mirror of
https://github.com/FFmpeg/FFmpeg.git
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110 lines
3.0 KiB
C++
110 lines
3.0 KiB
C++
/*
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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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#include <pthread.h>
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#include <semaphore.h>
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#include <DeckLinkAPI.h>
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extern "C" {
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#include "libavformat/avformat.h"
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#include "decklink_common_c.h"
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}
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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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/* Options */
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int list_devices;
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int list_formats;
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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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