Plug RTP

A new "attributionTag" parameter has been added to the methods
getPrimaryClip(), setPrimaryClip() and addPrimaryClipChangedListener()
of IClipboard.aidl.

Refs <0e3e509b3b%5E%21/>

Fixes #3497 <https://github.com/Genymobile/scrcpy/issues/3497>

README.md

@@ -395,8 +395,8 @@ address), connect the device over USB, then run:
 scrcpy --tcpip    # without arguments
 ```
 
-It will automatically find the device IP address, enable TCP/IP mode, then
-connect to the device before starting.
+It will automatically find the device IP address and adb port, enable TCP/IP
+mode if necessary, then connect to the device before starting.
 
 ##### Manual
 

app/data/bash-completion/scrcpy

@@ -93,6 +93,11 @@ _scrcpy() {
             COMPREPLY=($(compgen -W 'verbose debug info warn error' -- "$cur"))
             return
             ;;
+        -s|--serial)
+            # Use 'adb devices' to list serial numbers
+            COMPREPLY=($(compgen -W "$("${ADB:-adb}" devices | awk '$2 == "device" {print $1}')" -- ${cur}))
+            return
+            ;;
         -b|--bitrate \
         |--codec-options \
         |--crop \
@@ -103,7 +108,6 @@ _scrcpy() {
         |-m|--max-size \
         |-p|--port \
         |--push-target \
-        |-s|--serial \
         |--tunnel-host \
         |--tunnel-port \
         |--v4l2-buffer \

app/data/scrcpy-console.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+Name=scrcpy (console)
+GenericName=Android Remote Control
+Comment=Display and control your Android device
+# For some users, the PATH or ADB environment variables are set from the shell
+# startup file, like .bashrc or .zshrc… Run an interactive shell to get
+# environment correctly initialized.
+Exec=/bin/bash --norc --noprofile -i -c '"$SHELL" -i -c scrcpy || read -p "Press any key to quit..."'
+Icon=scrcpy
+Terminal=true
+Type=Application
+Categories=Utility;RemoteAccess;
+StartupNotify=false

app/data/scrcpy.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+Name=scrcpy
+GenericName=Android Remote Control
+Comment=Display and control your Android device
+# For some users, the PATH or ADB environment variables are set from the shell
+# startup file, like .bashrc or .zshrc… Run an interactive shell to get
+# environment correctly initialized.
+Exec=/bin/sh -c '"$SHELL" -i -c scrcpy'
+Icon=scrcpy
+Terminal=false
+Type=Application
+Categories=Utility;RemoteAccess;
+StartupNotify=false

app/data/zsh-completion/_scrcpy

@@ -47,7 +47,7 @@ arguments=(
     '--record-format=[Force recording format]:format:(mp4 mkv)'
     '--render-driver=[Request SDL to use the given render driver]:driver name:(direct3d opengl opengles2 opengles metal software)'
     '--rotation=[Set the initial display rotation]:rotation values:(0 1 2 3)'
-    {-s,--serial=}'[The device serial number \(mandatory for multiple devices only\)]'
+    {-s,--serial=}'[The device serial number \(mandatory for multiple devices only\)]:serial:($("${ADB-adb}" devices | awk '\''$2 == "device" {print $1}'\''))'
     '--shortcut-mod=[\[key1,key2+key3,...\] Specify the modifiers to use for scrcpy shortcuts]:shortcut mod:(lctrl rctrl lalt ralt lsuper rsuper)'
     {-S,--turn-screen-off}'[Turn the device screen off immediately]'
     {-t,--show-touches}'[Show physical touches]'

app/meson.build

@@ -23,6 +23,7 @@ src = [
     'src/options.c',
     'src/receiver.c',
     'src/recorder.c',
+    'src/rtp.c',
     'src/scrcpy.c',
     'src/screen.c',
     'src/server.c',
@@ -223,14 +224,26 @@ executable('scrcpy', src,
            install: true,
            c_args: [])
 
+# <https://mesonbuild.com/Builtin-options.html#directories>
+datadir = get_option('datadir') # by default 'share'
+
 install_man('scrcpy.1')
 install_data('data/icon.png',
              rename: 'scrcpy.png',
-             install_dir: 'share/icons/hicolor/256x256/apps')
+             install_dir: join_paths(datadir, 'icons/hicolor/256x256/apps'))
 install_data('data/zsh-completion/_scrcpy',
-             install_dir: 'share/zsh/site-functions')
+             install_dir: join_paths(datadir, 'zsh/site-functions'))
 install_data('data/bash-completion/scrcpy',
-             install_dir: 'share/bash-completion/completions')
+             install_dir: join_paths(datadir, 'bash-completion/completions'))
+
+# Desktop entry file for application launchers
+if host_machine.system() == 'linux'
+    # Install a launcher (ex: /usr/local/share/applications/scrcpy.desktop)
+    install_data('data/scrcpy.desktop',
+                 install_dir: join_paths(datadir, 'applications'))
+    install_data('data/scrcpy-console.desktop',
+                 install_dir: join_paths(datadir, 'applications'))
+endif
 
 
 ### TESTS
@@ -245,8 +258,8 @@ if get_option('buildtype') == 'debug'
             'src/util/str.c',
             'src/util/strbuf.c',
         ]],
-        ['test_buffer_util', [
-            'tests/test_buffer_util.c',
+        ['test_binary', [
+            'tests/test_binary.c',
         ]],
         ['test_cbuf', [
             'tests/test_cbuf.c',
@@ -255,6 +268,7 @@ if get_option('buildtype') == 'debug'
             'tests/test_cli.c',
             'src/cli.c',
             'src/options.c',
+            'src/util/log.c',
             'src/util/net.c',
             'src/util/str.c',
             'src/util/strbuf.c',

app/scrcpy.1

@@ -275,7 +275,7 @@ Configure and reconnect the device over TCP/IP.
 
 If a destination address is provided, then scrcpy connects to this address before starting. The device must listen on the given TCP port (default is 5555).
 
-If no destination address is provided, then scrcpy attempts to find the IP address of the current device (typically connected over USB), enables TCP/IP mode, then connects to this address before starting.
+If no destination address is provided, then scrcpy attempts to find the IP address and adb port of the current device (typically connected over USB), enables TCP/IP mode if necessary, then connects to this address before starting.
 
 .TP
 .B \-S, \-\-turn\-screen\-off

app/src/control_msg.c

@@ -5,7 +5,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "util/buffer_util.h"
+#include "util/binary.h"
 #include "util/log.h"
 #include "util/str.h"
 
@@ -37,7 +37,7 @@ static const char *const android_motionevent_action_labels[] = {
     "move",
     "cancel",
     "outside",
-    "ponter-down",
+    "pointer-down",
     "pointer-up",
     "hover-move",
     "scroll",
@@ -78,16 +78,6 @@ write_string(const char *utf8, size_t max_len, unsigned char *buf) {
     return 4 + len;
 }
 
-static uint16_t
-to_fixed_point_16(float f) {
-    assert(f >= 0.0f && f <= 1.0f);
-    uint32_t u = f * 0x1p16f; // 2^16
-    if (u >= 0xffff) {
-        u = 0xffff;
-    }
-    return (uint16_t) u;
-}
-
 size_t
 sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf) {
     buf[0] = msg->type;
@@ -109,18 +99,20 @@ sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf) {
             sc_write64be(&buf[2], msg->inject_touch_event.pointer_id);
             write_position(&buf[10], &msg->inject_touch_event.position);
             uint16_t pressure =
-                to_fixed_point_16(msg->inject_touch_event.pressure);
+                sc_float_to_u16fp(msg->inject_touch_event.pressure);
             sc_write16be(&buf[22], pressure);
             sc_write32be(&buf[24], msg->inject_touch_event.buttons);
             return 28;
         case SC_CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
             write_position(&buf[1], &msg->inject_scroll_event.position);
-            sc_write32be(&buf[13],
-                             (uint32_t) msg->inject_scroll_event.hscroll);
-            sc_write32be(&buf[17],
-                             (uint32_t) msg->inject_scroll_event.vscroll);
-            sc_write32be(&buf[21], msg->inject_scroll_event.buttons);
-            return 25;
+            int16_t hscroll =
+                sc_float_to_i16fp(msg->inject_scroll_event.hscroll);
+            int16_t vscroll =
+                sc_float_to_i16fp(msg->inject_scroll_event.vscroll);
+            sc_write16be(&buf[13], (uint16_t) hscroll);
+            sc_write16be(&buf[15], (uint16_t) vscroll);
+            sc_write32be(&buf[17], msg->inject_scroll_event.buttons);
+            return 21;
         case SC_CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
             buf[1] = msg->inject_keycode.action;
             return 2;
@@ -191,8 +183,8 @@ sc_control_msg_log(const struct sc_control_msg *msg) {
             break;
         }
         case SC_CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
-            LOG_CMSG("scroll position=%" PRIi32 ",%" PRIi32 " hscroll=%" PRIi32
-                         " vscroll=%" PRIi32 " buttons=%06lx",
+            LOG_CMSG("scroll position=%" PRIi32 ",%" PRIi32 " hscroll=%f"
+                         " vscroll=%f buttons=%06lx",
                      msg->inject_scroll_event.position.point.x,
                      msg->inject_scroll_event.position.point.y,
                      msg->inject_scroll_event.hscroll,

app/src/control_msg.h

@@ -68,8 +68,8 @@ struct sc_control_msg {
         } inject_touch_event;
         struct {
             struct sc_position position;
-            int32_t hscroll;
-            int32_t vscroll;
+            float hscroll;
+            float vscroll;
             enum android_motionevent_buttons buttons;
         } inject_scroll_event;
         struct {

app/src/demuxer.c

@@ -7,7 +7,7 @@
 #include "decoder.h"
 #include "events.h"
 #include "recorder.h"
-#include "util/buffer_util.h"
+#include "util/binary.h"
 #include "util/log.h"
 
 #define SC_PACKET_HEADER_SIZE 12

app/src/demuxer.h

@@ -12,7 +12,7 @@
 #include "util/net.h"
 #include "util/thread.h"
 
-#define SC_DEMUXER_MAX_SINKS 2
+#define SC_DEMUXER_MAX_SINKS 3
 
 struct sc_demuxer {
     sc_socket socket;

app/src/device_msg.c

@@ -4,7 +4,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "util/buffer_util.h"
+#include "util/binary.h"
 #include "util/log.h"
 
 ssize_t

app/src/input_events.h

@@ -358,8 +358,8 @@ struct sc_mouse_click_event {
 
 struct sc_mouse_scroll_event {
     struct sc_position position;
-    int32_t hscroll;
-    int32_t vscroll;
+    float hscroll;
+    float vscroll;
