mux_gsf.c File Reference

#include <gpac/filters.h>
#include <gpac/constants.h>
#include <gpac/bitstream.h>
#include <gpac/network.h>
#include <gpac/internal/media_dev.h>
#include <gpac/crypt.h>

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Data Structures
struct	GSFStream
struct	GSFMxCtx

Macros
#define	OFFS(_n)   #_n, offsetof(GSFMxCtx, _n)

Enumerations
enum	GF_GSFPacketType {   GFS_PCKTYPE_HDR =0 , GFS_PCKTYPE_PID_CONFIG , GFS_PCKTYPE_PID_INFO_UPDATE , GFS_PCKTYPE_PID_REMOVE ,   GFS_PCKTYPE_PID_EOS , GFS_PCKTYPE_PCK , GFS_PCKTYPE_UNDEF1 , GFS_PCKTYPE_UNDEF2 ,   GFS_PCKTYPE_UNDEF3 , GFS_PCKTYPE_UNDEF4 , GFS_PCKTYPE_UNDEF5 , GFS_PCKTYPE_UNDEF6 ,   GFS_PCKTYPE_UNDEF7 , GFS_PCKTYPE_UNDEF8 , GFS_PCKTYPE_UNDEF9 , GFS_PCKTYPE_UNDEF10 }

Functions
static GFINLINE u32	get_vlen_size (u32 len)
static GFINLINE void	gsfmx_write_vlen (GSFMxCtx *ctx, u32 len)
static GFINLINE u32	gsfmx_get_header_size (GSFMxCtx *ctx, GSFStream *gst, Bool use_seq_num, Bool first_frag, Bool no_frag, u32 pck_size, u32 block_size, u32 block_offset)
static void	gsfmx_encrypt (GSFMxCtx *ctx, char *data, u32 nb_crypt_bytes)
static void	gsfmx_send_packets (GSFMxCtx *ctx, GSFStream *gst, GF_GSFPacketType pck_type, Bool is_end, Bool is_redundant, u32 frame_size, u32 frame_hdr_size)
static void	gsfmx_send_pid_rem (GSFMxCtx *ctx, GSFStream *gst)
static void	gsfmx_send_pid_eos (GSFMxCtx *ctx, GSFStream *gst, Bool is_eos)
static Bool	gsfmx_can_serialize_prop (const GF_PropertyValue *p, u32 prop_4cc)
static void	gsfmx_write_prop (GSFMxCtx *ctx, const GF_PropertyValue *p)
static GFINLINE Bool	gsfmx_is_prop_skip (GSFMxCtx *ctx, u32 prop_4cc, const char *prop_name, u8 sep_l)
static void	gsfmx_write_pid_config (GF_Filter *filter, GSFMxCtx *ctx, GSFStream *gst)
static void	gsfmx_send_header (GF_Filter *filter, GSFMxCtx *ctx, Bool is_carousel_update)
static void	gsfmx_send_pid_config (GF_Filter *filter, GSFMxCtx *ctx, GSFStream *gst, Bool is_info, Bool is_carousel_update)
static void	gsfmx_write_data_packet (GSFMxCtx *ctx, GSFStream *gst, GF_FilterPacket *pck)
GF_Err	gsfmx_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
GF_Err	gsfmx_process (GF_Filter *filter)
static Bool	gsfmx_process_event (GF_Filter *filter, const GF_FilterEvent *evt)
static GF_Err	gsfmx_initialize (GF_Filter *filter)
static void	gsfmx_finalize (GF_Filter *filter)
static Bool	gsfmx_use_alias (GF_Filter *filter, const char *url, const char *mime)
const GF_FilterRegister *	gsfmx_register (GF_FilterSession *session)

Variables
static const GF_FilterCapability	GSFMxCaps []
static const GF_FilterArgs	GSFMxArgs []
GF_FilterRegister	GSFMxRegister

---

Data Structure Documentation

GSFStream

struct GSFStream

Data Fields
GF_FilterPid *	pid
u32	idx
u16	nb_frames
Bool	eos
u8	config_version
u64	last_cts_config
u32	timescale
u32	is_file

