diff --git a/BUILD.md b/BUILD.md
index 745ac50c..6d4d6431 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -219,10 +219,10 @@ You can then [run](README.md#run) _scrcpy_.
 
 ## Prebuilt server
 
- - [`scrcpy-server-v1.3.jar`][direct-scrcpy-server].  
-   _(SHA-256: 0f9a5a217f33f0ed7a1498ceb3c0cccf31c53533893aa952e674c1571d2740c1)_
+ - [`scrcpy-server-v1.4.jar`][direct-scrcpy-server]  
+   _(SHA-256: 1ff7a72fcfe81dadccfab9d6f86c971cd7c7f38f17196748fe05480e301b443d)_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.3/scrcpy-server-v1.3.jar
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.4/scrcpy-server-v1.4.jar
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:
diff --git a/Makefile.CrossWindows b/Makefile.CrossWindows
index 2dd6c192..9beb44e8 100644
--- a/Makefile.CrossWindows
+++ b/Makefile.CrossWindows
@@ -100,10 +100,10 @@ dist-win32: build-server build-win32 build-win32-noconsole
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server.jar "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.0-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.0-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.0-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.0-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
@@ -114,10 +114,10 @@ dist-win64: build-server build-win64 build-win64-noconsole
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server.jar "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.0-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.0-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.0-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.0-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.0.2-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
diff --git a/README.md b/README.md
index c16b1c78..28e76e24 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# scrcpy (v1.3)
+# scrcpy (v1.4)
 
 This application provides display and control of Android devices connected on
 USB (or [over TCP/IP][article-tcpip]). It does not require any _root_ access.
@@ -42,13 +42,13 @@ For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link].
 For Windows, for simplicity, prebuilt archives with all the dependencies
 (including `adb`) are available:
 
- - [`scrcpy-win32-v1.3.zip`][direct-win32].  
-   _(SHA-256: 51a2990e631ed469a7a86ff38107d517a91d313fb3f8327eb7bc71dde40870b5)_
- - [`scrcpy-win64-v1.3.zip`][direct-win64].  
-   _(SHA-256: 0768a80d3d600d0bbcd220ca150ae88a3a58d1fe85c308a8c61f44480b711e43)_
+ - [`scrcpy-win32-v1.4.zip`][direct-win32]  
+   _(SHA-256: 1f72fa520980727e8943b7214b64c66b00b9b5267f7cffefb64fa37c3ca803cf)_
+ - [`scrcpy-win64-v1.4.zip`][direct-win64]  
+   _(SHA-256: 382f02bd8ed3db2cc7ab15aabdb83674744993b936d602b01e6959a150584a79)_
 
-[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.3/scrcpy-win32-v1.3.zip
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.3/scrcpy-win64-v1.3.zip
+[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.4/scrcpy-win32-v1.4.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.4/scrcpy-win64-v1.4.zip
 
 You can also [build the app manually][BUILD].
 
@@ -117,6 +117,12 @@ To show physical touches while scrcpy is running:
 scrcpy -t
 ```
 
+The app may be started directly in fullscreen:
+
+```
+scrcpy -f
+```
+
 ## Shortcuts
 
  | Action                                 |   Shortcut                    |
@@ -135,6 +141,7 @@ scrcpy -t
  | paste computer clipboard to device     | `Ctrl`+`v`                    |
  | enable/disable FPS counter (on stdout) | `Ctrl`+`i`                    |
  | install APK from computer              | drag & drop APK file          |
+ | push file to `/sdcard/`                | drag & drop non-APK file      |
 
 _¹Double-click on black borders to remove them._  
 _²Right-click turns the screen on if it was off, presses BACK otherwise._
diff --git a/app/meson.build b/app/meson.build
index b74b75fa..3e309cdf 100644
--- a/app/meson.build
+++ b/app/meson.build
@@ -1,22 +1,22 @@
 src = [
     'src/main.c',
     'src/command.c',
-    'src/controlevent.c',
+    'src/control_event.c',
     'src/controller.c',
     'src/convert.c',
     'src/decoder.c',
     'src/device.c',
-    'src/fpscounter.c',
+    'src/file_handler.c',
+    'src/fps_counter.c',
     'src/frames.c',
-    'src/inputmanager.c',
-    'src/installer.c',
-    'src/lockutil.c',
+    'src/input_manager.c',
+    'src/lock_util.c',
     'src/net.c',
     'src/scrcpy.c',
     'src/screen.c',
     'src/server.c',
-    'src/strutil.c',
-    'src/tinyxpm.c',
+    'src/str_util.c',
+    'src/tiny_xpm.c',
 ]
 
 if not get_option('crossbuild_windows')
@@ -85,7 +85,7 @@ conf = configuration_data()
 conf.set('BUILD_DEBUG', get_option('buildtype') == 'debug')
 
 # the version, updated on release
-conf.set_quoted('SCRCPY_VERSION', '1.3')
+conf.set_quoted('SCRCPY_VERSION', '1.4')
 
 # the prefix used during configuration (meson --prefix=PREFIX)
 conf.set_quoted('PREFIX', get_option('prefix'))
@@ -147,9 +147,9 @@ executable('scrcpy', src, dependencies: dependencies, include_directories: src_d
 ### TESTS
 
 tests = [
-    ['test_control_event_queue', ['tests/test_control_event_queue.c', 'src/controlevent.c']],
-    ['test_control_event_serialize', ['tests/test_control_event_serialize.c', 'src/controlevent.c']],
-    ['test_strutil', ['tests/test_strutil.c', 'src/strutil.c']],
+    ['test_control_event_queue', ['tests/test_control_event_queue.c', 'src/control_event.c']],
+    ['test_control_event_serialize', ['tests/test_control_event_serialize.c', 'src/control_event.c']],
+    ['test_strutil', ['tests/test_strutil.c', 'src/str_util.c']],
 ]
 
 foreach t : tests
diff --git a/app/src/command.c b/app/src/command.c
index b7ea67d2..b5bb9572 100644
--- a/app/src/command.c
+++ b/app/src/command.c
@@ -6,10 +6,11 @@
 
 #include "common.h"
 #include "log.h"
+#include "str_util.h"
 
 static const char *adb_command;
 
-static inline const char *get_adb_command() {
+static inline const char *get_adb_command(void) {
     if (!adb_command) {
         adb_command = getenv("ADB");
         if (!adb_command)
@@ -18,9 +19,25 @@ static inline const char *get_adb_command() {
     return adb_command;
 }
 
+static void show_adb_err_msg(enum process_result err) {
+    switch (err) {
+        case PROCESS_ERROR_GENERIC:
+            LOGE("Failed to execute adb");
+            break;
+        case PROCESS_ERROR_MISSING_BINARY:
+            LOGE("'adb' command not found (make it accessible from your PATH "
