1 /*
2 * Blackmagic DeckLink common code
3 * Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, 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
23 #ifndef AVDEVICE_DECKLINK_COMMON_H
24 #define AVDEVICE_DECKLINK_COMMON_H
25
26 #include <DeckLinkAPIVersion.h>
27 #if BLACKMAGIC_DECKLINK_API_VERSION < 0x0b000000
28 #define IID_IDeckLinkProfileAttributes IID_IDeckLinkAttributes
29 #define IDeckLinkProfileAttributes IDeckLinkAttributes
30 #endif
31
32 extern "C" {
33 #include "libavcodec/packet_internal.h"
34 }
35 #include "libavutil/thread.h"
36 #include "decklink_common_c.h"
37 #if CONFIG_LIBKLVANC
38 #include "libklvanc/vanc.h"
39 #endif
40
41 #ifdef _WIN32
42 #define DECKLINK_BOOL BOOL
43 #else
44 #define DECKLINK_BOOL bool
45 #endif
46
47 #ifdef _WIN32
dup_wchar_to_utf8(wchar_t * w)48 static char *dup_wchar_to_utf8(wchar_t *w)
49 {
50 char *s = NULL;
51 int l = WideCharToMultiByte(CP_UTF8, 0, w, -1, 0, 0, 0, 0);
52 s = (char *) av_malloc(l);
53 if (s)
54 WideCharToMultiByte(CP_UTF8, 0, w, -1, s, l, 0, 0);
55 return s;
56 }
57 #define DECKLINK_STR OLECHAR *
58 #define DECKLINK_STRDUP dup_wchar_to_utf8
59 #define DECKLINK_FREE(s) SysFreeString(s)
60 #elif defined(__APPLE__)
dup_cfstring_to_utf8(CFStringRef w)61 static char *dup_cfstring_to_utf8(CFStringRef w)
62 {
63 char s[256];
64 CFStringGetCString(w, s, 255, kCFStringEncodingUTF8);
65 return av_strdup(s);
66 }
67 #define DECKLINK_STR const __CFString *
68 #define DECKLINK_STRDUP dup_cfstring_to_utf8
69 #define DECKLINK_FREE(s) CFRelease(s)
70 #else
71 #define DECKLINK_STR const char *
72 #define DECKLINK_STRDUP av_strdup
73 /* free() is needed for a string returned by the DeckLink SDL. */
74 #define DECKLINK_FREE(s) free((void *) s)
75 #endif
76
77 class decklink_output_callback;
78 class decklink_input_callback;
79
80 typedef struct AVPacketQueue {
81 PacketList pkt_list;
82 int nb_packets;
83 unsigned long long size;
84 int abort_request;
85 pthread_mutex_t mutex;
86 pthread_cond_t cond;
87 AVFormatContext *avctx;
88 int64_t max_q_size;
89 } AVPacketQueue;
90
91 struct decklink_ctx {
92 /* DeckLink SDK interfaces */
93 IDeckLink *dl;
94 IDeckLinkOutput *dlo;
95 IDeckLinkInput *dli;
96 IDeckLinkConfiguration *cfg;
97 IDeckLinkProfileAttributes *attr;
98 decklink_output_callback *output_callback;
99
100 /* DeckLink mode information */
101 BMDTimeValue bmd_tb_den;
102 BMDTimeValue bmd_tb_num;
103 BMDDisplayMode bmd_mode;
104 BMDVideoConnection video_input;
105 BMDAudioConnection audio_input;
106 BMDTimecodeFormat tc_format;
107 int bmd_width;
108 int bmd_height;
109 int bmd_field_dominance;
110 int supports_vanc;
111
112 /* Capture buffer queue */
113 AVPacketQueue queue;
114
115 /* Streams present */
116 int audio;
117 int video;
118
119 /* Status */
120 int playback_started;
121 int64_t last_pts;
122 unsigned long frameCount;
123 unsigned int dropped;
124 AVStream *audio_st;
125 AVStream *video_st;
126 AVStream *klv_st;
127 AVStream *teletext_st;
128 uint16_t cdp_sequence_num;
129
130 /* Options */
131 int list_devices;
132 int list_formats;
133 int enable_klv;
134 int64_t teletext_lines;
