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Support USB HID over AoAv2 mode for keyboard input

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This provides a better input experience via
simulate physical keyboard, it converts
SDL_KeyboardEvent to proper HID events and send it
via HID over AoAv2.

This is a rewriting and bugfix of the origin code
from [@amosbird](https://github.com/amosbird).

Make sdl_keymod_to_hid_modifiers() more readable

Support MOD keys in HID mode

Enable Ctrl+V on HID mode

Support to send media events from hid_keyboard

Use existing --serial to replace --usb

Use explict option for input mode

Move HID keyboard setup code into functions

Send HID events in separated thread

Let libusb handle max package size

Fix HID keyboard report desc
This commit is contained in:
Alynx Zhou
2021-09-10 18:57:35 +08:00
committed by Romain Vimont
parent a52779ae6b
commit 874a4967a4
11 changed files with 928 additions and 13 deletions
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18
app/scrcpy.1
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@@ -82,6 +82,24 @@ Start in fullscreen.
.B \-h, \-\-help
Print this help.
.TP
.B \-K, \-\-keyboard\-hid
Simulate a physical keyboard by using HID over AOAv2.
This provides a better experience for IME users, and allows to generate non-ASCII characters, contrary to the default injection method.
It may only work over USB, and is currently only supported on Linux.
.TP
.B \-i, \-\-input\-mode mode
Select input mode for keyboard events.
Possible values are "hid" and "inject".
"hid" uses Android's USB HID over AOAv2 feature to simulate physical keyboard's events, which provides better experience for IME users if supported by you device.
"inject" is the legacy scrcpy way by injecting keycode events on Android, works on most devices and is the default.
.TP
.B \-\-legacy\-paste
Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+Shift+v).