gxfenc.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/intfloat.h"
#include "libavutil/opt.h"
#include "libavutil/mathematics.h"
#include "libavutil/timecode.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "gxf.h"

Go to the source code of this file.

Data Structures
struct	GXFTimecode
struct	GXFStreamContext
struct	GXFContext

Macros
#define	GXF_SAMPLES_PER_FRAME   32768
#define	GXF_AUDIO_PACKET_SIZE   65536
#define	GXF_TIMECODE(c, d, h, m, s, f)   ((c) << 30 | (d) << 29 | (h) << 24 | (m) << 16 | (s) << 8 | (f))
#define	SERVER_PATH   "EXT:/PDR/default/"
#define	ES_NAME_PATTERN   "EXT:/PDR/default/ES."

Functions
static int	gxf_find_lines_index (AVStream *st)
static void	gxf_write_padding (AVIOContext *pb, int64_t to_pad)
static int64_t	updatePacketSize (AVIOContext *pb, int64_t pos)
static int64_t	updateSize (AVIOContext *pb, int64_t pos)
static void	gxf_write_packet_header (AVIOContext *pb, GXFPktType type)
static int	gxf_write_mpeg_auxiliary (AVIOContext *pb, AVStream *st)
static int	gxf_write_dv_auxiliary (AVIOContext *pb, AVStream *st)
static int	gxf_write_timecode_auxiliary (AVIOContext *pb, GXFContext *gxf)
static int	gxf_write_track_description (AVFormatContext *s, GXFStreamContext *sc, int index)
static int	gxf_write_material_data_section (AVFormatContext *s)
static int	gxf_write_track_description_section (AVFormatContext *s)
static int	gxf_write_map_packet (AVFormatContext *s, int rewrite)
static int	gxf_write_flt_packet (AVFormatContext *s)
static int	gxf_write_umf_material_description (AVFormatContext *s)
static int	gxf_write_umf_payload (AVFormatContext *s)
static int	gxf_write_umf_track_description (AVFormatContext *s)
static int	gxf_write_umf_media_mpeg (AVIOContext *pb, AVStream *st)
static int	gxf_write_umf_media_timecode (AVIOContext *pb, int drop)
static int	gxf_write_umf_media_dv (AVIOContext *pb, GXFStreamContext *sc, AVStream *st)
static int	gxf_write_umf_media_audio (AVIOContext *pb, GXFStreamContext *sc)
static int	gxf_write_umf_media_description (AVFormatContext *s)
static int	gxf_write_umf_packet (AVFormatContext *s)
static void	gxf_init_timecode_track (GXFStreamContext *sc, GXFStreamContext *vsc)
static int	gxf_init_timecode (AVFormatContext *s, GXFTimecode *tc, const char *tcstr, int fields)
static int	gxf_write_header (AVFormatContext *s)
static int	gxf_write_eos_packet (AVIOContext *pb)
static int	gxf_write_trailer (AVFormatContext *s)
static void	gxf_deinit (AVFormatContext *s)
static int	gxf_parse_mpeg_frame (GXFStreamContext *sc, const uint8_t *buf, int size)
static int	gxf_write_media_preamble (AVFormatContext *s, AVPacket *pkt, int size)
static int	gxf_write_packet (AVFormatContext *s, AVPacket *pkt)
static int	gxf_compare_field_nb (AVFormatContext *s, const AVPacket *next, const AVPacket *cur)
static int	gxf_interleave_packet (AVFormatContext *s, AVPacket *pkt, int flush, int has_packet)

Variables
struct {
int   height
int   index
}	gxf_lines_tab []
static const AVCodecTag	gxf_media_types []
const AVOutputFormat	ff_gxf_muxer

Macro Definition Documentation

GXF_SAMPLES_PER_FRAME

#define GXF_SAMPLES_PER_FRAME   32768

Definition at line 32 of file gxfenc.c.

GXF_AUDIO_PACKET_SIZE

#define GXF_AUDIO_PACKET_SIZE   65536

Definition at line 33 of file gxfenc.c.

GXF_TIMECODE

#define GXF_TIMECODE	(		c,
			d,
			h,
			m,
			s,
			f
	)		((c) << 30 | (d) << 29 | (h) << 24 | (m) << 16 | (s) << 8 | (f))

Definition at line 35 of file gxfenc.c.

SERVER_PATH

#define SERVER_PATH   "EXT:/PDR/default/"

Definition at line 119 of file gxfenc.c.

ES_NAME_PATTERN

#define ES_NAME_PATTERN   "EXT:/PDR/default/ES."

Definition at line 120 of file gxfenc.c.

Function Documentation

gxf_find_lines_index()

static int gxf_find_lines_index ( AVStream *  st )

static

Definition at line 122 of file gxfenc.c.

