2 * Blackmagic DeckLink output
3 * Copyright (c) 2014 Deti Fliegl
5 * This file is part of FFmpeg.
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.
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.
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
22 #include "libavformat/avformat.h"
23 #include "libavutil/opt.h"
25 #include "decklink_common_c.h"
26 #include "decklink_dec.h"
28 #define OFFSET(x) offsetof(struct decklink_cctx, x)
29 #define DEC AV_OPT_FLAG_DECODING_PARAM
31 static const AVOption options[] = {
32 { "list_devices", "list available devices" , OFFSET(list_devices), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
33 { "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
34 { "bm_v210", "v210 10 bit per channel" , OFFSET(v210), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
35 { "teletext_lines", "teletext lines bitmask", OFFSET(teletext_lines), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, 0x7ffffffffLL, DEC, "teletext_lines"},
36 { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, "teletext_lines"},
37 { "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, "teletext_lines"},
38 { "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC },
42 static const AVClass decklink_demuxer_class = {
43 .class_name = "Blackmagic DeckLink demuxer",
44 .item_name = av_default_item_name,
46 .version = LIBAVUTIL_VERSION_INT,
47 .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
50 AVInputFormat ff_decklink_demuxer = {
52 .long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"),
53 .flags = AVFMT_NOFILE | AVFMT_RAWPICTURE,
54 .priv_class = &decklink_demuxer_class,
55 .priv_data_size = sizeof(struct decklink_cctx),
56 .read_header = ff_decklink_read_header,
57 .read_packet = ff_decklink_read_packet,
58 .read_close = ff_decklink_read_close,