1 /*
2 * WebP encoding support via libwebp
3 * Copyright (c) 2013 Justin Ruggles <justin.ruggles@gmail.com>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * WebP encoder using libwebp (WebPEncode API)
25 */
26
30
32
34 {
36 }
37
40 {
42 WebPPicture *pic =
NULL;
44 WebPMemoryWriter mw = { 0 };
45
48 goto end;
49
50 WebPMemoryWriterInit(&mw);
51 pic->custom_ptr = &mw;
52 pic->writer = WebPMemoryWrite;
53
54 ret = WebPEncode(&
s->config, pic);
57 pic->error_code);
59 goto end;
60 }
61
64 goto end;
65 memcpy(
pkt->
data, mw.mem, mw.size);
66
67 *got_packet = 1;
68
69 end:
70 #if (WEBP_ENCODER_ABI_VERSION > 0x0203)
71 WebPMemoryWriterClear(&mw);
72 #else
73 free(mw.mem); /* must use free() according to libwebp documentation */
74 #endif
75 WebPPictureFree(pic);
78
80 }
81
83 {
86
87 return 0;
88 }
89
98 .p.wrapper_name = "libwebp",
104 };