dv.c File Reference

#include <time.h>
#include "avformat.h"
#include "internal.h"
#include "libavcodec/dv_profile.h"
#include "libavcodec/dv.h"
#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/timecode.h"
#include "dv.h"
#include "libavutil/avassert.h"

Go to the source code of this file.

Data Structures
struct	DVDemuxContext
struct	RawDVContext

Functions
static uint16_t	dv_audio_12to16 (uint16_t sample)
static const uint8_t *	dv_extract_pack (const uint8_t *frame, enum dv_pack_type t)
static int	dv_extract_audio (const uint8_t *frame, uint8_t **ppcm, const AVDVProfile *sys)
static int	dv_extract_audio_info (DVDemuxContext *c, const uint8_t *frame)
static int	dv_extract_video_info (DVDemuxContext *c, const uint8_t *frame)
static int	dv_extract_timecode (DVDemuxContext *c, const uint8_t *frame, char *tc)
DVDemuxContext *	avpriv_dv_init_demux (AVFormatContext *s)
int	avpriv_dv_get_packet (DVDemuxContext *c, AVPacket *pkt)
int	avpriv_dv_produce_packet (DVDemuxContext *c, AVPacket *pkt, uint8_t *buf, int buf_size, int64_t pos)
static int64_t	dv_frame_offset (AVFormatContext *s, DVDemuxContext *c, int64_t timestamp, int flags)
void	ff_dv_offset_reset (DVDemuxContext *c, int64_t frame_offset)
static int	dv_read_timecode (AVFormatContext *s)
static int	dv_read_header (AVFormatContext *s)
static int	dv_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	dv_read_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static int	dv_read_close (AVFormatContext *s)
static int	dv_probe (AVProbeData *p)

Variables
static const int	dv_audio_frequency [3]
AVInputFormat	ff_dv_demuxer

Function Documentation

static uint16_t dv_audio_12to16 ( uint16_t  sample )

inlinestatic

Definition at line 55 of file dv.c.

Referenced by dv_extract_audio().

static const uint8_t* dv_extract_pack ( const uint8_t *  frame, enum dv_pack_type  t  )

static

Definition at line 75 of file dv.c.

Referenced by dv_extract_audio(), dv_extract_audio_info(), dv_extract_timecode(), and dv_extract_video_info().

static int dv_extract_audio ( const uint8_t *  frame, uint8_t **  ppcm, const AVDVProfile *  sys  )

static

Definition at line 119 of file dv.c.

Referenced by avpriv_dv_produce_packet().

static int dv_extract_audio_info ( DVDemuxContext *  c, const uint8_t *  frame  )

static

Definition at line 222 of file dv.c.

Referenced by avpriv_dv_produce_packet().

static int dv_extract_video_info ( DVDemuxContext *  c, const uint8_t *  frame  )

static

Definition at line 282 of file dv.c.

Referenced by avpriv_dv_produce_packet().

static int dv_extract_timecode ( DVDemuxContext *  c, const uint8_t *  frame, char *  tc  )

static

Definition at line 310 of file dv.c.

Referenced by dv_read_timecode().

DVDemuxContext* avpriv_dv_init_demux

(

AVFormatContext *

s

)

Definition at line 328 of file dv.c.

Referenced by avi_read_header(), dv1394_read_header(), dv_read_header(), iec61883_read_header(), and mov_finalize_stsd_codec().

int avpriv_dv_get_packet	(	DVDemuxContext *	c,
		AVPacket *	pkt
	)

Definition at line 351 of file dv.c.

Referenced by avi_read_packet(), dv1394_read_packet(), dv_read_packet(), iec61883_parse_queue_dv(), and mov_read_packet().

int avpriv_dv_produce_packet	(	DVDemuxContext *	c,
		AVPacket *	pkt,
		uint8_t *	buf,
		int	buf_size,
		int64_t	pos
	)

Definition at line 368 of file dv.c.

Referenced by dv1394_read_packet(), dv_read_packet(), iec61883_parse_queue_dv(), and mov_read_packet().

static int64_t dv_frame_offset ( AVFormatContext *  s, DVDemuxContext *  c, int64_t  timestamp, int  flags  )

static

Definition at line 421 of file dv.c.

Referenced by dv_read_seek().

void ff_dv_offset_reset	(	DVDemuxContext *	c,
		int64_t	frame_offset
	)

Definition at line 441 of file dv.c.

Referenced by avi_read_seek(), and dv_read_seek().

static int dv_read_timecode ( AVFormatContext *  s )

static

Definition at line 464 of file dv.c.

static int dv_read_header ( AVFormatContext *  s )

static

Definition at line 499 of file dv.c.

static int dv_read_packet ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 548 of file dv.c.

static int dv_read_seek ( AVFormatContext *  s, int  stream_index, int64_t  timestamp, int  flags  )

static

Definition at line 574 of file dv.c.

static int dv_read_close ( AVFormatContext *  s )

static

Definition at line 588 of file dv.c.

static int dv_probe ( AVProbeData *  p )

static

Definition at line 595 of file dv.c.

Variable Documentation

const int dv_audio_frequency[3]

static

Initial value:

= {
    48000, 44100, 32000,
}

Definition at line 107 of file dv.c.

Referenced by dv_extract_audio(), and dv_extract_audio_info().

AVInputFormat ff_dv_demuxer

Initial value:

= {
    .name           = "dv",
    .long_name      = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
    .priv_data_size = sizeof(RawDVContext),
    .read_probe     = dv_probe,
    .read_header    = dv_read_header,
    .read_packet    = dv_read_packet,
    .read_close     = dv_read_close,
    .read_seek      = dv_read_seek,
    .extensions     = "dv,dif",
}

Definition at line 637 of file dv.c.