GSFMxCtx

struct GSFMxCtx

Collaboration diagram for GSFMxCtx:

Data Fields
Bool	sigsn
Bool	sigdur
Bool	sigbo
Bool	sigdts
Bool	minp
Bool	mixed
u32	dbg
const char *	magic
const char *	skp
const char *	ext
const char *	mime
const char *	dst
GF_PropData	key
GF_PropData	IV
GF_Fraction	pattern
u32	mpck
Double	crate
GF_FilterPid *	opid
GF_List *	streams
u8 *	buffer
u32	alloc_size
GF_BitStream *	bs_w
Bool	is_start
u32	max_pid_idx
bin128	crypt_IV
GF_Crypt *	crypt
Bool	regenerate_tunein_info
u32	nb_frames
u32	nb_pck
GF_FilterCapability	caps[4]
Bool	filemode

Macro Definition Documentation

OFFS

#define OFFS

(

_n

)

#_n, offsetof(GSFMxCtx, _n)

Enumeration Type Documentation

GF_GSFPacketType

enum GF_GSFPacketType

Enumerator
GFS_PCKTYPE_HDR
GFS_PCKTYPE_PID_CONFIG
GFS_PCKTYPE_PID_INFO_UPDATE
GFS_PCKTYPE_PID_REMOVE
GFS_PCKTYPE_PID_EOS
GFS_PCKTYPE_PCK
GFS_PCKTYPE_UNDEF1
GFS_PCKTYPE_UNDEF2
GFS_PCKTYPE_UNDEF3
GFS_PCKTYPE_UNDEF4
GFS_PCKTYPE_UNDEF5
GFS_PCKTYPE_UNDEF6
GFS_PCKTYPE_UNDEF7
GFS_PCKTYPE_UNDEF8
GFS_PCKTYPE_UNDEF9
GFS_PCKTYPE_UNDEF10

Function Documentation

get_vlen_size()

static GFINLINE u32 get_vlen_size ( u32  len )

static

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gsfmx_write_vlen()

static GFINLINE void gsfmx_write_vlen ( GSFMxCtx *  ctx, u32  len  )

static

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gsfmx_get_header_size()

static GFINLINE u32 gsfmx_get_header_size ( GSFMxCtx *  ctx, GSFStream *  gst, Bool  use_seq_num, Bool  first_frag, Bool  no_frag, u32  pck_size, u32  block_size, u32  block_offset  )

static

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gsfmx_encrypt()

static void gsfmx_encrypt ( GSFMxCtx *  ctx, char *  data, u32  nb_crypt_bytes  )

static

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gsfmx_send_packets()

static void gsfmx_send_packets ( GSFMxCtx *  ctx, GSFStream *  gst, GF_GSFPacketType  pck_type, Bool  is_end, Bool  is_redundant, u32  frame_size, u32  frame_hdr_size  )

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gsfmx_send_pid_rem()

static void gsfmx_send_pid_rem ( GSFMxCtx *  ctx, GSFStream *  gst  )

static

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gsfmx_send_pid_eos()

static void gsfmx_send_pid_eos ( GSFMxCtx *  ctx, GSFStream *  gst, Bool  is_eos  )

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gsfmx_can_serialize_prop()

static Bool gsfmx_can_serialize_prop ( const GF_PropertyValue *  p, u32  prop_4cc  )

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gsfmx_write_prop()

static void gsfmx_write_prop ( GSFMxCtx *  ctx, const GF_PropertyValue *  p  )

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gsfmx_is_prop_skip()

static GFINLINE Bool gsfmx_is_prop_skip ( GSFMxCtx *  ctx, u32  prop_4cc, const char *  prop_name, u8  sep_l  )

static

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gsfmx_write_pid_config()

static void gsfmx_write_pid_config ( GF_Filter *  filter, GSFMxCtx *  ctx, GSFStream *  gst  )

static

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gsfmx_send_header()

static void gsfmx_send_header ( GF_Filter *  filter, GSFMxCtx *  ctx, Bool  is_carousel_update  )

static

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gsfmx_send_pid_config()

static void gsfmx_send_pid_config ( GF_Filter *  filter, GSFMxCtx *  ctx, GSFStream *  gst, Bool  is_info, Bool  is_carousel_update  )

