This file handles HLS Streaming functionality for AAMP player
More...

#include <memory>
#include "StreamAbstractionAAMP.h"
#include "mediaprocessor.h"
#include <sys/time.h>
#include "HlsDrmBase.h"

Include dependency graph for fragmentcollector_hls.h:

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Data Structures
struct	HlsProtectionInfo
	HlsStreamInfo structure for stream related information. More...

struct	HlsStreamInfo
	HlsStreamInfo structure for stream related information. More...

struct	MediaInfo
	MediaInfo structure for Media related information. More...

struct	IndexNode
	IndexNode structure for Node/DRM Index. More...

struct	KeyTagStruct
	KeyTagStruct structure to store all Keytags with Hash. More...

struct	DiscontinuityIndexNode
	Index Node structure for Discontinuity Index. More...

class	TrackState
	State Machine for each Media Track. More...

class	StreamAbstractionAAMP_HLS
	HLS Stream handler class. More...

Macros
#define	MAX_PROFILE 128

#define	FOG_FRAG_BW_IDENTIFIER "bandwidth-"

#define	FOG_FRAG_BW_IDENTIFIER_LEN 10

#define	FOG_FRAG_BW_DELIMITER "-"

#define	CHAR_CR 0x0d

#define	CHAR_LF 0x0a

#define	BOOLSTR(boolValue) (boolValue?"true":"false")

#define	PLAYLIST_TIME_DIFF_THRESHOLD_SECONDS (0.1f)

#define	MAX_MANIFEST_DOWNLOAD_RETRY 3

#define	MAX_DELAY_BETWEEN_PLAYLIST_UPDATE_MS (6*1000)

#define	MIN_DELAY_BETWEEN_PLAYLIST_UPDATE_MS (500)

#define	DRM_IV_LEN 16

#define	MAX_SEQ_NUMBER_LAG_COUNT 50

#define	MAX_SEQ_NUMBER_DIFF_FOR_SEQ_NUM_BASED_SYNC 2

#define	MAX_PLAYLIST_REFRESH_FOR_DISCONTINUITY_CHECK_EVENT 5

#define	MAX_PLAYLIST_REFRESH_FOR_DISCONTINUITY_CHECK_LIVE 3

#define	MAX_PDT_DISCONTINUITIY_DELTA_LIMIT 1.0f

Typedefs
typedef struct HlsProtectionInfo	HlsProtectionInfo

typedef HlsStreamInfo	HlsStreamInfo

typedef struct MediaInfo	MediaInfo

Enumerations
enum	DrmKeyMethod
	Enum for various EXT-X-KEY:METHOD= values. More...

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This file handles HLS Streaming functionality for AAMP player

DESCRIPTION

This file handles HLS Streaming functionality for AAMP player. Class/structures required for hls fragment collector is defined here.
Major functionalities include a) Manifest / fragment collector and trick play handling b) DRM Initialization / Key acquisition c) Decrypt and inject fragments for playback d) Synchronize audio/video tracks .

Definition in file fragmentcollector_hls.h.

Data Structure Documentation

◆ HlsProtectionInfo

struct HlsProtectionInfo

HlsStreamInfo structure for stream related information.

Definition at line 69 of file fragmentcollector_hls.h.

Collaboration diagram for HlsProtectionInfo:

Data Fields
struct DrmSessionParams *	drmData	Session data
HlsProtectionInfo *	next	pointer to access next element of Queue

◆ MediaInfo

struct MediaInfo

MediaInfo structure for Media related information.

Definition at line 97 of file fragmentcollector_hls.h.

Collaboration diagram for MediaInfo:

Data Fields
MediaType	type	Media Type
const char *	group_id	Group ID
const char *	name	Name of Media
const char *	language	Language
bool	autoselect	AutoSelect
bool	isDefault	IsDefault
const char *	uri	URI Information
StreamOutputFormat	audioFormat	Audio codec format
int	channels	Channel
const char *	instreamID	StreamID
bool	forced	Forced Flag
const char *	characteristics	Characteristics
bool	isCC	True if the text track is closed-captions

◆ IndexNode

struct IndexNode

IndexNode structure for Node/DRM Index.

Definition at line 119 of file fragmentcollector_hls.h.

Collaboration diagram for IndexNode:

Data Fields
double	completionTimeSecondsFromStart	Time of index from start
const char *	pFragmentInfo	Fragment Information pointer
int	drmMetadataIdx	DRM Index for Fragment
const char *	initFragmentPtr	Fragmented MP4 specific pointer to associated (preceding) initialization fragment

◆ DiscontinuityIndexNode

struct DiscontinuityIndexNode

Index Node structure for Discontinuity Index.

Definition at line 145 of file fragmentcollector_hls.h.

Collaboration diagram for DiscontinuityIndexNode:

Data Fields
int	fragmentIdx	Idx of fragment in index table
double	position	Time of index from start
double	fragmentDuration	Fragment duration of current discontinuity index
double	discontinuityPDT	Program Date time value

Macro Definition Documentation

◆ MAX_SEQ_NUMBER_LAG_COUNT

#define MAX_SEQ_NUMBER_LAG_COUNT 50

Configured sequence number max count to avoid continuous looping for an edge case scenario, which leads crash due to hung

Definition at line 57 of file fragmentcollector_hls.h.

◆ MAX_SEQ_NUMBER_DIFF_FOR_SEQ_NUM_BASED_SYNC

#define MAX_SEQ_NUMBER_DIFF_FOR_SEQ_NUM_BASED_SYNC 2

Maximum difference in sequence number to sync tracks using sequence number.

Definition at line 58 of file fragmentcollector_hls.h.

◆ MAX_PLAYLIST_REFRESH_FOR_DISCONTINUITY_CHECK_EVENT

#define MAX_PLAYLIST_REFRESH_FOR_DISCONTINUITY_CHECK_EVENT 5

Maximum playlist refresh count for discontinuity check for TSB/cDvr

Definition at line 59 of file fragmentcollector_hls.h.

◆ MAX_PLAYLIST_REFRESH_FOR_DISCONTINUITY_CHECK_LIVE

#define MAX_PLAYLIST_REFRESH_FOR_DISCONTINUITY_CHECK_LIVE 3

Maximum playlist refresh count for discontinuity check for live without TSB

Definition at line 60 of file fragmentcollector_hls.h.

◆ MAX_PDT_DISCONTINUITIY_DELTA_LIMIT

#define MAX_PDT_DISCONTINUITIY_DELTA_LIMIT 1.0f

maximum audio/video track PDT delta to determine discontiuity using PDT

Definition at line 61 of file fragmentcollector_hls.h.

Enumeration Type Documentation

◆ DrmKeyMethod

enum DrmKeyMethod

Enum for various EXT-X-KEY:METHOD= values.

Enumerator
eDRM_KEY_METHOD_NONE	DRM key is none
eDRM_KEY_METHOD_AES_128	DRM key is AES 128 Method
eDRM_KEY_METHOD_SAMPLE_AES	DRM key is Sample AES method
eDRM_KEY_METHOD_SAMPLE_AES_CTR	DRM key is Sample AES CTR method
eDRM_KEY_METHOD_UNKNOWN	DRM key is unkown method

Definition at line 157 of file fragmentcollector_hls.h.

Data Structures

Macros

Typedefs

Enumerations

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