+                  "or define its full path in the ADB environment variable)");
+            break;
+        case PROCESS_SUCCESS:
+            /* do nothing */
+            break;
+    }
+}
+
 process_t adb_execute(const char *serial, const char *const adb_cmd[], int len) {
     const char *cmd[len + 4];
     int i;
+    process_t process;
     cmd[0] = get_adb_command();
     if (serial) {
         cmd[1] = "-s";
@@ -32,7 +49,12 @@ process_t adb_execute(const char *serial, const char *const adb_cmd[], int len)
 
     memcpy(&cmd[i], adb_cmd, len * sizeof(const char *));
     cmd[len + i] = NULL;
-    return cmd_execute(cmd[0], cmd);
+    enum process_result r = cmd_execute(cmd[0], cmd, &process);
+    if (r != PROCESS_SUCCESS) {
+        show_adb_err_msg(r);
+        return PROCESS_NONE;
+    }
+    return process;
 }
 
 process_t adb_forward(const char *serial, uint16_t local_port, const char *device_socket_name) {
@@ -68,23 +90,49 @@ process_t adb_reverse_remove(const char *serial, const char *device_socket_name)
 }
 
 process_t adb_push(const char *serial, const char *local, const char *remote) {
+#ifdef __WINDOWS__
+    // Windows will parse the string, so the paths must be quoted
+    // (see sys/win/command.c)
+    local = strquote(local);
+    if (!local) {
+        return PROCESS_NONE;
+    }
+    remote = strquote(remote);
+    if (!remote) {
+        free((void *) local);
+        return PROCESS_NONE;
+    }
+#endif
+
     const char *const adb_cmd[] = {"push", local, remote};
-    return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+    process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+
+#ifdef __WINDOWS__
+    free((void *) remote);
+    free((void *) local);
+#endif
+
+    return proc;
 }
 
 process_t adb_install(const char *serial, const char *local) {
 #ifdef __WINDOWS__
-    // Windows will parse the string, so the local name must be quoted (see sys/win/command.c)
-    size_t len = strlen(local);
-    char quoted[len + 3];
-    memcpy(&quoted[1], local, len);
-    quoted[0] = '"';
-    quoted[len + 1] = '"';
-    quoted[len + 2] = '\0';
-    local = quoted;
+    // Windows will parse the string, so the local name must be quoted
+    // (see sys/win/command.c)
+    local = strquote(local);
+    if (!local) {
+        return PROCESS_NONE;
+    }
 #endif
+
     const char *const adb_cmd[] = {"install", "-r", local};
-    return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+    process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+
+#ifdef __WINDOWS__
+    free((void *) local);
+#endif
+
+    return proc;
 }
 
 process_t adb_remove_path(const char *serial, const char *path) {
diff --git a/app/src/command.h b/app/src/command.h
index 4113f251..3e0fcca6 100644
--- a/app/src/command.h
+++ b/app/src/command.h
@@ -32,7 +32,13 @@
 #endif
 # define NO_EXIT_CODE -1
 
-process_t cmd_execute(const char *path, const char *const argv[]);
+enum process_result {
+    PROCESS_SUCCESS,
+    PROCESS_ERROR_GENERIC,
+    PROCESS_ERROR_MISSING_BINARY,
+};
+
+enum process_result cmd_execute(const char *path, const char *const argv[], process_t *process);
 SDL_bool cmd_terminate(process_t pid);
 SDL_bool cmd_simple_wait(process_t pid, exit_code_t *exit_code);
 
diff --git a/app/src/controlevent.c b/app/src/control_event.c
similarity index 98%
rename from app/src/controlevent.c
rename to app/src/control_event.c
index edb7a1a2..78b6a4c6 100644
--- a/app/src/controlevent.c
+++ b/app/src/control_event.c
@@ -1,9 +1,9 @@
-#include "controlevent.h"
+#include "control_event.h"
 
 #include <SDL2/SDL_stdinc.h>
 #include <string.h>
 
-#include "lockutil.h"
+#include "lock_util.h"
 #include "log.h"
 
 static inline void write16(Uint8 *buf, Uint16 value) {
diff --git a/app/src/controlevent.h b/app/src/control_event.h
similarity index 100%
rename from app/src/controlevent.h
rename to app/src/control_event.h
diff --git a/app/src/controller.c b/app/src/controller.c
index 468885f6..f659d4b9 100644
--- a/app/src/controller.c
+++ b/app/src/controller.c
@@ -1,6 +1,8 @@
 #include "controller.h"
 
-#include "lockutil.h"
+#include <SDL2/SDL_assert.h>
+#include "config.h"
+#include "lock_util.h"
 #include "log.h"
 
 SDL_bool controller_init(struct controller *controller, socket_t video_socket) {
@@ -65,12 +67,8 @@ static int run_controller(void *data) {
             break;
         }
         struct control_event event;
-#ifdef BUILD_DEBUG
-        bool non_empty = control_event_queue_take(&controller->queue, &event);
+        SDL_bool non_empty = control_event_queue_take(&controller->queue, &event);
         SDL_assert(non_empty);
-#else
-        control_event_queue_take(&controller->queue, &event);
-#endif
         mutex_unlock(controller->mutex);
 
         SDL_bool ok = process_event(controller, &event);
diff --git a/app/src/controller.h b/app/src/controller.h
index 7c22fe07..08d639a6 100644
--- a/app/src/controller.h
+++ b/app/src/controller.h
@@ -1,7 +1,7 @@
 #ifndef CONTROL_H
 #define CONTROL_H
 
-#include "controlevent.h"
+#include "control_event.h"
 
 #include <SDL2/SDL_mutex.h>
 #include <SDL2/SDL_stdinc.h>
diff --git a/app/src/convert.c b/app/src/convert.c
index 9d947cb3..7d40b938 100644
--- a/app/src/convert.c
+++ b/app/src/convert.c
@@ -70,7 +70,7 @@ static enum android_metastate convert_meta_state(SDL_Keymod mod) {
     return autocomplete_metastate(metastate);
 }
 
-static SDL_bool convert_keycode(SDL_Keycode from, enum android_keycode *to) {
+static SDL_bool convert_keycode(SDL_Keycode from, enum android_keycode *to, Uint16 mod) {
     switch (from) {
         MAP(SDLK_RETURN,       AKEYCODE_ENTER);
         MAP(SDLK_KP_ENTER,     AKEYCODE_NUMPAD_ENTER);
@@ -86,6 +86,39 @@ static SDL_bool convert_keycode(SDL_Keycode from, enum android_keycode *to) {
         MAP(SDLK_LEFT,         AKEYCODE_DPAD_LEFT);
         MAP(SDLK_DOWN,         AKEYCODE_DPAD_DOWN);
         MAP(SDLK_UP,           AKEYCODE_DPAD_UP);
+    }
+    if (mod & (KMOD_LALT | KMOD_RALT | KMOD_LGUI | KMOD_RGUI)) {
+        return SDL_FALSE;
+    }
+    // if ALT and META are not pressed, also handle letters and space
+    switch (from) {
+        MAP(SDLK_a,            AKEYCODE_A);
+        MAP(SDLK_b,            AKEYCODE_B);
+        MAP(SDLK_c,            AKEYCODE_C);
+        MAP(SDLK_d,            AKEYCODE_D);
+        MAP(SDLK_e,            AKEYCODE_E);
+        MAP(SDLK_f,            AKEYCODE_F);
