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f6fa7814 DM |
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 |