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https://github.com/FFmpeg/FFmpeg.git
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7f890b2fbb
This is not public API, no it has no need for an alloc() and free() functions. The struct can reside on stack. Signed-off-by: James Almer <jamrial@gmail.com>
246 lines
7.2 KiB
C++
246 lines
7.2 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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* Copyright (c) 2017 Akamai Technologies, Inc.
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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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#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0b000000
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#define IID_IDeckLinkProfileAttributes IID_IDeckLinkAttributes
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#define IDeckLinkProfileAttributes IDeckLinkAttributes
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#endif
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extern "C" {
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#include "libavcodec/packet_internal.h"
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#include "libavfilter/ccfifo.h"
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}
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#include "libavutil/thread.h"
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#include "decklink_common_c.h"
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#if CONFIG_LIBKLVANC
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#include "libklvanc/vanc.h"
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#endif
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#ifdef _WIN32
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#define DECKLINK_BOOL BOOL
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#else
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#define DECKLINK_BOOL bool
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#endif
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#ifdef _WIN32
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static char *dup_wchar_to_utf8(wchar_t *w)
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{
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char *s = NULL;
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int l = WideCharToMultiByte(CP_UTF8, 0, w, -1, 0, 0, 0, 0);
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s = (char *) av_malloc(l);
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if (s)
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WideCharToMultiByte(CP_UTF8, 0, w, -1, s, l, 0, 0);
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return s;
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}
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#define DECKLINK_STR OLECHAR *
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#define DECKLINK_STRDUP dup_wchar_to_utf8
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#define DECKLINK_FREE(s) SysFreeString(s)
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#elif defined(__APPLE__)
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static char *dup_cfstring_to_utf8(CFStringRef w)
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{
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char s[256];
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CFStringGetCString(w, s, 255, kCFStringEncodingUTF8);
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return av_strdup(s);
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}
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#define DECKLINK_STR const __CFString *
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#define DECKLINK_STRDUP dup_cfstring_to_utf8
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#define DECKLINK_FREE(s) CFRelease(s)
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#else
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#define DECKLINK_STR const char *
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#define DECKLINK_STRDUP av_strdup
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/* free() is needed for a string returned by the DeckLink SDL. */
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#define DECKLINK_FREE(s) free((void *) s)
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#endif
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class decklink_output_callback;
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class decklink_input_callback;
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typedef struct DecklinkPacketQueue {
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PacketList pkt_list;
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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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int64_t max_q_size;
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} DecklinkPacketQueue;
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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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IDeckLinkConfiguration *cfg;
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IDeckLinkProfileAttributes *attr;
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decklink_output_callback *output_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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BMDVideoConnection video_input;
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BMDAudioConnection audio_input;
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BMDTimecodeFormat tc_format;
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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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int supports_vanc;
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/* Capture buffer queue */
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DecklinkPacketQueue queue;
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CCFifo cc_fifo; ///< closed captions
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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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int64_t first_pts;
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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 *klv_st;
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AVStream *teletext_st;
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uint16_t cdp_sequence_num;
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/* Options */
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int list_devices;
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int list_formats;
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int enable_klv;
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int64_t teletext_lines;
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double preroll;
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int duplex_mode;
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BMDLinkConfiguration link;
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DecklinkPtsSource audio_pts_source;
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DecklinkPtsSource video_pts_source;
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int draw_bars;
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BMDPixelFormat raw_format;
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int frames_preroll;
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int frames_buffer;
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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int frames_buffer_available_spots;
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int autodetect;
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#if CONFIG_LIBKLVANC
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struct klvanc_context_s *vanc_ctx;
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#endif
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int channels;
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int audio_depth;
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unsigned long tc_seen; // used with option wait_for_tc
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};
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typedef enum { DIRECTION_IN, DIRECTION_OUT} decklink_direction_t;
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static const BMDPixelFormat decklink_raw_format_map[] = {
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(BMDPixelFormat)0,
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bmdFormat8BitYUV,
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bmdFormat10BitYUV,
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bmdFormat8BitARGB,
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bmdFormat8BitBGRA,
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bmdFormat10BitRGB,
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};
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static const BMDAudioConnection decklink_audio_connection_map[] = {
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(BMDAudioConnection)0,
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bmdAudioConnectionEmbedded,
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bmdAudioConnectionAESEBU,
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bmdAudioConnectionAnalog,
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bmdAudioConnectionAnalogXLR,
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bmdAudioConnectionAnalogRCA,
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bmdAudioConnectionMicrophone,
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};
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static const BMDVideoConnection decklink_video_connection_map[] = {
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(BMDVideoConnection)0,
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bmdVideoConnectionSDI,
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bmdVideoConnectionHDMI,
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bmdVideoConnectionOpticalSDI,
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bmdVideoConnectionComponent,
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bmdVideoConnectionComposite,
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bmdVideoConnectionSVideo,
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};
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static const BMDTimecodeFormat decklink_timecode_format_map[] = {
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(BMDTimecodeFormat)0,
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bmdTimecodeRP188VITC1,
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bmdTimecodeRP188VITC2,
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bmdTimecodeRP188LTC,
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bmdTimecodeRP188Any,
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bmdTimecodeVITC,
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bmdTimecodeVITCField2,
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bmdTimecodeSerial,
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#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
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bmdTimecodeRP188HighFrameRate,
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#else
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(BMDTimecodeFormat)0,
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#endif
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};
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static const BMDLinkConfiguration decklink_link_conf_map[] = {
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(BMDLinkConfiguration)0,
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bmdLinkConfigurationSingleLink,
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bmdLinkConfigurationDualLink,
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bmdLinkConfigurationQuadLink
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};
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#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
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static const BMDProfileID decklink_profile_id_map[] = {
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(BMDProfileID)0,
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bmdProfileTwoSubDevicesHalfDuplex,
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bmdProfileOneSubDeviceFullDuplex,
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bmdProfileOneSubDeviceHalfDuplex,
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bmdProfileTwoSubDevicesFullDuplex,
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bmdProfileFourSubDevicesHalfDuplex,
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};
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#endif
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int ff_decklink_set_configs(AVFormatContext *avctx, decklink_direction_t direction);
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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);
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int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction);
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int ff_decklink_list_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list, int show_inputs, int show_outputs);
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void ff_decklink_list_devices_legacy(AVFormatContext *avctx, int show_inputs, int show_outputs);
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int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction = DIRECTION_OUT);
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void ff_decklink_cleanup(AVFormatContext *avctx);
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int ff_decklink_init_device(AVFormatContext *avctx, const char* name);
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void ff_decklink_packet_queue_init(AVFormatContext *avctx, DecklinkPacketQueue *q);
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void ff_decklink_packet_queue_flush(DecklinkPacketQueue *q);
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void ff_decklink_packet_queue_end(DecklinkPacketQueue *q);
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unsigned long long ff_decklink_packet_queue_size(DecklinkPacketQueue *q);
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int ff_decklink_packet_queue_put(DecklinkPacketQueue *q, AVPacket *pkt);
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int ff_decklink_packet_queue_get(DecklinkPacketQueue *q, AVPacket *pkt, int block);
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#endif /* AVDEVICE_DECKLINK_COMMON_H */
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