Make -K -M and -G use AOA in OTG mode

For convenience, short options were added to select UHID input modes:
 - -K for --keyboard=uhid
 - -M for --mouse=uhid
 - -G for --gamepad=uhid

In OTG mode, UHID is not available, so the short options should select
AOA instead.

PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>

app/data/zsh-completion/_scrcpy

@@ -33,10 +33,10 @@ arguments=(
     {-e,--select-tcpip}'[Use TCP/IP device]'
     {-f,--fullscreen}'[Start in fullscreen]'
     '--force-adb-forward[Do not attempt to use \"adb reverse\" to connect to the device]'
-    '-G[Use UHID gamepad (same as --gamepad=uhid)]'
+    '-G[Use UHID/AOA gamepad (same as --gamepad=uhid or --gamepad=aoa, depending on OTG mode)]'
     '--gamepad=[Set the gamepad input mode]:mode:(disabled uhid aoa)'
     {-h,--help}'[Print the help]'
-    '-K[Use UHID keyboard (same as --keyboard=uhid)]'
+    '-K[Use UHID/AOA keyboard (same as --keyboard=uhid or --keyboard=aoa, depending on OTG mode)]'
     '--keyboard=[Set the keyboard input mode]:mode:(disabled sdk uhid aoa)'
     '--kill-adb-on-close[Kill adb when scrcpy terminates]'
     '--legacy-paste[Inject computer clipboard text as a sequence of key events on Ctrl+v]'
@@ -46,7 +46,7 @@ arguments=(
     '--list-encoders[List video and audio encoders available on the device]'
     '--lock-video-orientation=[Lock video orientation]:orientation:(unlocked initial 0 90 180 270)'
     {-m,--max-size=}'[Limit both the width and height of the video to value]'
-    '-M[Use UHID mouse (same as --mouse=uhid)]'
+    '-M[Use UHID/AOA mouse (same as --mouse=uhid or --mouse=aoa, depending on OTG mode)]'
     '--max-fps=[Limit the frame rate of screen capture]'
     '--mouse=[Set the mouse input mode]:mode:(disabled sdk uhid aoa)'
     '--mouse-bind=[Configure bindings of secondary clicks]'

app/scrcpy.1

@@ -176,8 +176,8 @@ Start in fullscreen.
 Do not attempt to use "adb reverse" to connect to the device.
 
 .TP
-.B \-K
+.B \-G
-Same as \fB\-\-gamepad=uhid\fR.
+Same as \fB\-\-gamepad=uhid\fR, or \fB\-\-keyboard=aoa\fR if \fB\-\-otg\fR is set.
 
 .TP
 .BI "\-\-gamepad " mode
@@ -196,7 +196,7 @@ Print this help.
 
 .TP
 .B \-K
-Same as \fB\-\-keyboard=uhid\fR.
+Same as \fB\-\-keyboard=uhid\fR, or \fB\-\-keyboard=aoa\fR if \fB\-\-otg\fR is set.
 
 .TP
 .BI "\-\-keyboard " mode
@@ -261,7 +261,7 @@ Default is 0 (unlimited).
 
 .TP
 .B \-M
-Same as \fB\-\-mouse=uhid\fR.
+Same as \fB\-\-mouse=uhid\fR, or \fB\-\-mouse=aoa\fR if \fB\-\-otg\fR is set.
 
