1 /*
2 * BRender PIX image demuxer
3 * Copyright (c) 2014 Michael Niedermayer
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 #include "img2.h"
23 #include "libavutil/intreadwrite.h"
24
brender_read_probe(const AVProbeData * p)25 static int brender_read_probe(const AVProbeData *p)
26 {
27 static const uint8_t brender_magic[16] = {
28 0,0,0,0x12,0,0,0,8,0,0,0,2,0,0,0,2
29 };
30
31 if (memcmp(p->buf, brender_magic, sizeof(brender_magic)))
32 return 0;
33
34 if (AV_RB32(p->buf+16) != 0x03 &&
35 AV_RB32(p->buf+16) != 0x3D)
36 return 0;
37
38 return AVPROBE_SCORE_MAX-10;
39 }
40
41 static const AVClass image2_brender_pix_class = {
42 .class_name = "brender_pix demuxer",
43 .item_name = av_default_item_name,
44 .option = ff_img_options,
45 .version = LIBAVUTIL_VERSION_INT,
46 };
47
48 AVInputFormat ff_image2_brender_pix_demuxer = {
49 .name = "brender_pix",
50 .long_name = NULL_IF_CONFIG_SMALL("BRender PIX image"),
51 .priv_data_size = sizeof(VideoDemuxData),
52 .read_probe = brender_read_probe,
53 .read_header = ff_img_read_header,
54 .read_packet = ff_img_read_packet,
55 .raw_codec_id = AV_CODEC_ID_BRENDER_PIX,
56 .priv_class = &image2_brender_pix_class,
57 };
58