media_dev.h File Reference

#include <gpac/media_tools.h>
#include <gpac/ietf.h>

Include dependency graph for media_dev.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	AVC_HRD
struct	AVC_VUI
struct	AVC_SPS
struct	AVC_PPS
struct	SVC_NALUHeader
struct	AVCSliceInfo
struct	AVCSeiRecoveryPoint
struct	AVCSeiPicTiming
struct	AVCSei
struct	AVCState
struct	SVC_Extractor
struct	HEVC_SublayerPTL
struct	HEVC_ProfileTierLevel
struct	HEVC_ReferencePictureSets
struct	HEVC_SPS
struct	HEVC_PPS
struct	HEVC_RateInfo
struct	HEVC_VPS
struct	HEVC_SEI
struct	HEVCSliceInfo
struct	HEVCState
struct	QCPRateTable

Macros
#define	GF_SVC_SSPS_ID_SHIFT   16

Enumerations
enum	{   AVC_SPS_PARSED = 1, AVC_SPS_DECLARED = 1<<1, AVC_SUBSPS_PARSED = 1<<2, AVC_SUBSPS_DECLARED = 1<<3,   AVC_SPS_EXT_DECLARED = 1<<4 }
enum	{ GF_HEVC_TYPE_B = 0, GF_HEVC_TYPE_P = 1, GF_HEVC_TYPE_I = 2 }
enum	GF_DashTemplateSegmentType {   GF_DASH_TEMPLATE_SEGMENT = 0, GF_DASH_TEMPLATE_INITIALIZATION, GF_DASH_TEMPLATE_TEMPLATE, GF_DASH_TEMPLATE_INITIALIZATION_TEMPLATE,   GF_DASH_TEMPLATE_REPINDEX }

Functions
void	gf_media_get_sample_average_infos (GF_ISOFile *file, u32 Track, u32 *avgSize, u32 *MaxSize, u32 *TimeDelta, u32 *maxCTSDelta, u32 *const_duration, u32 *bandwidth)
GF_Err	gf_import_message (GF_MediaImporter *import, GF_Err e, char *format,...)
u32	gf_latm_get_value (GF_BitStream *bs)
u32	gf_media_nalu_is_start_code (GF_BitStream *bs)
u32	gf_media_nalu_next_start_code_bs (GF_BitStream *bs)
u32	gf_media_nalu_next_start_code (u8 *data, u32 data_len, u32 *sc_size)
u8	AVC_NALUType (GF_BitStream *bs)
Bool	SVC_NALUIsSlice (u8 type)
s32	gf_media_avc_read_sps (const char *sps_data, u32 sps_size, AVCState *avc, u32 subseq_sps, u32 *vui_flag_pos)
s32	gf_media_avc_read_pps (const char *pps_data, u32 pps_size, AVCState *avc)
s32	gf_media_avc_read_sps_ext (const char *spse_data, u32 spse_size)
Bool	gf_media_avc_slice_is_IDR (AVCState *avc)
Bool	gf_media_avc_slice_is_intra (AVCState *avc)
s32	gf_media_avc_parse_nalu (GF_BitStream *bs, u32 nal_hdr, AVCState *avc)
u32	gf_media_avc_reformat_sei (char *buffer, u32 nal_size, AVCState *avc)
GF_Err	gf_media_avc_change_par (GF_AVCConfig *avcc, s32 ar_n, s32 ar_d)
GF_Err	gf_media_hevc_change_par (GF_HEVCConfig *hvcc, s32 ar_n, s32 ar_d)
s32	gf_media_hevc_read_vps (char *data, u32 size, HEVCState *hevc)
s32	gf_media_hevc_read_sps (char *data, u32 size, HEVCState *hevc)
s32	gf_media_hevc_read_pps (char *data, u32 size, HEVCState *hevc)
s32	gf_media_hevc_parse_nalu (GF_BitStream *bs, HEVCState *hevc, u8 *nal_unit_type, u8 *temporal_id, u8 *layer_id)
Bool	gf_media_hevc_slice_is_intra (HEVCState *hevc)
Bool	gf_media_hevc_slice_is_IDR (HEVCState *hevc)
GP_RTPPacketizer *	gf_rtp_packetizer_create_and_init_from_file (GF_ISOFile *file, u32 TrackNum, void *cbk_obj, void(*OnNewPacket)(void *cbk, GF_RTPHeader *header), void(*OnPacketDone)(void *cbk, GF_RTPHeader *header), void(*OnDataReference)(void *cbk, u32 payload_size, u32 offset_from_orig), void(*OnData)(void *cbk, char *data, u32 data_size, Bool is_head), u32 Path_MTU, u32 max_ptime, u32 default_rtp_rate, u32 flags, u8 PayloadID, Bool copy_media, u32 InterleaveGroupID, u8 InterleaveGroupPriority)
void	gf_media_format_ttxt_sdp (GP_RTPPacketizer *builder, char *payload_name, char *sdpLine, GF_ISOFile *file, u32 track)
GF_Err	gf_media_mpd_format_segment_name (GF_DashTemplateSegmentType seg_type, Bool is_bs_switching, char *segment_name, const char *output_file_name, const char *rep_id, const char *seg_rad_name, const char *seg_ext, u64 start_time, u32 bandwidth, u32 segment_number, Bool use_segment_timeline)
GF_WebVTTParser *	gf_webvtt_parser_new ()
GF_Err	gf_webvtt_parser_init (GF_WebVTTParser *parser, const char *input_file, void *user, GF_Err(*report_message)(void *, GF_Err, char *, const char *), void(*on_sample_parsed)(void *, GF_WebVTTSample *), void(*on_header_parsed)(void *, const char *))
GF_Err	gf_webvtt_parser_parse (GF_WebVTTParser *parser, u32 duration)
u64	gf_webvtt_parser_last_duration (GF_WebVTTParser *parser)
void	gf_webvtt_parser_del (GF_WebVTTParser *parser)
void	gf_webvtt_sample_del (GF_WebVTTSample *samp)
u64	gf_webvtt_sample_get_start (GF_WebVTTSample *samp)
GF_Err	gf_webvtt_dump_header (FILE *dump, GF_ISOFile *file, u32 track, u32 index)
GF_Err	gf_webvtt_dump_sample (FILE *dump, GF_WebVTTSample *samp)
GF_Err	gf_webvtt_parser_dump_done (GF_WebVTTParser *parser, u32 duration)