Referenced by gxf_write_header().

gxf_write_padding()

static void gxf_write_padding ( AVIOContext *  pb, int64_t  to_pad  )

static

Definition at line 136 of file gxfenc.c.

Referenced by gxf_write_packet(), and updatePacketSize().

updatePacketSize()

static int64_t updatePacketSize ( AVIOContext *  pb, int64_t  pos  )

static

Definition at line 141 of file gxfenc.c.

Referenced by gxf_write_eos_packet(), gxf_write_flt_packet(), gxf_write_map_packet(), gxf_write_packet(), and gxf_write_umf_packet().

updateSize()

static int64_t updateSize ( AVIOContext *  pb, int64_t  pos  )

static

Definition at line 158 of file gxfenc.c.

Referenced by gxf_write_material_data_section(), gxf_write_track_description(), and gxf_write_track_description_section().

gxf_write_packet_header()

static void gxf_write_packet_header ( AVIOContext *  pb, GXFPktType  type  )

static

Definition at line 169 of file gxfenc.c.

Referenced by gxf_write_eos_packet(), gxf_write_flt_packet(), gxf_write_map_packet(), gxf_write_packet(), and gxf_write_umf_packet().

gxf_write_mpeg_auxiliary()

static int gxf_write_mpeg_auxiliary ( AVIOContext *  pb, AVStream *  st  )

static

Definition at line 180 of file gxfenc.c.

Referenced by gxf_write_track_description().

gxf_write_dv_auxiliary()

static int gxf_write_dv_auxiliary ( AVIOContext *  pb, AVStream *  st  )

static

Definition at line 219 of file gxfenc.c.

Referenced by gxf_write_track_description().

gxf_write_timecode_auxiliary()

static int gxf_write_timecode_auxiliary ( AVIOContext *  pb, GXFContext *  gxf  )

static

Definition at line 232 of file gxfenc.c.

Referenced by gxf_write_track_description().

gxf_write_track_description()

static int gxf_write_track_description ( AVFormatContext *  s, GXFStreamContext *  sc, int  index  )

static

Definition at line 246 of file gxfenc.c.

Referenced by gxf_write_track_description_section().

gxf_write_material_data_section()

static int gxf_write_material_data_section ( AVFormatContext *  s )

static

Definition at line 307 of file gxfenc.c.

Referenced by gxf_write_map_packet().

gxf_write_track_description_section()

static int gxf_write_track_description_section ( AVFormatContext *  s )

static

Definition at line 358 of file gxfenc.c.

Referenced by gxf_write_map_packet().

gxf_write_map_packet()

static int gxf_write_map_packet ( AVFormatContext *  s, int  rewrite  )

static

Definition at line 375 of file gxfenc.c.

Referenced by gxf_write_header(), gxf_write_packet(), and gxf_write_trailer().

gxf_write_flt_packet()

static int gxf_write_flt_packet ( AVFormatContext *  s )

static

Definition at line 407 of file gxfenc.c.

Referenced by gxf_write_header(), and gxf_write_trailer().

gxf_write_umf_material_description()

static int gxf_write_umf_material_description ( AVFormatContext *  s )

static

Definition at line 431 of file gxfenc.c.

Referenced by gxf_write_umf_packet().

gxf_write_umf_payload()

static int gxf_write_umf_payload ( AVFormatContext *  s )

static

Definition at line 477 of file gxfenc.c.

Referenced by gxf_write_umf_packet().

gxf_write_umf_track_description()

static int gxf_write_umf_track_description ( AVFormatContext *  s )

static

Definition at line 497 of file gxfenc.c.

Referenced by gxf_write_umf_packet().

gxf_write_umf_media_mpeg()

static int gxf_write_umf_media_mpeg ( AVIOContext *  pb, AVStream *  st  )

static

Definition at line 517 of file gxfenc.c.

Referenced by gxf_write_umf_media_description().

gxf_write_umf_media_timecode()

static int gxf_write_umf_media_timecode ( AVIOContext *  pb, int  drop  )

static

Definition at line 540 of file gxfenc.c.

Referenced by gxf_write_umf_media_description().

gxf_write_umf_media_dv()

static int gxf_write_umf_media_dv ( AVIOContext *  pb, GXFStreamContext *  sc, AVStream *  st  )

static

Definition at line 547 of file gxfenc.c.

Referenced by gxf_write_umf_media_description().

gxf_write_umf_media_audio()

static int gxf_write_umf_media_audio ( AVIOContext *  pb, GXFStreamContext *  sc  )

static

Definition at line 558 of file gxfenc.c.

Referenced by gxf_write_umf_media_description().

gxf_write_umf_media_description()

static int gxf_write_umf_media_description ( AVFormatContext *  s )

static

Definition at line 569 of file gxfenc.c.