     uint8_t buttons_state; // bitwise-OR of sc_mouse_button values
 };
 

app/src/input_manager.c

@@ -747,8 +747,13 @@ sc_input_manager_process_mouse_wheel(struct sc_input_manager *im,
             .point = sc_screen_convert_window_to_frame_coords(im->screen,
                                                               mouse_x, mouse_y),
         },
-        .hscroll = event->x,
-        .vscroll = event->y,
+#if SDL_VERSION_ATLEAST(2, 0, 18)
+        .hscroll = CLAMP(event->preciseX, -1.0f, 1.0f),
+        .vscroll = CLAMP(event->preciseY, -1.0f, 1.0f),
+#else
+        .hscroll = CLAMP(event->x, -1, 1),
+        .vscroll = CLAMP(event->y, -1, 1),
+#endif
         .buttons_state =
             sc_mouse_buttons_state_from_sdl(buttons, im->forward_all_clicks),
     };

app/src/main.c

@@ -4,6 +4,10 @@
 #include <stdbool.h>
 #include <unistd.h>
 #include <libavformat/avformat.h>
+#ifdef _WIN32
+#include <windows.h>
+#include "util/str.h"
+#endif
 #ifdef HAVE_V4L2
 # include <libavdevice/avdevice.h>
 #endif
@@ -18,8 +22,8 @@
 #include "version.h"
 
 int
-main(int argc, char *argv[]) {
-#ifdef __WINDOWS__
+main_scrcpy(int argc, char *argv[]) {
+#ifdef _WIN32
     // disable buffering, we want logs immediately
     // even line buffering (setvbuf() with mode _IOLBF) is not sufficient
     setbuf(stdout, NULL);
@@ -80,3 +84,52 @@ main(int argc, char *argv[]) {
 
     return ret;
 }
+
+int
+main(int argc, char *argv[]) {
+#ifndef _WIN32
+    return main_scrcpy(argc, argv);
+#else
+    (void) argc;
+    (void) argv;
+    int wargc;
+    wchar_t **wargv = CommandLineToArgvW(GetCommandLineW(), &wargc);
+    if (!wargv) {
+        LOG_OOM();
+        return SCRCPY_EXIT_FAILURE;
+    }
+
+    char **argv_utf8 = malloc((wargc + 1) * sizeof(*argv_utf8));
+    if (!argv_utf8) {
+        LOG_OOM();
+        LocalFree(wargv);
+        return SCRCPY_EXIT_FAILURE;
+    }
+
+    argv_utf8[wargc] = NULL;
+
+    for (int i = 0; i < wargc; ++i) {
+        argv_utf8[i] = sc_str_from_wchars(wargv[i]);
+        if (!argv_utf8[i]) {
+            LOG_OOM();
+            for (int j = 0; j < i; ++j) {
+                free(argv_utf8[j]);
+            }
+            LocalFree(wargv);
+            free(argv_utf8);
+            return SCRCPY_EXIT_FAILURE;
+        }
+    }
+
+    LocalFree(wargv);
+
+    int ret = main_scrcpy(wargc, argv_utf8);
+
+    for (int i = 0; i < wargc; ++i) {
+        free(argv_utf8[i]);
+    }
+    free(argv_utf8);
+
+    return ret;
+#endif
+}

app/src/rtp.c

@@ -0,0 +1,319 @@
+#include "rtp.h"
+
+#include <assert.h>
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libavutil/time.h>
+
+#include "util/log.h"
+
+/** Downcast packet_sink to rtp */
+#define DOWNCAST(SINK) container_of(SINK, struct sc_rtp, packet_sink)
+
+static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
+
+static struct sc_rtp_packet *
+sc_rtp_packet_new(const AVPacket *packet) {
+    struct sc_rtp_packet *rtp = malloc(sizeof(*rtp));
+    if (!rtp) {
+        LOG_OOM();
+        return NULL;
+    }
+
+    rtp->packet = av_packet_alloc();
+    if (!rtp->packet) {
+        LOG_OOM();
+        free(rtp);
+        return NULL;
+    }
+
+    if (av_packet_ref(rtp->packet, packet)) {
+        av_packet_free(&rtp->packet);
+        free(rtp);
+        return NULL;
+    }
+
+    return rtp;
+}
+
+static void
+sc_rtp_packet_delete(struct sc_rtp_packet *rtp) {
+    av_packet_free(&rtp->packet);
+    free(rtp);
+}
+
+static void
+sc_rtp_queue_clear(struct sc_rtp_queue *queue) {
+    while (!sc_queue_is_empty(queue)) {
+        struct sc_rtp_packet *rtp;
+        sc_queue_take(queue, next, &rtp);
+        sc_rtp_packet_delete(rtp);
+    }
+}
+
+static bool
+sc_rtp_write_header(struct sc_rtp *rtp, const AVPacket *packet) {
+    AVStream *ostream = rtp->ctx->streams[0];
+
+    uint8_t *extradata = av_malloc(packet->size * sizeof(uint8_t));
+    if (!extradata) {
+        LOG_OOM();
+        return false;
+    }
+
+    // copy the first packet to the extra data
+    memcpy(extradata, packet->data, packet->size);
+
+    ostream->codecpar->extradata = extradata;
+    ostream->codecpar->extradata_size = packet->size;
+
+    int ret = avformat_write_header(rtp->ctx, NULL);
+    if (ret < 0) {
+        LOGE("Failed to write RTP header");
+        return false;
+    }
+
+    return true;
+}
+
+static void
+sc_rtp_rescale_packet(struct sc_rtp *rtp, AVPacket *packet) {
+    AVStream *ostream = rtp->ctx->streams[0];
+    av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
+}
+
+static bool
+sc_rtp_write(struct sc_rtp *rtp, AVPacket *packet) {
+    if (!rtp->header_written) {
+        if (packet->pts != AV_NOPTS_VALUE) {
+            LOGE("The first packet is not a config packet");
+            return false;
+        }
+        bool ok = sc_rtp_write_header(rtp, packet);
+        if (!ok) {
+            return false;
+        }
+        rtp->header_written = true;
+        return true;
+    }
+
+    if (packet->pts == AV_NOPTS_VALUE) {
+        // ignore config packets
+        return true;
+    }
+
+    sc_rtp_rescale_packet(rtp, packet);
+    return av_write_frame(rtp->ctx, packet) >= 0;
+}
+
+static int
+run_rtp(void *data) {
+    struct sc_rtp *rtp = data;
+
+    for (;;) {
+        sc_mutex_lock(&rtp->mutex);
+
+        while (!rtp->stopped && sc_queue_is_empty(&rtp->queue)) {
+            sc_cond_wait(&rtp->queue_cond, &rtp->mutex);
+        }
+
+        // if stopped is set, continue to process the remaining events (to
+        // finish the streaming) before actually stopping
+
+        if (rtp->stopped && sc_queue_is_empty(&rtp->queue)) {
+            sc_mutex_unlock(&rtp->mutex);
+            break;
+        }
+
+        struct sc_rtp_packet *pkt;
+        sc_queue_take(&rtp->queue, next, &pkt);
+
+        sc_mutex_unlock(&rtp->mutex);
+
+        bool ok = sc_rtp_write(rtp, pkt->packet);
+        sc_rtp_packet_delete(pkt);
+        if (!ok) {
+            LOGE("Could not send packet");
+
+            sc_mutex_lock(&rtp->mutex);
+            rtp->failed = true;
+            // discard pending packets
+            sc_rtp_queue_clear(&rtp->queue);
+            sc_mutex_unlock(&rtp->mutex);
+            break;
+        }
+    }
+
+    if (!rtp->failed) {
+        if (rtp->header_written) {
+            int ret = av_write_trailer(rtp->ctx);
+            if (ret < 0) {
+                LOGE("Failed to write RTP trailer");
+                rtp->failed = true;
+            }
+        } else {
+            // nothing has been sent
+            rtp->failed = true;
+        }
+    }
+
+    if (rtp->failed) {
+        LOGE("Streaming over RTP failed");
+    } else {
+        LOGI("Streaming over RTP complete");
+    }
+
+    LOGD("RTP streaming thread ended");
+
+    return 0;
+}
+
+static bool
+sc_rtp_open(struct sc_rtp *rtp, const AVCodec *input_codec) {
+    bool ok = sc_mutex_init(&rtp->mutex);
+    if (!ok) {
+        return false;
+    }
+
+    ok = sc_cond_init(&rtp->queue_cond);
+    if (!ok) {
+        goto error_mutex_destroy;
+    }
+
+    sc_queue_init(&rtp->queue);
+    rtp->stopped = false;
+    rtp->failed = false;
+    rtp->header_written = false;
+
+    int ret = avformat_alloc_output_context2(&rtp->ctx, NULL, "rtp",
+                                             rtp->out_url);
+    if (ret < 0) {
+        goto error_cond_destroy;
+    }
+
+    AVStream *ostream = avformat_new_stream(rtp->ctx, input_codec);
+    if (!ostream) {
+        goto error_avformat_free_context;
+    }
+
+    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+    ostream->codecpar->codec_id = input_codec->id;
+    ostream->codecpar->width = rtp->declared_frame_size.width;
+    ostream->codecpar->height = rtp->declared_frame_size.height;
+
+    ret = avio_open(&rtp->ctx->pb, rtp->out_url, AVIO_FLAG_WRITE);
+    if (ret < 0) {
+        LOGE("Failed to open output: %s", rtp->out_url);
+        // ostream will be cleaned up during context cleaning
+        goto error_avformat_free_context;
+    }
+
+    LOGD("Starting RTP thread");
+    ok = sc_thread_create(&rtp->thread, run_rtp, "scrcpy-rtp", rtp);
+    if (!ok) {
+        LOGE("Could not start RTP thread");
+        goto error_avio_close;
+    }
+
+    LOGI("Streaming started to %s", rtp->out_url);
+
+    return true;
+
+error_avio_close:
+    avio_close(rtp->ctx->pb);
+error_avformat_free_context:
+    avformat_free_context(rtp->ctx);
+error_cond_destroy:
+    sc_cond_destroy(&rtp->queue_cond);
+error_mutex_destroy:
+    sc_mutex_destroy(&rtp->mutex);
+
+    return false;
+}
+
+static void
+sc_rtp_close(struct sc_rtp *rtp) {
+    sc_mutex_lock(&rtp->mutex);
+    rtp->stopped = true;
+    sc_cond_signal(&rtp->queue_cond);
+    sc_mutex_unlock(&rtp->mutex);
+
+    sc_thread_join(&rtp->thread, NULL);
+
+    avio_close(rtp->ctx->pb);
+    avformat_free_context(rtp->ctx);
+    sc_cond_destroy(&rtp->queue_cond);
+    sc_mutex_destroy(&rtp->mutex);
+}
+
+static bool
+sc_rtp_push(struct sc_rtp *rtp, const AVPacket *packet) {
+    sc_mutex_lock(&rtp->mutex);
+    assert(!rtp->stopped);
+
+    if (rtp->failed) {
+        // reject any new packet (this will stop the stream)
+        sc_mutex_unlock(&rtp->mutex);
+        return false;
+    }
+
+    struct sc_rtp_packet *pkt = sc_rtp_packet_new(packet);
+    if (!pkt) {
+        LOG_OOM();
+        sc_mutex_unlock(&rtp->mutex);
+        return false;
+    }
+
+    sc_queue_push(&rtp->queue, next, pkt);
+    sc_cond_signal(&rtp->queue_cond);
+
+    sc_mutex_unlock(&rtp->mutex);
+    return true;
+}
+
+static bool
+sc_rtp_packet_sink_open(struct sc_packet_sink *sink,
+                        const AVCodec *codec) {
+    struct sc_rtp *rtp = DOWNCAST(sink);
+    return sc_rtp_open(rtp, codec);
+}
+
+static void
+sc_rtp_packet_sink_close(struct sc_packet_sink *sink) {
+    struct sc_rtp *rtp = DOWNCAST(sink);
+    sc_rtp_close(rtp);
+}
+
+static bool
+sc_rtp_packet_sink_push(struct sc_packet_sink *sink,
+                        const AVPacket *packet) {
+    struct sc_rtp *rtp = DOWNCAST(sink);
+    return sc_rtp_push(rtp, packet);
+}
+
+bool
+sc_rtp_init(struct sc_rtp *rtp, const char *out_url,
+            struct sc_size declared_frame_size) {
+    rtp->out_url = strdup(out_url);
+    if (!rtp->out_url) {