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gsfmx_write_data_packet()

static void gsfmx_write_data_packet ( GSFMxCtx *  ctx, GSFStream *  gst, GF_FilterPacket *  pck  )

static

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gsfmx_configure_pid()

GF_Err gsfmx_configure_pid	(	GF_Filter *	filter,
		GF_FilterPid *	pid,
		Bool	is_remove
	)

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gsfmx_process()

GF_Err gsfmx_process

(

GF_Filter *

filter

)

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gsfmx_process_event()

static Bool gsfmx_process_event ( GF_Filter *  filter, const GF_FilterEvent *  evt  )

static

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gsfmx_initialize()

static GF_Err gsfmx_initialize ( GF_Filter *  filter )

static

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gsfmx_finalize()

static void gsfmx_finalize ( GF_Filter *  filter )

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gsfmx_use_alias()

static Bool gsfmx_use_alias ( GF_Filter *  filter, const char *  url, const char *  mime  )

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gsfmx_register()

const GF_FilterRegister * gsfmx_register

(

GF_FilterSession *

session

)

Variable Documentation

GSFMxCaps

const GF_FilterCapability GSFMxCaps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_STREAM_TYPE, GF_STREAM_FILE),
        CAP_BOOL(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_UINT(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_CODECID, GF_CODECID_NONE),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_FILE),
        CAP_STRING(GF_CAPS_OUTPUT, GF_PROP_PID_FILE_EXT, "gsf"),
        CAP_STRING(GF_CAPS_OUTPUT, GF_PROP_PID_MIME, "application/x-gpac-sf"),
}

GSFMxArgs

const GF_FilterArgs GSFMxArgs[]

static

Initial value:

=
{
        { OFFS(sigsn), "signal packet sequence number after header field and before size field. Sequence number is per PID, encoded on 16 bits. Header packet does not have a SN", GF_PROP_BOOL, "false", NULL, 0},
        { OFFS(sigdur), "signal duration", GF_PROP_BOOL, "true", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(sigbo), "signal byte offset", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(sigdts), "signal decoding timestamp", GF_PROP_BOOL, "true", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(dbg), "set debug mode\n"
        "- no: disable debug\n"
        "- nodata: force packet size to 0\n"
        "- nopck: skip packet", GF_PROP_UINT, "no", "no|nodata|nopck", GF_FS_ARG_HINT_EXPERT},
 
        { OFFS(key), "encrypt packets using given key", GF_PROP_DATA, NULL, NULL, 0},
        { OFFS(IV), "set IV for encryption - a constant IV is used to keep packet overhead small (cbcs-like)", GF_PROP_DATA, NULL, NULL, 0},
        { OFFS(pattern), "set nb_crypt / nb_skip block pattern. default is all encrypted", GF_PROP_FRACTION, "1/0", NULL, GF_FS_ARG_HINT_ADVANCED},
 
        { OFFS(mpck), "set max packet size. 0 means no fragmentation (each AU is sent in one packet)", GF_PROP_UINT, "0", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(magic), "magic string to append in setup packet", GF_PROP_STRING, NULL, NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(skp), "comma separated list of PID property names to skip", GF_PROP_STRING, NULL, NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(minp), "include only the minimum set of properties required for stream processing", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(crate), "carousel period for tune-in info in seconds", GF_PROP_DOUBLE, "0", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ext), "file extension for file mode", GF_PROP_STRING, NULL, NULL, GF_FS_ARG_HINT_EXPERT},
        { OFFS(dst), "target URL in file mode", GF_PROP_STRING, NULL, NULL, GF_FS_ARG_HINT_EXPERT|GF_FS_ARG_SINK_ALIAS},
        { OFFS(mime), "file mime for file mode", GF_PROP_STRING, NULL, NULL, GF_FS_ARG_HINT_HIDE},
        { OFFS(mixed), "allow GSF to contain both files and media streams", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_EXPERT|GF_FS_ARG_SINK_ALIAS},
        {0}
}

GSFMxRegister

GF_FilterRegister GSFMxRegister