decklink_enc_c.c 3.1 KB

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  1. /*
  2. * Blackmagic DeckLink output
  3. * Copyright (c) 2013-2014 Ramiro Polla
  4. *
  5. * This file is part of FFmpeg.
  6. *
  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.
  11. *
  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.
  16. *
  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
  20. */
  21. #include "libavformat/avformat.h"
  22. #include "libavutil/opt.h"
  23. #include "decklink_common_c.h"
  24. #include "decklink_enc.h"
  25. #define OFFSET(x) offsetof(struct decklink_cctx, x)
  26. #define ENC AV_OPT_FLAG_ENCODING_PARAM
  27. static const AVOption options[] = {
  28. { "list_devices", "list available devices" , OFFSET(list_devices), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, ENC },
  29. { "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, ENC },
  30. { "preroll" , "video preroll in seconds", OFFSET(preroll ), AV_OPT_TYPE_DOUBLE, { .dbl = 0.5 }, 0, 5, ENC },
  31. { "duplex_mode" , "duplex mode" , OFFSET(duplex_mode ), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 2, ENC, "duplex_mode"},
  32. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "duplex_mode"},
  33. { "half" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "duplex_mode"},
  34. { "full" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 2 }, 0, 0, ENC, "duplex_mode"},
  35. { "timing_offset", "genlock timing pixel offset", OFFSET(timing_offset), AV_OPT_TYPE_INT, { .i64 = INT_MIN }, INT_MIN, INT_MAX, ENC, "timing_offset"},
  36. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST, { .i64 = INT_MIN }, 0, 0, ENC, "timing_offset"},
  37. { NULL },
  38. };
  39. static const AVClass decklink_muxer_class = {
  40. .class_name = "Blackmagic DeckLink outdev",
  41. .item_name = av_default_item_name,
  42. .option = options,
  43. .version = LIBAVUTIL_VERSION_INT,
  44. .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
  45. };
  46. AVOutputFormat ff_decklink_muxer = {
  47. .name = "decklink",
  48. .long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink output"),
  49. .audio_codec = AV_CODEC_ID_PCM_S16LE,
  50. .video_codec = AV_CODEC_ID_WRAPPED_AVFRAME,
  51. .subtitle_codec = AV_CODEC_ID_NONE,
  52. .flags = AVFMT_NOFILE,
  53. .get_device_list = ff_decklink_list_output_devices,
  54. .priv_class = &decklink_muxer_class,
  55. .priv_data_size = sizeof(struct decklink_cctx),
  56. .write_header = ff_decklink_write_header,
  57. .write_packet = ff_decklink_write_packet,
  58. .write_trailer = ff_decklink_write_trailer,
  59. };