+        LOG_OOM();
+        return false;
+    }
+
+    rtp->declared_frame_size = declared_frame_size;
+
+    static const struct sc_packet_sink_ops ops = {
+        .open = sc_rtp_packet_sink_open,
+        .close = sc_rtp_packet_sink_close,
+        .push = sc_rtp_packet_sink_push,
+    };
+
+    rtp->packet_sink.ops = &ops;
+
+    return true;
+}
+
+void
+sc_rtp_destroy(struct sc_rtp *rtp) {
+    free(rtp->out_url);
+}

app/src/rtp.h

@@ -0,0 +1,44 @@
+#ifndef SC_RTP_H
+#define SC_RTP_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <libavformat/avformat.h>
+
+#include "coords.h"
+#include "trait/packet_sink.h"
+#include "util/queue.h"
+#include "util/thread.h"
+
+struct sc_rtp_packet {
+    AVPacket *packet;
+    struct sc_rtp_packet *next;
+};
+
+struct sc_rtp_queue SC_QUEUE(struct sc_rtp_packet);
+
+struct sc_rtp {
+    struct sc_packet_sink packet_sink; // packet sink trait;
+
+    char *out_url;
+    AVFormatContext *ctx;
+    struct sc_size declared_frame_size;
+    bool header_written;
+
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond queue_cond;
+    bool stopped; // set on rtp_close()
+    bool failed; // set on packet write failure
+    struct sc_rtp_queue queue;
+};
+
+bool
+sc_rtp_init(struct sc_rtp *rtp, const char *out_url,
+            struct sc_size declared_frame_size);
+
+void
+sc_rtp_destroy(struct sc_rtp *rtp);
+
+#endif

app/src/scrcpy.c

@@ -21,6 +21,7 @@
 #include "keyboard_inject.h"
 #include "mouse_inject.h"
 #include "recorder.h"
+#include "rtp.h"
 #include "screen.h"
 #include "server.h"
 #ifdef HAVE_USB
@@ -42,6 +43,7 @@ struct scrcpy {
     struct sc_demuxer demuxer;
     struct sc_decoder decoder;
     struct sc_recorder recorder;
+    struct sc_rtp rtp;
 #ifdef HAVE_V4L2
     struct sc_v4l2_sink v4l2_sink;
 #endif
@@ -283,6 +285,7 @@ scrcpy(struct scrcpy_options *options) {
     bool server_started = false;
     bool file_pusher_initialized = false;
     bool recorder_initialized = false;
+    bool rtp_initialized = false;
 #ifdef HAVE_V4L2
     bool v4l2_sink_initialized = false;
 #endif
@@ -420,6 +423,14 @@ scrcpy(struct scrcpy_options *options) {
         sc_demuxer_add_sink(&s->demuxer, &rec->packet_sink);
     }
 
+    struct sc_rtp *rtp = NULL;
+    if (!sc_rtp_init(&s->rtp, "rtp://127.0.0.1:1234", info->frame_size)) {
+        goto end;
+    }
+    rtp = &s->rtp;
+    rtp_initialized = true;
+    sc_demuxer_add_sink(&s->demuxer, &rtp->packet_sink);
+
     struct sc_controller *controller = NULL;
     struct sc_key_processor *kp = NULL;
     struct sc_mouse_processor *mp = NULL;
@@ -707,6 +718,10 @@ end:
         sc_controller_destroy(&s->controller);
     }
 
+    if (rtp_initialized) {
+        sc_rtp_destroy(&s->rtp);
+    }
+
     if (recorder_initialized) {
         sc_recorder_destroy(&s->recorder);
     }

app/src/server.c

@@ -19,6 +19,8 @@
 #define SC_SERVER_PATH_DEFAULT PREFIX "/share/scrcpy/" SC_SERVER_FILENAME
 #define SC_DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
 
+#define SC_ADB_PORT_DEFAULT 5555
+
 static char *
 get_server_path(void) {
 #ifdef __WINDOWS__
@@ -513,27 +515,36 @@ sc_server_on_terminated(void *userdata) {
     LOGD("Server terminated");
 }
 
-static bool
-is_tcpip_mode_enabled(struct sc_server *server, const char *serial) {
+static uint16_t
+get_adb_tcp_port(struct sc_server *server, const char *serial) {
     struct sc_intr *intr = &server->intr;
 
     char *current_port =
         sc_adb_getprop(intr, serial, "service.adb.tcp.port", SC_ADB_SILENT);
     if (!current_port) {
-        return false;
+        return 0;
     }
 
-    // Is the device is listening on TCP on port 5555?
-    bool enabled = !strcmp("5555", current_port);
+    long value;
+    bool ok = sc_str_parse_integer(current_port, &value);
     free(current_port);
-    return enabled;
+    if (!ok) {
+        return 0;
+    }
+
+    if (value < 0 || value > 0xFFFF) {
+        return 0;
+    }
+
+    return value;
 }
 
 static bool
 wait_tcpip_mode_enabled(struct sc_server *server, const char *serial,
-                        unsigned attempts, sc_tick delay) {
-    if (is_tcpip_mode_enabled(server, serial)) {
-        LOGI("TCP/IP mode enabled");
+                        uint16_t expected_port, unsigned attempts,
+                        sc_tick delay) {
+    uint16_t adb_port = get_adb_tcp_port(server, serial);
+    if (adb_port == expected_port) {
         return true;
     }
 
@@ -547,28 +558,23 @@ wait_tcpip_mode_enabled(struct sc_server *server, const char *serial,
             return false;
         }
 
-        if (is_tcpip_mode_enabled(server, serial)) {
-            LOGI("TCP/IP mode enabled");
+        adb_port = get_adb_tcp_port(server, serial);
+        if (adb_port == expected_port) {
             return true;
         }
     } while (--attempts);
     return false;
 }
 
-char *
-append_port_5555(const char *ip) {
-    size_t len = strlen(ip);
-
-    // sizeof counts the final '\0'
-    char *ip_port = malloc(len + sizeof(":5555"));
-    if (!ip_port) {
+static char *
+append_port(const char *ip, uint16_t port) {
+    char *ip_port;
+    int ret = asprintf(&ip_port, "%s:%" PRIu16, ip, port);
+    if (ret == -1) {
         LOG_OOM();
         return NULL;
     }
 
-    memcpy(ip_port, ip, len);
-    memcpy(ip_port + len, ":5555", sizeof(":5555"));
-
     return ip_port;
 }
 
@@ -586,34 +592,36 @@ sc_server_switch_to_tcpip(struct sc_server *server, const char *serial) {
         return NULL;
     }
 
-    char *ip_port = append_port_5555(ip);
-    free(ip);
-    if (!ip_port) {
-        return NULL;
-    }
+    uint16_t adb_port = get_adb_tcp_port(server, serial);
+    if (adb_port) {
+        LOGI("TCP/IP mode already enabled on port %" PRIu16, adb_port);
+    } else {
+        LOGI("Enabling TCP/IP mode on port " SC_STR(SC_ADB_PORT_DEFAULT) "...");
 
-    bool tcp_mode = is_tcpip_mode_enabled(server, serial);
-
-    if (!tcp_mode) {
-        bool ok = sc_adb_tcpip(intr, serial, 5555, SC_ADB_NO_STDOUT);
+        bool ok = sc_adb_tcpip(intr, serial, SC_ADB_PORT_DEFAULT,
+                               SC_ADB_NO_STDOUT);
         if (!ok) {
             LOGE("Could not restart adbd in TCP/IP mode");
-            goto error;
+            free(ip);
+            return NULL;
         }
 
         unsigned attempts = 40;
         sc_tick delay = SC_TICK_FROM_MS(250);
-        ok = wait_tcpip_mode_enabled(server, serial, attempts, delay);
+        ok = wait_tcpip_mode_enabled(server, serial, SC_ADB_PORT_DEFAULT,
+                                     attempts, delay);
         if (!ok) {
-            goto error;
+            free(ip);
+            return NULL;
         }
+
+        adb_port = SC_ADB_PORT_DEFAULT;
+        LOGI("TCP/IP mode enabled on port " SC_STR(SC_ADB_PORT_DEFAULT));
     }
 
+    char *ip_port = append_port(ip, adb_port);
+    free(ip);
     return ip_port;
-
-error:
-    free(ip_port);
-    return NULL;
 }
 
 static bool
@@ -640,7 +648,8 @@ sc_server_configure_tcpip_known_address(struct sc_server *server,
                                         const char *addr) {
     // Append ":5555" if no port is present
     bool contains_port = strchr(addr, ':');
-    char *ip_port = contains_port ? strdup(addr) : append_port_5555(addr);
+    char *ip_port = contains_port ? strdup(addr)
+                                  : append_port(addr, SC_ADB_PORT_DEFAULT);
     if (!ip_port) {
         LOG_OOM();
         return false;

app/src/sys/unix/process.c

@@ -92,8 +92,14 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid, unsigned flags,
                 close(in[0]);
             }
             close(in[1]);
+        } else {
+            int devnull = open("/dev/null", O_RDONLY | O_CREAT, 0666);
+            if (devnull != -1) {
+                dup2(devnull, STDIN_FILENO);
+            } else {
+                LOGE("Could not open /dev/null for stdin");
+            }
         }
-        // Do not close stdin in the child process, this makes adb fail on Linux
 
         if (pout) {
             if (out[1] != STDOUT_FILENO) {
@@ -102,8 +108,12 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid, unsigned flags,
             }
             close(out[0]);
         } else if (!inherit_stdout) {
-            // Close stdout in the child process
-            close(STDOUT_FILENO);
+            int devnull = open("/dev/null", O_WRONLY | O_CREAT, 0666);
+            if (devnull != -1) {
+                dup2(devnull, STDOUT_FILENO);
+            } else {
+                LOGE("Could not open /dev/null for stdout");
+            }
         }
 
         if (perr) {
@@ -113,8 +123,12 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid, unsigned flags,
             }
             close(err[0]);
         } else if (!inherit_stderr) {
-            // Close stderr in the child process
-            close(STDERR_FILENO);
+            int devnull = open("/dev/null", O_WRONLY | O_CREAT, 0666);
+            if (devnull != -1) {
+                dup2(devnull, STDERR_FILENO);
+            } else {
+                LOGE("Could not open /dev/null for stderr");
+            }
         }
 
         close(internal[0]);

app/src/util/binary.h

@@ -1,8 +1,9 @@
-#ifndef SC_BUFFER_UTIL_H
-#define SC_BUFFER_UTIL_H
+#ifndef SC_BINARY_H
+#define SC_BINARY_H
 
 #include "common.h"
 
+#include <assert.h>
 #include <stdbool.h>
 #include <stdint.h>
 
@@ -43,4 +44,33 @@ sc_read64be(const uint8_t *buf) {
     return ((uint64_t) msb << 32) | lsb;
 }
 
+/**
+ * Convert a float between 0 and 1 to an unsigned 16-bit fixed-point value
+ */
+static inline uint16_t
+sc_float_to_u16fp(float f) {
+    assert(f >= 0.0f && f <= 1.0f);
+    uint32_t u = f * 0x1p16f; // 2^16
+    if (u >= 0xffff) {
+        assert(u == 0x10000); // for f == 1.0f
+        u = 0xffff;
+    }
+    return (uint16_t) u;
+}
+
+/**
+ * Convert a float between -1 and 1 to a signed 16-bit fixed-point value
+ */
+static inline int16_t
+sc_float_to_i16fp(float f) {
+    assert(f >= -1.0f && f <= 1.0f);
+    int32_t i = f * 0x1p15f; // 2^15
+    assert(i >= -0x8000);
+    if (i >= 0x7fff) {
+        assert(i == 0x8000); // for f == 1.0f
+        i = 0x7fff;
+    }
+    return (int16_t) i;
+}
+
 #endif

app/src/util/net.c