Referenced by gxf_write_umf_packet().

gxf_write_umf_packet()

static int gxf_write_umf_packet ( AVFormatContext *  s )

static

Definition at line 629 of file gxfenc.c.

Referenced by gxf_write_header(), and gxf_write_trailer().

gxf_init_timecode_track()

static void gxf_init_timecode_track ( GXFStreamContext *  sc, GXFStreamContext *  vsc  )

static

Definition at line 650 of file gxfenc.c.

Referenced by gxf_write_header().

gxf_init_timecode()

static int gxf_init_timecode ( AVFormatContext *  s, GXFTimecode *  tc, const char *  tcstr, int  fields  )

static

Definition at line 665 of file gxfenc.c.

Referenced by gxf_write_header().

gxf_write_header()

static int gxf_write_header ( AVFormatContext *  s )

static

Definition at line 684 of file gxfenc.c.

gxf_write_eos_packet()

static int gxf_write_eos_packet ( AVIOContext *  pb )

static

Definition at line 822 of file gxfenc.c.

Referenced by gxf_write_trailer().

gxf_write_trailer()

static int gxf_write_trailer ( AVFormatContext *  s )

static

Definition at line 830 of file gxfenc.c.

gxf_deinit()

static void gxf_deinit ( AVFormatContext *  s )

static

Definition at line 858 of file gxfenc.c.

gxf_parse_mpeg_frame()

static int gxf_parse_mpeg_frame ( GXFStreamContext *  sc, const uint8_t *  buf, int  size  )

static

Definition at line 866 of file gxfenc.c.

Referenced by gxf_write_media_preamble().

gxf_write_media_preamble()

static int gxf_write_media_preamble ( AVFormatContext *  s, AVPacket *  pkt, int  size  )

static

Definition at line 878 of file gxfenc.c.

Referenced by gxf_write_packet().

gxf_write_packet()

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

static

Definition at line 925 of file gxfenc.c.

gxf_compare_field_nb()

static int gxf_compare_field_nb ( AVFormatContext *  s, const AVPacket *  next, const AVPacket *  cur  )

static

Definition at line 972 of file gxfenc.c.

Referenced by gxf_interleave_packet().

gxf_interleave_packet()

static int gxf_interleave_packet ( AVFormatContext *  s, AVPacket *  pkt, int  flush, int  has_packet  )

static

Definition at line 995 of file gxfenc.c.

Variable Documentation

height

int height

Definition at line 90 of file gxfenc.c.

index

int index

Definition at line 90 of file gxfenc.c.

Referenced by gxf_write_track_description().

gxf_lines_tab

const { ... } gxf_lines_tab[]

Initial value:

= {
    { 480,  1 }, 
    { 512,  1 }, 
    { 576,  2 }, 
    { 608,  2 }, 
    { 1080, 4 },
    { 720,  6 },
}

Referenced by gxf_find_lines_index().

gxf_media_types

const AVCodecTag gxf_media_types[]

static

Initial value:

= {
    { AV_CODEC_ID_MJPEG     ,   3 }, 
    { AV_CODEC_ID_MJPEG     ,   4 }, 
    { AV_CODEC_ID_PCM_S24LE ,   9 },
    { AV_CODEC_ID_PCM_S16LE ,  10 },
    { AV_CODEC_ID_MPEG2VIDEO,  11 }, 
    { AV_CODEC_ID_MPEG2VIDEO,  12 }, 
    { AV_CODEC_ID_DVVIDEO   ,  13 }, 
    { AV_CODEC_ID_DVVIDEO   ,  14 }, 
    { AV_CODEC_ID_DVVIDEO   ,  15 }, 
    { AV_CODEC_ID_DVVIDEO   ,  16 }, 
    { AV_CODEC_ID_AC3       ,  17 },
    
    { AV_CODEC_ID_MPEG2VIDEO,  20 }, 
    { AV_CODEC_ID_MPEG1VIDEO,  22 }, 
    { AV_CODEC_ID_MPEG1VIDEO,  23 }, 
    { AV_CODEC_ID_NONE,         0 },
}

Definition at line 100 of file gxfenc.c.

Referenced by gxf_write_header().

ff_gxf_muxer

const AVOutputFormat ff_gxf_muxer

Initial value:

= {
    .name              = "gxf",
    .long_name         = NULL_IF_CONFIG_SMALL("GXF (General eXchange Format)"),
    .extensions        = "gxf",
    .priv_data_size    = sizeof(GXFContext),
    .audio_codec       = AV_CODEC_ID_PCM_S16LE,
    .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
    .write_header      = gxf_write_header,
    .write_packet      = gxf_write_packet,
    .write_trailer     = gxf_write_trailer,
    .deinit            = gxf_deinit,
    .interleave_packet = gxf_interleave_packet,
}

Definition at line 1013 of file gxfenc.c.