fragmentcollector_hls.cpp File Reference

#include "iso639map.h"
#include "fragmentcollector_hls.h"
#include "_base64.h"
#include "base16.h"
#include <algorithm>
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "priv_aamp.h"
#include <pthread.h>
#include <signal.h>
#include <semaphore.h>
#include <math.h>
#include <stdarg.h>
#include <ctype.h>
#include <errno.h>
#include <openssl/sha.h>
#include <set>
#include <vector>
#include <string>
#include "HlsDrmBase.h"
#include "AampCacheHandler.h"
#include "webvttParser.h"
#include "SubtecFactory.hpp"
#include "tsprocessor.h"
#include "isobmffprocessor.h"
#include "AampUtils.h"
#include "AampVanillaDrmHelper.h"

Include dependency graph for fragmentcollector_hls.cpp:

Go to the source code of this file.

Data Structures
struct	DrmMetadata
	AVE drm metadata extracted from EXT-X-FAXS-CM. More...
struct	DrmMetadataNode

Macros
#define	DRM_SHA1_HASH_LEN   40
#define	IS_FOR_IFRAME(rate, type)   ((type == eTRACK_VIDEO) && (rate != AAMP_NORMAL_PLAY_RATE))
#define	UseProgramDateTimeIfAvailable()   (ISCONFIGSET(eAAMPConfig_HLSAVTrackSyncUsingStartTime) || aamp->mIsVSS)

Functions
static size_t	FindLineLength (const char *ptr)
static bool	startswith (const char **pstring, const char *prefix)
static bool	startswith (char **pstring, const char *prefix)
static bool	AttributeNameMatch (const char *attrNamePtr, const char *targetAttrNameCString)
static bool	SubStringMatch (const char *srcStart, const char *srcFin, const char *cstring)
static const char *	GetAttributeValueString (char *valuePtr, char *fin)
static void	ParseKeyAttributeCallback (char *attrName, char *delimEqual, char *fin, void *arg)
static void	ParseTileInfCallback (char *attrName, char *delimEqual, char *fin, void *arg)
static void	ParseXStartAttributeCallback (char *attrName, char *delimEqual, char *fin, void *arg)
static void	ParseStreamInfCallback (char *attrName, char *delimEqual, char *fin, void *arg)
static void	ParseMediaAttributeCallback (char *attrName, char *delimEqual, char *fin, void *arg)
static char *	mystrpbrk (char *ptr)
static void	ParseAttrList (char *attrName, void(*cb)(char *attrName, char *delim, char *fin, void *context), void *context)
static double	ParseXStartTimeOffset (const char *ptr)
static void *	TrackPLDownloader (void *arg)
static void	InitiateDrmProcess (PrivateInstanceAAMP *aamp)
static void	setupStreamInfo (struct HlsStreamInfo *streamInfo, int streamNo)
static double	GetCompletionTimeForFragment (const TrackState *trackState, long long mediaSequenceNumber)
static char *	GetNextLineStart (char *ptr)
static StreamOutputFormat	GetFormatFromFragmentExtension (TrackState *trackState)
static void *	CachePlaylistThreadFunction (void *This)
static void *	FragmentCollector (void *arg)
static bool	isThumbnailStream (const struct HlsStreamInfo *streamInfo)
static std::vector< TileInfo >	IndexThumbnails (char *ptr)

Variables
static const int	DEFAULT_STREAM_WIDTH = 720
static const int	DEFAULT_STREAM_HEIGHT = 576
static const double	DEFAULT_STREAM_FRAMERATE = 25.0
static const ProfilerBucketType	mediaTrackBucketTypes [4]
	Variable initialization for media profiler buckets. More...
static const ProfilerBucketType	mediaTrackDecryptBucketTypes [4]
	Variable initialization for media decrypt buckets. More...

yes

Fragment Collect file includes class implementation for handling HLS streaming of AAMP player. Various functionality like manifest download , fragment collection, DRM initialization , synchronizing audio / video media of the stream, trick play handling etc are handled in this file .

Definition in file fragmentcollector_hls.cpp.

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Data Structure Documentation

DrmMetadata

struct DrmMetadata

AVE drm metadata extracted from EXT-X-FAXS-CM.

Definition at line 82 of file fragmentcollector_hls.cpp.

Collaboration diagram for DrmMetadata:

Data Fields
unsigned char *	metadataPtr
size_t	metadataSize

DrmMetadataNode

struct DrmMetadataNode

Definition at line 87 of file fragmentcollector_hls.cpp.

Collaboration diagram for DrmMetadataNode:

Data Fields
DrmMetadata	metaData
int	deferredInterval
long long	drmKeyReqTime
char *	sha1Hash

Function Documentation

ParseAttrList()

static void ParseAttrList ( char *  attrName, void(*)(char *attrName, char *delim, char *fin, void *context)  cb, void *  context  )

static

Parameters

attrName

pointer to HLS Attribute List, as a NUL-terminated CString

Definition at line 606 of file fragmentcollector_hls.cpp.

Variable Documentation

mediaTrackBucketTypes

const ProfilerBucketType mediaTrackBucketTypes[4]

static

Initial value:

=
        { PROFILE_BUCKET_FRAGMENT_VIDEO, PROFILE_BUCKET_FRAGMENT_AUDIO, PROFILE_BUCKET_FRAGMENT_SUBTITLE, PROFILE_BUCKET_FRAGMENT_AUXILIARY }

Variable initialization for media profiler buckets.

Definition at line 112 of file fragmentcollector_hls.cpp.

mediaTrackDecryptBucketTypes

const ProfilerBucketType mediaTrackDecryptBucketTypes[4]

static

Initial value:

=
        { PROFILE_BUCKET_DECRYPT_VIDEO, PROFILE_BUCKET_DECRYPT_AUDIO, PROFILE_BUCKET_DECRYPT_SUBTITLE, PROFILE_BUCKET_DECRYPT_AUXILIARY}

Variable initialization for media decrypt buckets.

Definition at line 115 of file fragmentcollector_hls.cpp.