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/*
* Blackmagic DeckLink common code
* Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, Deti Fliegl
*
* 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>
#include "decklink_common_c.h"
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;
} AVPacketQueue;
struct decklink_ctx {
/* DeckLink SDK interfaces */
IDeckLink *dl;
IDeckLinkOutput *dlo;
IDeckLinkInput *dli;
decklink_output_callback *output_callback;
decklink_input_callback *input_callback;
/* DeckLink mode information */
BMDTimeValue bmd_tb_den;
BMDTimeValue bmd_tb_num;
BMDDisplayMode bmd_mode;
int bmd_width;
int bmd_height;
int bmd_field_dominance;
/* 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;
/* Options */
int list_devices;
int list_formats;
int64_t teletext_lines;
double preroll;
int frames_preroll;
int frames_buffer;
sem_t semaphore;
int channels;
};
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
HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName);
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);
int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);
int ff_decklink_list_devices(AVFormatContext *avctx);
int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT);
#endif /* AVDEVICE_DECKLINK_COMMON_H */
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