decklink_dec.cpp File Reference

#include "libavformat/internal.h"
#include <DeckLinkAPI.h>
#include "config.h"
#include "libavformat/avformat.h"
#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/time.h"
#include "libavutil/mathematics.h"
#include "libavutil/reverse.h"
#include "avdevice.h"
#include "decklink_common.h"
#include "decklink_dec.h"

Go to the source code of this file.

Data Structures
struct	VANCLineNumber
class	decklink_input_callback

Macros
#define	MAX_WIDTH_VANC   1920

Functions
static int	get_vanc_line_idx (BMDDisplayMode mode)
static void	clear_parity_bits (uint16_t *buf, int len)
static int	check_vanc_parity_checksum (uint16_t *buf, int len, uint16_t checksum)
static void	extract_luma_from_v210 (uint16_t *dst, const uint8_t *src, int width)
static void	unpack_v210 (uint16_t *dst, const uint8_t *src, int width)
static uint8_t	calc_parity_and_line_offset (int line)
static void	fill_data_unit_head (int line, uint8_t *tgt)
static uint8_t *	teletext_data_unit_from_op47_vbi_packet (int line, uint16_t *py, uint8_t *tgt)
static int	linemask_matches (int line, int64_t mask)
static uint8_t *	teletext_data_unit_from_op47_data (uint16_t *py, uint16_t *pend, uint8_t *tgt, int64_t wanted_lines)
static uint8_t *	teletext_data_unit_from_ancillary_packet (uint16_t *py, uint16_t *pend, uint8_t *tgt, int64_t wanted_lines, int allow_multipacket)
static uint8_t *	vanc_to_cc (AVFormatContext *avctx, uint16_t *buf, size_t words, unsigned &cc_count)
static uint8_t *	get_metadata (AVFormatContext *avctx, uint16_t *buf, size_t width, uint8_t *tgt, size_t tgt_size, AVPacket *pkt)
static void	avpacket_queue_init (AVFormatContext *avctx, AVPacketQueue *q)
static void	avpacket_queue_flush (AVPacketQueue *q)
static void	avpacket_queue_end (AVPacketQueue *q)
static unsigned long long	avpacket_queue_size (AVPacketQueue *q)
static int	avpacket_queue_put (AVPacketQueue *q, AVPacket *pkt)
static int	avpacket_queue_get (AVPacketQueue *q, AVPacket *pkt, int block)
static int64_t	get_pkt_pts (IDeckLinkVideoInputFrame *videoFrame, IDeckLinkAudioInputPacket *audioFrame, int64_t wallclock, int64_t abs_wallclock, DecklinkPtsSource pts_src, AVRational time_base, int64_t *initial_pts, int copyts)
static int	decklink_autodetect (struct decklink_cctx *cctx)
av_cold int	ff_decklink_read_close (AVFormatContext *avctx)
av_cold int	ff_decklink_read_header (AVFormatContext *avctx)
int	ff_decklink_read_packet (AVFormatContext *avctx, AVPacket *pkt)
int	ff_decklink_list_input_devices (AVFormatContext *avctx, struct AVDeviceInfoList *device_list)

Variables
const BMDDisplayMode	AUTODETECT_DEFAULT_MODE = bmdModeNTSC
static VANCLineNumber	vanc_line_numbers []

Macro Definition Documentation

#define MAX_WIDTH_VANC   1920

Definition at line 52 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

Function Documentation

static int get_vanc_line_idx ( BMDDisplayMode  mode )

static

Definition at line 101 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

static void clear_parity_bits ( uint16_t *  buf, int  len  )

inlinestatic

Definition at line 112 of file decklink_dec.cpp.

Referenced by get_metadata().

static int check_vanc_parity_checksum ( uint16_t *  buf, int  len, uint16_t  checksum  )

static

Definition at line 118 of file decklink_dec.cpp.

Referenced by get_metadata().

static void extract_luma_from_v210 ( uint16_t *  dst, const uint8_t *  src, int  width  )

static

Definition at line 141 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

static void unpack_v210 ( uint16_t *  dst, const uint8_t *  src, int  width  )

static

Definition at line 152 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

static uint8_t calc_parity_and_line_offset ( int  line )

static

Definition at line 163 of file decklink_dec.cpp.

Referenced by fill_data_unit_head().

static void fill_data_unit_head ( int  line, uint8_t *  tgt  )

static

Definition at line 173 of file decklink_dec.cpp.