@@ -159,8 +159,8 @@ net_connect(sc_socket socket, uint32_t addr, uint16_t port) {
 }
 
 bool
-net_listen(sc_socket socket, uint32_t addr, uint16_t port, int backlog) {
-    sc_raw_socket raw_sock = unwrap(socket);
+net_listen(sc_socket server_socket, uint32_t addr, uint16_t port, int backlog) {
+    sc_raw_socket raw_sock = unwrap(server_socket);
 
     int reuse = 1;
     if (setsockopt(raw_sock, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuse,

app/src/util/net.h

@@ -39,7 +39,7 @@ bool
 net_connect(sc_socket socket, uint32_t addr, uint16_t port);
 
 bool
-net_listen(sc_socket socket, uint32_t addr, uint16_t port, int backlog);
+net_listen(sc_socket server_socket, uint32_t addr, uint16_t port, int backlog);
 
 sc_socket
 net_accept(sc_socket server_socket);

app/src/util/net_intr.c

@@ -15,14 +15,14 @@ net_connect_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
 }
 
 bool
-net_listen_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
+net_listen_intr(struct sc_intr *intr, sc_socket server_socket, uint32_t addr,
                 uint16_t port, int backlog) {
-    if (!sc_intr_set_socket(intr, socket)) {
+    if (!sc_intr_set_socket(intr, server_socket)) {
         // Already interrupted
         return false;
     }
 
-    bool ret = net_listen(socket, addr, port, backlog);
+    bool ret = net_listen(server_socket, addr, port, backlog);
 
     sc_intr_set_socket(intr, SC_SOCKET_NONE);
     return ret;

app/src/util/net_intr.h

@@ -11,7 +11,7 @@ net_connect_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
                  uint16_t port);
 
 bool
-net_listen_intr(struct sc_intr *intr, sc_socket socket, uint32_t addr,
+net_listen_intr(struct sc_intr *intr, sc_socket server_socket, uint32_t addr,
                 uint16_t port, int backlog);
 
 sc_socket

app/src/util/str.h

@@ -6,6 +6,10 @@
 #include <stdbool.h>
 #include <stddef.h>
 
+/* Stringify a numeric value  */
+#define SC_STR(s) SC_XSTR(s)
+#define SC_XSTR(s) #s
+
 /**
  * Like strncpy(), except:
  *  - it copies at most n-1 chars

app/src/util/thread.c

@@ -1,6 +1,7 @@
 #include "thread.h"
 
 #include <assert.h>
+#include <string.h>
 #include <SDL2/SDL_thread.h>
 
 #include "log.h"

app/src/util/vector.h

@@ -6,6 +6,7 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>
+#include <string.h>
 
 // Adapted from vlc_vector:
 // <https://code.videolan.org/videolan/vlc/-/blob/0857947abaed9c89810cd96353aaa1b7e6ba3b0d/include/vlc_vector.h>

app/tests/test_binary.c

@@ -0,0 +1,114 @@
+#include "common.h"
+
+#include <assert.h>
+
+#include "util/binary.h"
+
+static void test_write16be(void) {
+    uint16_t val = 0xABCD;
+    uint8_t buf[2];
+
+    sc_write16be(buf, val);
+
+    assert(buf[0] == 0xAB);
+    assert(buf[1] == 0xCD);
+}
+
+static void test_write32be(void) {
+    uint32_t val = 0xABCD1234;
+    uint8_t buf[4];
+
+    sc_write32be(buf, val);
+
+    assert(buf[0] == 0xAB);
+    assert(buf[1] == 0xCD);
+    assert(buf[2] == 0x12);
+    assert(buf[3] == 0x34);
+}
+
+static void test_write64be(void) {
+    uint64_t val = 0xABCD1234567890EF;
+    uint8_t buf[8];
+
+    sc_write64be(buf, val);
+
+    assert(buf[0] == 0xAB);
+    assert(buf[1] == 0xCD);
+    assert(buf[2] == 0x12);
+    assert(buf[3] == 0x34);
+    assert(buf[4] == 0x56);
+    assert(buf[5] == 0x78);
+    assert(buf[6] == 0x90);
+    assert(buf[7] == 0xEF);
+}
+
+static void test_read16be(void) {
+    uint8_t buf[2] = {0xAB, 0xCD};
+
+    uint16_t val = sc_read16be(buf);
+
+    assert(val == 0xABCD);
+}
+
+static void test_read32be(void) {
+    uint8_t buf[4] = {0xAB, 0xCD, 0x12, 0x34};
+
+    uint32_t val = sc_read32be(buf);
+
+    assert(val == 0xABCD1234);
+}
+
+static void test_read64be(void) {
+    uint8_t buf[8] = {0xAB, 0xCD, 0x12, 0x34,
+                      0x56, 0x78, 0x90, 0xEF};
+
+    uint64_t val = sc_read64be(buf);
+
+    assert(val == 0xABCD1234567890EF);
+}
+
+static void test_float_to_u16fp(void) {
+    assert(sc_float_to_u16fp(0.0f) == 0);
+    assert(sc_float_to_u16fp(0.03125f) == 0x800);
+    assert(sc_float_to_u16fp(0.0625f) == 0x1000);
+    assert(sc_float_to_u16fp(0.125f) == 0x2000);
+    assert(sc_float_to_u16fp(0.25f) == 0x4000);
+    assert(sc_float_to_u16fp(0.5f) == 0x8000);
+    assert(sc_float_to_u16fp(0.75f) == 0xc000);
+    assert(sc_float_to_u16fp(1.0f) == 0xffff);
+}
+
+static void test_float_to_i16fp(void) {
+    assert(sc_float_to_i16fp(0.0f) == 0);
+    assert(sc_float_to_i16fp(0.03125f) == 0x400);
+    assert(sc_float_to_i16fp(0.0625f) == 0x800);
+    assert(sc_float_to_i16fp(0.125f) == 0x1000);
+    assert(sc_float_to_i16fp(0.25f) == 0x2000);
+    assert(sc_float_to_i16fp(0.5f) == 0x4000);
+    assert(sc_float_to_i16fp(0.75f) == 0x6000);
+    assert(sc_float_to_i16fp(1.0f) == 0x7fff);
+
+    assert(sc_float_to_i16fp(-0.03125f) == -0x400);
+    assert(sc_float_to_i16fp(-0.0625f) == -0x800);
+    assert(sc_float_to_i16fp(-0.125f) == -0x1000);
+    assert(sc_float_to_i16fp(-0.25f) == -0x2000);
+    assert(sc_float_to_i16fp(-0.5f) == -0x4000);
+    assert(sc_float_to_i16fp(-0.75f) == -0x6000);
+    assert(sc_float_to_i16fp(-1.0f) == -0x8000);
+}
+
+int main(int argc, char *argv[]) {
+    (void) argc;
+    (void) argv;
+
+    test_write16be();
+    test_write32be();
+    test_write64be();
+    test_read16be();
+    test_read32be();
+    test_read64be();
+
+    test_float_to_u16fp();
+    test_float_to_i16fp();
+    return 0;
+}

app/tests/test_buffer_util.c

@@ -1,81 +0,0 @@
-#include "common.h"
-
-#include <assert.h>
-
-#include "util/buffer_util.h"
-
-static void test_buffer_write16be(void) {
-    uint16_t val = 0xABCD;
-    uint8_t buf[2];
-
-    sc_write16be(buf, val);
-
-    assert(buf[0] == 0xAB);
-    assert(buf[1] == 0xCD);
-}
-
-static void test_buffer_write32be(void) {
-    uint32_t val = 0xABCD1234;
-    uint8_t buf[4];
-
-    sc_write32be(buf, val);
-
-    assert(buf[0] == 0xAB);
-    assert(buf[1] == 0xCD);
-    assert(buf[2] == 0x12);
-    assert(buf[3] == 0x34);
-}
-
-static void test_buffer_write64be(void) {
-    uint64_t val = 0xABCD1234567890EF;
-    uint8_t buf[8];
-
-    sc_write64be(buf, val);
-
-    assert(buf[0] == 0xAB);
-    assert(buf[1] == 0xCD);
-    assert(buf[2] == 0x12);
-    assert(buf[3] == 0x34);
-    assert(buf[4] == 0x56);
-    assert(buf[5] == 0x78);
-    assert(buf[6] == 0x90);
-    assert(buf[7] == 0xEF);
-}
-
-static void test_buffer_read16be(void) {
-    uint8_t buf[2] = {0xAB, 0xCD};
-
-    uint16_t val = sc_read16be(buf);
-
-    assert(val == 0xABCD);
-}
-
-static void test_buffer_read32be(void) {
-    uint8_t buf[4] = {0xAB, 0xCD, 0x12, 0x34};
-
-    uint32_t val = sc_read32be(buf);
-
-    assert(val == 0xABCD1234);
-}
-
-static void test_buffer_read64be(void) {
-    uint8_t buf[8] = {0xAB, 0xCD, 0x12, 0x34,
-                      0x56, 0x78, 0x90, 0xEF};
-
-    uint64_t val = sc_read64be(buf);
-
-    assert(val == 0xABCD1234567890EF);
-}
-
-int main(int argc, char *argv[]) {
-    (void) argc;
-    (void) argv;
-
-    test_buffer_write16be();
-    test_buffer_write32be();
-    test_buffer_write64be();
-    test_buffer_read16be();
-    test_buffer_read32be();
-    test_buffer_read64be();
-    return 0;
-}

app/tests/test_control_msg_serialize.c

@@ -132,14 +132,14 @@ static void test_serialize_inject_scroll_event(void) {
 
     unsigned char buf[SC_CONTROL_MSG_MAX_SIZE];
     size_t size = sc_control_msg_serialize(&msg, buf);
-    assert(size == 25);
+    assert(size == 21);
 
     const unsigned char expected[] = {
         SC_CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
         0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x04, 0x02, // 260 1026
         0x04, 0x38, 0x07, 0x80, // 1080 1920
-        0x00, 0x00, 0x00, 0x01, // 1
-        0xFF, 0xFF, 0xFF, 0xFF, // -1
+        0x7F, 0xFF, // 1 (float encoded as i16)
+        0x80, 0x00, // -1 (float encoded as i16)
         0x00, 0x00, 0x00, 0x01, // 1
     };
     assert(!memcmp(buf, expected, sizeof(expected)));

build.gradle

@@ -4,10 +4,10 @@ buildscript {
 
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.3'
+        classpath 'com.android.tools.build:gradle:7.2.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -17,7 +17,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     tasks.withType(JavaCompile) {
         options.compilerArgs << "-Xlint:deprecation"

cross_win32.txt

@@ -22,4 +22,4 @@ ffmpeg_avutil = 'avutil-56'
 prebuilt_ffmpeg = 'ffmpeg-win32-4.3.1'
 prebuilt_sdl2 = 'SDL2-2.0.22/i686-w64-mingw32'
 prebuilt_libusb_root = 'libusb-1.0.26'
-prebuilt_libusb = prebuilt_libusb_root + '/MinGW-Win32'
+prebuilt_libusb = 'libusb-1.0.26/MinGW-Win32'

cross_win64.txt

@@ -22,4 +22,4 @@ ffmpeg_avutil = 'avutil-57'
 prebuilt_ffmpeg = 'ffmpeg-win64-5.0.1'
 prebuilt_sdl2 = 'SDL2-2.0.22/x86_64-w64-mingw32'
 prebuilt_libusb_root = 'libusb-1.0.26'
-prebuilt_libusb = prebuilt_libusb_root + '/MinGW-x64'
+prebuilt_libusb = 'libusb-1.0.26/MinGW-x64'

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

server/build.gradle

@@ -1,11 +1,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 31
+    compileSdkVersion 33
     defaultConfig {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
-        targetSdkVersion 31
+        targetSdkVersion 33
         versionCode 12400
         versionName "1.24"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

server/build_without_gradle.sh

@@ -14,8 +14,9 @@ set -e
 SCRCPY_DEBUG=false
 SCRCPY_VERSION_NAME=1.24
 
-PLATFORM=${ANDROID_PLATFORM:-31}
-BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-31.0.0}
+PLATFORM=${ANDROID_PLATFORM:-33}
+BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-33.0.0}
+BUILD_TOOLS_DIR="$ANDROID_HOME/build-tools/$BUILD_TOOLS"
 
 BUILD_DIR="$(realpath ${BUILD_DIR:-build_manual})"
 CLASSES_DIR="$BUILD_DIR/classes"
@@ -41,9 +42,8 @@ EOF
 
 echo "Generating java from aidl..."
 cd "$SERVER_DIR/src/main/aidl"
-"$ANDROID_HOME/build-tools/$BUILD_TOOLS/aidl" -o"$CLASSES_DIR" \
-    android/view/IRotationWatcher.aidl
-"$ANDROID_HOME/build-tools/$BUILD_TOOLS/aidl" -o"$CLASSES_DIR" \
+"$BUILD_TOOLS_DIR/aidl" -o"$CLASSES_DIR" android/view/IRotationWatcher.aidl
+"$BUILD_TOOLS_DIR/aidl" -o"$CLASSES_DIR" \
     android/content/IOnPrimaryClipChangedListener.aidl
 
 echo "Compiling java sources..."