+        MAP(SDLK_g,            AKEYCODE_G);
+        MAP(SDLK_h,            AKEYCODE_H);
+        MAP(SDLK_i,            AKEYCODE_I);
+        MAP(SDLK_j,            AKEYCODE_J);
+        MAP(SDLK_k,            AKEYCODE_K);
+        MAP(SDLK_l,            AKEYCODE_L);
+        MAP(SDLK_m,            AKEYCODE_M);
+        MAP(SDLK_n,            AKEYCODE_N);
+        MAP(SDLK_o,            AKEYCODE_O);
+        MAP(SDLK_p,            AKEYCODE_P);
+        MAP(SDLK_q,            AKEYCODE_Q);
+        MAP(SDLK_r,            AKEYCODE_R);
+        MAP(SDLK_s,            AKEYCODE_S);
+        MAP(SDLK_t,            AKEYCODE_T);
+        MAP(SDLK_u,            AKEYCODE_U);
+        MAP(SDLK_v,            AKEYCODE_V);
+        MAP(SDLK_w,            AKEYCODE_W);
+        MAP(SDLK_x,            AKEYCODE_X);
+        MAP(SDLK_y,            AKEYCODE_Y);
+        MAP(SDLK_z,            AKEYCODE_Z);
+        MAP(SDLK_SPACE,        AKEYCODE_SPACE);
         FAIL;
     }
 }
@@ -126,11 +159,12 @@ SDL_bool input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
         return SDL_FALSE;
     }
 
-    if (!convert_keycode(from->keysym.sym, &to->keycode_event.keycode)) {
+    Uint16 mod = from->keysym.mod;
+    if (!convert_keycode(from->keysym.sym, &to->keycode_event.keycode, mod)) {
         return SDL_FALSE;
     }
 
-    to->keycode_event.metastate = convert_meta_state(from->keysym.mod);
+    to->keycode_event.metastate = convert_meta_state(mod);
 
     return SDL_TRUE;
 }
diff --git a/app/src/convert.h b/app/src/convert.h
index 5a535a37..30f0dd3d 100644
--- a/app/src/convert.h
+++ b/app/src/convert.h
@@ -3,7 +3,7 @@
 
 #include <SDL2/SDL_stdinc.h>
 #include <SDL2/SDL_events.h>
-#include "controlevent.h"
+#include "control_event.h"
 
 struct complete_mouse_motion_event {
     SDL_MouseMotionEvent *mouse_motion_event;
diff --git a/app/src/decoder.c b/app/src/decoder.c
index 94dc9401..9e90e4b7 100644
--- a/app/src/decoder.c
+++ b/app/src/decoder.c
@@ -9,7 +9,7 @@
 #include "config.h"
 #include "events.h"
 #include "frames.h"
-#include "lockutil.h"
+#include "lock_util.h"
 #include "log.h"
 
 #define BUFSIZE 0x10000
diff --git a/app/src/device.h b/app/src/device.h
index d01d6ed2..125dda3a 100644
--- a/app/src/device.h
+++ b/app/src/device.h
@@ -7,6 +7,7 @@
 #include "net.h"
 
 #define DEVICE_NAME_FIELD_LENGTH 64
+#define DEVICE_SDCARD_PATH "/sdcard/"
 
 // name must be at least DEVICE_NAME_FIELD_LENGTH bytes
 SDL_bool device_read_info(socket_t device_socket, char *name, struct size *frame_size);
diff --git a/app/src/file_handler.c b/app/src/file_handler.c
new file mode 100644
index 00000000..d1e0fd7b
--- /dev/null
+++ b/app/src/file_handler.c
@@ -0,0 +1,231 @@
+#include "file_handler.h"
+
+#include <string.h>
+#include <SDL2/SDL_assert.h>
+#include "config.h"
+#include "command.h"
+#include "device.h"
+#include "lock_util.h"
+#include "log.h"
+
+struct request {
+    file_handler_action_t action;
+    const char *file;
+};
+
+static struct request *request_new(file_handler_action_t action, const char *file) {
+    struct request *req = SDL_malloc(sizeof(*req));
+    if (!req) {
+        return NULL;
+    }
+    req->action = action;
+    req->file = file;
+    return req;
+}
+
+static void request_free(struct request *req) {
+    if (!req) {
+        return;
+    }
+    SDL_free((void *) req->file);
+    SDL_free((void *) req);
+}
+
+static SDL_bool request_queue_is_empty(const struct request_queue *queue) {
+    return queue->head == queue->tail;
+}
+
+static SDL_bool request_queue_is_full(const struct request_queue *queue) {
+    return (queue->head + 1) % REQUEST_QUEUE_SIZE == queue->tail;
+}
+
+static SDL_bool request_queue_init(struct request_queue *queue) {
+    queue->head = 0;
+    queue->tail = 0;
+    return SDL_TRUE;
+}
+
+static void request_queue_destroy(struct request_queue *queue) {
+    int i = queue->tail;
+    while (i != queue->head) {
+        request_free(queue->reqs[i]);
+        i = (i + 1) % REQUEST_QUEUE_SIZE;
+    }
+}
+
+static SDL_bool request_queue_push(struct request_queue *queue, struct request *req) {
+    if (request_queue_is_full(queue)) {
+        return SDL_FALSE;
+    }
+    queue->reqs[queue->head] = req;
+    queue->head = (queue->head + 1) % REQUEST_QUEUE_SIZE;
+    return SDL_TRUE;
+}
+
+static SDL_bool request_queue_take(struct request_queue *queue, struct request **req) {
+    if (request_queue_is_empty(queue)) {
+        return SDL_FALSE;
+    }
+    // transfer ownership
+    *req = queue->reqs[queue->tail];
+    queue->tail = (queue->tail + 1) % REQUEST_QUEUE_SIZE;
+    return SDL_TRUE;
+}
+
+SDL_bool file_handler_init(struct file_handler *file_handler, const char *serial) {
+
+    if (!request_queue_init(&file_handler->queue)) {
+        return SDL_FALSE;
+    }
+
+    if (!(file_handler->mutex = SDL_CreateMutex())) {
+        return SDL_FALSE;
+    }
+
+    if (!(file_handler->event_cond = SDL_CreateCond())) {
+        SDL_DestroyMutex(file_handler->mutex);
+        return SDL_FALSE;
+    }
+
+    if (serial) {
+        file_handler->serial = SDL_strdup(serial);
+        if (!file_handler->serial) {
+            LOGW("Cannot strdup serial");
+            SDL_DestroyMutex(file_handler->mutex);
+            return SDL_FALSE;
+        }
+    } else {
+        file_handler->serial = NULL;
+    }
+
+    // lazy initialization
+    file_handler->initialized = SDL_FALSE;
+
+    file_handler->stopped = SDL_FALSE;
+    file_handler->current_process = PROCESS_NONE;
+
+    return SDL_TRUE;
+}
+
+void file_handler_destroy(struct file_handler *file_handler) {
+    SDL_DestroyCond(file_handler->event_cond);
+    SDL_DestroyMutex(file_handler->mutex);
+    request_queue_destroy(&file_handler->queue);
+    SDL_free((void *) file_handler->serial);
+}
+
+static process_t install_apk(const char *serial, const char *file) {
+    return adb_install(serial, file);
+}
+
+static process_t push_file(const char *serial, const char *file) {
+    return adb_push(serial, file, DEVICE_SDCARD_PATH);
+}
+
+SDL_bool file_handler_request(struct file_handler *file_handler,
+                              file_handler_action_t action,
+                              const char *file) {
+    SDL_bool res;
+
+    // start file_handler if it's used for the first time
+    if (!file_handler->initialized) {
+        if (!file_handler_start(file_handler)) {
+            return SDL_FALSE;
+        }
+        file_handler->initialized = SDL_TRUE;
