| 1 | /* |
| 2 | * Blackmagic DeckLink common code |
| 3 | * Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, Deti Fliegl |
| 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 | |
| 22 | #include "decklink_common_c.h" |
| 23 | |
| 24 | class decklink_output_callback; |
| 25 | class decklink_input_callback; |
| 26 | |
| 27 | typedef struct AVPacketQueue { |
| 28 | AVPacketList *first_pkt, *last_pkt; |
| 29 | int nb_packets; |
| 30 | unsigned long long size; |
| 31 | int abort_request; |
| 32 | pthread_mutex_t mutex; |
| 33 | pthread_cond_t cond; |
| 34 | AVFormatContext *avctx; |
| 35 | } AVPacketQueue; |
| 36 | |
| 37 | struct decklink_ctx { |
| 38 | /* DeckLink SDK interfaces */ |
| 39 | IDeckLink *dl; |
| 40 | IDeckLinkOutput *dlo; |
| 41 | IDeckLinkInput *dli; |
| 42 | decklink_output_callback *output_callback; |
| 43 | decklink_input_callback *input_callback; |
| 44 | |
| 45 | /* DeckLink mode information */ |
| 46 | BMDTimeValue bmd_tb_den; |
| 47 | BMDTimeValue bmd_tb_num; |
| 48 | BMDDisplayMode bmd_mode; |
| 49 | int bmd_width; |
| 50 | int bmd_height; |
| 51 | int bmd_field_dominance; |
| 52 | |
| 53 | /* Capture buffer queue */ |
| 54 | AVPacketQueue queue; |
| 55 | |
| 56 | /* Streams present */ |
| 57 | int audio; |
| 58 | int video; |
| 59 | |
| 60 | /* Status */ |
| 61 | int playback_started; |
| 62 | int capture_started; |
| 63 | int64_t last_pts; |
| 64 | unsigned long frameCount; |
| 65 | unsigned int dropped; |
| 66 | AVStream *audio_st; |
| 67 | AVStream *video_st; |
| 68 | |
| 69 | /* Options */ |
| 70 | int list_devices; |
| 71 | int list_formats; |
| 72 | double preroll; |
| 73 | |
| 74 | int frames_preroll; |
| 75 | int frames_buffer; |
| 76 | |
| 77 | sem_t semaphore; |
| 78 | |
| 79 | int channels; |
| 80 | }; |
| 81 | |
| 82 | typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t; |
| 83 | |
| 84 | #ifdef _WIN32 |
| 85 | typedef unsigned long buffercount_type; |
| 86 | IDeckLinkIterator *CreateDeckLinkIteratorInstance(void); |
| 87 | #else |
| 88 | typedef uint32_t buffercount_type; |
| 89 | #endif |
| 90 | |
| 91 | |
| 92 | HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName); |
| 93 | int ff_decklink_set_format(AVFormatContext *avctx, int width, int height, int tb_num, int tb_den, decklink_direction_t direction = DIRECTION_OUT, int num = 0); |
| 94 | int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num); |
| 95 | int ff_decklink_list_devices(AVFormatContext *avctx); |
| 96 | int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT); |
| 97 | |