@@ -59,8 +59,7 @@ cd "$CLASSES_DIR"
 if [[ $PLATFORM -lt 31 ]]
 then
     # use dx
-    "$ANDROID_HOME/build-tools/$BUILD_TOOLS/dx" --dex \
-        --output "$BUILD_DIR/classes.dex" \
+    "$BUILD_TOOLS_DIR/dx" --dex --output "$BUILD_DIR/classes.dex" \
         android/view/*.class \
         android/content/*.class \
         com/genymobile/scrcpy/*.class \
@@ -72,7 +71,7 @@ then
     rm -rf classes.dex classes
 else
     # use d8
-    "$ANDROID_HOME/build-tools/$BUILD_TOOLS/d8" --classpath "$ANDROID_JAR" \
+    "$BUILD_TOOLS_DIR/d8" --classpath "$ANDROID_JAR" \
         --output "$BUILD_DIR/classes.zip" \
         android/view/*.class \
         android/content/*.class \

server/meson.build

@@ -13,8 +13,8 @@ if prebuilt_server == ''
                   install_dir: 'share/scrcpy')
 else
     if not prebuilt_server.startswith('/')
-        # relative path needs some trick
-        prebuilt_server = meson.source_root() + '/' + prebuilt_server
+        # prebuilt server path is relative to the root scrcpy directory
+        prebuilt_server = '../' + prebuilt_server
     endif
     custom_target('scrcpy-server-prebuilt',
                   input: prebuilt_server,

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

@@ -0,0 +1,38 @@
+package com.genymobile.scrcpy;
+
+public final class Binary {
+    private Binary() {
+        // not instantiable
+    }
+
+    public static int toUnsigned(short value) {
+        return value & 0xffff;
+    }
+
+    public static int toUnsigned(byte value) {
+        return value & 0xff;
+    }
+
+    /**
+     * Convert unsigned 16-bit fixed-point to a float between 0 and 1
+     *
+     * @param value encoded value
+     * @return Float value between 0 and 1
+     */
+    public static float u16FixedPointToFloat(short value) {
+        int unsignedShort = Binary.toUnsigned(value);
+        // 0x1p16f is 2^16 as float
+        return unsignedShort == 0xffff ? 1f : (unsignedShort / 0x1p16f);
+    }
+
+    /**
+     * Convert signed 16-bit fixed-point to a float between -1 and 1
+     *
+     * @param value encoded value
+     * @return Float value between -1 and 1
+     */
+    public static float i16FixedPointToFloat(short value) {
+        // 0x1p15f is 2^15 as float
+        return value == 0x7fff ? 1f : (value / 0x1p15f);
+    }
+}

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

@@ -1,7 +1,5 @@
 package com.genymobile.scrcpy;
 
-import com.genymobile.scrcpy.wrappers.ServiceManager;
-
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Base64;
@@ -164,12 +162,10 @@ public final class CleanUp {
         Config config = Config.fromBase64(args[0]);
 
         if (config.disableShowTouches || config.restoreStayOn != -1) {
-            ServiceManager serviceManager = new ServiceManager();
-            Settings settings = new Settings(serviceManager);
             if (config.disableShowTouches) {
                 Ln.i("Disabling \"show touches\"");
                 try {
-                    settings.putValue(Settings.TABLE_SYSTEM, "show_touches", "0");
+                    Settings.putValue(Settings.TABLE_SYSTEM, "show_touches", "0");
                 } catch (SettingsException e) {
                     Ln.e("Could not restore \"show_touches\"", e);
                 }
@@ -177,7 +173,7 @@ public final class CleanUp {
             if (config.restoreStayOn != -1) {
                 Ln.i("Restoring \"stay awake\"");
                 try {
-                    settings.putValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
+                    Settings.putValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
                 } catch (SettingsException e) {
                     Ln.e("Could not restore \"stay_on_while_plugged_in\"", e);
                 }

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

@@ -30,4 +30,14 @@ public final class Command {
         }
         return result;
     }
+
+    public static String execReadOutput(String... cmd) throws IOException, InterruptedException {
+        Process process = Runtime.getRuntime().exec(cmd);
+        String output = IO.toString(process.getInputStream());
+        int exitCode = process.waitFor();
+        if (exitCode != 0) {
+            throw new IOException("Command " + Arrays.toString(cmd) + " returned with value " + exitCode);
+        }
+        return output;
+    }
 }

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

@@ -33,8 +33,8 @@ public final class ControlMessage {
     private long pointerId;
     private float pressure;
     private Position position;
-    private int hScroll;
-    private int vScroll;
+    private float hScroll;
+    private float vScroll;
     private int copyKey;
     private boolean paste;
     private int repeat;
@@ -71,7 +71,7 @@ public final class ControlMessage {
         return msg;
     }
 
-    public static ControlMessage createInjectScrollEvent(Position position, int hScroll, int vScroll, int buttons) {
+    public static ControlMessage createInjectScrollEvent(Position position, float hScroll, float vScroll, int buttons) {
         ControlMessage msg = new ControlMessage();
         msg.type = TYPE_INJECT_SCROLL_EVENT;
         msg.position = position;
@@ -156,11 +156,11 @@ public final class ControlMessage {
         return position;
     }
 
-    public int getHScroll() {
+    public float getHScroll() {
         return hScroll;
     }
 
-    public int getVScroll() {
+    public float getVScroll() {
         return vScroll;
     }
 

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

@@ -10,7 +10,7 @@ public class ControlMessageReader {
 
     static final int INJECT_KEYCODE_PAYLOAD_LENGTH = 13;
     static final int INJECT_TOUCH_EVENT_PAYLOAD_LENGTH = 27;
-    static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 24;
+    static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 20;
     static final int BACK_OR_SCREEN_ON_LENGTH = 1;
     static final int SET_SCREEN_POWER_MODE_PAYLOAD_LENGTH = 1;
     static final int GET_CLIPBOARD_LENGTH = 1;
@@ -103,7 +103,7 @@ public class ControlMessageReader {
         if (buffer.remaining() < INJECT_KEYCODE_PAYLOAD_LENGTH) {
             return null;
         }
-        int action = toUnsigned(buffer.get());
+        int action = Binary.toUnsigned(buffer.get());
         int keycode = buffer.getInt();
         int repeat = buffer.getInt();
         int metaState = buffer.getInt();
@@ -136,13 +136,10 @@ public class ControlMessageReader {
         if (buffer.remaining() < INJECT_TOUCH_EVENT_PAYLOAD_LENGTH) {
             return null;
         }
-        int action = toUnsigned(buffer.get());
+        int action = Binary.toUnsigned(buffer.get());
         long pointerId = buffer.getLong();
         Position position = readPosition(buffer);
-        // 16 bits fixed-point
-        int pressureInt = toUnsigned(buffer.getShort());
-        // convert it to a float between 0 and 1 (0x1p16f is 2^16 as float)
-        float pressure = pressureInt == 0xffff ? 1f : (pressureInt / 0x1p16f);
+        float pressure = Binary.u16FixedPointToFloat(buffer.getShort());
         int buttons = buffer.getInt();
         return ControlMessage.createInjectTouchEvent(action, pointerId, position, pressure, buttons);
     }
@@ -152,8 +149,8 @@ public class ControlMessageReader {
             return null;
         }
         Position position = readPosition(buffer);
-        int hScroll = buffer.getInt();
-        int vScroll = buffer.getInt();
+        float hScroll = Binary.i16FixedPointToFloat(buffer.getShort());
+        float vScroll = Binary.i16FixedPointToFloat(buffer.getShort());
         int buttons = buffer.getInt();
         return ControlMessage.createInjectScrollEvent(position, hScroll, vScroll, buttons);
     }
@@ -162,7 +159,7 @@ public class ControlMessageReader {
         if (buffer.remaining() < BACK_OR_SCREEN_ON_LENGTH) {
             return null;
         }
-        int action = toUnsigned(buffer.get());
+        int action = Binary.toUnsigned(buffer.get());
         return ControlMessage.createBackOrScreenOn(action);
     }
 
@@ -170,7 +167,7 @@ public class ControlMessageReader {
         if (buffer.remaining() < GET_CLIPBOARD_LENGTH) {
             return null;
         }
-        int copyKey = toUnsigned(buffer.get());
+        int copyKey = Binary.toUnsigned(buffer.get());
         return ControlMessage.createGetClipboard(copyKey);
     }
 
@@ -198,16 +195,8 @@ public class ControlMessageReader {
     private static Position readPosition(ByteBuffer buffer) {
         int x = buffer.getInt();
         int y = buffer.getInt();
-        int screenWidth = toUnsigned(buffer.getShort());
-        int screenHeight = toUnsigned(buffer.getShort());
+        int screenWidth = Binary.toUnsigned(buffer.getShort());
+        int screenHeight = Binary.toUnsigned(buffer.getShort());
         return new Position(x, y, screenWidth, screenHeight);
     }
-
-    private static int toUnsigned(short value) {
-        return value & 0xffff;
-    }
-
-    private static int toUnsigned(byte value) {
-        return value & 0xff;
-    }
 }

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

@@ -223,7 +223,7 @@ public class Controller {
         return device.injectEvent(event, Device.INJECT_MODE_ASYNC);
     }
 
-    private boolean injectScroll(Position position, int hScroll, int vScroll, int buttons) {
+    private boolean injectScroll(Position position, float hScroll, float vScroll, int buttons) {
         long now = SystemClock.uptimeMillis();
         Point point = device.getPhysicalPoint(position);
         if (point == null) {

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

@@ -31,9 +31,6 @@ public final class Device {
     public static final int LOCK_VIDEO_ORIENTATION_UNLOCKED = -1;
     public static final int LOCK_VIDEO_ORIENTATION_INITIAL = -2;
 
-    private static final ServiceManager SERVICE_MANAGER = new ServiceManager();
-    private static final Settings SETTINGS = new Settings(SERVICE_MANAGER);
-
     public interface RotationListener {
         void onRotationChanged(int rotation);
     }
@@ -66,9 +63,9 @@ public final class Device {
 
     public Device(Options options) {
         displayId = options.getDisplayId();
-        DisplayInfo displayInfo = SERVICE_MANAGER.getDisplayManager().getDisplayInfo(displayId);
+        DisplayInfo displayInfo = ServiceManager.getDisplayManager().getDisplayInfo(displayId);
         if (displayInfo == null) {
-            int[] displayIds = SERVICE_MANAGER.getDisplayManager().getDisplayIds();
+            int[] displayIds = ServiceManager.getDisplayManager().getDisplayIds();
             throw new InvalidDisplayIdException(displayId, displayIds);
         }
 
@@ -82,7 +79,7 @@ public final class Device {
         screenInfo = ScreenInfo.computeScreenInfo(displayInfo.getRotation(), deviceSize, crop, maxSize, lockVideoOrientation);
         layerStack = displayInfo.getLayerStack();
 
-        SERVICE_MANAGER.getWindowManager().registerRotationWatcher(new IRotationWatcher.Stub() {
+        ServiceManager.getWindowManager().registerRotationWatcher(new IRotationWatcher.Stub() {
             @Override
             public void onRotationChanged(int rotation) {
                 synchronized (Device.this) {
@@ -98,7 +95,7 @@ public final class Device {
 
         if (options.getControl() && options.getClipboardAutosync()) {
             // If control and autosync are enabled, synchronize Android clipboard to the computer automatically
-            ClipboardManager clipboardManager = SERVICE_MANAGER.getClipboardManager();
+            ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
             if (clipboardManager != null) {
                 clipboardManager.addPrimaryClipChangedListener(new IOnPrimaryClipChangedListener.Stub() {
                     @Override
@@ -192,7 +189,7 @@ public final class Device {
             return false;
         }
 
-        return SERVICE_MANAGER.getInputManager().injectInputEvent(inputEvent, injectMode);
+        return ServiceManager.getInputManager().injectInputEvent(inputEvent, injectMode);
     }
 
     public boolean injectEvent(InputEvent event, int injectMode) {
@@ -220,7 +217,7 @@ public final class Device {
     }
 
     public static boolean isScreenOn() {
-        return SERVICE_MANAGER.getPowerManager().isScreenOn();
+        return ServiceManager.getPowerManager().isScreenOn();
     }
 
     public synchronized void setRotationListener(RotationListener rotationListener) {
@@ -232,19 +229,19 @@ public final class Device {
     }
 
     public static void expandNotificationPanel() {
-        SERVICE_MANAGER.getStatusBarManager().expandNotificationsPanel();
+        ServiceManager.getStatusBarManager().expandNotificationsPanel();
     }
 
     public static void expandSettingsPanel() {
-        SERVICE_MANAGER.getStatusBarManager().expandSettingsPanel();
+        ServiceManager.getStatusBarManager().expandSettingsPanel();
     }
 
     public static void collapsePanels() {
-        SERVICE_MANAGER.getStatusBarManager().collapsePanels();
+        ServiceManager.getStatusBarManager().collapsePanels();
     }
 
     public static String getClipboardText() {
-        ClipboardManager clipboardManager = SERVICE_MANAGER.getClipboardManager();
+        ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
         if (clipboardManager == null) {
             return null;
         }
@@ -256,7 +253,7 @@ public final class Device {
     }
 
     public boolean setClipboardText(String text) {
-        ClipboardManager clipboardManager = SERVICE_MANAGER.getClipboardManager();
+        ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
         if (clipboardManager == null) {
             return false;
         }
@@ -299,7 +296,7 @@ public final class Device {
      * Disable auto-rotation (if enabled), set the screen rotation and re-enable auto-rotation (if it was enabled).