+    }
+
+    LOGI("Request to %s %s", action == ACTION_INSTALL_APK ? "install" : "push", file);
+    struct request *req = request_new(action, file);
+    if (!req) {
+        LOGE("Could not create request");
+        return SDL_FALSE;
+    }
+
+    mutex_lock(file_handler->mutex);
+    SDL_bool was_empty = request_queue_is_empty(&file_handler->queue);
+    res = request_queue_push(&file_handler->queue, req);
+    if (was_empty) {
+        cond_signal(file_handler->event_cond);
+    }
+    mutex_unlock(file_handler->mutex);
+    return res;
+}
+
+static int run_file_handler(void *data) {
+    struct file_handler *file_handler = data;
+
+    for (;;) {
+        mutex_lock(file_handler->mutex);
+        file_handler->current_process = PROCESS_NONE;
+        while (!file_handler->stopped && request_queue_is_empty(&file_handler->queue)) {
+            cond_wait(file_handler->event_cond, file_handler->mutex);
+        }
+        if (file_handler->stopped) {
+            // stop immediately, do not process further events
+            mutex_unlock(file_handler->mutex);
+            break;
+        }
+        struct request *req;
+        SDL_bool non_empty = request_queue_take(&file_handler->queue, &req);
+        SDL_assert(non_empty);
+
+        process_t process;
+        if (req->action == ACTION_INSTALL_APK) {
+            LOGI("Installing %s...", req->file);
+            process = install_apk(file_handler->serial, req->file);
+        } else {
+            LOGI("Pushing %s...", req->file);
+            process = push_file(file_handler->serial, req->file);
+        }
+        file_handler->current_process = process;
+        mutex_unlock(file_handler->mutex);
+
+        if (req->action == ACTION_INSTALL_APK) {
+            if (process_check_success(process, "adb install")) {
+                LOGI("%s successfully installed", req->file);
+            } else {
+                LOGE("Failed to install %s", req->file);
+            }
+        } else {
+            if (process_check_success(process, "adb push")) {
+                LOGI("%s successfully pushed to /sdcard/", req->file);
+            } else {
+                LOGE("Failed to push %s to /sdcard/", req->file);
+            }
+        }
+
+        request_free(req);
+    }
+    return 0;
+}
+
+SDL_bool file_handler_start(struct file_handler *file_handler) {
+    LOGD("Starting file_handler thread");
+
+    file_handler->thread = SDL_CreateThread(run_file_handler, "file_handler", file_handler);
+    if (!file_handler->thread) {
+        LOGC("Could not start file_handler thread");
+        return SDL_FALSE;
+    }
+
+    return SDL_TRUE;
+}
+
+void file_handler_stop(struct file_handler *file_handler) {
+    mutex_lock(file_handler->mutex);
+    file_handler->stopped = SDL_TRUE;
+    cond_signal(file_handler->event_cond);
+    if (file_handler->current_process != PROCESS_NONE) {
+        if (!cmd_terminate(file_handler->current_process)) {
+            LOGW("Cannot terminate install process");
+        }
+        cmd_simple_wait(file_handler->current_process, NULL);
+        file_handler->current_process = PROCESS_NONE;
+    }
+    mutex_unlock(file_handler->mutex);
+}
+
+void file_handler_join(struct file_handler *file_handler) {
+    SDL_WaitThread(file_handler->thread, NULL);
+}
diff --git a/app/src/file_handler.h b/app/src/file_handler.h
new file mode 100644
index 00000000..9ce39367
--- /dev/null
+++ b/app/src/file_handler.h
@@ -0,0 +1,44 @@
+#ifndef FILE_HANDLER_H
+#define FILE_HANDLER_H
+
+#include <SDL2/SDL_mutex.h>
+#include <SDL2/SDL_stdinc.h>
+#include <SDL2/SDL_thread.h>
+#include "command.h"
+
+#define REQUEST_QUEUE_SIZE 16
+
+typedef enum {
+    ACTION_INSTALL_APK,
+    ACTION_PUSH_FILE,
+} file_handler_action_t;
+
+struct request_queue {
+    struct request *reqs[REQUEST_QUEUE_SIZE];
+    int tail;
+    int head;
+};
+
+struct file_handler {
+    const char *serial;
+    SDL_Thread *thread;
+    SDL_mutex *mutex;
+    SDL_cond *event_cond;
+    SDL_bool stopped;
+    SDL_bool initialized;
+    process_t current_process;
+    struct request_queue queue;
+};
+
+SDL_bool file_handler_init(struct file_handler *file_handler, const char *serial);
+void file_handler_destroy(struct file_handler *file_handler);
+
+SDL_bool file_handler_start(struct file_handler *file_handler);
+void file_handler_stop(struct file_handler *file_handler);
+void file_handler_join(struct file_handler *file_handler);
+
+SDL_bool file_handler_request(struct file_handler *file_handler,
+                              file_handler_action_t action,
+                              const char *file);
+
+#endif
diff --git a/app/src/fpscounter.c b/app/src/fps_counter.c
similarity index 98%
rename from app/src/fpscounter.c
rename to app/src/fps_counter.c
index 4cb512f3..27aa4ee0 100644
--- a/app/src/fpscounter.c
+++ b/app/src/fps_counter.c
@@ -1,4 +1,4 @@
-#include "fpscounter.h"
+#include "fps_counter.h"
 
 #include <SDL2/SDL_timer.h>
 
diff --git a/app/src/fpscounter.h b/app/src/fps_counter.h
similarity index 100%
rename from app/src/fpscounter.h
rename to app/src/fps_counter.h
diff --git a/app/src/frames.c b/app/src/frames.c
index 27fcc1fb..514d4788 100644
--- a/app/src/frames.c
+++ b/app/src/frames.c
@@ -6,7 +6,7 @@
 #include <libavformat/avformat.h>
 
 #include "config.h"
-#include "lockutil.h"
+#include "lock_util.h"
 #include "log.h"
 
 SDL_bool frames_init(struct frames *frames) {
diff --git a/app/src/frames.h b/app/src/frames.h
index 7a52d2c8..437838fc 100644
--- a/app/src/frames.h
+++ b/app/src/frames.h
@@ -5,7 +5,7 @@
 #include <SDL2/SDL_stdinc.h>
 
 #include "config.h"
-#include "fpscounter.h"
+#include "fps_counter.h"
 
 // forward declarations
 typedef struct AVFrame AVFrame;
diff --git a/app/src/inputmanager.c b/app/src/input_manager.c
similarity index 97%
rename from app/src/inputmanager.c
rename to app/src/input_manager.c
index 9dd95264..af84c8f3 100644
--- a/app/src/inputmanager.c
+++ b/app/src/input_manager.c
@@ -1,7 +1,8 @@
-#include "inputmanager.h"
+#include "input_manager.h"
 
+#include <SDL2/SDL_assert.h>
 #include "convert.h"
-#include "lockutil.h"
+#include "lock_util.h"
 #include "log.h"
 
 // Convert window coordinates (as provided by SDL_GetMouseState() to renderer coordinates (as provided in SDL mouse events)
@@ -129,6 +130,12 @@ static void clipboard_paste(struct controller *controller) {
 
 void input_manager_process_text_input(struct input_manager *input_manager,
