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/*

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 * Blackmagic DeckLink common code

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 * Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, Deti Fliegl

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 *

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 * This file is part of FFmpeg.

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 *

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 * FFmpeg is free software; you can redistribute it and/or

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 * modify it under the terms of the GNU Lesser General Public

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 * License as published by the Free Software Foundation; either

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 * version 2.1 of the License, or (at your option) any later version.

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 *

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 * FFmpeg is distributed in the hope that it will be useful,

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 * but WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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 * Lesser General Public License for more details.

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 *

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 * You should have received a copy of the GNU Lesser General Public

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 * License along with FFmpeg; if not, write to the Free Software

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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

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 */

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#ifndef AVDEVICE_DECKLINK_COMMON_H

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#define AVDEVICE_DECKLINK_COMMON_H

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#include <DeckLinkAPIVersion.h>

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#include "decklink_common_c.h"

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class decklink_output_callback;

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class decklink_input_callback;

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typedef struct AVPacketQueue {

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    AVPacketList *first_pkt, *last_pkt;

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    int nb_packets;

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    unsigned long long size;

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    int abort_request;

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    pthread_mutex_t mutex;

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    pthread_cond_t cond;

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    AVFormatContext *avctx;

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} AVPacketQueue;

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struct decklink_ctx {

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    /* DeckLink SDK interfaces */

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    IDeckLink *dl;

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    IDeckLinkOutput *dlo;

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    IDeckLinkInput *dli;

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    decklink_output_callback *output_callback;

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    decklink_input_callback *input_callback;

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    /* DeckLink mode information */

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    BMDTimeValue bmd_tb_den;

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    BMDTimeValue bmd_tb_num;

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    BMDDisplayMode bmd_mode;

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    int bmd_width;

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    int bmd_height;

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    int bmd_field_dominance;

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    /* Capture buffer queue */

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    AVPacketQueue queue;

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    /* Streams present */

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    int audio;

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    int video;

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    /* Status */

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    int playback_started;

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    int capture_started;

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    int64_t last_pts;

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    unsigned long frameCount;

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    unsigned int dropped;

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    AVStream *audio_st;

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    AVStream *video_st;

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    AVStream *teletext_st;

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    /* Options */

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    int list_devices;

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    int list_formats;

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    int64_t teletext_lines;

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    double preroll;

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    int frames_preroll;

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    int frames_buffer;

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    sem_t semaphore;

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    int channels;

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};

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typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;

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#ifdef _WIN32

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#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0a040000

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typedef unsigned long buffercount_type;

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#else

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typedef unsigned int buffercount_type;

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#endif

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IDeckLinkIterator *CreateDeckLinkIteratorInstance(void);

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#else

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typedef uint32_t buffercount_type;

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#endif

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HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName);

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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);

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int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);

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int ff_decklink_list_devices(AVFormatContext *avctx);

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int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT);

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#endif /* AVDEVICE_DECKLINK_COMMON_H */

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