How to increase video quality

[changmiao007]

How to increase the quality of video? It's best to achieve the screen capture quality of Android phones？

[drauggres]

Hi.

The client sends a video settings to the server to start the stream. There is Configure stream button in the UI that shows dialog, where you can change video settings before start. After start you can change video settings any time from the More menu (three dots). In both cases client will send controll message with type TYPE_CHANGE_STREAM_PARAMETERS, like here:

ws-scrcpy/src/app/googDevice/client/StreamClientScrcpy.ts

Lines 362 to 364 in 4247f2a

	public sendNewVideoSetting(videoSettings: VideoSettings): void {
	this.requestedVideoSettings = videoSettings;
	this.sendMessage(CommandControlMessage.createSetVideoSettingsCommand(videoSettings));

Each player has own preferredVideoSettings that are used by default.
When you manually change video settings, they are stored into localStorage and will be used instead of the default "preferred".

ws-scrcpy/src/app/player/BasePlayer.ts

Line 301 in 4247f2a

public setVideoSettings(videoSettings: VideoSettings, fitToScreen: boolean, saveToStorage: boolean): void {

To answer the question, you have these options:

• use Configure stream button
• change setting after start from More menu
• hardcode new "preferred"

In theory it should be possible to implement automatic quality switching. Players have some quality statistics, you can see them by enabling corresponding option in the More menu.

UPD: Under Configure stream dialog you can also change codec options . This could help, but be aware that Broadway.js and TinyH264 support only Baseline profile (see #70).

[drauggres]

From #140:

I've seen all the setup related codes here. The video quality still can not meet our requirements. We have set the Java end to send the video stream according to the maximum resolution of the mobile phone, and set the video frame to a fixed size at the front end, but this can only slightly increase the definition, and can not solve the video clarity from the source

Well, if you already know how to change settings and did it, I'm not sure how else I can help.
Just curious, what screen resolution does the phone have and what video settings did you apply?