---

Data Structure Documentation

struct AVC_HRD

Collaboration diagram for AVC_HRD:

Data Fields
u8	cpb_removal_delay_length_minus1
u8	dpb_output_delay_length_minus1
u8	time_offset_length

struct AVC_VUI

Collaboration diagram for AVC_VUI:

Data Fields
s32	timing_info_present_flag
u32	num_units_in_tick
u32	time_scale
s32	fixed_frame_rate_flag
u32	par_num
u32	par_den
Bool	nal_hrd_parameters_present_flag
Bool	vcl_hrd_parameters_present_flag
AVC_HRD	hrd
Bool	pic_struct_present_flag

struct AVC_SPS

Collaboration diagram for AVC_SPS:

Data Fields
s32	profile_idc
s32	level_idc
s32	prof_compat
s32	log2_max_frame_num
u32	poc_type
u32	poc_cycle_length
s32	log2_max_poc_lsb
s32	delta_pic_order_always_zero_flag
s32	offset_for_non_ref_pic
s32	offset_for_top_to_bottom_field
Bool	frame_mbs_only_flag
u8	chroma_format
u8	luma_bit_depth_m8
u8	chroma_bit_depth_m8
s16	offset_for_ref_frame[256]
u32	width
u32	height
AVC_VUI	vui
u32	state
u32	nb_ei
u32	nb_ep
u32	nb_eb

struct AVC_PPS

Collaboration diagram for AVC_PPS:

Data Fields
s32	id
s32	sps_id
s32	pic_order_present
s32	redundant_pic_cnt_present
u32	slice_group_count
u32	status

struct SVC_NALUHeader

Collaboration diagram for SVC_NALUHeader:

Data Fields
s32	idr_pic_flag
u8	temporal_id
u8	priority_id
u8	dependency_id
u8	quality_id

struct AVCSliceInfo

Collaboration diagram for AVCSliceInfo:

Data Fields
u8	nal_ref_idc
u8	nal_unit_type
u8	field_pic_flag
u8	bottom_field_flag
u32	frame_num
u32	idr_pic_id
u32	poc_lsb
u32	slice_type
s32	delta_poc_bottom
s32	delta_poc[2]
s32	redundant_pic_cnt
s32	poc
u32	poc_msb
u32	poc_msb_prev
u32	poc_lsb_prev
u32	frame_num_prev
s32	frame_num_offset
s32	frame_num_offset_prev
AVC_SPS *	sps
AVC_PPS *	pps
SVC_NALUHeader	NalHeader

struct AVCSeiRecoveryPoint

Collaboration diagram for AVCSeiRecoveryPoint:

Data Fields
u32	frame_cnt
u8	exact_match_flag
u8	broken_link_flag
u8	changing_slice_group_idc
u8	valid

struct AVCSeiPicTiming

Collaboration diagram for AVCSeiPicTiming:

Data Fields
u8	pic_struct

struct AVCSei

Collaboration diagram for AVCSei:

Data Fields
AVCSeiRecoveryPoint	recovery_point
AVCSeiPicTiming	pic_timing

struct AVCState

Collaboration diagram for AVCState:

Data Fields
AVC_SPS	sps[32]
s8	sps_active_idx
AVC_PPS	pps[255]
AVCSliceInfo	s_info
AVCSei	sei
Bool	is_svc

struct SVC_Extractor

Collaboration diagram for SVC_Extractor:

Data Fields
u32	NALUnitHeader
u8	track_ref_index
s8	sample_offset
u32	data_offset
u32	data_length

struct HEVC_SublayerPTL

Collaboration diagram for HEVC_SublayerPTL:

Data Fields
Bool	profile_present_flag
Bool	level_present_flag
Bool	tier_flag
u8	profile_space
u8	profile_idc
u32	profile_compatibility_flag
u8	level_idc

struct HEVC_ProfileTierLevel

Collaboration diagram for HEVC_ProfileTierLevel:

Data Fields
u8	profile_space
u8	tier_flag
u8	profile_idc
u8	level_idc
u32	profile_compatibility_flag
Bool	general_progressive_source_flag
Bool	general_interlaced_source_flag
Bool	general_non_packed_constraint_flag
Bool	general_frame_only_constraint_flag
u64	general_reserved_44bits
HEVC_SublayerPTL	sub_ptl[8]

struct HEVC_ReferencePictureSets

Collaboration diagram for HEVC_ReferencePictureSets:

Data Fields
u32	num_negative_pics
u32	num_positive_pics
s32	delta_poc[16]

struct HEVC_SPS

Collaboration diagram for HEVC_SPS:

Data Fields
s32	id
s32	vps_id
u32	state
u32	crc
u32	width
u32	height
HEVC_ProfileTierLevel	ptl
u8	chroma_format_idc
Bool	cw_flag
u32	cw_left
u32	cw_right
u32	cw_top
u32	cw_bottom
u8	bit_depth_luma
u8	bit_depth_chroma
u8	log2_max_pic_order_cnt_lsb
Bool	separate_colour_plane_flag
u32	max_CU_width
u32	max_CU_height
u32	max_CU_depth
u32	bitsSliceSegmentAddress
u32	num_short_term_ref_pic_sets
u32	num_long_term_ref_pic_sps
HEVC_ReferencePictureSets	rps[64]
Bool	aspect_ratio_info_present_flag
Bool	long_term_ref_pics_present_flag
Bool	temporal_mvp_enable_flag
Bool	sample_adaptive_offset_enabled_flag
u8	sar_idc
u16	sar_width
u16	sar_height
Bool	has_timing_info
u32	num_units_in_tick
u32	time_scale
Bool	poc_proportional_to_timing_flag
u32	num_ticks_poc_diff_one_minus1

struct HEVC_PPS

Collaboration diagram for HEVC_PPS:

Data Fields
s32	id
u32	sps_id
u32	state
u32	crc
Bool	dependent_slice_segments_enabled_flag
Bool	tiles_enabled_flag
Bool	uniform_spacing_flag
u32	num_extra_slice_header_bits
u32	num_ref_idx_l0_default_active
u32	num_ref_idx_l1_default_active
Bool	slice_segment_header_extension_present_flag
Bool	output_flag_present_flag
Bool	lists_modification_present_flag
Bool	cabac_init_present_flag
Bool	weighted_pred_flag
Bool	weighted_bipred_flag
Bool	slice_chroma_qp_offsets_present_flag
Bool	deblocking_filter_override_enabled_flag
Bool	loop_filter_across_slices_enabled_flag
Bool	entropy_coding_sync_enabled_flag
Bool	loop_filter_across_tiles_enabled_flag
u32	num_tile_columns
u32	num_tile_rows
u32	column_width[22]
u32	row_height[20]

struct HEVC_RateInfo

Collaboration diagram for HEVC_RateInfo:

Data Fields
u16	avg_bit_rate
u16	max_bit_rate
u16	avg_pic_rate
u8	constand_pic_rate_idc

struct HEVC_VPS

Collaboration diagram for HEVC_VPS:

Data Fields
s32	id
u32	state
u32	crc
u8	max_sub_layer
Bool	temporal_id_nesting
HEVC_ProfileTierLevel	ptl
HEVC_SublayerPTL	sub_ptl[8]
HEVC_RateInfo	rates[8]

struct HEVC_SEI

Collaboration diagram for HEVC_SEI:

Data Fields
AVCSeiRecoveryPoint	recovery_point
AVCSeiPicTiming	pic_timing

struct HEVCSliceInfo

Collaboration diagram for HEVCSliceInfo:

Data Fields
u8	nal_unit_type
s8	temporal_id
u32	frame_num
u32	poc_lsb
u32	slice_type
s32	redundant_pic_cnt
s32	poc
u32	poc_msb
u32	poc_msb_prev
u32	poc_lsb_prev
u32	frame_num_prev
s32	frame_num_offset
s32	frame_num_offset_prev
Bool	dependent_slice_segment_flag
Bool	first_slice_segment_in_pic_flag
u32	slice_segment_address
HEVC_SPS *	sps
HEVC_PPS *	pps

struct HEVCState

Collaboration diagram for HEVCState:

Data Fields
HEVC_SPS	sps[16]
s8	sps_active_idx
HEVC_PPS	pps[64]
HEVC_VPS	vps[16]
HEVCSliceInfo	s_info
HEVC_SEI	sei
Bool	is_svc

struct QCPRateTable

Collaboration diagram for QCPRateTable:

Data Fields
u8	rate_idx
u8	pck_size

Macro Definition Documentation

#define GF_SVC_SSPS_ID_SHIFT   16

Enumeration Type Documentation

anonymous enum

Enumerator
AVC_SPS_PARSED
AVC_SPS_DECLARED
AVC_SUBSPS_PARSED
AVC_SUBSPS_DECLARED
AVC_SPS_EXT_DECLARED

anonymous enum

Enumerator
GF_HEVC_TYPE_B
GF_HEVC_TYPE_P
GF_HEVC_TYPE_I

enum GF_DashTemplateSegmentType

Enumerator
GF_DASH_TEMPLATE_SEGMENT
GF_DASH_TEMPLATE_INITIALIZATION
GF_DASH_TEMPLATE_TEMPLATE
GF_DASH_TEMPLATE_INITIALIZATION_TEMPLATE
GF_DASH_TEMPLATE_REPINDEX

Function Documentation

void gf_media_get_sample_average_infos	(	GF_ISOFile *	file,
		u32	Track,
		u32 *	avgSize,
		u32 *	MaxSize,
		u32 *	TimeDelta,
		u32 *	maxCTSDelta,
		u32 *	const_duration,
		u32 *	bandwidth
	)

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GF_Err gf_import_message	(	GF_MediaImporter *	import,
		GF_Err	e,
		char *	format,
			...
	)

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u32 gf_latm_get_value

(

GF_BitStream *

bs

)

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u32 gf_media_nalu_is_start_code

(

GF_BitStream *

bs

)

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u32 gf_media_nalu_next_start_code_bs

(

GF_BitStream *

bs

)

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u32 gf_media_nalu_next_start_code	(	u8 *	data,
		u32	data_len,
		u32 *	sc_size
	)

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u8 AVC_NALUType

(

GF_BitStream *

bs

)

Bool SVC_NALUIsSlice

(

u8

type

)

s32 gf_media_avc_read_sps	(	const char *	sps_data,
		u32	sps_size,
		AVCState *	avc,
		u32	subseq_sps,
		u32 *	vui_flag_pos
	)

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s32 gf_media_avc_read_pps	(	const char *	pps_data,
		u32	pps_size,
		AVCState *	avc
	)