                                       const SDL_TextInputEvent *event) {
+    char c = event->text[0];
+    if (isalpha(c) || c == ' ') {
+        SDL_assert(event->text[1] == '\0');
+        // letters and space are handled as raw key event
+        return;
+    }
     struct control_event control_event;
     control_event.type = CONTROL_EVENT_TYPE_TEXT;
     control_event.text_event.text = SDL_strdup(event->text);
diff --git a/app/src/inputmanager.h b/app/src/input_manager.h
similarity index 97%
rename from app/src/inputmanager.h
rename to app/src/input_manager.h
index d7eaccbc..b9037aa1 100644
--- a/app/src/inputmanager.h
+++ b/app/src/input_manager.h
@@ -3,7 +3,7 @@
 
 #include "common.h"
 #include "controller.h"
-#include "fpscounter.h"
+#include "fps_counter.h"
 #include "frames.h"
 #include "screen.h"
 
diff --git a/app/src/installer.c b/app/src/installer.c
deleted file mode 100644
index 5b9e6637..00000000
--- a/app/src/installer.c
+++ /dev/null
@@ -1,182 +0,0 @@
-#include "installer.h"
-
-#include <string.h>
-#include "command.h"
-#include "lockutil.h"
-#include "log.h"
-
-// NOTE(adopi) this can be more generic:
-// it could be used with a command queue instead of a filename queue
-// then we would have a generic invoker (useful if we want to handle more async commands)
-
-SDL_bool apk_queue_is_empty(const struct apk_queue *queue) {
-    return queue->head == queue->tail;
-}
-
-SDL_bool apk_queue_is_full(const struct apk_queue *queue) {
-    return (queue->head + 1) % APK_QUEUE_SIZE == queue->tail;
-}
-
-SDL_bool apk_queue_init(struct apk_queue *queue) {
-    queue->head = 0;
-    queue->tail = 0;
-    return SDL_TRUE;
-}
-
-void apk_queue_destroy(struct apk_queue *queue) {
-    int i = queue->tail;
-    while (i != queue->head) {
-        SDL_free(queue->data[i]);
-        i = (i + 1) % APK_QUEUE_SIZE;
-    }
-}
-
-SDL_bool apk_queue_push(struct apk_queue *queue, const char *apk) {
-    if (apk_queue_is_full(queue)) {
-        return SDL_FALSE;
-    }
-    queue->data[queue->head] = SDL_strdup(apk);
-    queue->head = (queue->head + 1) % APK_QUEUE_SIZE;
-    return SDL_TRUE;
-}
-
-SDL_bool apk_queue_take(struct apk_queue *queue, char **apk) {
-    if (apk_queue_is_empty(queue)) {
-        return SDL_FALSE;
-    }
-    // transfer ownership
-    *apk = queue->data[queue->tail];
-    queue->tail = (queue->tail + 1) % APK_QUEUE_SIZE;
-    return SDL_TRUE;
-}
-
-SDL_bool installer_init(struct installer *installer, const char *serial) {
-
-    if (!apk_queue_init(&installer->queue)) {
-        return SDL_FALSE;
-    }
-
-    if (!(installer->mutex = SDL_CreateMutex())) {
-        return SDL_FALSE;
-    }
-
-    if (!(installer->event_cond = SDL_CreateCond())) {
-        SDL_DestroyMutex(installer->mutex);
-        return SDL_FALSE;
-    }
-
-    if (serial) {
-        installer->serial = SDL_strdup(serial);
-        if (!installer->serial) {
-            LOGW("Cannot strdup serial");
-            SDL_DestroyMutex(installer->mutex);
-            return SDL_FALSE;
-        }
-    } else {
-        installer->serial = NULL;
-    }
-
-    // lazy initialization
-    installer->initialized = SDL_FALSE;
-
-    installer->stopped = SDL_FALSE;
-    installer->current_process = PROCESS_NONE;
-
-    return SDL_TRUE;
-}
-
-void installer_destroy(struct installer *installer) {
-    SDL_DestroyCond(installer->event_cond);
-    SDL_DestroyMutex(installer->mutex);
-    apk_queue_destroy(&installer->queue);
-    SDL_free((void *) installer->serial);
-}
-
-SDL_bool installer_install_apk(struct installer *installer, const char *apk) {
-    SDL_bool res;
-
-    // start installer if it's used for the first time
-    if (!installer->initialized) {
-        if (!installer_start(installer)) {
-            return SDL_FALSE;
-        }
-        installer->initialized = SDL_TRUE;
-    }
-
-    mutex_lock(installer->mutex);
-    SDL_bool was_empty = apk_queue_is_empty(&installer->queue);
-    res = apk_queue_push(&installer->queue, apk);
-    if (was_empty) {
-        cond_signal(installer->event_cond);
-    }
-    mutex_unlock(installer->mutex);
-    return res;
-}
-
-static int run_installer(void *data) {
-    struct installer *installer = data;
-
-    for (;;) {
-        mutex_lock(installer->mutex);
-        installer->current_process = PROCESS_NONE;
-        while (!installer->stopped && apk_queue_is_empty(&installer->queue)) {
-            cond_wait(installer->event_cond, installer->mutex);
-        }
-        if (installer->stopped) {
-            // stop immediately, do not process further events
-            mutex_unlock(installer->mutex);
-            break;
-        }
-        char *current_apk;
-#ifdef BUILD_DEBUG
-        bool non_empty = apk_queue_take(&installer->queue, &current_apk);
-        SDL_assert(non_empty);
-#else
-        apk_queue_take(&installer->queue, &current_apk);
-#endif
-
-        LOGI("Installing %s...", current_apk);
-        process_t process = adb_install(installer->serial, current_apk);
-        installer->current_process = process;
-
-        mutex_unlock(installer->mutex);
-
-        if (process_check_success(process, "adb install")) {
-            LOGI("%s installed successfully", current_apk);
-        } else {
-            LOGE("Failed to install %s", current_apk);
-        }
-        SDL_free(current_apk);
-    }
-    return 0;
-}
-
-SDL_bool installer_start(struct installer *installer) {
-    LOGD("Starting installer thread");
-
-    installer->thread = SDL_CreateThread(run_installer, "installer", installer);
-    if (!installer->thread) {
-        LOGC("Could not start installer thread");
-        return SDL_FALSE;
-    }
-
-    return SDL_TRUE;
-}
-
-void installer_stop(struct installer *installer) {
-    mutex_lock(installer->mutex);
-    installer->stopped = SDL_TRUE;
-    cond_signal(installer->event_cond);
-    if (installer->current_process != PROCESS_NONE) {
-        if (!cmd_terminate(installer->current_process)) {
-            LOGW("Cannot terminate install process");
-        }
-        cmd_simple_wait(installer->current_process, NULL);
-        installer->current_process = PROCESS_NONE;
-    }
-    mutex_unlock(installer->mutex);
-}
-
-void installer_join(struct installer *installer) {
-    SDL_WaitThread(installer->thread, NULL);
-}
diff --git a/app/src/installer.h b/app/src/installer.h
deleted file mode 100644
index 0ff5f380..00000000