      */
     public static void rotateDevice() {
-        WindowManager wm = SERVICE_MANAGER.getWindowManager();
+        WindowManager wm = ServiceManager.getWindowManager();
 
         boolean accelerometerRotation = !wm.isRotationFrozen();
 
@@ -315,8 +312,4 @@ public final class Device {
             wm.thawRotation();
         }
     }
-
-    public static Settings getSettings() {
-        return SETTINGS;
-    }
 }

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

@@ -6,7 +6,9 @@ import android.system.OsConstants;
 
 import java.io.FileDescriptor;
 import java.io.IOException;
+import java.io.InputStream;
 import java.nio.ByteBuffer;
+import java.util.Scanner;
 
 public final class IO {
     private IO() {
@@ -37,4 +39,13 @@ public final class IO {
     public static void writeFully(FileDescriptor fd, byte[] buffer, int offset, int len) throws IOException {
         writeFully(fd, ByteBuffer.wrap(buffer, offset, len));
     }
+
+    public static String toString(InputStream inputStream) {
+        StringBuilder builder = new StringBuilder();
+        Scanner scanner = new Scanner(inputStream);
+        while (scanner.hasNextLine()) {
+            builder.append(scanner.nextLine()).append('\n');
+        }
+        return builder.toString();
+    }
 }

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

@@ -20,10 +20,9 @@ public final class Server {
         int restoreStayOn = -1;
         boolean restoreNormalPowerMode = options.getControl(); // only restore power mode if control is enabled
         if (options.getShowTouches() || options.getStayAwake()) {
-            Settings settings = Device.getSettings();
             if (options.getShowTouches()) {
                 try {
-                    String oldValue = settings.getAndPutValue(Settings.TABLE_SYSTEM, "show_touches", "1");
+                    String oldValue = Settings.getAndPutValue(Settings.TABLE_SYSTEM, "show_touches", "1");
                     // If "show touches" was disabled, it must be disabled back on clean up
                     mustDisableShowTouchesOnCleanUp = !"1".equals(oldValue);
                 } catch (SettingsException e) {
@@ -34,7 +33,7 @@ public final class Server {
             if (options.getStayAwake()) {
                 int stayOn = BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB | BatteryManager.BATTERY_PLUGGED_WIRELESS;
                 try {
-                    String oldValue = settings.getAndPutValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
+                    String oldValue = Settings.getAndPutValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
                     try {
                         restoreStayOn = Integer.parseInt(oldValue);
                         if (restoreStayOn == stayOn) {

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

@@ -7,16 +7,14 @@ import android.os.Build;
 
 import java.io.IOException;
 
-public class Settings {
+public final class Settings {
 
     public static final String TABLE_SYSTEM = ContentProvider.TABLE_SYSTEM;
     public static final String TABLE_SECURE = ContentProvider.TABLE_SECURE;
     public static final String TABLE_GLOBAL = ContentProvider.TABLE_GLOBAL;
 
-    private final ServiceManager serviceManager;
-
-    public Settings(ServiceManager serviceManager) {
-        this.serviceManager = serviceManager;
+    private Settings() {
+        /* not instantiable */
     }
 
     private static void execSettingsPut(String table, String key, String value) throws SettingsException {
@@ -35,10 +33,10 @@ public class Settings {
         }
     }
 
-    public String getValue(String table, String key) throws SettingsException {
+    public static String getValue(String table, String key) throws SettingsException {
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
             // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
+            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
                 return provider.getValue(table, key);
             } catch (SettingsException e) {
                 Ln.w("Could not get settings value via ContentProvider, fallback to settings process", e);
@@ -48,10 +46,10 @@ public class Settings {
         return execSettingsGet(table, key);
     }
 
-    public void putValue(String table, String key, String value) throws SettingsException {
+    public static void putValue(String table, String key, String value) throws SettingsException {
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
             // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
+            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
                 provider.putValue(table, key, value);
             } catch (SettingsException e) {
                 Ln.w("Could not put settings value via ContentProvider, fallback to settings process", e);
@@ -61,10 +59,10 @@ public class Settings {
         execSettingsPut(table, key, value);
     }
 
-    public String getAndPutValue(String table, String key, String value) throws SettingsException {
+    public static String getAndPutValue(String table, String key, String value) throws SettingsException {
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
             // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
+            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
                 String oldValue = provider.getValue(table, key);
                 if (!value.equals(oldValue)) {
                     provider.putValue(table, key, value);

server/src/main/java/com/genymobile/scrcpy/wrappers/ClipboardManager.java

@@ -15,6 +15,9 @@ public class ClipboardManager {
     private Method getPrimaryClipMethod;
     private Method setPrimaryClipMethod;
     private Method addPrimaryClipChangedListener;
+    private boolean alternativeGetMethod;
+    private boolean alternativeSetMethod;
+    private boolean alternativeAddListenerMethod;
 
     public ClipboardManager(IInterface manager) {
         this.manager = manager;
@@ -25,7 +28,12 @@ public class ClipboardManager {
             if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
                 getPrimaryClipMethod = manager.getClass().getMethod("getPrimaryClip", String.class);
             } else {
-                getPrimaryClipMethod = manager.getClass().getMethod("getPrimaryClip", String.class, int.class);
+                try {
+                    getPrimaryClipMethod = manager.getClass().getMethod("getPrimaryClip", String.class, int.class);
+                } catch (NoSuchMethodException e) {
+                    getPrimaryClipMethod = manager.getClass().getMethod("getPrimaryClip", String.class, String.class, int.class);
+                    alternativeGetMethod = true;
+                }
             }
         }
         return getPrimaryClipMethod;
@@ -36,23 +44,34 @@ public class ClipboardManager {
             if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
                 setPrimaryClipMethod = manager.getClass().getMethod("setPrimaryClip", ClipData.class, String.class);
             } else {
-                setPrimaryClipMethod = manager.getClass().getMethod("setPrimaryClip", ClipData.class, String.class, int.class);
+                try {
+                    setPrimaryClipMethod = manager.getClass().getMethod("setPrimaryClip", ClipData.class, String.class, int.class);
+                } catch (NoSuchMethodException e) {
+                    setPrimaryClipMethod = manager.getClass().getMethod("setPrimaryClip", ClipData.class, String.class, String.class, int.class);
+                    alternativeSetMethod = true;
+                }
             }
         }
         return setPrimaryClipMethod;
     }
 
-    private static ClipData getPrimaryClip(Method method, IInterface manager) throws InvocationTargetException, IllegalAccessException {
+    private static ClipData getPrimaryClip(Method method, boolean alternativeMethod, IInterface manager)
+            throws InvocationTargetException, IllegalAccessException {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
             return (ClipData) method.invoke(manager, ServiceManager.PACKAGE_NAME);
         }
+        if (alternativeMethod) {
+            return (ClipData) method.invoke(manager, ServiceManager.PACKAGE_NAME, null, ServiceManager.USER_ID);
+        }
         return (ClipData) method.invoke(manager, ServiceManager.PACKAGE_NAME, ServiceManager.USER_ID);
     }
 
-    private static void setPrimaryClip(Method method, IInterface manager, ClipData clipData)
+    private static void setPrimaryClip(Method method, boolean alternativeMethod, IInterface manager, ClipData clipData)
             throws InvocationTargetException, IllegalAccessException {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
             method.invoke(manager, clipData, ServiceManager.PACKAGE_NAME);
+        } else if (alternativeMethod) {
+            method.invoke(manager, clipData, ServiceManager.PACKAGE_NAME, null, ServiceManager.USER_ID);
         } else {
             method.invoke(manager, clipData, ServiceManager.PACKAGE_NAME, ServiceManager.USER_ID);
         }
@@ -61,7 +80,7 @@ public class ClipboardManager {
     public CharSequence getText() {
         try {
             Method method = getGetPrimaryClipMethod();
-            ClipData clipData = getPrimaryClip(method, manager);
+            ClipData clipData = getPrimaryClip(method, alternativeGetMethod, manager);
             if (clipData == null || clipData.getItemCount() == 0) {
                 return null;
             }
@@ -76,7 +95,7 @@ public class ClipboardManager {
         try {
             Method method = getSetPrimaryClipMethod();
             ClipData clipData = ClipData.newPlainText(null, text);
-            setPrimaryClip(method, manager, clipData);
+            setPrimaryClip(method, alternativeSetMethod, manager, clipData);
             return true;
         } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException e) {
             Ln.e("Could not invoke method", e);
@@ -84,13 +103,14 @@ public class ClipboardManager {
         }
     }
 
-    private static void addPrimaryClipChangedListener(Method method, IInterface manager, IOnPrimaryClipChangedListener listener)
-            throws InvocationTargetException, IllegalAccessException {
+    private static void addPrimaryClipChangedListener(Method method, boolean alternativeMethod, IInterface manager,
+            IOnPrimaryClipChangedListener listener) throws InvocationTargetException, IllegalAccessException {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
             method.invoke(manager, listener, ServiceManager.PACKAGE_NAME);
-        } else {
+        } else if (alternativeMethod) {
+            method.invoke(manager, listener, ServiceManager.PACKAGE_NAME, null, ServiceManager.USER_ID);
+        } else
             method.invoke(manager, listener, ServiceManager.PACKAGE_NAME, ServiceManager.USER_ID);
-        }
     }
 
     private Method getAddPrimaryClipChangedListener() throws NoSuchMethodException {
@@ -99,8 +119,14 @@ public class ClipboardManager {
                 addPrimaryClipChangedListener = manager.getClass()
                         .getMethod("addPrimaryClipChangedListener", IOnPrimaryClipChangedListener.class, String.class);
             } else {
-                addPrimaryClipChangedListener = manager.getClass()
-                        .getMethod("addPrimaryClipChangedListener", IOnPrimaryClipChangedListener.class, String.class, int.class);
+                try {
+                    addPrimaryClipChangedListener = manager.getClass()
+                            .getMethod("addPrimaryClipChangedListener", IOnPrimaryClipChangedListener.class, String.class, int.class);
+                } catch (NoSuchMethodException e) {
+                    addPrimaryClipChangedListener = manager.getClass()
+                            .getMethod("addPrimaryClipChangedListener", IOnPrimaryClipChangedListener.class, String.class, String.class, int.class);
