Package org.red5.codec

Class AVCVideo

java.lang.Object

org.red5.codec.AbstractVideo

org.red5.codec.AVCVideo

All Implemented Interfaces:

IVideoStreamCodec, IoConstants

public class AVCVideo
extends AbstractVideo

Red5 video codec for the AVC (h264) video format. Stores DecoderConfigurationRecord and last keyframe.

Author:

Tiago Jacobs (tiago@imdt.com.br), Paul Gregoire (mondain@gmail.com)

Nested Class Summary

Nested classes/interfaces inherited from interface org.red5.codec.IVideoStreamCodec

IVideoStreamCodec.FrameData

Field Summary

Fields inherited from class org.red5.codec.AbstractVideo

keyframes, keyframeTimestamp

Fields inherited from interface org.red5.io.IoConstants

AVC_PACKET_TYPE_END_OF_SEQUENCE, AVC_PACKET_TYPE_NALU, AVC_PACKET_TYPE_SEQUENCE_HEADER, FLAG_CODEC_H263, FLAG_CODEC_SCREEN, FLAG_CODEC_VP6, FLAG_FORMAT_ADPCM, FLAG_FORMAT_MP3, FLAG_FORMAT_NELLYMOSER, FLAG_FORMAT_NELLYMOSER_8_KHZ, FLAG_FORMAT_RAW, FLAG_FRAMETYPE_DISPOSABLE, FLAG_FRAMETYPE_GENERATED_KEYFRAME, FLAG_FRAMETYPE_INFO, FLAG_FRAMETYPE_INTERFRAME, FLAG_FRAMETYPE_KEYFRAME, FLAG_RATE_11_KHZ, FLAG_RATE_22_KHZ, FLAG_RATE_44_KHZ, FLAG_RATE_48_KHZ, FLAG_RATE_5_5_KHZ, FLAG_SIZE_16_BIT, FLAG_SIZE_8_BIT, FLAG_TYPE_MONO, FLAG_TYPE_STEREO, INFO_PACKET_SEEK_END, INFO_PACKET_SEEK_START, MASK_SOUND_FORMAT, MASK_SOUND_RATE, MASK_SOUND_SIZE, MASK_SOUND_TYPE, MASK_VIDEO_CODEC, MASK_VIDEO_FRAMETYPE, TYPE_AUDIO, TYPE_ENCRYPTED, TYPE_ENCRYPTED_AUDIO, TYPE_ENCRYPTED_METADATA, TYPE_ENCRYPTED_VIDEO, TYPE_METADATA, TYPE_VIDEO

Fields inherited from interface org.red5.codec.IVideoStreamCodec

FLV_FRAME_KEY

Constructor Summary

Constructors

Constructor	Description
AVCVideo()	Constructs a new AVCVideo.

Method Summary

Modifier and Type	Method	Description
boolean	addData(org.apache.mina.core.buffer.IoBuffer data)	Update the state of the codec with the passed data.
boolean	addData(org.apache.mina.core.buffer.IoBuffer data, int timestamp)	Update the state of the codec with the passed data.
boolean	canDropFrames()	Check if the codec supports frame dropping.
boolean	canHandleData(org.apache.mina.core.buffer.IoBuffer data)	Returns true if the codec knows how to handle the passed stream data.
org.apache.mina.core.buffer.IoBuffer	getDecoderConfiguration()	Returns information used to configure the decoder.
IVideoStreamCodec.FrameData	getInterframe(int index)	Gets data of interframe with the specified index.
String	getName()
int	getNumInterframes()	Returns the number of interframes collected from last keyframe.
boolean	isBufferInterframes()
void	reset()	Reset the codec to its initial state.
void	setBufferInterframes(boolean bufferInterframes)

Methods inherited from class org.red5.codec.AbstractVideo

getKeyframe, getKeyframes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AVCVideo

public AVCVideo()

Constructs a new AVCVideo.

Method Detail

getName

public String getName()

Specified by:

getName in interface IVideoStreamCodec

Overrides:

getName in class AbstractVideo

Returns:

the name of the video codec.

canDropFrames

public boolean canDropFrames()

Check if the codec supports frame dropping.

Specified by:

canDropFrames in interface IVideoStreamCodec

Overrides:

canDropFrames in class AbstractVideo

Returns:

if the codec supports frame dropping.

reset

public void reset()

Reset the codec to its initial state.

Specified by:

reset in interface IVideoStreamCodec

Overrides:

reset in class AbstractVideo

canHandleData

public boolean canHandleData(org.apache.mina.core.buffer.IoBuffer data)

Returns true if the codec knows how to handle the passed stream data.

Specified by:

canHandleData in interface IVideoStreamCodec

Overrides:

canHandleData in class AbstractVideo

Parameters:

data - some sample data to see if this codec can handle it

Returns:

can this code handle the data.

addData

public boolean addData(org.apache.mina.core.buffer.IoBuffer data)

Update the state of the codec with the passed data.

Specified by:

addData in interface IVideoStreamCodec

Overrides:

addData in class AbstractVideo

Parameters:

data - data to tell the codec we're adding

Returns:

true for success. false for error

addData

public boolean addData(org.apache.mina.core.buffer.IoBuffer data,
                       int timestamp)

Update the state of the codec with the passed data.

Specified by:

addData in interface IVideoStreamCodec

Overrides:

addData in class AbstractVideo

Parameters:

data - data to tell the codec we're adding

timestamp - time associated with the data

Returns:

true for success. false for error

getDecoderConfiguration

public org.apache.mina.core.buffer.IoBuffer getDecoderConfiguration()

Returns information used to configure the decoder.

Specified by:

getDecoderConfiguration in interface IVideoStreamCodec

Overrides:

getDecoderConfiguration in class AbstractVideo

Returns:

the data for decoder setup

getNumInterframes

public int getNumInterframes()

Returns the number of interframes collected from last keyframe.

Specified by:

getNumInterframes in interface IVideoStreamCodec

Overrides:

getNumInterframes in class AbstractVideo

Returns:

number of interframes

getInterframe

public IVideoStreamCodec.FrameData getInterframe(int index)

Gets data of interframe with the specified index.

Specified by:

getInterframe in interface IVideoStreamCodec

Overrides:

getInterframe in class AbstractVideo

Parameters:

index - of interframe

Returns:

data of the interframe or null if index is not valid

isBufferInterframes

public boolean isBufferInterframes()

setBufferInterframes

public void setBufferInterframes(boolean bufferInterframes)