movie_fragments.c File Reference

#include <gpac/internal/isomedia_dev.h>

Include dependency graph for movie_fragments.c:

Data Structures
struct	SIDXEntry

Functions
GF_TrackExtendsBox *	GetTrex (GF_MovieBox *moov, GF_ISOTrackID TrackID)
GF_TrackFragmentBox *	gf_isom_get_traf (GF_ISOFile *mov, GF_ISOTrackID TrackID)
GF_Err	gf_isom_set_movie_duration (GF_ISOFile *movie, u64 duration, Bool remove_mehd)
GF_EXPORT GF_Err	gf_isom_finalize_for_fragment (GF_ISOFile *movie, u32 media_segment_type, Bool mvex_after_tracks)
GF_Err	gf_isom_change_track_fragment_defaults (GF_ISOFile *movie, GF_ISOTrackID TrackID, u32 DefaultSampleDescriptionIndex, u32 DefaultSampleDuration, u32 DefaultSampleSize, u8 DefaultSampleIsSync, u8 DefaultSamplePadding, u16 DefaultDegradationPriority, u8 force_traf_flags)
GF_EXPORT GF_Err	gf_isom_setup_track_fragment (GF_ISOFile *movie, GF_ISOTrackID TrackID, u32 DefaultSampleDescriptionIndex, u32 DefaultSampleDuration, u32 DefaultSampleSize, u8 DefaultSampleSyncFlags, u8 DefaultSamplePadding, u16 DefaultDegradationPriority, Bool force_traf_flags)
GF_EXPORT GF_Err	gf_isom_setup_track_fragment_template (GF_ISOFile *movie, GF_ISOTrackID TrackID, u8 *boxes, u32 boxes_size, u8 force_traf_flags)
u32	GetNumUsedValues (GF_TrackFragmentBox *traf, u32 value, u32 index)
void	ComputeFragmentDefaults (GF_TrackFragmentBox *traf)
GF_EXPORT GF_Err	gf_isom_set_fragment_option (GF_ISOFile *movie, GF_ISOTrackID TrackID, GF_ISOTrackFragmentOption Code, u32 Param)
void	update_trun_offsets (GF_ISOFile *movie, s32 offset)
static u32	UpdateRuns (GF_ISOFile *movie, GF_TrackFragmentBox *traf)
static s32	get_earliest_cts_following (GF_TrackFragmentBox *traf, u32 trun_idx, u32 samp_idx)
static u32	moof_get_sap_info (GF_MovieFragmentBox *moof, GF_ISOTrackID refTrackID, u32 *sap_delta, Bool *starts_with_sap)
u32	moof_get_duration (GF_MovieFragmentBox *moof, GF_ISOTrackID refTrackID)
static u64	moof_get_earliest_cts (GF_MovieFragmentBox *moof, GF_ISOTrackID refTrackID)
GF_Err	gf_isom_write_compressed_box (GF_ISOFile *mov, GF_Box *root_box, u32 repl_type, GF_BitStream *bs, u32 *box_csize)
void	flush_ref_samples (GF_ISOFile *movie, u64 *out_seg_size, Bool is_last_moof)
GF_Err	gf_bs_grow (GF_BitStream *bs, u32 addSize)
static GF_Err	StoreFragment (GF_ISOFile *movie, Bool load_mdat_only, s32 data_offset_diff, u32 *moof_size, Bool reassign_bs)
static GF_Err	sidx_rewrite (GF_SegmentIndexBox *sidx, GF_BitStream *bs, u64 start_pos, GF_SubsegmentIndexBox *ssix)
GF_Err	gf_isom_allocate_sidx (GF_ISOFile *movie, s32 subsegs_per_sidx, Bool daisy_chain_sidx, u32 nb_segs, u32 *frags_per_segment, u32 *start_range, u32 *end_range, Bool use_ssix)
static GF_Err	gf_isom_write_styp (GF_ISOFile *movie, Bool last_segment)
GF_EXPORT GF_Err	gf_isom_flush_fragments (GF_ISOFile *movie, Bool last_segment)
static u64	get_presentation_time (u64 media_time, s32 ts_shift)
static void	compute_seg_size (GF_ISOFile *movie, u64 *out_seg_size)
static u32	moof_get_first_sap_end (GF_MovieFragmentBox *moof)
static u64	estimate_next_moof_earliest_presentation_time (u64 ref_track_decode_time, s32 ts_shift, u32 refTrackID, GF_ISOFile *movie)