 .TP
 .BI "\-\-max\-fps " value

app/src/cli.c

@@ -375,7 +375,7 @@ static const struct sc_option options[] = {
     },
     {
         .shortopt = 'G',
-        .text = "Same as --gamepad=uhid.",
+        .text = "Same as --gamepad=uhid, or --gamepad=aoa if --otg is set.",
     },
     {
         .longopt_id = OPT_GAMEPAD,
@@ -397,7 +397,7 @@ static const struct sc_option options[] = {
     },
     {
         .shortopt = 'K',
-        .text = "Same as --keyboard=uhid.",
+        .text = "Same as --keyboard=uhid, or --keyboard=aoa if --otg is set.",
     },
     {
         .longopt_id = OPT_KEYBOARD,
@@ -493,7 +493,7 @@ static const struct sc_option options[] = {
     },
     {
         .shortopt = 'M',
-        .text = "Same as --mouse=uhid.",
+        .text = "Same as --mouse=uhid, or --mouse=aoa if --otg is set.",
     },
     {
         .longopt_id = OPT_MAX_FPS,
@@ -2252,7 +2252,7 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 args->help = true;
                 break;
             case 'K':
-                opts->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_UHID;
+                opts->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_UHID_OR_AOA;
                 break;
             case OPT_KEYBOARD:
                 if (!parse_keyboard(optarg, &opts->keyboard_input_mode)) {
@@ -2272,7 +2272,7 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 }
                 break;
             case 'M':
-                opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_UHID;
+                opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_UHID_OR_AOA;
                 break;
             case OPT_MOUSE:
                 if (!parse_mouse(optarg, &opts->mouse_input_mode)) {
@@ -2657,7 +2657,7 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 opts->audio_dup = true;
                 break;
             case 'G':
-                opts->gamepad_input_mode = SC_GAMEPAD_INPUT_MODE_UHID;
+                opts->gamepad_input_mode = SC_GAMEPAD_INPUT_MODE_UHID_OR_AOA;
                 break;
             case OPT_GAMEPAD:
                 if (!parse_gamepad(optarg, &opts->gamepad_input_mode)) {
@@ -2781,7 +2781,12 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
         if (opts->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_AUTO) {
             opts->keyboard_input_mode = otg ? SC_KEYBOARD_INPUT_MODE_AOA
                                             : SC_KEYBOARD_INPUT_MODE_SDK;
+        } else if (opts->keyboard_input_mode
+                == SC_KEYBOARD_INPUT_MODE_UHID_OR_AOA) {
+            opts->keyboard_input_mode = otg ? SC_KEYBOARD_INPUT_MODE_AOA
+                                            : SC_KEYBOARD_INPUT_MODE_UHID;
         }
+
         if (opts->mouse_input_mode == SC_MOUSE_INPUT_MODE_AUTO) {
             if (otg) {
                 opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_AOA;
@@ -2791,11 +2796,18 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             } else {
                 opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_SDK;
             }
+        } else if (opts->mouse_input_mode == SC_MOUSE_INPUT_MODE_UHID_OR_AOA) {
+            opts->mouse_input_mode = otg ? SC_MOUSE_INPUT_MODE_AOA
+                                         : SC_MOUSE_INPUT_MODE_UHID;
         } else if (opts->mouse_input_mode == SC_MOUSE_INPUT_MODE_SDK
                     && !opts->video_playback) {
             LOGE("SDK mouse mode requires video playback. Try --mouse=uhid.");
             return false;
         }
+        if (opts->gamepad_input_mode == SC_GAMEPAD_INPUT_MODE_UHID_OR_AOA) {
+            opts->gamepad_input_mode = otg ? SC_GAMEPAD_INPUT_MODE_AOA
+                                           : SC_GAMEPAD_INPUT_MODE_UHID;
+        }
     }
 
     // If mouse bindings are not explicitly set, configure default bindings

app/src/options.h

@@ -142,6 +142,7 @@ enum sc_lock_video_orientation {
 
 enum sc_keyboard_input_mode {
     SC_KEYBOARD_INPUT_MODE_AUTO,
+    SC_KEYBOARD_INPUT_MODE_UHID_OR_AOA, // normal vs otg mode
     SC_KEYBOARD_INPUT_MODE_DISABLED,
     SC_KEYBOARD_INPUT_MODE_SDK,
     SC_KEYBOARD_INPUT_MODE_UHID,
@@ -150,6 +151,7 @@ enum sc_keyboard_input_mode {
 
 enum sc_mouse_input_mode {
     SC_MOUSE_INPUT_MODE_AUTO,
+    SC_MOUSE_INPUT_MODE_UHID_OR_AOA, // normal vs otg mode
     SC_MOUSE_INPUT_MODE_DISABLED,
     SC_MOUSE_INPUT_MODE_SDK,
     SC_MOUSE_INPUT_MODE_UHID,
@@ -158,6 +160,7 @@ enum sc_mouse_input_mode {
 
 enum sc_gamepad_input_mode {
     SC_GAMEPAD_INPUT_MODE_DISABLED,
+    SC_GAMEPAD_INPUT_MODE_UHID_OR_AOA, // normal vs otg mode
     SC_GAMEPAD_INPUT_MODE_UHID,
     SC_GAMEPAD_INPUT_MODE_AOA,
 };