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/*
* Blackmagic DeckLink common code
* Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, Deti Fliegl
* Copyright (c) 2017 Akamai Technologies, Inc.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVDEVICE_DECKLINK_COMMON_H
#define AVDEVICE_DECKLINK_COMMON_H
#include <DeckLinkAPIVersion.h>
#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0b000000
#define IID_IDeckLinkProfileAttributes IID_IDeckLinkAttributes
#define IDeckLinkProfileAttributes IDeckLinkAttributes
#endif
#include "libavutil/thread.h"
#include "decklink_common_c.h"
#if CONFIG_LIBKLVANC
#include "libklvanc/vanc.h"
#endif
#ifdef _WIN32
#define DECKLINK_BOOL BOOL
#else
#define DECKLINK_BOOL bool
#endif
#ifdef _WIN32
static char *dup_wchar_to_utf8(wchar_t *w)
{
char *s = NULL;
int l = WideCharToMultiByte(CP_UTF8, 0, w, -1, 0, 0, 0, 0);
s = (char *) av_malloc(l);
if (s)
WideCharToMultiByte(CP_UTF8, 0, w, -1, s, l, 0, 0);
return s;
}
#define DECKLINK_STR OLECHAR *
#define DECKLINK_STRDUP dup_wchar_to_utf8
#define DECKLINK_FREE(s) SysFreeString(s)
#elif defined(__APPLE__)
static char *dup_cfstring_to_utf8(CFStringRef w)
{
char s[256];
CFStringGetCString(w, s, 255, kCFStringEncodingUTF8);
return av_strdup(s);
}
#define DECKLINK_STR const __CFString *
#define DECKLINK_STRDUP dup_cfstring_to_utf8
#define DECKLINK_FREE(s) CFRelease(s)
#else
#define DECKLINK_STR const char *
#define DECKLINK_STRDUP av_strdup
/* free() is needed for a string returned by the DeckLink SDL. */
#define DECKLINK_FREE(s) free((void *) s)
#endif
class decklink_output_callback;
class decklink_input_callback;
typedef struct AVPacketQueue {
AVPacketList *first_pkt, *last_pkt;
int nb_packets;
unsigned long long size;
int abort_request;
pthread_mutex_t mutex;
pthread_cond_t cond;
AVFormatContext *avctx;
int64_t max_q_size;
} AVPacketQueue;
struct decklink_ctx {
/* DeckLink SDK interfaces */
IDeckLink *dl;
IDeckLinkOutput *dlo;
IDeckLinkInput *dli;
IDeckLinkConfiguration *cfg;
IDeckLinkProfileAttributes *attr;
decklink_output_callback *output_callback;
/* DeckLink mode information */
BMDTimeValue bmd_tb_den;
BMDTimeValue bmd_tb_num;
BMDDisplayMode bmd_mode;
BMDVideoConnection video_input;
BMDAudioConnection audio_input;
BMDTimecodeFormat tc_format;
int bmd_width;
int bmd_height;
int bmd_field_dominance;
int supports_vanc;
/* Capture buffer queue */
AVPacketQueue queue;
/* Streams present */
int audio;
int video;
/* Status */
int playback_started;
int capture_started;
int64_t last_pts;
unsigned long frameCount;
unsigned int dropped;
AVStream *audio_st;
AVStream *video_st;
AVStream *teletext_st;
uint16_t cdp_sequence_num;
/* Options */
int list_devices;
int list_formats;
int64_t teletext_lines;
double preroll;
int duplex_mode;
DecklinkPtsSource audio_pts_source;
DecklinkPtsSource video_pts_source;
int draw_bars;
BMDPixelFormat raw_format;
int frames_preroll;
int frames_buffer;
pthread_mutex_t mutex;
pthread_cond_t cond;
int frames_buffer_available_spots;
int autodetect;
#if CONFIG_LIBKLVANC
struct klvanc_context_s *vanc_ctx;
#endif
int channels;
int audio_depth;
unsigned long tc_seen; // used with option wait_for_tc
};
typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;
#ifdef _WIN32
#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0a040000
typedef unsigned long buffercount_type;
#else
typedef unsigned int buffercount_type;
#endif
IDeckLinkIterator *CreateDeckLinkIteratorInstance(void);
#else
typedef uint32_t buffercount_type;
#endif
static const BMDAudioConnection decklink_audio_connection_map[] = {
(BMDAudioConnection)0,
bmdAudioConnectionEmbedded,
bmdAudioConnectionAESEBU,
bmdAudioConnectionAnalog,
bmdAudioConnectionAnalogXLR,
bmdAudioConnectionAnalogRCA,
bmdAudioConnectionMicrophone,
};
static const BMDVideoConnection decklink_video_connection_map[] = {
(BMDVideoConnection)0,
bmdVideoConnectionSDI,
bmdVideoConnectionHDMI,
bmdVideoConnectionOpticalSDI,
bmdVideoConnectionComponent,
bmdVideoConnectionComposite,
bmdVideoConnectionSVideo,
};
static const BMDTimecodeFormat decklink_timecode_format_map[] = {
(BMDTimecodeFormat)0,
bmdTimecodeRP188VITC1,
bmdTimecodeRP188VITC2,
bmdTimecodeRP188LTC,
bmdTimecodeRP188Any,
bmdTimecodeVITC,
bmdTimecodeVITCField2,
bmdTimecodeSerial,
};
int ff_decklink_set_configs(AVFormatContext *avctx, decklink_direction_t direction);
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);
int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);
int ff_decklink_list_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list, int show_inputs, int show_outputs);
void ff_decklink_list_devices_legacy(AVFormatContext *avctx, int show_inputs, int show_outputs);
int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT);
void ff_decklink_cleanup(AVFormatContext *avctx);
int ff_decklink_init_device(AVFormatContext *avctx, const char* name);
#endif /* AVDEVICE_DECKLINK_COMMON_H */
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