+                    alternativeAddListenerMethod = true;
+                }
             }
         }
         return addPrimaryClipChangedListener;
@@ -109,7 +135,7 @@ public class ClipboardManager {
     public boolean addPrimaryClipChangedListener(IOnPrimaryClipChangedListener listener) {
         try {
             Method method = getAddPrimaryClipChangedListener();
-            addPrimaryClipChangedListener(method, manager, listener);
+            addPrimaryClipChangedListener(method, alternativeAddListenerMethod, manager, listener);
             return true;
         } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException e) {
             Ln.e("Could not invoke method", e);

server/src/main/java/com/genymobile/scrcpy/wrappers/DisplayManager.java

@@ -1,22 +1,78 @@
 package com.genymobile.scrcpy.wrappers;
 
+import com.genymobile.scrcpy.Command;
 import com.genymobile.scrcpy.DisplayInfo;
+import com.genymobile.scrcpy.Ln;
 import com.genymobile.scrcpy.Size;
 
-import android.os.IInterface;
+import android.view.Display;
+
+import java.lang.reflect.Field;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 public final class DisplayManager {
-    private final IInterface manager;
+    private final Object manager; // instance of hidden class android.hardware.display.DisplayManagerGlobal
 
-    public DisplayManager(IInterface manager) {
+    public DisplayManager(Object manager) {
         this.manager = manager;
     }
 
+    // public to call it from unit tests
+    public static DisplayInfo parseDisplayInfo(String dumpsysDisplayOutput, int displayId) {
+        Pattern regex = Pattern.compile(
+                "^    mOverrideDisplayInfo=DisplayInfo\\{\".*?, displayId " + displayId + ".*?(, FLAG_.*)?, real ([0-9]+) x ([0-9]+).*?, "
+                        + "rotation ([0-9]+).*?, layerStack ([0-9]+)",
+                Pattern.MULTILINE);
+        Matcher m = regex.matcher(dumpsysDisplayOutput);
+        if (!m.find()) {
+            return null;
+        }
+        int flags = parseDisplayFlags(m.group(1));
+        int width = Integer.parseInt(m.group(2));
+        int height = Integer.parseInt(m.group(3));
+        int rotation = Integer.parseInt(m.group(4));
+        int layerStack = Integer.parseInt(m.group(5));
+
+        return new DisplayInfo(displayId, new Size(width, height), rotation, layerStack, flags);
+    }
+
+    private static DisplayInfo getDisplayInfoFromDumpsysDisplay(int displayId) {
+        try {
+            String dumpsysDisplayOutput = Command.execReadOutput("dumpsys", "display");
+            return parseDisplayInfo(dumpsysDisplayOutput, displayId);
+        } catch (Exception e) {
+            Ln.e("Could not get display info from \"dumpsys display\" output", e);
+            return null;
+        }
+    }
+
+    private static int parseDisplayFlags(String text) {
+        Pattern regex = Pattern.compile("FLAG_[A-Z_]+");
+        if (text == null) {
+            return 0;
+        }
+
+        int flags = 0;
+        Matcher m = regex.matcher(text);
+        while (m.find()) {
+            String flagString = m.group();
+            try {
+                Field filed = Display.class.getDeclaredField(flagString);
+                flags |= filed.getInt(null);
+            } catch (NoSuchFieldException | IllegalAccessException e) {
+                // Silently ignore, some flags reported by "dumpsys display" are @TestApi
+            }
+        }
+        return flags;
+    }
+
     public DisplayInfo getDisplayInfo(int displayId) {
         try {
             Object displayInfo = manager.getClass().getMethod("getDisplayInfo", int.class).invoke(manager, displayId);
             if (displayInfo == null) {
-                return null;
+                // fallback when displayInfo is null
+                return getDisplayInfoFromDumpsysDisplay(displayId);
             }
             Class<?> cls = displayInfo.getClass();
             // width and height already take the rotation into account

server/src/main/java/com/genymobile/scrcpy/wrappers/ServiceManager.java

@@ -13,27 +13,30 @@ public final class ServiceManager {
     public static final String PACKAGE_NAME = "com.android.shell";
     public static final int USER_ID = 0;
 
-    private final Method getServiceMethod;
-
-    private WindowManager windowManager;
-    private DisplayManager displayManager;
-    private InputManager inputManager;
-    private PowerManager powerManager;
-    private StatusBarManager statusBarManager;
-    private ClipboardManager clipboardManager;
-    private ActivityManager activityManager;
-
-    public ServiceManager() {
+    private static final Method GET_SERVICE_METHOD;
+    static {
         try {
-            getServiceMethod = Class.forName("android.os.ServiceManager").getDeclaredMethod("getService", String.class);
+            GET_SERVICE_METHOD = Class.forName("android.os.ServiceManager").getDeclaredMethod("getService", String.class);
         } catch (Exception e) {
             throw new AssertionError(e);
         }
     }
 
-    private IInterface getService(String service, String type) {
+    private static WindowManager windowManager;
+    private static DisplayManager displayManager;
+    private static InputManager inputManager;
+    private static PowerManager powerManager;
+    private static StatusBarManager statusBarManager;
+    private static ClipboardManager clipboardManager;
+    private static ActivityManager activityManager;
+
+    private ServiceManager() {
+        /* not instantiable */
+    }
+
+    private static IInterface getService(String service, String type) {
         try {
-            IBinder binder = (IBinder) getServiceMethod.invoke(null, service);
+            IBinder binder = (IBinder) GET_SERVICE_METHOD.invoke(null, service);
             Method asInterfaceMethod = Class.forName(type + "$Stub").getMethod("asInterface", IBinder.class);
             return (IInterface) asInterfaceMethod.invoke(null, binder);
         } catch (Exception e) {
@@ -41,21 +44,28 @@ public final class ServiceManager {
         }
     }
 
-    public WindowManager getWindowManager() {
+    public static WindowManager getWindowManager() {
         if (windowManager == null) {
             windowManager = new WindowManager(getService("window", "android.view.IWindowManager"));
         }
         return windowManager;
     }
 
-    public DisplayManager getDisplayManager() {
+    public static DisplayManager getDisplayManager() {
         if (displayManager == null) {
-            displayManager = new DisplayManager(getService("display", "android.hardware.display.IDisplayManager"));
+            try {
+                Class<?> clazz = Class.forName("android.hardware.display.DisplayManagerGlobal");
+                Method getInstanceMethod = clazz.getDeclaredMethod("getInstance");
+                Object dmg = getInstanceMethod.invoke(null);
+                displayManager = new DisplayManager(dmg);
+            } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+                throw new AssertionError(e);
+            }
         }
         return displayManager;
     }
 
-    public InputManager getInputManager() {
+    public static InputManager getInputManager() {
         if (inputManager == null) {
             try {
                 Method getInstanceMethod = android.hardware.input.InputManager.class.getDeclaredMethod("getInstance");
@@ -68,21 +78,21 @@ public final class ServiceManager {
         return inputManager;
     }
 
-    public PowerManager getPowerManager() {
+    public static PowerManager getPowerManager() {
         if (powerManager == null) {
             powerManager = new PowerManager(getService("power", "android.os.IPowerManager"));
         }
         return powerManager;
     }
 
-    public StatusBarManager getStatusBarManager() {
+    public static StatusBarManager getStatusBarManager() {
         if (statusBarManager == null) {
             statusBarManager = new StatusBarManager(getService("statusbar", "com.android.internal.statusbar.IStatusBarService"));
         }
         return statusBarManager;
     }
 
-    public ClipboardManager getClipboardManager() {
+    public static ClipboardManager getClipboardManager() {
         if (clipboardManager == null) {
             IInterface clipboard = getService("clipboard", "android.content.IClipboard");
             if (clipboard == null) {
@@ -96,7 +106,7 @@ public final class ServiceManager {
         return clipboardManager;
     }
 
-    public ActivityManager getActivityManager() {
+    public static ActivityManager getActivityManager() {
         if (activityManager == null) {
             try {
                 // On old Android versions, the ActivityManager is not exposed via AIDL,

server/src/test/java/com/genymobile/scrcpy/BinaryTest.java

@@ -0,0 +1,42 @@
+package com.genymobile.scrcpy;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class BinaryTest {
+
+    @Test
+    public void testU16FixedPointToFloat() {
+        final float delta = 0.0f; // on these values, there MUST be no rounding error
+        Assert.assertEquals(0.0f, Binary.u16FixedPointToFloat((short) 0), delta);
+        Assert.assertEquals(0.03125f, Binary.u16FixedPointToFloat((short) 0x800), delta);
+        Assert.assertEquals(0.0625f, Binary.u16FixedPointToFloat((short) 0x1000), delta);
+        Assert.assertEquals(0.125f, Binary.u16FixedPointToFloat((short) 0x2000), delta);
+        Assert.assertEquals(0.25f, Binary.u16FixedPointToFloat((short) 0x4000), delta);
+        Assert.assertEquals(0.5f, Binary.u16FixedPointToFloat((short) 0x8000), delta);
+        Assert.assertEquals(0.75f, Binary.u16FixedPointToFloat((short) 0xc000), delta);
+        Assert.assertEquals(1.0f, Binary.u16FixedPointToFloat((short) 0xffff), delta);
+    }
+
+    @Test
+    public void testI16FixedPointToFloat() {
+        final float delta = 0.0f; // on these values, there MUST be no rounding error
+
+        Assert.assertEquals(0.0f, Binary.i16FixedPointToFloat((short) 0), delta);
+        Assert.assertEquals(0.03125f, Binary.i16FixedPointToFloat((short) 0x400), delta);
+        Assert.assertEquals(0.0625f, Binary.i16FixedPointToFloat((short) 0x800), delta);
+        Assert.assertEquals(0.125f, Binary.i16FixedPointToFloat((short) 0x1000), delta);
+        Assert.assertEquals(0.25f, Binary.i16FixedPointToFloat((short) 0x2000), delta);
+        Assert.assertEquals(0.5f, Binary.i16FixedPointToFloat((short) 0x4000), delta);
+        Assert.assertEquals(0.75f, Binary.i16FixedPointToFloat((short) 0x6000), delta);
+        Assert.assertEquals(1.0f, Binary.i16FixedPointToFloat((short) 0x7fff), delta);
+
+        Assert.assertEquals(-0.03125f, Binary.i16FixedPointToFloat((short) -0x400), delta);
+        Assert.assertEquals(-0.0625f, Binary.i16FixedPointToFloat((short) -0x800), delta);
+        Assert.assertEquals(-0.125f, Binary.i16FixedPointToFloat((short) -0x1000), delta);
+        Assert.assertEquals(-0.25f, Binary.i16FixedPointToFloat((short) -0x2000), delta);
+        Assert.assertEquals(-0.5f, Binary.i16FixedPointToFloat((short) -0x4000), delta);
+        Assert.assertEquals(-0.75f, Binary.i16FixedPointToFloat((short) -0x6000), delta);
+        Assert.assertEquals(-1.0f, Binary.i16FixedPointToFloat((short) -0x8000), delta);
+    }
+}

server/src/test/java/com/genymobile/scrcpy/CommandParserTest.java

@@ -0,0 +1,242 @@
+package com.genymobile.scrcpy;
+
+import com.genymobile.scrcpy.wrappers.DisplayManager;
+
+import android.view.Display;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CommandParserTest {
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplay() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "mDisplayId=0\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=2 primaryRefreshRateRange=[90 90] appRequestRefreshRateRange=[90 90]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, "
+                + "real 1440 x 3120, largest app 1440 x 3120, smallest app 1440 x 3120, appVsyncOff 2000000, presDeadline 11111111, mode 2, "
