decklink_dec_c.c 9.2 KB

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  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. #include "libavformat/avformat.h"
  23. #include "libavutil/opt.h"
  24. #include "decklink_common_c.h"
  25. #include "decklink_dec.h"
  26. #define OFFSET(x) offsetof(struct decklink_cctx, x)
  27. #define DEC AV_OPT_FLAG_DECODING_PARAM
  28. static const AVOption options[] = {
  29. { "list_devices", "list available devices" , OFFSET(list_devices), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
  30. { "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
  31. { "format_code", "set format by fourcc" , OFFSET(format_code), AV_OPT_TYPE_STRING, { .str = NULL}, 0, 0, DEC },
  32. { "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" },
  33. { "uyvy422", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('2','v','u','y') }, 0, 0, DEC, "raw_format"},
  34. { "yuv422p10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('v','2','1','0') }, 0, 0, DEC, "raw_format"},
  35. { "argb", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, 0, 0, DEC, "raw_format"},
  36. { "bgra", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('B','G','R','A') }, 0, 0, DEC, "raw_format"},
  37. { "rgb10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('r','2','1','0') }, 0, 0, DEC, "raw_format"},
  38. { "teletext_lines", "teletext lines bitmask", OFFSET(teletext_lines), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, 0x7ffffffffLL, DEC, "teletext_lines"},
  39. { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7fff9fffeLL}, 0, 0, DEC, "teletext_lines"},
  40. { "all", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0x7ffffffffLL}, 0, 0, DEC, "teletext_lines"},
  41. { "channels", "number of audio channels", OFFSET(audio_channels), AV_OPT_TYPE_INT , { .i64 = 2 }, 2, 16, DEC },
  42. { "duplex_mode", "duplex mode", OFFSET(duplex_mode), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, DEC, "duplex_mode"},
  43. { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "duplex_mode"},
  44. { "half", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "duplex_mode"},
  45. { "full", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "duplex_mode"},
  46. { "timecode_format", "timecode format", OFFSET(tc_format), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 7, DEC, "tc_format"},
  47. { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "tc_format"},
  48. { "rp188vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "tc_format"},
  49. { "rp188vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "tc_format"},
  50. { "rp188ltc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "tc_format"},
  51. { "rp188any", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "tc_format"},
  52. { "vitc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "tc_format"},
  53. { "vitc2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "tc_format"},
  54. { "serial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 7}, 0, 0, DEC, "tc_format"},
  55. { "video_input", "video input", OFFSET(video_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, "video_input"},
  56. { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "video_input"},
  57. { "sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "video_input"},
  58. { "hdmi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "video_input"},
  59. { "optical_sdi", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "video_input"},
  60. { "component", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "video_input"},
  61. { "composite", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "video_input"},
  62. { "s_video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "video_input"},
  63. { "audio_input", "audio input", OFFSET(audio_input), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 6, DEC, "audio_input"},
  64. { "unset", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0}, 0, 0, DEC, "audio_input"},
  65. { "embedded", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1}, 0, 0, DEC, "audio_input"},
  66. { "aes_ebu", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2}, 0, 0, DEC, "audio_input"},
  67. { "analog", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3}, 0, 0, DEC, "audio_input"},
  68. { "analog_xlr", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4}, 0, 0, DEC, "audio_input"},
  69. { "analog_rca", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 5}, 0, 0, DEC, "audio_input"},
  70. { "microphone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 6}, 0, 0, DEC, "audio_input"},
  71. { "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"},
  72. { "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"},
  73. { "audio", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_AUDIO }, 0, 0, DEC, "pts_source"},
  74. { "video", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_VIDEO }, 0, 0, DEC, "pts_source"},
  75. { "reference", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_REFERENCE}, 0, 0, DEC, "pts_source"},
  76. { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_WALLCLOCK}, 0, 0, DEC, "pts_source"},
  77. { "abs_wallclock", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PTS_SRC_ABS_WALLCLOCK}, 0, 0, DEC, "pts_source"},
  78. { "draw_bars", "draw bars on signal loss" , OFFSET(draw_bars), AV_OPT_TYPE_BOOL, { .i64 = 1}, 0, 1, DEC },
  79. { "queue_size", "input queue buffer size", OFFSET(queue_size), AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024 * 1024)}, 0, INT64_MAX, DEC },
  80. { "audio_depth", "audio bitdepth (16 or 32)", OFFSET(audio_depth), AV_OPT_TYPE_INT, { .i64 = 16}, 16, 32, DEC },
  81. { "decklink_copyts", "copy timestamps, do not remove the initial offset", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
  82. { "timestamp_align", "capture start time alignment (in seconds)", OFFSET(timestamp_align), AV_OPT_TYPE_DURATION, { .i64 = 0 }, 0, INT_MAX, DEC },
  83. { "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 },
  84. { NULL },
  85. };
  86. static const AVClass decklink_demuxer_class = {
  87. .class_name = "Blackmagic DeckLink indev",
  88. .item_name = av_default_item_name,
  89. .option = options,
  90. .version = LIBAVUTIL_VERSION_INT,
  91. .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
  92. };
  93. AVInputFormat ff_decklink_demuxer = {
  94. .name = "decklink",
  95. .long_name = NULL_IF_CONFIG_SMALL("Blackmagic DeckLink input"),
  96. .flags = AVFMT_NOFILE,
  97. .priv_class = &decklink_demuxer_class,
  98. .priv_data_size = sizeof(struct decklink_cctx),
  99. .get_device_list = ff_decklink_list_input_devices,
  100. .read_header = ff_decklink_read_header,
  101. .read_packet = ff_decklink_read_packet,
  102. .read_close = ff_decklink_read_close,
  103. };