com.aliyun.svideosdk.multirecorder.config

Class AliyunVideoRecorderConfig.Builder

java.lang.Object

com.aliyun.svideosdk.multirecorder.config.AliyunVideoRecorderConfig.Builder

Enclosing class:

AliyunVideoRecorderConfig

public static class AliyunVideoRecorderConfig.Builder
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
AliyunVideoRecorderConfig	build()
AliyunVideoRecorderConfig.Builder	crf(int crf) Sets the CRF value.
AliyunVideoRecorderConfig.Builder	encoderFps(int encoderFps) Sets the encoding frame rate.
AliyunVideoRecorderConfig.Builder	fps(int fps) Sets the capture frame rate.
AliyunVideoRecorderConfig.Builder	gop(int gop) Sets the GOP size in frames, that is, the number of frames between two I-frames.
AliyunVideoRecorderConfig.Builder	outputPath(java.lang.String outputPath) Sets the output path
AliyunVideoRecorderConfig.Builder	videoBitrate(int videoBitrate) Sets the video bitrate.
AliyunVideoRecorderConfig.Builder	videoCodecs(VideoCodecs videoCodecs) Sets the encoder type.
AliyunVideoRecorderConfig.Builder	videoHeight(int videoHeight) Sets the height of the video, must >0
AliyunVideoRecorderConfig.Builder	videoQuality(VideoQuality videoQuality) Sets the video quality.
AliyunVideoRecorderConfig.Builder	videoWidth(int videoWidth)

Methods inherited from class java.lang.Object

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

Method Detail

videoWidth

public AliyunVideoRecorderConfig.Builder videoWidth(int videoWidth)

videoHeight

public AliyunVideoRecorderConfig.Builder videoHeight(int videoHeight)

Sets the height of the video, must >0

Parameters:

videoHeight - The height of the video

Throws:

throw - IllegalArgumentException if videoHeight is not greater than 0

outputPath

public AliyunVideoRecorderConfig.Builder outputPath(java.lang.String outputPath)

Sets the output path

Parameters:

outputPath -

Throws:

throw - IllegalArgumentException if outputPath is empty

fps

public AliyunVideoRecorderConfig.Builder fps(int fps)

Sets the capture frame rate. The value must be within the range of to . Otherwise, the default value, 30 fps, is used. The actual video frame rate may not be the same as the capture frame rate because different cameras have different processing capabilities.

Parameters:

fps - The capture frame rate.

videoCodecs

public AliyunVideoRecorderConfig.Builder videoCodecs(VideoCodecs videoCodecs)

Sets the encoder type.

Parameters:

videoCodecs - The encoder type.

See Also:

VideoCodecs

crf

public AliyunVideoRecorderConfig.Builder crf(int crf)

Sets the CRF value. Default value:

Parameters:

crf - The value must be within the range of to ]. If an invalid value is specified, the nearest threshold value is used.

encoderFps

public AliyunVideoRecorderConfig.Builder encoderFps(int encoderFps)

Sets the encoding frame rate. The value must be within the range of to . Otherwise, the default value, 30 fps, is used. The actual video frame rate may not be the same as the encoding frame rate because the actual frame rate is also affected by the capture frame rate and the camera's processing capabilities.

Parameters:

encoderFps - The encoding frame rate.

videoQuality

public AliyunVideoRecorderConfig.Builder videoQuality(VideoQuality videoQuality)

Sets the video quality. This setting affects the video bitrate.

Parameters:

videoQuality - The quality of the video.

See Also:

VideoQuality

gop

public AliyunVideoRecorderConfig.Builder gop(int gop)

Sets the GOP size in frames, that is, the number of frames between two I-frames. In hardware encoders, the GOP is measured in seconds, that is, the time interval between two I-frames. The actual GOP is calculated by dividing the GOP size in frames by the frame rate and rounding the result down to the nearest integer. For example, if the frame rate is set to 25 FPS and this method sets the GOP size to 125 frames. The acutal GOP is 5 seconds, that is, one I-frame per 5 seconds. If the GOP size in frames is smaller than the frame rate value, the actual GOP is 1.

Parameters:

gop - Valid values: [0, 9,000] When this parameter is set to 0, full I-frames may be possible depending on the device type.

videoBitrate

public AliyunVideoRecorderConfig.Builder videoBitrate(int videoBitrate)

Sets the video bitrate. Valid values: [200, 20,000]. Unit: kbit/s. If the bitrate exceeds the recommended maximum value, the bitrate specified in the input parameter may not take effect in some hardware encoders. For example, for a resolution of 1280 x 720 pixels, a bitrate of 4 Mbit/s should be enough. If the bitrate is set to 10 Mbit/s, the actual bitrate may still be 4 Mbit/s depending on the encoder.

Parameters:

videoBitrate -

build

public AliyunVideoRecorderConfig build()