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s32 gf_media_avc_read_sps_ext	(	const char *	spse_data,
		u32	spse_size
	)

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Bool gf_media_avc_slice_is_IDR

(

AVCState *

avc

)

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Bool gf_media_avc_slice_is_intra

(

AVCState *

avc

)

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s32 gf_media_avc_parse_nalu	(	GF_BitStream *	bs,
		u32	nal_hdr,
		AVCState *	avc
	)

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u32 gf_media_avc_reformat_sei	(	char *	buffer,
		u32	nal_size,
		AVCState *	avc
	)

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GF_Err gf_media_avc_change_par	(	GF_AVCConfig *	avcc,
		s32	ar_n,
		s32	ar_d
	)

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GF_Err gf_media_hevc_change_par	(	GF_HEVCConfig *	hvcc,
		s32	ar_n,
		s32	ar_d
	)

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s32 gf_media_hevc_read_vps	(	char *	data,
		u32	size,
		HEVCState *	hevc
	)

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s32 gf_media_hevc_read_sps	(	char *	data,
		u32	size,
		HEVCState *	hevc
	)

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s32 gf_media_hevc_read_pps	(	char *	data,
		u32	size,
		HEVCState *	hevc
	)

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s32 gf_media_hevc_parse_nalu	(	GF_BitStream *	bs,
		HEVCState *	hevc,
		u8 *	nal_unit_type,
		u8 *	temporal_id,
		u8 *	layer_id
	)

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Bool gf_media_hevc_slice_is_intra

(

HEVCState *

hevc

)

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Bool gf_media_hevc_slice_is_IDR

(

HEVCState *

hevc

)

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GP_RTPPacketizer* gf_rtp_packetizer_create_and_init_from_file	(	GF_ISOFile *	file,
		u32	TrackNum,
		void *	cbk_obj,
		void(*)(void *cbk, GF_RTPHeader *header)	OnNewPacket,
		void(*)(void *cbk, GF_RTPHeader *header)	OnPacketDone,
		void(*)(void *cbk, u32 payload_size, u32 offset_from_orig)	OnDataReference,
		void(*)(void *cbk, char *data, u32 data_size, Bool is_head)	OnData,
		u32	Path_MTU,
		u32	max_ptime,
		u32	default_rtp_rate,
		u32	flags,
		u8	PayloadID,
		Bool	copy_media,
		u32	InterleaveGroupID,
		u8	InterleaveGroupPriority
	)

void gf_media_format_ttxt_sdp	(	GP_RTPPacketizer *	builder,
		char *	payload_name,
		char *	sdpLine,
		GF_ISOFile *	file,
		u32	track
	)

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GF_Err gf_media_mpd_format_segment_name	(	GF_DashTemplateSegmentType	seg_type,
		Bool	is_bs_switching,
		char *	segment_name,
		const char *	output_file_name,
		const char *	rep_id,
		const char *	seg_rad_name,
		const char *	seg_ext,
		u64	start_time,
		u32	bandwidth,
		u32	segment_number,
		Bool	use_segment_timeline
	)

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GF_WebVTTParser* gf_webvtt_parser_new

(

)

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GF_Err gf_webvtt_parser_init	(	GF_WebVTTParser *	parser,
		const char *	input_file,
		void *	user,
		GF_Err(*)(void *, GF_Err, char *, const char *)	report_message,
		void(*)(void *, GF_WebVTTSample *)	on_sample_parsed,
		void(*)(void *, const char *)	on_header_parsed
	)

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GF_Err gf_webvtt_parser_parse	(	GF_WebVTTParser *	parser,
		u32	duration
	)

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u64 gf_webvtt_parser_last_duration

(

GF_WebVTTParser *

parser

)

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void gf_webvtt_parser_del

(

GF_WebVTTParser *

parser

)

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void gf_webvtt_sample_del

(

GF_WebVTTSample *

samp

)

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u64 gf_webvtt_sample_get_start

(

GF_WebVTTSample *

samp

)

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GF_Err gf_webvtt_dump_header	(	FILE *	dump,
		GF_ISOFile *	file,
		u32	track,
		u32	index
	)

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GF_Err gf_webvtt_dump_sample	(	FILE *	dump,
		GF_WebVTTSample *	samp
	)

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GF_Err gf_webvtt_parser_dump_done	(	GF_WebVTTParser *	parser,
		u32	duration
	)