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e9025573fa
As it is already written in the documentation, BMD DeckLink cards are capable of capturing 2, 8 or 16 audio channels (for SDI Inputs). Currently the value is hardcoded to 2. Introduces new option. Reviewed-by: Deti Fliegl <deti@fliegl.de> Signed-off-by: Matthias Hunstock <atze@fem.tu-ilmenau.de> Signed-off-by: Marton Balint <cus@passwd.hu>
60 lines
2.7 KiB
C
60 lines
2.7 KiB
C
/*
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* Blackmagic DeckLink output
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* Copyright (c) 2014 Deti Fliegl
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavformat/avformat.h"
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#include "libavutil/opt.h"
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#include "decklink_common_c.h"
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#include "decklink_dec.h"
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#define OFFSET(x) offsetof(struct decklink_cctx, x)
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#define DEC AV_OPT_FLAG_DECODING_PARAM
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static const AVOption options[] = {
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{ "list_devices", "list available devices" , OFFSET(list_devices), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
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{ "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
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{ "bm_v210", "v210 10 bit per channel" , OFFSET(v210), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
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{ "teletext_lines", "teletext lines bitmask", OFFSET(teletext_lines), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, 0x7ffffffffLL, DEC, "teletext_lines"},
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{ "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, "teletext_lines"},
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{ "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, "teletext_lines"},
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{ "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC },
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{ NULL },
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};
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static const AVClass decklink_demuxer_class = {
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.class_name = "Blackmagic DeckLink demuxer",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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.category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
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};
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AVInputFormat ff_decklink_demuxer = {
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.name = "decklink",
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.long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"),
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.flags = AVFMT_NOFILE | AVFMT_RAWPICTURE,
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.priv_class = &decklink_demuxer_class,
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.priv_data_size = sizeof(struct decklink_cctx),
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.read_header = ff_decklink_read_header,
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.read_packet = ff_decklink_read_packet,
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.read_close = ff_decklink_read_close,
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};
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