org.red5.codec

Class AbstractVideo

java.lang.Object

org.red5.codec.AbstractVideo

All Implemented Interfaces:

IVideoStreamCodec, IoConstants

Direct Known Subclasses:

AVCVideo, ScreenVideo, ScreenVideo2, SorensonVideo

public class AbstractVideo
extends Object
implements IVideoStreamCodec, IoConstants

Nested Class Summary

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

IVideoStreamCodec.FrameData

Field Summary

Fields

Modifier and Type	Field and Description
protected CopyOnWriteArrayList<IVideoStreamCodec.FrameData>	keyframes Storage for key frames
protected int	keyframeTimestamp Current timestamp for the stored keyframe

Fields inherited from interface org.red5.codec.IVideoStreamCodec

FLV_FRAME_KEY

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

Constructor Summary

Constructors

Constructor and Description
AbstractVideo()

Method Summary

Modifier and Type	Method and 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 idx) Gets data of interframe with the specified index.
org.apache.mina.core.buffer.IoBuffer	getKeyframe() Returns keyframe data.
IVideoStreamCodec.FrameData[]	getKeyframes() Returns all the keyframe data.
String	getName()
int	getNumInterframes() Returns the number of interframes collected from last keyframe.
void	reset() Reset the codec to its initial state.

Methods inherited from class java.lang.Object

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

Field Detail

keyframeTimestamp

protected int keyframeTimestamp

Current timestamp for the stored keyframe

keyframes

protected final CopyOnWriteArrayList<IVideoStreamCodec.FrameData> keyframes

Storage for key frames

Constructor Detail

AbstractVideo

public AbstractVideo()

Method Detail

getName

public String getName()

Specified by:

getName in interface IVideoStreamCodec

Returns:

the name of the video codec.

reset

public void reset()

Description copied from interface: IVideoStreamCodec

Reset the codec to its initial state.

Specified by:

reset in interface IVideoStreamCodec

canDropFrames

public boolean canDropFrames()

Description copied from interface: IVideoStreamCodec

Check if the codec supports frame dropping.

Specified by:

canDropFrames in interface IVideoStreamCodec

Returns:

if the codec supports frame dropping.

canHandleData

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

Description copied from interface: IVideoStreamCodec

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

Specified by:

canHandleData in interface IVideoStreamCodec

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)

Description copied from interface: IVideoStreamCodec

Update the state of the codec with the passed data.

Specified by:

addData in interface IVideoStreamCodec

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)

Description copied from interface: IVideoStreamCodec

Update the state of the codec with the passed data.

Specified by:

addData in interface IVideoStreamCodec

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()

Description copied from interface: IVideoStreamCodec

Returns information used to configure the decoder.

Specified by:

getDecoderConfiguration in interface IVideoStreamCodec

Returns:

the data for decoder setup

getKeyframe

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

Returns keyframe data.

Specified by:

getKeyframe in interface IVideoStreamCodec

Returns:

the data for a keyframe

getKeyframes

public IVideoStreamCodec.FrameData[] getKeyframes()

Returns all the keyframe data.

Specified by:

getKeyframes in interface IVideoStreamCodec

Returns:

array of keyframe data

getNumInterframes

public int getNumInterframes()

Description copied from interface: IVideoStreamCodec

Returns the number of interframes collected from last keyframe.

Specified by:

getNumInterframes in interface IVideoStreamCodec

Returns:

number of interframes

getInterframe

public IVideoStreamCodec.FrameData getInterframe(int idx)

Description copied from interface: IVideoStreamCodec

Gets data of interframe with the specified index.

Specified by:

getInterframe in interface IVideoStreamCodec

Parameters:

idx - of interframe

Returns:

data of the interframe or null if index is not valid