GF_EXPORT GF_Err	gf_isom_close_segment (GF_ISOFile *movie, s32 subsegments_per_sidx, GF_ISOTrackID referenceTrackID, u64 ref_track_decode_time, s32 ts_shift, u64 ref_track_next_cts, Bool daisy_chain_sidx, Bool use_ssix, Bool last_segment, Bool close_segment_handle, u32 segment_marker_4cc, u64 *index_start_range, u64 *index_end_range, u64 *out_seg_size)
GF_EXPORT GF_Err	gf_isom_flush_sidx (GF_ISOFile *movie, u32 sidx_max_size, Bool force_v1)
GF_EXPORT GF_Err	gf_isom_close_fragments (GF_ISOFile *movie)
GF_EXPORT GF_Err	gf_isom_start_segment (GF_ISOFile *movie, const char *SegName, Bool memory_mode)
GF_EXPORT GF_Err	gf_isom_set_fragment_reference_time (GF_ISOFile *movie, GF_ISOTrackID reference_track_ID, u64 ntp, u64 timestamp)
GF_EXPORT GF_Err	gf_isom_set_traf_mss_timeext (GF_ISOFile *movie, GF_ISOTrackID reference_track_ID, u64 ntp_in_track_timescale, u64 traf_duration_in_track_timescale)
GF_EXPORT GF_Err	gf_isom_start_fragment (GF_ISOFile *movie, GF_ISOStartFragmentFlags flags)
GF_Err	gf_isom_set_fragment_template (GF_ISOFile *movie, u8 *tpl_data, u32 tpl_size, Bool *has_tfdt, GF_SegmentIndexBox **out_sidx)
GF_EXPORT GF_Err	gf_isom_fragment_add_sample_ex (GF_ISOFile *movie, GF_ISOTrackID TrackID, const GF_ISOSample *sample, u32 DescIndex, u32 Duration, u8 PaddingBits, u16 DegradationPriority, Bool redundant_coding, void **ref, u32 ref_offset)
GF_EXPORT GF_Err	gf_isom_fragment_add_sample (GF_ISOFile *movie, GF_ISOTrackID TrackID, const GF_ISOSample *sample, u32 DescIndex, u32 Duration, u8 PaddingBits, u16 DegradationPriority, Bool redundant_coding)
GF_EXPORT GF_Err	gf_isom_fragment_set_cenc_sai (GF_ISOFile *output, GF_ISOTrackID TrackID, u8 *sai_b, u32 sai_b_size, Bool use_subsamples, Bool use_saio_32bit, Bool use_multikey)
GF_EXPORT GF_Err	gf_isom_fragment_append_data_ex (GF_ISOFile *movie, GF_ISOTrackID TrackID, u8 *data, u32 data_size, u8 PaddingBits, void **ref, u32 ref_offset)
GF_EXPORT GF_Err	gf_isom_fragment_append_data (GF_ISOFile *movie, GF_ISOTrackID TrackID, u8 *data, u32 data_size, u8 PaddingBits)
GF_Err	gf_isom_fragment_add_subsample (GF_ISOFile *movie, GF_ISOTrackID TrackID, u32 flags, u32 subSampleSize, u8 priority, u32 reserved, Bool discardable)
GF_Err	gf_isom_set_fragment_original_duration (GF_ISOFile *movie, GF_ISOTrackID TrackID, u32 orig_dur, u32 elapsed_dur)
GF_Err	gf_isom_fragment_set_sample_flags (GF_ISOFile *movie, GF_ISOTrackID trackID, u32 is_leading, u32 dependsOn, u32 dependedOn, u32 redundant)
GF_EXPORT GF_Err	gf_isom_set_traf_base_media_decode_time (GF_ISOFile *movie, GF_ISOTrackID TrackID, u64 decode_time)
GF_Err	gf_isom_enable_mfra (GF_ISOFile *file)
GF_EXPORT void	gf_isom_set_next_moof_number (GF_ISOFile *movie, u32 value)
GF_EXPORT u32	gf_isom_get_next_moof_number (GF_ISOFile *movie)
GF_Err	gf_isom_set_emsg (GF_ISOFile *movie, u8 *data, u32 size)
GF_EXPORT Bool	gf_isom_is_track_fragmented (GF_ISOFile *movie, GF_ISOTrackID TrackID)
GF_EXPORT Bool	gf_isom_is_fragmented (GF_ISOFile *movie)
GF_Err	isom_sample_refs_push (GF_SampleReferences *sref, s32 refID, u32 nb_refs, s32 *refs)
GF_EXPORT GF_Err	gf_isom_fragment_add_sample_references (GF_ISOFile *movie, GF_ISOTrackID TrackID, s32 refID, u32 nb_refs, s32 *refs)

