CDVDDemuxUtils Class Reference

#include <DVDDemuxUtils.h>

Static Public Member Functions
static void	FreeDemuxPacket (DemuxPacket *pPacket)
static DemuxPacket *	AllocateDemuxPacket (int iDataSize=0)
static DemuxPacket *	AllocateDemuxPacket (unsigned int iDataSize, unsigned int encryptedSubsampleCount)
static void	StoreSideData (DemuxPacket *pkt, AVPacket *src)
static std::vector< ChapterFFmpeg >	LoadChapters (std::span< AVChapter * > chapters)

Static Public Attributes
static constexpr std::chrono::milliseconds	KEYFRAME_OFFSET_LIMIT {1000}

Member Function Documentation

AllocateDemuxPacket() [1/2]

DemuxPacket * CDVDDemuxUtils::AllocateDemuxPacket ( int iDataSize = 0 )

static

Required number of additionally allocated bytes at the end of the input bitstream for decoding. this is mainly needed because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
Note, if the first 23 bits of the additional bytes are not 0 then damaged MPEG bitstreams could cause overread and segfault

AllocateDemuxPacket() [2/2]

DemuxPacket * CDVDDemuxUtils::AllocateDemuxPacket ( unsigned int iDataSize, unsigned int encryptedSubsampleCount )

static

FreeDemuxPacket()

void CDVDDemuxUtils::FreeDemuxPacket ( DemuxPacket * pPacket )

static

Todo

: properly handle avpkt side_data. this works around our improper use of the side_data

LoadChapters()

std::vector< ChapterFFmpeg > CDVDDemuxUtils::LoadChapters ( std::span< AVChapter * > chapters )

static

StoreSideData()

void CDVDDemuxUtils::StoreSideData ( DemuxPacket * pkt, AVPacket * src )

static

Todo

: properly handle avpkt side_data. this works around our improper use of the side_data

Member Data Documentation

KEYFRAME_OFFSET_LIMIT

std::chrono::milliseconds CDVDDemuxUtils::KEYFRAME_OFFSET_LIMIT {1000}

staticconstexpr

How far in a first chapter may start and still count as starting at zero: longer than a keyframe interval, shorter than anything worth seeking to.

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The documentation for this class was generated from the following files:

• DVDDemuxUtils.h
• DVDDemuxUtils.cpp