path: root/libavdevice/decklink_common.h (plain)
blob: 4753287ecf79852041ea4c4d28dc56e2bfde42f9

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	#ifndef AVDEVICE_DECKLINK_COMMON_H
23	#define AVDEVICE_DECKLINK_COMMON_H
24
25	#include <DeckLinkAPIVersion.h>
26
27	#include "decklink_common_c.h"
28
29	class decklink_output_callback;
30	class decklink_input_callback;
31
32	typedef struct AVPacketQueue {
33	AVPacketList *first_pkt, *last_pkt;
34	int nb_packets;
35	unsigned long long size;
36	int abort_request;
37	pthread_mutex_t mutex;
38	pthread_cond_t cond;
39	AVFormatContext *avctx;
40	} AVPacketQueue;
41
42	struct decklink_ctx {
43	/* DeckLink SDK interfaces */
44	IDeckLink *dl;
45	IDeckLinkOutput *dlo;
46	IDeckLinkInput *dli;
47	IDeckLinkConfiguration *cfg;
48	IDeckLinkAttributes *attr;
49	decklink_output_callback *output_callback;
50	decklink_input_callback *input_callback;
51
52	/* DeckLink mode information */
53	BMDTimeValue bmd_tb_den;
54	BMDTimeValue bmd_tb_num;
55	BMDDisplayMode bmd_mode;
56	BMDVideoConnection video_input;
57	BMDAudioConnection audio_input;
58	int bmd_width;
59	int bmd_height;
60	int bmd_field_dominance;
61
62	/* Capture buffer queue */
63	AVPacketQueue queue;
64
65	/* Streams present */
66	int audio;
67	int video;
68
69	/* Status */
70	int playback_started;
71	int capture_started;
72	int64_t last_pts;
73	unsigned long frameCount;
74	unsigned int dropped;
75	AVStream *audio_st;
76	AVStream *video_st;
77	AVStream *teletext_st;
78
79	/* Options */
80	int list_devices;
81	int list_formats;
82	int64_t teletext_lines;
83	double preroll;
84	int duplex_mode;
85	DecklinkPtsSource audio_pts_source;
86	DecklinkPtsSource video_pts_source;
87	int draw_bars;
88
89	int frames_preroll;
90	int frames_buffer;
91
92	sem_t semaphore;
93
94	int channels;
95	};
96
97	typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;
98
99	#ifdef _WIN32
100	#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0a040000
101	typedef unsigned long buffercount_type;
102	#else
103	typedef unsigned int buffercount_type;
104	#endif
105	IDeckLinkIterator *CreateDeckLinkIteratorInstance(void);
106	#else
107	typedef uint32_t buffercount_type;
108	#endif
109
110	static const BMDAudioConnection decklink_audio_connection_map[] = {
111	(BMDAudioConnection)0,
112	bmdAudioConnectionEmbedded,
113	bmdAudioConnectionAESEBU,
114	bmdAudioConnectionAnalog,
115	bmdAudioConnectionAnalogXLR,
116	bmdAudioConnectionAnalogRCA,
117	bmdAudioConnectionMicrophone,
118	};
119
120	static const BMDVideoConnection decklink_video_connection_map[] = {
121	(BMDVideoConnection)0,
122	bmdVideoConnectionSDI,
123	bmdVideoConnectionHDMI,
124	bmdVideoConnectionOpticalSDI,
125	bmdVideoConnectionComponent,
126	bmdVideoConnectionComposite,
127	bmdVideoConnectionSVideo,
128	};
129
130	HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName);
131	int ff_decklink_set_format(AVFormatContext *avctx, int width, int height, int tb_num, int tb_den, enum AVFieldOrder field_order, decklink_direction_t direction = DIRECTION_OUT, int num = 0);
132	int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);
133	int ff_decklink_list_devices(AVFormatContext *avctx);
134	int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT);
135	void ff_decklink_cleanup(AVFormatContext *avctx);
136	int ff_decklink_init_device(AVFormatContext *avctx, const char* name);
137
138	#endif /* AVDEVICE_DECKLINK_COMMON_H */
139