FFmpeg
decklink_dec_c.c
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1 /*
2  * Blackmagic DeckLink input
3  * Copyright (c) 2014 Deti Fliegl
4  * Copyright (c) 2017 Akamai Technologies, Inc.
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "libavformat/avformat.h"
24 #include "libavutil/opt.h"
25 
26 #include "decklink_common_c.h"
27 #include "decklink_dec.h"
28 
29 #define OFFSET(x) offsetof(struct decklink_cctx, x)
30 #define DEC AV_OPT_FLAG_DECODING_PARAM
31 
32 static const AVOption options[] = {
33  { "list_devices", "list available devices" , OFFSET(list_devices), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
34  { "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
35  { "format_code", "set format by fourcc" , OFFSET(format_code), AV_OPT_TYPE_STRING, { .str = NULL}, 0, 0, DEC },
36  { "raw_format", "pixel format to be returned by the card when capturing" , OFFSET(raw_format), AV_OPT_TYPE_INT, { .i64 = MKBETAG('2','v','u','y')}, 0, UINT_MAX, DEC, "raw_format" },
37  { "uyvy422", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('2','v','u','y') }, 0, 0, DEC, "raw_format"},
38  { "yuv422p10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('v','2','1','0') }, 0, 0, DEC, "raw_format"},
39  { "argb", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, 0, 0, DEC, "raw_format"},
40  { "bgra", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('B','G','R','A') }, 0, 0, DEC, "raw_format"},
41  { "rgb10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('r','2','1','0') }, 0, 0, DEC, "raw_format"},
42  { "enable_klv", "output klv if present in vanc", OFFSET(enable_klv), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
43  { "teletext_lines", "teletext lines bitmask", OFFSET(teletext_lines), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, 0x7ffffffffLL, DEC, "teletext_lines"},
44  { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, "teletext_lines"},
45  { "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, "teletext_lines"},
46  { "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC },
47  { "duplex_mode", "duplex mode", OFFSET(duplex_mode), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, DEC, "duplex_mode"},
48  { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "duplex_mode"},
49  { "half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "duplex_mode"},
50  { "full", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "duplex_mode"},
51  { "timecode_format", "timecode format", OFFSET(tc_format), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 7, DEC, "tc_format"},
52  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "tc_format"},
53  { "rp188vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "tc_format"},
54  { "rp188vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "tc_format"},
55  { "rp188ltc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "tc_format"},
56  { "rp188any", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "tc_format"},
57  { "vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "tc_format"},
58  { "vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "tc_format"},
59  { "serial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 7}, 0, 0, DEC, "tc_format"},
60  { "video_input", "video input", OFFSET(video_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, "video_input"},
61  { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "video_input"},
62  { "sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "video_input"},
63  { "hdmi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "video_input"},
64  { "optical_sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "video_input"},
65  { "component", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "video_input"},
66  { "composite", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "video_input"},
67  { "s_video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "video_input"},
68  { "audio_input", "audio input", OFFSET(audio_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, "audio_input"},
69  { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "audio_input"},
70  { "embedded", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "audio_input"},
71  { "aes_ebu", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "audio_input"},
72  { "analog", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "audio_input"},
73  { "analog_xlr", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "audio_input"},
74  { "analog_rca", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "audio_input"},
75  { "microphone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "audio_input"},
76  { "audio_pts", "audio pts source", OFFSET(audio_pts_source), AV_OPT_TYPE_INT, { .i64 = PTS_SRC_AUDIO }, 1, PTS_SRC_NB-1, DEC, "pts_source"},
77  { "video_pts", "video pts source", OFFSET(video_pts_source), AV_OPT_TYPE_INT, { .i64 = PTS_SRC_VIDEO }, 1, PTS_SRC_NB-1, DEC, "pts_source"},
78  { "audio", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_AUDIO }, 0, 0, DEC, "pts_source"},
79  { "video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_VIDEO }, 0, 0, DEC, "pts_source"},
80  { "reference", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_REFERENCE}, 0, 0, DEC, "pts_source"},
81  { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_WALLCLOCK}, 0, 0, DEC, "pts_source"},
82  { "abs_wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_ABS_WALLCLOCK}, 0, 0, DEC, "pts_source"},
83  { "draw_bars", "draw bars on signal loss" , OFFSET(draw_bars), AV_OPT_TYPE_BOOL, { .i64 = 1}, 0, 1, DEC },
84  { "queue_size", "input queue buffer size", OFFSET(queue_size), AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024 * 1024)}, 0, INT64_MAX, DEC },
85  { "audio_depth", "audio bitdepth (16 or 32)", OFFSET(audio_depth), AV_OPT_TYPE_INT, { .i64 = 16}, 16, 32, DEC },
86  { "decklink_copyts", "copy timestamps, do not remove the initial offset", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
87  { "timestamp_align", "capture start time alignment (in seconds)", OFFSET(timestamp_align), AV_OPT_TYPE_DURATION, { .i64 = 0 }, 0, INT_MAX, DEC },
88  { "wait_for_tc", "drop frames till a frame with timecode is received. TC format must be set", OFFSET(wait_for_tc), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
89  { NULL },
90 };
91 
93  .class_name = "Blackmagic DeckLink indev",
94  .item_name = av_default_item_name,
95  .option = options,
96  .version = LIBAVUTIL_VERSION_INT,
98 };
99 
101  .name = "decklink",
102  .long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"),
103  .flags = AVFMT_NOFILE,
104  .priv_class = &decklink_demuxer_class,
105  .priv_data_size = sizeof(struct decklink_cctx),
106  .get_device_list = ff_decklink_list_input_devices,
107  .read_header = ff_decklink_read_header,
108  .read_packet = ff_decklink_read_packet,
109  .read_close = ff_decklink_read_close,
110 };
#define NULL
Definition: coverity.c:32
AVOption.
Definition: opt.h:248
int audio_channels
Definition: rtp.c:40
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
static void list_formats(AVFormatContext *ctx, int type)
Definition: v4l2.c:275
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
AVOptions.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:153
Describe the class of an AVClass context structure.
Definition: log.h:67
Main libavformat public API header.
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:458
#define MKBETAG(a, b, c, d)
Definition: common.h:407
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:650