--- a/app/src/installer.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#ifndef APK_INSTALLER_H
-#define APK_INSTALLER_H
-
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_stdinc.h>
-#include <SDL2/SDL_thread.h>
-#include "command.h"
-
-#define APK_QUEUE_SIZE 16
-
-// NOTE(AdoPi) apk_queue and control_event can use a generic queue
-
-struct apk_queue {
-    char *data[APK_QUEUE_SIZE];
-    int tail;
-    int head;
-};
-
-struct installer {
-    const char *serial;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *event_cond;
-    SDL_bool stopped;
-    SDL_bool initialized;
-    process_t current_process;
-    struct apk_queue queue;
-};
-
-SDL_bool installer_init(struct installer *installer, const char *serial);
-void installer_destroy(struct installer *installer);
-
-SDL_bool installer_start(struct installer *installer);
-void installer_stop(struct installer *installer);
-void installer_join(struct installer *installer);
-
-// install an apk
-SDL_bool installer_install_apk(struct installer *installer, const char *filename);
-
-#endif
diff --git a/app/src/lockutil.c b/app/src/lock_util.c
similarity index 96%
rename from app/src/lockutil.c
rename to app/src/lock_util.c
index 67183d71..723d3b13 100644
--- a/app/src/lockutil.c
+++ b/app/src/lock_util.c
@@ -1,3 +1,4 @@
+#include <lock_util.h>
 #include <stdlib.h>
 #include <SDL2/SDL_mutex.h>
 
diff --git a/app/src/lockutil.h b/app/src/lock_util.h
similarity index 100%
rename from app/src/lockutil.h
rename to app/src/lock_util.h
diff --git a/app/src/main.c b/app/src/main.c
index 1317da79..e1d6782e 100644
--- a/app/src/main.c
+++ b/app/src/main.c
@@ -11,6 +11,7 @@
 struct args {
     const char *serial;
     const char *crop;
+    SDL_bool fullscreen;
     SDL_bool help;
     SDL_bool version;
     SDL_bool show_touches;
@@ -36,6 +37,9 @@ static void usage(const char *arg0) {
         "        (typically, portrait for a phone, landscape for a tablet).\n"
         "        Any --max-size value is computed on the cropped size.\n"
         "\n"
+        "    -f, --fullscreen\n"
+        "        Start in fullscreen.\n"
+        "\n"
         "    -h, --help\n"
         "        Print this help.\n"
         "\n"
@@ -200,6 +204,7 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
     static const struct option long_options[] = {
         {"bit-rate",     required_argument, NULL, 'b'},
         {"crop",         required_argument, NULL, 'c'},
+        {"fullscreen",   no_argument,       NULL, 'f'},
         {"help",         no_argument,       NULL, 'h'},
         {"max-size",     required_argument, NULL, 'm'},
         {"port",         required_argument, NULL, 'p'},
@@ -209,7 +214,7 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
         {NULL,           0,                 NULL, 0  },
     };
     int c;
-    while ((c = getopt_long(argc, argv, "b:c:hm:p:s:tv", long_options, NULL)) != -1) {
+    while ((c = getopt_long(argc, argv, "b:c:fhm:p:s:tv", long_options, NULL)) != -1) {
         switch (c) {
             case 'b':
                 if (!parse_bit_rate(optarg, &args->bit_rate)) {
@@ -219,6 +224,9 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
             case 'c':
                 args->crop = optarg;
                 break;
+            case 'f':
+                args->fullscreen = SDL_TRUE;
+                break;
             case 'h':
                 args->help = SDL_TRUE;
                 break;
@@ -305,10 +313,17 @@ int main(int argc, char *argv[]) {
         .max_size = args.max_size,
         .bit_rate = args.bit_rate,
         .show_touches = args.show_touches,
+        .fullscreen = args.fullscreen,
     };
     int res = scrcpy(&options) ? 0 : 1;
 
     avformat_network_deinit(); // ignore failure
 
+#if defined (__WINDOWS__) && ! defined (WINDOWS_NOCONSOLE)
+    if (res != 0) {
+        fprintf(stderr, "Press any key to continue...\n");
+        getchar();
+    }
+#endif
     return res;
 }
diff --git a/app/src/scrcpy.c b/app/src/scrcpy.c
index 23de4984..54a7f993 100644
--- a/app/src/scrcpy.c
+++ b/app/src/scrcpy.c
@@ -13,23 +13,23 @@
 #include "decoder.h"
 #include "device.h"
 #include "events.h"
+#include "file_handler.h"
 #include "frames.h"
-#include "fpscounter.h"
-#include "inputmanager.h"
+#include "fps_counter.h"
+#include "input_manager.h"
 #include "log.h"
-#include "lockutil.h"
+#include "lock_util.h"
 #include "net.h"
 #include "screen.h"
 #include "server.h"
-#include "tinyxpm.h"
-#include "installer.h"
+#include "tiny_xpm.h"
 
 static struct server server = SERVER_INITIALIZER;
 static struct screen screen = SCREEN_INITIALIZER;
 static struct frames frames;
 static struct decoder decoder;
 static struct controller controller;
-static struct installer installer;
+static struct file_handler file_handler;
 
 static struct input_manager input_manager = {
     .controller = &controller,
@@ -56,6 +56,11 @@ static int event_watcher(void *data, SDL_Event *event) {
 }
 #endif
 
+static SDL_bool is_apk(const char *file) {
+    const char *ext = strrchr(file, '.');
+    return ext && !strcmp(ext, ".apk");
+}
+
 static SDL_bool event_loop(void) {
 #ifdef CONTINUOUS_RESIZING_WORKAROUND
     SDL_AddEventWatch(event_watcher, NULL);
@@ -104,9 +109,16 @@ static SDL_bool event_loop(void) {
             case SDL_MOUSEBUTTONUP:
                 input_manager_process_mouse_button(&input_manager, &event.button);
                 break;
-            case SDL_DROPFILE:
-                installer_install_apk(&installer, event.drop.file);
+            case SDL_DROPFILE: {
+                file_handler_action_t action;
+                if (is_apk(event.drop.file)) {
+                    action = ACTION_INSTALL_APK;
+                } else {
+                    action = ACTION_PUSH_FILE;
+                }
+                file_handler_request(&file_handler, action, event.drop.file);
                 break;
+            }
         }
     }
     return SDL_FALSE;
@@ -175,7 +187,7 @@ SDL_bool scrcpy(const struct scrcpy_options *options) {
         goto finally_destroy_server;
     }
 
-    if (!installer_init(&installer, server.serial)) {
+    if (!file_handler_init(&file_handler, server.serial)) {
         ret = SDL_FALSE;
         server_stop(&server);
         goto finally_destroy_frames;
@@ -188,7 +200,7 @@ SDL_bool scrcpy(const struct scrcpy_options *options) {
     if (!decoder_start(&decoder)) {
         ret = SDL_FALSE;
         server_stop(&server);
