RGB24, width, height);
60 if (img_convert(&picture1, PIX_FMT_RGB24,
61 picture, pix_fmt, width, height) < 0) {
62 av_free(buf);
63 return;
64 }
65 pict = &picture1;
66 }
67
68 /* Insert filter code here */
69
70 if (pix_fmt != PIX_FMT_RGB24) {
71 if (img_convert(picture, pix_fmt,
72 &picture1, PIX_FMT_RGB24, width, height) < 0) {
73 }
74 }
75
76 av_free(buf);
77 }
78