Referenced by teletext_data_unit_from_op47_vbi_packet().

static uint8_t* teletext_data_unit_from_op47_vbi_packet ( int  line, uint16_t *  py, uint8_t *  tgt  )

static

Definition at line 214 of file decklink_dec.cpp.

Referenced by teletext_data_unit_from_op47_data().

static int linemask_matches ( int  line, int64_t  mask  )

static

Definition at line 232 of file decklink_dec.cpp.

Referenced by teletext_data_unit_from_op47_data().

static uint8_t* teletext_data_unit_from_op47_data ( uint16_t *  py, uint16_t *  pend, uint8_t *  tgt, int64_t  wanted_lines  )

static

Definition at line 242 of file decklink_dec.cpp.

Referenced by teletext_data_unit_from_ancillary_packet().

static uint8_t* teletext_data_unit_from_ancillary_packet ( uint16_t *  py, uint16_t *  pend, uint8_t *  tgt, int64_t  wanted_lines, int  allow_multipacket  )

static

Definition at line 259 of file decklink_dec.cpp.

Referenced by get_metadata().

static uint8_t* vanc_to_cc ( AVFormatContext *  avctx, uint16_t *  buf, size_t  words, unsigned &  cc_count  )

static

Definition at line 278 of file decklink_dec.cpp.

Referenced by get_metadata().

static uint8_t* get_metadata ( AVFormatContext *  avctx, uint16_t *  buf, size_t  width, uint8_t *  tgt, size_t  tgt_size, AVPacket *  pkt  )

static

Definition at line 368 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

static void avpacket_queue_init ( AVFormatContext *  avctx, AVPacketQueue *  q  )

static

Definition at line 421 of file decklink_dec.cpp.

Referenced by ff_decklink_read_header().

static void avpacket_queue_flush ( AVPacketQueue *  q )

static

Definition at line 431 of file decklink_dec.cpp.

Referenced by avpacket_queue_end().

static void avpacket_queue_end ( AVPacketQueue *  q )

static

Definition at line 448 of file decklink_dec.cpp.

Referenced by ff_decklink_read_close().

static unsigned long long avpacket_queue_size ( AVPacketQueue *  q )

static

Definition at line 455 of file decklink_dec.cpp.

Referenced by avpacket_queue_put(), and decklink_input_callback::VideoInputFrameArrived().

static int avpacket_queue_put ( AVPacketQueue *  q, AVPacket *  pkt  )

static

Definition at line 464 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

static int avpacket_queue_get ( AVPacketQueue *  q, AVPacket *  pkt, int  block  )

static

Definition at line 506 of file decklink_dec.cpp.

Referenced by ff_decklink_read_packet().

static int64_t get_pkt_pts ( IDeckLinkVideoInputFrame *  videoFrame, IDeckLinkAudioInputPacket *  audioFrame, int64_t  wallclock, int64_t  abs_wallclock, DecklinkPtsSource  pts_src, AVRational  time_base, int64_t *  initial_pts, int  copyts  )

static

Definition at line 597 of file decklink_dec.cpp.

Referenced by decklink_input_callback::VideoInputFrameArrived().

static int decklink_autodetect ( struct decklink_cctx *  cctx )

static

Definition at line 842 of file decklink_dec.cpp.

Referenced by ff_decklink_read_header().

av_cold int ff_decklink_read_close

(

AVFormatContext *

avctx

)

Definition at line 892 of file decklink_dec.cpp.

av_cold int ff_decklink_read_header

(

AVFormatContext *

avctx

)

Definition at line 911 of file decklink_dec.cpp.

int ff_decklink_read_packet	(	AVFormatContext *	avctx,
		AVPacket *	pkt
	)

Definition at line 1163 of file decklink_dec.cpp.

int ff_decklink_list_input_devices	(	AVFormatContext *	avctx,
		struct AVDeviceInfoList *	device_list
	)

Definition at line 1173 of file decklink_dec.cpp.

Variable Documentation

const BMDDisplayMode AUTODETECT_DEFAULT_MODE = bmdModeNTSC

Definition at line 53 of file decklink_dec.cpp.

Referenced by decklink_autodetect(), and decklink_input_callback::VideoInputFrameArrived().

VANCLineNumber vanc_line_numbers[]

static

Definition at line 68 of file decklink_dec.cpp.