/
githubmirror
/
FFmpeg
Обзор
Документация
Войти
/
githubmirror
/
FFmpeg
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
libavdevice/decklink_dec_c.c
129 строк
11 KB
Michael Riedl
avdevice/decklink_dec: extend available actions on signal loss
10 сен 2024, 00:47
10 сен 2024, 00:47
9bcb86b
Код
Авторство
О чём код?
/* * Blackmagic DeckLink input * Copyright (c) 2014 Deti Fliegl * Copyright (c) 2017 Akamai Technologies, Inc. * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavformat/avformat.h" #include "libavformat/demux.h" #include "libavutil/opt.h" #include "decklink_common_c.h" #include "decklink_dec.h" #define OFFSET(x) offsetof(struct decklink_cctx, x) #define DEC AV_OPT_FLAG_DECODING_PARAM static const AVOption options[] = { { "list_devices", "use ffmpeg -sources decklink instead", OFFSET(list_devices), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC | AV_OPT_FLAG_DEPRECATED}, { "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC }, { "format_code", "set format by fourcc" , OFFSET(format_code), AV_OPT_TYPE_STRING, { .str = NULL}, 0, 0, DEC }, { "raw_format", "pixel format to be returned by the card when capturing" , OFFSET(raw_format), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 5, DEC, .unit = "raw_format" }, { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, DEC, .unit = "raw_format"}, { "uyvy422", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, DEC, .unit = "raw_format"}, { "yuv422p10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, DEC, .unit = "raw_format"}, { "argb", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3 }, 0, 0, DEC, .unit = "raw_format"}, { "bgra", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4 }, 0, 0, DEC, .unit = "raw_format"}, { "rgb10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5 }, 0, 0, DEC, .unit = "raw_format"}, { "enable_klv", "output klv if present in vanc", OFFSET(enable_klv), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC }, { "teletext_lines", "teletext lines bitmask", OFFSET(teletext_lines), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, 0x7ffffffffLL, DEC, .unit = "teletext_lines"}, { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, .unit = "teletext_lines"}, { "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, .unit = "teletext_lines"}, { "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC }, #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000 { "duplex_mode", "duplex mode", OFFSET(duplex_mode), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 5, DEC, .unit = "duplex_mode"}, #else { "duplex_mode", "duplex mode", OFFSET(duplex_mode), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, DEC, .unit = "duplex_mode"}, #endif { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, .unit = "duplex_mode"}, { "half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, .unit = "duplex_mode"}, { "full", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, .unit = "duplex_mode"}, #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000 { "one_sub_device_full", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, .unit = "duplex_mode"}, { "one_sub_device_half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, .unit = "duplex_mode"}, { "two_sub_device_full", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, .unit = "duplex_mode"}, { "four_sub_device_half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, .unit = "duplex_mode"}, #endif { "timecode_format", "timecode format", OFFSET(tc_format), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 8, DEC, .unit = "tc_format"}, { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, .unit = "tc_format"}, { "rp188vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, .unit = "tc_format"}, { "rp188vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, .unit = "tc_format"}, { "rp188ltc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, .unit = "tc_format"}, { "rp188any", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, .unit = "tc_format"}, { "vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, .unit = "tc_format"}, { "vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, .unit = "tc_format"}, { "serial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 7}, 0, 0, DEC, .unit = "tc_format"}, #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000 { "rp188hfr", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 8}, 0, 0, DEC, .unit = "tc_format"}, #endif { "video_input", "video input", OFFSET(video_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, .unit = "video_input"}, { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, .unit = "video_input"}, { "sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, .unit = "video_input"}, { "hdmi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, .unit = "video_input"}, { "optical_sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, .unit = "video_input"}, { "component", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, .unit = "video_input"}, { "composite", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, .unit = "video_input"}, { "s_video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, .unit = "video_input"}, { "audio_input", "audio input", OFFSET(audio_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, .unit = "audio_input"}, { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, .unit = "audio_input"}, { "embedded", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, .unit = "audio_input"}, { "aes_ebu", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, .unit = "audio_input"}, { "analog", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, .unit = "audio_input"}, { "analog_xlr", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, .unit = "audio_input"}, { "analog_rca", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, .unit = "audio_input"}, { "microphone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, .unit = "audio_input"}, { "audio_pts", "audio pts source", OFFSET(audio_pts_source), AV_OPT_TYPE_INT, { .i64 = PTS_SRC_AUDIO }, 1, PTS_SRC_NB-1, DEC, .unit = "pts_source"}, { "video_pts", "video pts source", OFFSET(video_pts_source), AV_OPT_TYPE_INT, { .i64 = PTS_SRC_VIDEO }, 1, PTS_SRC_NB-1, DEC, .unit = "pts_source"}, { "audio", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_AUDIO }, 0, 0, DEC, .unit = "pts_source"}, { "video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_VIDEO }, 0, 0, DEC, .unit = "pts_source"}, { "reference", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_REFERENCE}, 0, 0, DEC, .unit = "pts_source"}, { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_WALLCLOCK}, 0, 0, DEC, .unit = "pts_source"}, { "abs_wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_ABS_WALLCLOCK}, 0, 0, DEC, .unit = "pts_source"}, { "draw_bars", "use option signal_loss_action instead" , OFFSET(draw_bars), AV_OPT_TYPE_BOOL, { .i64 = 1}, 0, 1, DEC | AV_OPT_FLAG_DEPRECATED }, { "queue_size", "input queue buffer size", OFFSET(queue_size), AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024 * 1024)}, 0, INT64_MAX, DEC }, { "audio_depth", "audio bitdepth (16 or 32)", OFFSET(audio_depth), AV_OPT_TYPE_INT, { .i64 = 16}, 16, 32, DEC }, { "decklink_copyts", "copy timestamps, do not remove the initial offset", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC }, { "timestamp_align", "capture start time alignment (in seconds)", OFFSET(timestamp_align), AV_OPT_TYPE_DURATION, { .i64 = 0 }, 0, INT_MAX, DEC }, { "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 }, { "signal_loss_action", "action on signal loss", OFFSET(signal_loss_action), AV_OPT_TYPE_INT, { .i64 = SIGNAL_LOSS_BARS }, SIGNAL_LOSS_NONE, SIGNAL_LOSS_BARS, DEC, .unit = "signal_loss_action" }, { "none", "do not do anything (usually leads to black frames)", 0, AV_OPT_TYPE_CONST, { .i64 = SIGNAL_LOSS_NONE }, 0, 0, DEC, .unit = "signal_loss_action"}, { "bars", "draw color bars (only supported for 8-bit signals)", 0, AV_OPT_TYPE_CONST, { .i64 = SIGNAL_LOSS_BARS }, 0, 0, DEC, .unit = "signal_loss_action"}, { "repeat", "repeat the last video frame", 0, AV_OPT_TYPE_CONST, { .i64 = SIGNAL_LOSS_REPEAT }, 0, 0, DEC, .unit = "signal_loss_action"}, { NULL }, }; static const AVClass decklink_demuxer_class = { .class_name = "Blackmagic DeckLink indev", .item_name = av_default_item_name, .option = options, .version = LIBAVUTIL_VERSION_INT, .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT, }; const FFInputFormat ff_decklink_demuxer = { .p.name = "decklink", .p.long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"), .p.flags = AVFMT_NOFILE, .p.priv_class = &decklink_demuxer_class, .priv_data_size = sizeof(struct decklink_cctx), .get_device_list = ff_decklink_list_input_devices, .read_header = ff_decklink_read_header, .read_packet = ff_decklink_read_packet, .read_close = ff_decklink_read_close, };