---

Data Structure Documentation

SIDXEntry

struct SIDXEntry

Collaboration diagram for SIDXEntry:

Data Fields
GF_SegmentIndexBox *	sidx
u64	start_offset
u64	end_offset

Function Documentation

GetTrex()

GF_TrackExtendsBox* GetTrex	(	GF_MovieBox *	moov,
		GF_ISOTrackID	TrackID
	)

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gf_isom_get_traf()

GF_TrackFragmentBox* gf_isom_get_traf	(	GF_ISOFile *	mov,
		GF_ISOTrackID	TrackID
	)

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GetNumUsedValues()

u32 GetNumUsedValues	(	GF_TrackFragmentBox *	traf,
		u32	value,
		u32	index
	)

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ComputeFragmentDefaults()

void ComputeFragmentDefaults

(

GF_TrackFragmentBox *

traf

)

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update_trun_offsets()

void update_trun_offsets	(	GF_ISOFile *	movie,
		s32	offset
	)

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UpdateRuns()

static u32 UpdateRuns ( GF_ISOFile *  movie, GF_TrackFragmentBox *  traf  )

static

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get_earliest_cts_following()

static s32 get_earliest_cts_following ( GF_TrackFragmentBox *  traf, u32  trun_idx, u32  samp_idx  )

static

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moof_get_sap_info()

static u32 moof_get_sap_info ( GF_MovieFragmentBox *  moof, GF_ISOTrackID  refTrackID, u32 *  sap_delta, Bool *  starts_with_sap  )

static

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moof_get_duration()

u32 moof_get_duration	(	GF_MovieFragmentBox *	moof,
		GF_ISOTrackID	refTrackID
	)

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moof_get_earliest_cts()

static u64 moof_get_earliest_cts ( GF_MovieFragmentBox *  moof, GF_ISOTrackID  refTrackID  )

static

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gf_isom_write_compressed_box()

GF_Err gf_isom_write_compressed_box	(	GF_ISOFile *	mov,
		GF_Box *	root_box,
		u32	repl_type,
		GF_BitStream *	bs,
		u32 *	box_csize
	)

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flush_ref_samples()

void flush_ref_samples	(	GF_ISOFile *	movie,
		u64 *	out_seg_size,
		Bool	is_last_moof
	)

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gf_bs_grow()

GF_Err gf_bs_grow	(	GF_BitStream *	bs,
		u32	addSize
	)

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StoreFragment()

static GF_Err StoreFragment ( GF_ISOFile *  movie, Bool  load_mdat_only, s32  data_offset_diff, u32 *  moof_size, Bool  reassign_bs  )

static

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sidx_rewrite()

static GF_Err sidx_rewrite ( GF_SegmentIndexBox *  sidx, GF_BitStream *  bs, u64  start_pos, GF_SubsegmentIndexBox *  ssix  )

static

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gf_isom_write_styp()

static GF_Err gf_isom_write_styp ( GF_ISOFile *  movie, Bool  last_segment  )

static

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get_presentation_time()

static u64 get_presentation_time ( u64  media_time, s32  ts_shift  )

static

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compute_seg_size()

static void compute_seg_size ( GF_ISOFile *  movie, u64 *  out_seg_size  )

static

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moof_get_first_sap_end()

static u32 moof_get_first_sap_end ( GF_MovieFragmentBox *  moof )

static

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estimate_next_moof_earliest_presentation_time()

static u64 estimate_next_moof_earliest_presentation_time ( u64  ref_track_decode_time, s32  ts_shift, u32  refTrackID, GF_ISOFile *  movie  )

static

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gf_isom_flush_sidx()

GF_EXPORT GF_Err gf_isom_flush_sidx	(	GF_ISOFile *	movie,
		u32	sidx_max_size,
		Bool	force_v1
	)

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gf_isom_close_fragments()

GF_EXPORT GF_Err gf_isom_close_fragments

(

GF_ISOFile *

movie

)

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gf_isom_set_fragment_template()

GF_Err gf_isom_set_fragment_template	(	GF_ISOFile *	movie,
		u8 *	tpl_data,
		u32	tpl_size,
		Bool *	has_tfdt,
		GF_SegmentIndexBox **	out_sidx
	)

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gf_isom_fragment_add_sample_ex()

GF_EXPORT GF_Err gf_isom_fragment_add_sample_ex	(	GF_ISOFile *	movie,
		GF_ISOTrackID	TrackID,
		const GF_ISOSample *	sample,
		u32	DescIndex,
		u32	Duration,
		u8	PaddingBits,
		u16	DegradationPriority,
		Bool	redundant_coding,
		void **	ref,
		u32	ref_offset
	)

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gf_isom_fragment_append_data_ex()

GF_EXPORT GF_Err gf_isom_fragment_append_data_ex	(	GF_ISOFile *	movie,
		GF_ISOTrackID	TrackID,
		u8 *	data,
		u32	data_size,
		u8	PaddingBits,
		void **	ref,
		u32	ref_offset
	)

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gf_isom_set_emsg()

GF_Err gf_isom_set_emsg	(	GF_ISOFile *	movie,
		u8 *	data,
		u32	size
	)

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isom_sample_refs_push()

GF_Err isom_sample_refs_push	(	GF_SampleReferences *	sref,
		s32	refID,
		u32	nb_refs,
		s32 *	refs
	)

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