CDVDVideoCodecWebCodecs Class Reference

#include <DVDVideoCodecWebCodecs.h>

Inheritance diagram for CDVDVideoCodecWebCodecs:

Public Member Functions
	CDVDVideoCodecWebCodecs (CProcessInfo &processInfo)
	~CDVDVideoCodecWebCodecs () override
bool	Open (CDVDStreamInfo &hints, CDVDCodecOptions &options) override
bool	AddData (const DemuxPacket &packet) override
void	Reset () override
VCReturn	GetPicture (VideoPicture *pVideoPicture) override
const char *	GetName () override
unsigned	GetConvergeCount () override
bool	GetCodecStats (double &pts, int &droppedFrames, int &skippedPics) override
void	SetCodecControl (int flags) override
void	Reopen () override
Public Member Functions inherited from CDVDVideoCodec
	CDVDVideoCodec (CProcessInfo &processInfo)
virtual	~CDVDVideoCodec ()=default
virtual bool	Reconfigure (CDVDStreamInfo &hints)
virtual void	SetSpeed (int iSpeed)
virtual unsigned	GetAllowedReferences ()

Static Public Member Functions
static std::unique_ptr< CDVDVideoCodec >	Create (CProcessInfo &processInfo)
static bool	Register ()

Additional Inherited Members
Public Types inherited from CDVDVideoCodec
enum	VCReturn {   VC_NONE = 0 , VC_ERROR , VC_FATAL , VC_BUFFER ,   VC_PICTURE , VC_FLUSHED , VC_NOBUFFER , VC_REOPEN ,   VC_EOF }
Protected Attributes inherited from CDVDVideoCodec
CProcessInfo &	m_processInfo

Constructor & Destructor Documentation

CDVDVideoCodecWebCodecs()

CDVDVideoCodecWebCodecs::CDVDVideoCodecWebCodecs ( CProcessInfo & processInfo )

explicit

~CDVDVideoCodecWebCodecs()

CDVDVideoCodecWebCodecs::~CDVDVideoCodecWebCodecs ( )

override

Member Function Documentation

AddData()

bool CDVDVideoCodecWebCodecs::AddData ( const DemuxPacket & packet )

overridevirtual

add data, decoder has to consume the entire packet returns true if the packet was consumed or if resubmitting it is useless

Implements CDVDVideoCodec.

Create()

std::unique_ptr< CDVDVideoCodec > CDVDVideoCodecWebCodecs::Create ( CProcessInfo & processInfo )

static

GetCodecStats()

bool CDVDVideoCodecWebCodecs::GetCodecStats ( double & pts, int & droppedFrames, int & skippedPics )

overridevirtual

For calculation of dropping requirements player asks for some information.

• pts : right after decoder, used to detect gaps (dropped frames in decoder)
• droppedFrames : indicates if decoder has dropped a frame -1 means that decoder has no info on this.
• skippedPics : indicates if postproc has skipped a already decoded picture -1 means that decoder has no info on this.

If codec does not implement this method, pts of decoded frame at input video player is used. In case decoder does post-proc and de-interlacing there may be quite some frames queued up between exit decoder and entry player.

Reimplemented from CDVDVideoCodec.

GetConvergeCount()

unsigned CDVDVideoCodecWebCodecs::GetConvergeCount ( )

overridevirtual

How many packets should player remember, so codec can recover should something cause it to flush outside of players control

Reimplemented from CDVDVideoCodec.

GetName()

const char * CDVDVideoCodecWebCodecs::GetName ( )

inlineoverridevirtual

should return codecs name

Implements CDVDVideoCodec.

GetPicture()

CDVDVideoCodec::VCReturn CDVDVideoCodecWebCodecs::GetPicture ( VideoPicture * pVideoPicture )

overridevirtual

GetPicture controls decoding. Player calls it on every cycle it can signal a picture, request a buffer, or return none, if nothing applies the data is valid until the next GetPicture return VC_PICTURE

Implements CDVDVideoCodec.

Open()

bool CDVDVideoCodecWebCodecs::Open ( CDVDStreamInfo & hints, CDVDCodecOptions & options )

overridevirtual

Open the decoder, returns true on success Decoders not capable of running multiple instances should return false in case there is already a instance open

Implements CDVDVideoCodec.

Register()

bool CDVDVideoCodecWebCodecs::Register ( )

static

Reopen()

void CDVDVideoCodecWebCodecs::Reopen ( )

overridevirtual

Re-open the decoder. Decoder request to re-open

Reimplemented from CDVDVideoCodec.

Reset()

void CDVDVideoCodecWebCodecs::Reset ( )

overridevirtual

Reset the decoder. Should be the same as calling Dispose and Open after each other

Implements CDVDVideoCodec.

SetCodecControl()

void CDVDVideoCodecWebCodecs::SetCodecControl ( int flags )

overridevirtual

Codec can be informed by player with the following flags:

DVD_CODEC_CTRL_NO_POSTPROC : if speed is not normal the codec can switch off postprocessing and de-interlacing

DVD_CODEC_CTRL_HURRY : codecs may do postprocessing and de-interlacing. If video buffers in RenderManager are about to run dry, this is signaled to codec. Codec can wait for post-proc to be finished instead of returning empty and getting another packet.

DVD_CODEC_CTRL_DRAIN : instruct decoder to deliver last pictures without requesting new packets

DVD_CODEC_CTRL_DROP : this packet is going to be dropped. decoder is free to use it for decoding

Reimplemented from CDVDVideoCodec.

---

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

• DVDVideoCodecWebCodecs.h
• DVDVideoCodecWebCodecs.cpp