decklink_enc_c.c 5.8 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 "libavformat/mux.h"
  23. #include "libavutil/opt.h"
  24. #include "decklink_common_c.h"
  25. #include "decklink_enc.h"
  26. #define OFFSET(x) offsetof(struct decklink_cctx, x)
  27. #define ENC AV_OPT_FLAG_ENCODING_PARAM
  28. static const AVOption options[] = {
  29. { "list_devices", "use ffmpeg -sinks decklink instead", OFFSET(list_devices), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC | AV_OPT_FLAG_DEPRECATED},
  30. { "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, ENC },
  31. { "preroll" , "video preroll in seconds", OFFSET(preroll ), AV_OPT_TYPE_DOUBLE, { .dbl = 0.5 }, 0, 5, ENC },
  32. { "vanc_queue_size", "VANC queue buffer size", OFFSET(vanc_queue_size), AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024)}, 0, INT64_MAX, ENC },
  33. #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
  34. { "duplex_mode" , "duplex mode" , OFFSET(duplex_mode ), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 5, ENC, "duplex_mode"},
  35. #else
  36. { "duplex_mode" , "duplex mode" , OFFSET(duplex_mode ), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 2, ENC, "duplex_mode"},
  37. #endif
  38. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "duplex_mode"},
  39. { "half" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "duplex_mode"},
  40. { "full" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 2 }, 0, 0, ENC, "duplex_mode"},
  41. #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
  42. { "one_sub_device_full", NULL ,0 , AV_OPT_TYPE_CONST , { .i64 = 2 }, 0, 0, ENC, "duplex_mode"},
  43. { "one_sub_device_half", NULL ,0 , AV_OPT_TYPE_CONST , { .i64 = 3 }, 0, 0, ENC, "duplex_mode"},
  44. { "two_sub_device_full", NULL ,0 , AV_OPT_TYPE_CONST , { .i64 = 4 }, 0, 0, ENC, "duplex_mode"},
  45. { "four_sub_device_half", NULL ,0 , AV_OPT_TYPE_CONST , { .i64 = 5 }, 0, 0, ENC, "duplex_mode"},
  46. #endif
  47. { "link" , "single/dual/quad SDI link configuration", OFFSET(link), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, ENC, "link"},
  48. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "link"},
  49. { "single" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "link"},
  50. { "dual" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 2 }, 0, 0, ENC, "link"},
  51. { "quad" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 3 }, 0, 0, ENC, "link"},
  52. { "sqd" , "set Square Division" , OFFSET(sqd) , AV_OPT_TYPE_INT, { .i64 = -1 }, -1,1, ENC, "sqd"},
  53. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = -1 }, 0, 0, ENC, "sqd"},
  54. { "false" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "sqd"},
  55. { "true" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "sqd"},
  56. { "level_a" , "set SMPTE LevelA" , OFFSET(level_a) , AV_OPT_TYPE_INT, { .i64 = -1 }, -1,1, ENC, "level_a"},
  57. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = -1 }, 0, 0, ENC, "level_a"},
  58. { "false" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "level_a"},
  59. { "true" , NULL , 0 , AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "level_a"},
  60. { "timing_offset", "genlock timing pixel offset", OFFSET(timing_offset), AV_OPT_TYPE_INT, { .i64 = INT_MIN }, INT_MIN, INT_MAX, ENC, "timing_offset"},
  61. { "unset" , NULL , 0 , AV_OPT_TYPE_CONST, { .i64 = INT_MIN }, 0, 0, ENC, "timing_offset"},
  62. { NULL },
  63. };
  64. static const AVClass decklink_muxer_class = {
  65. .class_name = "Blackmagic DeckLink outdev",
  66. .item_name = av_default_item_name,
  67. .option = options,
  68. .version = LIBAVUTIL_VERSION_INT,
  69. .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
  70. };
  71. const FFOutputFormat ff_decklink_muxer = {
  72. .p.name = "decklink",
  73. .p.long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink output"),
  74. .p.audio_codec = AV_CODEC_ID_PCM_S16LE,
  75. .p.video_codec = AV_CODEC_ID_WRAPPED_AVFRAME,
  76. .p.subtitle_codec = AV_CODEC_ID_EIA_608,
  77. .p.flags = AVFMT_NOFILE,
  78. .p.priv_class = &decklink_muxer_class,
  79. .get_device_list = ff_decklink_list_output_devices,
  80. .priv_data_size = sizeof(struct decklink_cctx),
  81. .write_header = ff_decklink_write_header,
  82. .write_packet = ff_decklink_write_packet,
  83. .write_trailer = ff_decklink_write_trailer,
  84. };