135 double preroll;
136 int duplex_mode;
137 BMDLinkConfiguration link;
138 DecklinkPtsSource audio_pts_source;
139 DecklinkPtsSource video_pts_source;
140 int draw_bars;
141 BMDPixelFormat raw_format;
142
143 int frames_preroll;
144 int frames_buffer;
145
146 pthread_mutex_t mutex;
147 pthread_cond_t cond;
148 int frames_buffer_available_spots;
149 int autodetect;
150
151 #if CONFIG_LIBKLVANC
152 struct klvanc_context_s *vanc_ctx;
153 #endif
154
155 int channels;
156 int audio_depth;
157 unsigned long tc_seen; // used with option wait_for_tc
158 };
159
160 typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;
161
162 static const BMDPixelFormat decklink_raw_format_map[] = {
163 (BMDPixelFormat)0,
164 bmdFormat8BitYUV,
165 bmdFormat10BitYUV,
166 bmdFormat8BitARGB,
167 bmdFormat8BitBGRA,
168 bmdFormat10BitRGB,
169 };
170
171 static const BMDAudioConnection decklink_audio_connection_map[] = {
172 (BMDAudioConnection)0,
173 bmdAudioConnectionEmbedded,
174 bmdAudioConnectionAESEBU,
175 bmdAudioConnectionAnalog,
176 bmdAudioConnectionAnalogXLR,
177 bmdAudioConnectionAnalogRCA,
178 bmdAudioConnectionMicrophone,
179 };
180
181 static const BMDVideoConnection decklink_video_connection_map[] = {
182 (BMDVideoConnection)0,
183 bmdVideoConnectionSDI,
184 bmdVideoConnectionHDMI,
185 bmdVideoConnectionOpticalSDI,
186 bmdVideoConnectionComponent,
187 bmdVideoConnectionComposite,
188 bmdVideoConnectionSVideo,
189 };
190
191 static const BMDTimecodeFormat decklink_timecode_format_map[] = {
192 (BMDTimecodeFormat)0,
193 bmdTimecodeRP188VITC1,
194 bmdTimecodeRP188VITC2,
195 bmdTimecodeRP188LTC,
196 bmdTimecodeRP188Any,
197 bmdTimecodeVITC,
198 bmdTimecodeVITCField2,
199 bmdTimecodeSerial,
200 #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
201 bmdTimecodeRP188HighFrameRate,
202 #else
203 (BMDTimecodeFormat)0,
204 #endif
205 };
206
207 static const BMDLinkConfiguration decklink_link_conf_map[] = {
208 (BMDLinkConfiguration)0,
209 bmdLinkConfigurationSingleLink,
210 bmdLinkConfigurationDualLink,
211 bmdLinkConfigurationQuadLink
212 };
213
214 #if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
215 static const BMDProfileID decklink_profile_id_map[] = {
216 (BMDProfileID)0,
217 bmdProfileTwoSubDevicesHalfDuplex,
218 bmdProfileOneSubDeviceFullDuplex,
219 bmdProfileOneSubDeviceHalfDuplex,
220 bmdProfileTwoSubDevicesFullDuplex,
221 bmdProfileFourSubDevicesHalfDuplex,
222 };
223 #endif
224
225 int ff_decklink_set_configs(AVFormatContext *avctx, decklink_direction_t direction);
226 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);
227 int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction);
228 int ff_decklink_list_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list, int show_inputs, int show_outputs);
229 void ff_decklink_list_devices_legacy(AVFormatContext *avctx, int show_inputs, int show_outputs);
230 int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT);
231 void ff_decklink_cleanup(AVFormatContext *avctx);
232 int ff_decklink_init_device(AVFormatContext *avctx, const char* name);
233
234 #endif /* AVDEVICE_DECKLINK_COMMON_H */
235