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 { "teletext_lines", "teletext lines bitmask", OFFSET(teletext_lines), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, 0x7ffffffffLL, DEC, "teletext_lines"}, 43 { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, "teletext_lines"}, 44 { "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, "teletext_lines"}, 45 { "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC }, 46 { "duplex_mode", "duplex mode", OFFSET(duplex_mode), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, DEC, "duplex_mode"}, 47 { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "duplex_mode"}, 48 { "half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "duplex_mode"}, 49 { "full", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "duplex_mode"}, 50 { "timecode_format", "timecode format", OFFSET(tc_format), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 7, DEC, "tc_format"}, 51 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "tc_format"}, 52 { "rp188vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "tc_format"}, 53 { "rp188vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "tc_format"}, 54 { "rp188ltc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "tc_format"}, 55 { "rp188any", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "tc_format"}, 56 { "vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "tc_format"}, 57 { "vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "tc_format"}, 58 { "serial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 7}, 0, 0, DEC, "tc_format"}, 59 { "video_input", "video input", OFFSET(video_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, "video_input"}, 60 { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "video_input"}, 61 { "sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "video_input"}, 62 { "hdmi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "video_input"}, 63 { "optical_sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "video_input"}, 64 { "component", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "video_input"}, 65 { "composite", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "video_input"}, 66 { "s_video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "video_input"}, 67 { "audio_input", "audio input", OFFSET(audio_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, "audio_input"}, 68 { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "audio_input"}, 69 { "embedded", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "audio_input"}, 70 { "aes_ebu", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "audio_input"}, 71 { "analog", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "audio_input"}, 72 { "analog_xlr", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "audio_input"}, 73 { "analog_rca", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "audio_input"}, 74 { "microphone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "audio_input"}, 75 { "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"}, 76 { "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"}, 77 { "audio", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_AUDIO }, 0, 0, DEC, "pts_source"}, 78 { "video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_VIDEO }, 0, 0, DEC, "pts_source"}, 79 { "reference", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_REFERENCE}, 0, 0, DEC, "pts_source"}, 80 { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_WALLCLOCK}, 0, 0, DEC, "pts_source"}, 81 { "abs_wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_ABS_WALLCLOCK}, 0, 0, DEC, "pts_source"}, 82 { "draw_bars", "draw bars on signal loss" , OFFSET(draw_bars), AV_OPT_TYPE_BOOL, { .i64 = 1}, 0, 1, DEC }, 83 { "queue_size", "input queue buffer size", OFFSET(queue_size), AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024 * 1024)}, 0, INT64_MAX, DEC }, 84 { "audio_depth", "audio bitdepth (16 or 32)", OFFSET(audio_depth), AV_OPT_TYPE_INT, { .i64 = 16}, 16, 32, DEC }, 85 { "decklink_copyts", "copy timestamps, do not remove the initial offset", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC }, 86 { "timestamp_align", "capture start time alignment (in seconds)", OFFSET(timestamp_align), AV_OPT_TYPE_DURATION, { .i64 = 0 }, 0, INT_MAX, DEC }, 87 { "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 }, 88 { NULL }, 89 }; 90 91 static const AVClass decklink_demuxer_class = { 92 .class_name = "Blackmagic DeckLink indev", 93 .item_name = av_default_item_name, 94 .option = options, 95 .version = LIBAVUTIL_VERSION_INT, 96 .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT, 97 }; 98 99 AVInputFormat ff_decklink_demuxer = { 100 .name = "decklink", 101 .long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"), 102 .flags = AVFMT_NOFILE, 103 .priv_class = &decklink_demuxer_class, 104 .priv_data_size = sizeof(struct decklink_cctx), 105 .get_device_list = ff_decklink_list_input_devices, 106 .read_header = ff_decklink_read_header, 107 .read_packet = ff_decklink_read_packet, 108 .read_close = ff_decklink_read_close, 109 }; 110