Error when using scrcpy-server directly

[realyanyang]

I also want to get the video stream only from the android like #129 .
But when I run the command:

➜ /home/yanyang > adb shell CLASSPATH=/data/local/tmp/scrcpy-server.jar app_process / com.genymobile.scrcpy.Server 0 800000 true 
[server] ERROR: Exception on thread Thread[main,5,main]
java.lang.IllegalArgumentException: Expecting 5 parameters
	at com.genymobile.scrcpy.Server.createOptions(Server.java:71)
	at com.genymobile.scrcpy.Server.main(Server.java:132)
	at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
	at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:340)

I use it in Ubuntu18.04

scrcpy 1.9

dependencies:
 - SDL 2.0.8
 - libavcodec 57.107.100
 - libavformat 57.83.100
 - libavutil 55.78.100

adb version: 1.0.41
Thanks.

[rom1v]

There are more parameters now:

adb shell CLASSPATH=/data/local/tmp/scrcpy-server.jar app_process / com.genymobile.scrcpy.Server 0 8000000 false - false true

See:

scrcpy/server/src/main/java/com/genymobile/scrcpy/Server.java

Lines 76 to 93 in 91ecb4f

	int maxSize = Integer.parseInt(args[0]) & ~7; // multiple of 8
	options.setMaxSize(maxSize);
	int bitRate = Integer.parseInt(args[1]);
	options.setBitRate(bitRate);
	// use "adb forward" instead of "adb tunnel"? (so the server must listen)
	boolean tunnelForward = Boolean.parseBoolean(args[2]);
	options.setTunnelForward(tunnelForward);
	Rect crop = parseCrop(args[3]);
	options.setCrop(crop);
	boolean sendFrameMeta = Boolean.parseBoolean(args[4]);
	options.setSendFrameMeta(sendFrameMeta);
	boolean control = Boolean.parseBoolean(args[5]);
	options.setControl(control);

[realyanyang]

Thanks for your reply. It is the parameters problem.
But there are other problems:
adb shell CLASSPATH=/data/local/tmp/scrcpy-server.jar app_process / com.genymobile.scrcpy.Server 0 800000 true - true true
Then it block the terminal, is it normal?
Then I use another terminal run the command:
adb forward tcp:8080 localabstract:scrcpy
Then I run a python script just like #129 , I can get the dummy byte (0), but I can't get the next 68 bytes.
I try to wait a minute, but there are no bytes any more.

[rom1v]

Are there any relevant messages in adb logcat?

[rom1v]

Oh, of course it does not work anymore, now there are two sockets: ec71a3f.

adb push scrcpy-server.jar /data/local/tmp/scrcpy-server.jar
adb forward tcp:8080 localabstract:scrcpy
adb shell CLASSPATH=/data/local/tmp/scrcpy-server.jar app_process / com.genymobile.scrcpy.Server 0 800000 true - true true

Then you need to connect two sockets successively:

# video socket
nc localhost 8080

Then, in another terminal:

# control socket
nc localhost 8080

(the protocol between the server and the client is internal and can change at any time, I really need to expose a libscrcpy…)

[realyanyang]

Thank you so much !!
It's an amazing job.
Looking forward to your libscrcpy.

[NickStemerdink]

I'm having the same problem when following the common steps of build.md.

./run x
2019-07-12 12:30:04.693 scrcpy[12993:8476893] DEBUG: Using SCRCPY_SERVER_PATH: x/server/scrcpy-server.jar
x/server/scrcpy-server.jar: 1 file pushed. 5.4 MB/s (19734 bytes in 0.003s)
ERROR: Exception on thread Thread[main,5,main]
java.lang.IllegalArgumentException: Expecting 5 parameters
	at com.genymobile.scrcpy.Server.createOptions(Server.java:53)
	at com.genymobile.scrcpy.Server.main(Server.java:109)
	at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
	at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:308)

[rom1v]

You must use the same version for the client and the server.

So git pull and use the last prebuilt server.

[NickStemerdink]

Using the prebuilt server worked, thanks.

[siam-titan]

God I hope this thread isn't dead, I'm now facing an issue where after pushing the scrcpy-server file and adding classpath, I'm seeing that the client and server version doesn't match.

[server] ERROR: Exception on thread Thread[main,5,main]
java.lang.IllegalArgumentException: The server version (1.24) does not match the client (0)
at com.genymobile.scrcpy.Server.createOptions(Server.java:167)
at com.genymobile.scrcpy.Server.main(Server.java:331)
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:340)

Same commands were ran from above. I'm using scrcpy version 1.24, and downloaded the proper prebuilt server (scrcpy-server-v1.24) from the repo. Still the client version seems to show (0). What can I do?

[rom1v]

You must pass the paramters expected by scrcpy-server, as they are sent by the client: https://github.com/Genymobile/scrcpy/blob/v1.24/app/src/server.c#L163-L258

[siam-titan]

adb shell CLASSPATH=/data/local/tmp/scrcpy-server-v1.24 app_process / com.genymobile.scrcpy.Server 0 800000 true - true true

This is what I'm using, is there something wrong with the parameters I'm passing?

[rom1v]

This is what I'm using, is there something wrong with the parameters I'm passing?

Yes, this is wrong.

Check how the parameters are passed: https://github.com/Genymobile/scrcpy/blob/v1.24/app/src/server.c#L163-L258

adb shell CLASSPATH=/data/local/tmp/scrcpy-server-v1.24 app_process / com.genymobile.scrcpy.Server 1.24

is probably sufficient.

[siam-titan]

After running the code, I'm getting this error now,

adb forward tcp:8091 localabstract:scrcpy
adb push scrcpy-server-v1.24 /data/local/tmp/
adb shell CLASSPATH=/data/local/tmp/scrcpy-server-v1.24 app_process / com.genymobile.scrcpy.Server 1.24

[server] INFO: Device: Google AOSP on IA Emulator (Android 9)
[server] ERROR: Exception on thread Thread[main,5,main]
java.io.IOException: Connection refused
at android.net.LocalSocketImpl.connectLocal(Native Method)
at android.net.LocalSocketImpl.connect(LocalSocketImpl.java:292)
at android.net.LocalSocket.connect(LocalSocket.java:145)
at com.genymobile.scrcpy.DesktopConnection.connect(DesktopConnection.java:45)
at com.genymobile.scrcpy.DesktopConnection.open(DesktopConnection.java:72)
at com.genymobile.scrcpy.Server.scrcpy(Server.java:74)
at com.genymobile.scrcpy.Server.main(Server.java:335)
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:340)

I'm having a really hard time understanding the code you provided unfortunately. What can I do now? An example would really help a lot .

[rom1v]

@siam-titan This post might help you: https://code.videolan.org/rom1v/vlc/-/merge_requests/20

[siam-titan]

@rom1v thank you so much man, issues related to scrcpy was solved by that link. The stream works properly when I'm playing it with vlc/ffplay. But dunno why in the browser the video is corrupted. It's surely live because I can see the colors change when I interact with the emulator. I'm using h264-live-player library to decode the stream. Is there anything I can do now?