-        goto finally_destroy_installer;
+        goto finally_destroy_file_handler;
     }
 
     if (!controller_init(&controller, device_socket)) {
@@ -211,6 +223,10 @@ SDL_bool scrcpy(const struct scrcpy_options *options) {
         show_touches_waited = SDL_TRUE;
     }
 
+    if (options->fullscreen) {
+        screen_switch_fullscreen(&screen);
+    }
+
     ret = event_loop();
     LOGD("quit...");
 
@@ -226,10 +242,10 @@ finally_stop_decoder:
     // stop the server before decoder_join() to wake up the decoder
     server_stop(&server);
     decoder_join(&decoder);
-finally_destroy_installer:
-    installer_stop(&installer);
-    installer_join(&installer);
-    installer_destroy(&installer);
+finally_destroy_file_handler:
+    file_handler_stop(&file_handler);
+    file_handler_join(&file_handler);
+    file_handler_destroy(&file_handler);
 finally_destroy_frames:
     frames_destroy(&frames);
 finally_destroy_server:
diff --git a/app/src/scrcpy.h b/app/src/scrcpy.h
index 7ddabf28..f64d4c02 100644
--- a/app/src/scrcpy.h
+++ b/app/src/scrcpy.h
@@ -10,6 +10,7 @@ struct scrcpy_options {
     Uint16 max_size;
     Uint32 bit_rate;
     SDL_bool show_touches;
+    SDL_bool fullscreen;
 };
 
 SDL_bool scrcpy(const struct scrcpy_options *options);
diff --git a/app/src/screen.c b/app/src/screen.c
index 5b4f0634..5d7a4009 100644
--- a/app/src/screen.c
+++ b/app/src/screen.c
@@ -4,9 +4,9 @@
 #include <string.h>
 
 #include "icon.xpm"
-#include "lockutil.h"
+#include "lock_util.h"
 #include "log.h"
-#include "tinyxpm.h"
+#include "tiny_xpm.h"
 
 #define DISPLAY_MARGINS 96
 
diff --git a/app/src/strutil.c b/app/src/str_util.c
similarity index 68%
rename from app/src/strutil.c
rename to app/src/str_util.c
index 0b5ac12d..f234346e 100644
--- a/app/src/strutil.c
+++ b/app/src/str_util.c
@@ -1,4 +1,7 @@
-#include "strutil.h"
+#include "str_util.h"
+
+#include <stdlib.h>
+#include <string.h>
 
 size_t xstrncpy(char *dest, const char *src, size_t n) {
     size_t i;
@@ -31,3 +34,16 @@ truncated:
     dst[n - 1] = '\0';
     return n;
 }
+
+char *strquote(const char *src) {
+    size_t len = strlen(src);
+    char *quoted = malloc(len + 3);
+    if (!quoted) {
+        return NULL;
+    }
+    memcpy(&quoted[1], src, len);
+    quoted[0] = '"';
+    quoted[len + 1] = '"';
+    quoted[len + 2] = '\0';
+    return quoted;
+}
diff --git a/app/src/strutil.h b/app/src/str_util.h
similarity index 84%
rename from app/src/strutil.h
rename to app/src/str_util.h
index 1bf8088e..9433f768 100644
--- a/app/src/strutil.h
+++ b/app/src/str_util.h
@@ -16,4 +16,8 @@ size_t xstrncpy(char *dest, const char *src, size_t n);
 // occurred, or n if truncated
 size_t xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
 
+// quote a string
+// returns the new allocated string, to be freed by the caller
+char *strquote(const char *src);
+
 #endif
diff --git a/app/src/sys/unix/command.c b/app/src/sys/unix/command.c
index 0083a93b..ed9bbeac 100644
--- a/app/src/sys/unix/command.c
+++ b/app/src/sys/unix/command.c
@@ -1,5 +1,7 @@
 #include "command.h"
 
+#include <errno.h>
+#include <fcntl.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <sys/types.h>
@@ -7,18 +9,65 @@
 #include <unistd.h>
 #include "log.h"
 
-pid_t cmd_execute(const char *path, const char *const argv[]) {
-    pid_t pid = fork();
-    if (pid == -1) {
-        perror("fork");
-        return -1;
+enum process_result cmd_execute(const char *path, const char *const argv[], pid_t *pid) {
+    int fd[2];
+
+    if (pipe(fd) == -1) {
+        perror("pipe");
+        return PROCESS_ERROR_GENERIC;
     }
-    if (pid == 0) {
-        execvp(path, (char *const *)argv);
-        perror("exec");
+
+    enum process_result ret = PROCESS_SUCCESS;
+
+    *pid = fork();
+    if (*pid == -1) {
+        perror("fork");
+        ret = PROCESS_ERROR_GENERIC;
+        goto end;
+    }
+
+    if (*pid > 0) {
+        // parent close write side
+        close(fd[1]);
+        fd[1] = -1;
+        // wait for EOF or receive errno from child
+        if (read(fd[0], &ret, sizeof(ret)) == -1) {
+            perror("read");
+            ret = PROCESS_ERROR_GENERIC;
+            goto end;
+        }
+    } else if (*pid == 0) {
+        // child close read side
+        close(fd[0]);
+        if (fcntl(fd[1], F_SETFD, FD_CLOEXEC) == 0) {
+            execvp(path, (char *const *)argv);
+            if (errno == ENOENT) {
+                ret = PROCESS_ERROR_MISSING_BINARY;
+            } else {
+                ret = PROCESS_ERROR_GENERIC;
+            }
+            perror("exec");
+        } else {
+            perror("fcntl");
+            ret = PROCESS_ERROR_GENERIC;
+        }
+        // send ret to the parent
+        if (write(fd[1], &ret, sizeof(ret)) == -1) {
+            perror("write");
+        }
+        // close write side before exiting
+        close(fd[1]);
         _exit(1);
     }
-    return pid;
+
+end:
+    if (fd[0] != -1) {
+        close(fd[0]);
+    }
+    if (fd[1] != -1) {
+        close(fd[1]);
+    }
+    return ret;
 }
 
 SDL_bool cmd_terminate(pid_t pid) {
diff --git a/app/src/sys/win/command.c b/app/src/sys/win/command.c
index 32d2a8b8..1a14d89a 100644
--- a/app/src/sys/win/command.c
+++ b/app/src/sys/win/command.c
@@ -2,9 +2,9 @@
 
 #include "config.h"
 #include "log.h"
-#include "strutil.h"
+#include "str_util.h"
 
-HANDLE cmd_execute(const char *path, const char *const argv[]) {
+enum process_result cmd_execute(const char *path, const char *const argv[], HANDLE *handle) {
     STARTUPINFO si;
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
@@ -18,7 +18,8 @@ HANDLE cmd_execute(const char *path, const char *const argv[]) {
     size_t ret = xstrjoin(cmd, argv, ' ', sizeof(cmd));
     if (ret >= sizeof(cmd)) {
         LOGE("Command too long (%" PRIsizet " chars)", sizeof(cmd) - 1);
-        return NULL;
+        *handle = NULL;
+        return PROCESS_ERROR_GENERIC;
     }
 
 #ifdef WINDOWS_NOCONSOLE
@@ -27,10 +28,15 @@ HANDLE cmd_execute(const char *path, const char *const argv[]) {
     int flags = 0;
 #endif
     if (!CreateProcess(NULL, cmd, NULL, NULL, FALSE, flags, NULL, NULL, &si, &pi)) {
-        return NULL;
+        *handle = NULL;
+        if (GetLastError() == ERROR_FILE_NOT_FOUND) {
+            return PROCESS_ERROR_MISSING_BINARY;
+        }
+        return PROCESS_ERROR_GENERIC;
     }
 
-    return pi.hProcess;
+    *handle = pi.hProcess;