+                + "defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, width=1080, "
+                + "height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], "
+                + "mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, minimalPostProcessingSupported false, rotation 0, state OFF, "
+                + "type INTERNAL, uniqueId \"local:0\", app 1440 x 3120, density 600 (515.154 x 514.597) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo DeviceProductInfo{name=, manufacturerPnpId=QCM, "
+                + "productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, relativeAddress=null}, removeMode 0}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, "
+                + "FLAG_TRUSTED, real 1440 x 3120, largest app 3120 x 2983, smallest app 1440 x 1303, appVsyncOff 2000000, presDeadline 11111111, "
+                + "mode 2, defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, "
+                + "width=1080, height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities "
+                + "HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, "
+                + "minimalPostProcessingSupported false, rotation 0, state ON, type INTERNAL, uniqueId \"local:0\", app 1440 x 3120, density 600 "
+                + "(515.154 x 514.597) dpi, layerStack 0, colorMode 0, supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo "
+                + "DeviceProductInfo{name=, manufacturerPnpId=QCM, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, "
+                + "relativeAddress=null}, removeMode 0}\n"
+                + "    mRequestedMinimalPostProcessing=false\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        // FLAG_TRUSTED does not exist in Display (@TestApi), so it won't be reported
+        Assert.assertEquals(Display.FLAG_SECURE | Display.FLAG_SUPPORTS_PROTECTED_BUFFERS, displayInfo.getFlags());
+        Assert.assertEquals(1440, displayInfo.getSize().getWidth());
+        Assert.assertEquals(3120, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayWithRotation() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "mDisplayId=0\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=2 primaryRefreshRateRange=[90 90] appRequestRefreshRateRange=[90 90]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, "
+                + "real 1440 x 3120, largest app 1440 x 3120, smallest app 1440 x 3120, appVsyncOff 2000000, presDeadline 11111111, mode 2, "
+                + "defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, width=1080, "
+                + "height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], "
+                + "mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, minimalPostProcessingSupported false, rotation 0, state ON, "
+                + "type INTERNAL, uniqueId \"local:0\", app 1440 x 3120, density 600 (515.154 x 514.597) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo DeviceProductInfo{name=, manufacturerPnpId=QCM, "
+                + "productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, relativeAddress=null}, removeMode 0}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, "
+                + "FLAG_TRUSTED, real 3120 x 1440, largest app 3120 x 2983, smallest app 1440 x 1303, appVsyncOff 2000000, presDeadline 11111111, "
+                + "mode 2, defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, "
+                + "width=1080, height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities "
+                + "HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, "
+                + "minimalPostProcessingSupported false, rotation 3, state ON, type INTERNAL, uniqueId \"local:0\", app 3120 x 1440, density 600 "
+                + "(515.154 x 514.597) dpi, layerStack 0, colorMode 0, supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo "
+                + "DeviceProductInfo{name=, manufacturerPnpId=QCM, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, "
+                + "relativeAddress=null}, removeMode 0}\n"
+                + "    mRequestedMinimalPostProcessing=false";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(3, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        // FLAG_TRUSTED does not exist in Display (@TestApi), so it won't be reported
+        Assert.assertEquals(Display.FLAG_SECURE | Display.FLAG_SUPPORTS_PROTECTED_BUFFERS, displayInfo.getFlags());
+        Assert.assertEquals(3120, displayInfo.getSize().getWidth());
+        Assert.assertEquals(1440, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayAPI31() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "    mDisplayId=0\n"
+                + "    mPhase=1\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=1 allowGroupSwitching=false primaryRefreshRateRange=[0 60] appRequestRefreshRateRange=[0 "
+                + "Infinity]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, FLAG_SECURE, "
+                + "FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2280, largest app 1080 x 2280, smallest app 1080 x 2280, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2280, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, FLAG_SECURE, "
+                + "FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2280, largest app 2148 x 2065, smallest app 1080 x 997, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2148, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mRequestedMinimalPostProcessing=false\n"
+                + "    mFrameRateOverrides=[]\n"
+                + "    mPendingFrameRateOverrideUids={}\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        // FLAG_TRUSTED does not exist in Display (@TestApi), so it won't be reported
+        Assert.assertEquals(Display.FLAG_SECURE | Display.FLAG_SUPPORTS_PROTECTED_BUFFERS, displayInfo.getFlags());
+        Assert.assertEquals(1080, displayInfo.getSize().getWidth());
+        Assert.assertEquals(2280, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayAPI31NoFlags() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "    mDisplayId=0\n"
+                + "    mPhase=1\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=1 allowGroupSwitching=false primaryRefreshRateRange=[0 60] appRequestRefreshRateRange=[0 "
+                + "Infinity]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, "
+                + "real 1080 x 2280, largest app 1080 x 2280, smallest app 1080 x 2280, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2280, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, "
+                + "real 1080 x 2280, largest app 2148 x 2065, smallest app 1080 x 997, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2148, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mRequestedMinimalPostProcessing=false\n"
+                + "    mFrameRateOverrides=[]\n"
+                + "    mPendingFrameRateOverrideUids={}\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        Assert.assertEquals(0, displayInfo.getFlags());
+        Assert.assertEquals(1080, displayInfo.getSize().getWidth());
+        Assert.assertEquals(2280, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayAPI29WithNoFlags() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=2\n"
+                + "  Display 0:\n"
+                + "    mDisplayId=0\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mAllowedDisplayModes=[1]\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen, displayId 0\", uniqueId \"local:0\", app 3664 x 1920, "
+                + "real 3664 x 1920, largest app 3664 x 1920, smallest app 3664 x 1920, mode 61, defaultMode 61, modes ["
+                + "{id=1, width=3664, height=1920, fps=60.000004}, {id=2, width=3664, height=1920, fps=61.000004}, "
+                + "{id=61, width=3664, height=1920, fps=120.00001}], colorMode 0, supportedColorModes [0], "
+                + "hdrCapabilities android.view.Display$HdrCapabilities@4a41fe79, rotation 0, density 290 (320.842 x 319.813) dpi, "
+                + "layerStack 0, appVsyncOff 1000000, presDeadline 8333333, type BUILT_IN, address {port=129, model=0}, "
+                + "state ON, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, removeMode 0}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen, displayId 0\", uniqueId \"local:0\", app 3664 x 1920, "
+                + "real 3664 x 1920, largest app 3664 x 3620, smallest app 1920 x 1876, mode 61, defaultMode 61, modes ["
+                + "{id=1, width=3664, height=1920, fps=60.000004}, {id=2, width=3664, height=1920, fps=61.000004}, "
+                + "{id=61, width=3664, height=1920, fps=120.00001}], colorMode 0, supportedColorModes [0], "
+                + "hdrCapabilities android.view.Display$HdrCapabilities@4a41fe79, rotation 0, density 290 (320.842 x 319.813) dpi, "
+                + "layerStack 0, appVsyncOff 1000000, presDeadline 8333333, type BUILT_IN, address {port=129, model=0}, "
+                + "state ON, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, removeMode 0}\n"
+                + "  Display 31:\n"
+                + "    mDisplayId=31\n"
+                + "    mLayerStack=31\n"
+                + "    mHasContent=true\n"
+                + "    mAllowedDisplayModes=[92]\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=PanelLayer-#main\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"PanelLayer-#main, displayId 31\", uniqueId "
+                + "\"virtual:com.test.system,10040,PanelLayer-#main,0\", app 800 x 110, real 800 x 110, largest app 800 x 110, smallest app 800 x "
+                + "110, mode 92, defaultMode 92, modes [{id=92, width=800, height=110, fps=60.0}], colorMode 0, supportedColorModes [0], "
+                + "hdrCapabilities null, rotation 0, density 200 (200.0 x 200.0) dpi, layerStack 31, appVsyncOff 0, presDeadline 16666666, "
+                + "type VIRTUAL, state ON, owner com.test.system (uid 10040), FLAG_PRIVATE, removeMode 1}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"PanelLayer-#main, displayId 31\", uniqueId "
+                + "\"virtual:com.test.system,10040,PanelLayer-#main,0\", app 800 x 110, real 800 x 110, largest app 800 x 800, smallest app 110 x "
+                + "110, mode 92, defaultMode 92, modes [{id=92, width=800, height=110, fps=60.0}], colorMode 0, supportedColorModes [0], "
+                + "hdrCapabilities null, rotation 0, density 200 (200.0 x 200.0) dpi, layerStack 31, appVsyncOff 0, presDeadline 16666666, "
+                + "type VIRTUAL, state OFF, owner com.test.system (uid 10040), FLAG_PRIVATE, removeMode 1}\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 31);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(31, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(31, displayInfo.getLayerStack());
+        Assert.assertEquals(0, displayInfo.getFlags());
+        Assert.assertEquals(800, displayInfo.getSize().getWidth());
+        Assert.assertEquals(110, displayInfo.getSize().getHeight());
+    }
+}

server/src/test/java/com/genymobile/scrcpy/ControlMessageReaderTest.java

@@ -126,8 +126,8 @@ public class ControlMessageReaderTest {
         dos.writeInt(1026);
         dos.writeShort(1080);
         dos.writeShort(1920);
-        dos.writeInt(1);
-        dos.writeInt(-1);
+        dos.writeShort(0); // 0.0f encoded as i16
+        dos.writeShort(0x8000); // -1.0f encoded as i16
         dos.writeInt(1);
 
         byte[] packet = bos.toByteArray();
@@ -143,8 +143,8 @@ public class ControlMessageReaderTest {
         Assert.assertEquals(1026, event.getPosition().getPoint().getY());
         Assert.assertEquals(1080, event.getPosition().getScreenSize().getWidth());
         Assert.assertEquals(1920, event.getPosition().getScreenSize().getHeight());
-        Assert.assertEquals(1, event.getHScroll());
-        Assert.assertEquals(-1, event.getVScroll());
+        Assert.assertEquals(0f, event.getHScroll(), 0f);
+        Assert.assertEquals(-1f, event.getVScroll(), 0f);
         Assert.assertEquals(1, event.getButtons());
     }