FFmpeg
decklink_common.h
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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 #include "libavutil/thread.h"
33 #include "decklink_common_c.h"
34 #if CONFIG_LIBKLVANC
35 #include "libklvanc/vanc.h"
36 #endif
37 
38 #ifdef _WIN32
39 #define DECKLINK_BOOL BOOL
40 #else
41 #define DECKLINK_BOOL bool
42 #endif
43 
44 #ifdef _WIN32
45 static char *dup_wchar_to_utf8(wchar_t *w)
46 {
47  char *s = NULL;
48  int l = WideCharToMultiByte(CP_UTF8, 0, w, -1, 0, 0, 0, 0);
49  s = (char *) av_malloc(l);
50  if (s)
51  WideCharToMultiByte(CP_UTF8, 0, w, -1, s, l, 0, 0);
52  return s;
53 }
54 #define DECKLINK_STR OLECHAR *
55 #define DECKLINK_STRDUP dup_wchar_to_utf8
56 #define DECKLINK_FREE(s) SysFreeString(s)
57 #elif defined(__APPLE__)
58 static char *dup_cfstring_to_utf8(CFStringRef w)
59 {
60  char s[256];
61  CFStringGetCString(w, s, 255, kCFStringEncodingUTF8);
62  return av_strdup(s);
63 }
64 #define DECKLINK_STR const __CFString *
65 #define DECKLINK_STRDUP dup_cfstring_to_utf8
66 #define DECKLINK_FREE(s) CFRelease(s)
67 #else
68 #define DECKLINK_STR const char *
69 #define DECKLINK_STRDUP av_strdup
70 /* free() is needed for a string returned by the DeckLink SDL. */
71 #define DECKLINK_FREE(s) free((void *) s)
72 #endif
73 
76 
77 typedef struct AVPacketQueue {
80  unsigned long long size;
85  int64_t max_q_size;
87 
88 struct decklink_ctx {
89  /* DeckLink SDK interfaces */
90  IDeckLink *dl;
91  IDeckLinkOutput *dlo;
92  IDeckLinkInput *dli;
93  IDeckLinkConfiguration *cfg;
96 
97  /* DeckLink mode information */
98  BMDTimeValue bmd_tb_den;
99  BMDTimeValue bmd_tb_num;
100  BMDDisplayMode bmd_mode;
101  BMDVideoConnection video_input;
102  BMDAudioConnection audio_input;
103  BMDTimecodeFormat tc_format;
108 
109  /* Capture buffer queue */
111 
112  /* Streams present */
113  int audio;
114  int video;
115 
116  /* Status */
119  int64_t last_pts;
120  unsigned long frameCount;
121  unsigned int dropped;
126 
127  /* Options */
130  int64_t teletext_lines;
131  double preroll;
136  BMDPixelFormat raw_format;
137 
140 
145 
146 #if CONFIG_LIBKLVANC
147  struct klvanc_context_s *vanc_ctx;
148 #endif
149 
150  int channels;
152 };
153 
155 
156 #ifdef _WIN32
157 #if BLACKMAGIC_DECKLINK_API_VERSION < 0x0a040000
158 typedef unsigned long buffercount_type;
159 #else
160 typedef unsigned int buffercount_type;
161 #endif
162 IDeckLinkIterator *CreateDeckLinkIteratorInstance(void);
163 #else
164 typedef uint32_t buffercount_type;
165 #endif
166 
167 static const BMDAudioConnection decklink_audio_connection_map[] = {
168  (BMDAudioConnection)0,
169  bmdAudioConnectionEmbedded,
170  bmdAudioConnectionAESEBU,
171  bmdAudioConnectionAnalog,
172  bmdAudioConnectionAnalogXLR,
173  bmdAudioConnectionAnalogRCA,
174  bmdAudioConnectionMicrophone,
175 };
176 
177 static const BMDVideoConnection decklink_video_connection_map[] = {
178  (BMDVideoConnection)0,
179  bmdVideoConnectionSDI,
180  bmdVideoConnectionHDMI,
181  bmdVideoConnectionOpticalSDI,
182  bmdVideoConnectionComponent,
183  bmdVideoConnectionComposite,
184  bmdVideoConnectionSVideo,
185 };
186 
187 static const BMDTimecodeFormat decklink_timecode_format_map[] = {
188  (BMDTimecodeFormat)0,
189  bmdTimecodeRP188VITC1,
190  bmdTimecodeRP188VITC2,
191  bmdTimecodeRP188LTC,
192  bmdTimecodeRP188Any,
193  bmdTimecodeVITC,
194  bmdTimecodeVITCField2,
195  bmdTimecodeSerial,
196 };
197 
199 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);
200 int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);
201 int ff_decklink_list_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list, int show_inputs, int show_outputs);
202 void ff_decklink_list_devices_legacy(AVFormatContext *avctx, int show_inputs, int show_outputs);
205 int ff_decklink_init_device(AVFormatContext *avctx, const char* name);
206 
207 #endif /* AVDEVICE_DECKLINK_COMMON_H */
#define NULL
Definition: coverity.c:32
pthread_cond_t cond
Format I/O context.
Definition: avformat.h:1358
#define av_malloc(s)
pthread_mutex_t mutex
#define height
AVPacketList * last_pkt
static char * dup_wchar_to_utf8(wchar_t *w)
Definition: dshow.c:132
AVPacketList * first_pkt
unsigned long long size
#define width
uint8_t w
Definition: llviddspenc.c:38
#define s(width, name)
Definition: cbs_vp9.c:257
Stream structure.
Definition: avformat.h:881
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
AVFieldOrder
Definition: avcodec.h:1543
int64_t max_q_size
AVFormatContext * avctx
List of devices.
Definition: avdevice.h:460
_fmutex pthread_mutex_t
Definition: os2threads.h:49
const char * name
Definition: opengl_enc.c:102