+    return PROCESS_SUCCESS;
 }
 
 SDL_bool cmd_terminate(HANDLE handle) {
diff --git a/app/src/tinyxpm.c b/app/src/tiny_xpm.c
similarity index 99%
rename from app/src/tinyxpm.c
rename to app/src/tiny_xpm.c
index 949aeeae..3b80b88e 100644
--- a/app/src/tinyxpm.c
+++ b/app/src/tiny_xpm.c
@@ -1,4 +1,4 @@
-#include "tinyxpm.h"
+#include "tiny_xpm.h"
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/app/src/tinyxpm.h b/app/src/tiny_xpm.h
similarity index 100%
rename from app/src/tinyxpm.h
rename to app/src/tiny_xpm.h
diff --git a/app/tests/test_control_event_queue.c b/app/tests/test_control_event_queue.c
index dc89fa2d..a27181b6 100644
--- a/app/tests/test_control_event_queue.c
+++ b/app/tests/test_control_event_queue.c
@@ -1,9 +1,9 @@
 #include <assert.h>
 #include <string.h>
 
-#include "controlevent.h"
+#include "control_event.h"
 
-static void test_control_event_queue_empty() {
+static void test_control_event_queue_empty(void) {
     struct control_event_queue queue;
     SDL_bool init_ok = control_event_queue_init(&queue);
     assert(init_ok);
@@ -25,7 +25,7 @@ static void test_control_event_queue_empty() {
     control_event_queue_destroy(&queue);
 }
 
-static void test_control_event_queue_full() {
+static void test_control_event_queue_full(void) {
     struct control_event_queue queue;
     SDL_bool init_ok = control_event_queue_init(&queue);
     assert(init_ok);
@@ -43,7 +43,7 @@ static void test_control_event_queue_full() {
     control_event_queue_destroy(&queue);
 }
 
-static void test_control_event_queue_push_take() {
+static void test_control_event_queue_push_take(void) {
     struct control_event_queue queue;
     SDL_bool init_ok = control_event_queue_init(&queue);
     assert(init_ok);
@@ -87,7 +87,7 @@ static void test_control_event_queue_push_take() {
     control_event_queue_destroy(&queue);
 }
 
-int main() {
+int main(void) {
     test_control_event_queue_empty();
     test_control_event_queue_full();
     test_control_event_queue_push_take();
diff --git a/app/tests/test_control_event_serialize.c b/app/tests/test_control_event_serialize.c
index e15c64bf..21d7909b 100644
--- a/app/tests/test_control_event_serialize.c
+++ b/app/tests/test_control_event_serialize.c
@@ -1,9 +1,9 @@
 #include <assert.h>
 #include <string.h>
 
-#include "controlevent.h"
+#include "control_event.h"
 
-static void test_serialize_keycode_event() {
+static void test_serialize_keycode_event(void) {
     struct control_event event = {
         .type = CONTROL_EVENT_TYPE_KEYCODE,
         .keycode_event = {
@@ -26,7 +26,7 @@ static void test_serialize_keycode_event() {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-static void test_serialize_text_event() {
+static void test_serialize_text_event(void) {
     struct control_event event = {
         .type = CONTROL_EVENT_TYPE_TEXT,
         .text_event = {
@@ -46,7 +46,7 @@ static void test_serialize_text_event() {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-static void test_serialize_long_text_event() {
+static void test_serialize_long_text_event(void) {
     struct control_event event;
     event.type = CONTROL_EVENT_TYPE_TEXT;
     char text[TEXT_MAX_LENGTH];
@@ -66,7 +66,7 @@ static void test_serialize_long_text_event() {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-static void test_serialize_mouse_event() {
+static void test_serialize_mouse_event(void) {
     struct control_event event = {
         .type = CONTROL_EVENT_TYPE_MOUSE,
         .mouse_event = {
@@ -99,7 +99,7 @@ static void test_serialize_mouse_event() {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-static void test_serialize_scroll_event() {
+static void test_serialize_scroll_event(void) {
     struct control_event event = {
         .type = CONTROL_EVENT_TYPE_SCROLL,
         .scroll_event = {
@@ -132,11 +132,10 @@ static void test_serialize_scroll_event() {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-int main() {
+int main(void) {
     test_serialize_keycode_event();
     test_serialize_text_event();
     test_serialize_long_text_event();
     test_serialize_mouse_event();
     test_serialize_scroll_event();
-    return 0;
 }
diff --git a/app/tests/test_strutil.c b/app/tests/test_strutil.c
index 6dbc2ff3..1dd7fbbe 100644
--- a/app/tests/test_strutil.c
+++ b/app/tests/test_strutil.c
@@ -1,9 +1,9 @@
 #include <assert.h>
 #include <string.h>
 
-#include "strutil.h"
+#include "str_util.h"
 
-static void test_xstrncpy_simple() {
+static void test_xstrncpy_simple(void) {
     char s[] = "xxxxxxxxxx";
     size_t w = xstrncpy(s, "abcdef", sizeof(s));
 
@@ -20,7 +20,7 @@ static void test_xstrncpy_simple() {
     assert(!strcmp("abcdef", s));
 }
 
-static void test_xstrncpy_just_fit() {
+static void test_xstrncpy_just_fit(void) {
     char s[] = "xxxxxx";
     size_t w = xstrncpy(s, "abcdef", sizeof(s));
 
@@ -34,7 +34,7 @@ static void test_xstrncpy_just_fit() {
     assert(!strcmp("abcdef", s));
 }
 
-static void test_xstrncpy_truncated() {
+static void test_xstrncpy_truncated(void) {
     char s[] = "xxx";
     size_t w = xstrncpy(s, "abcdef", sizeof(s));
 
@@ -48,7 +48,7 @@ static void test_xstrncpy_truncated() {
     assert(!strncmp("abcdef", s, 3));
 }
 
-static void test_xstrjoin_simple() {
+static void test_xstrjoin_simple(void) {
     const char *const tokens[] = { "abc", "de", "fghi", NULL };
     char s[] = "xxxxxxxxxxxxxx";
     size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
@@ -66,7 +66,7 @@ static void test_xstrjoin_simple() {
     assert(!strcmp("abc de fghi", s));
 }
 
-static void test_xstrjoin_just_fit() {
+static void test_xstrjoin_just_fit(void) {
     const char *const tokens[] = { "abc", "de", "fghi", NULL };
     char s[] = "xxxxxxxxxxx";
     size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
@@ -81,7 +81,7 @@ static void test_xstrjoin_just_fit() {
     assert(!strcmp("abc de fghi", s));
 }
 
-static void test_xstrjoin_truncated_in_token() {
+static void test_xstrjoin_truncated_in_token(void) {
     const char *const tokens[] = { "abc", "de", "fghi", NULL };
     char s[] = "xxxxx";
     size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
@@ -96,7 +96,7 @@ static void test_xstrjoin_truncated_in_token() {
     assert(!strcmp("abc d", s));
 }
 
-static void test_xstrjoin_truncated_before_sep() {
+static void test_xstrjoin_truncated_before_sep(void) {
     const char *const tokens[] = { "abc", "de", "fghi", NULL };
     char s[] = "xxxxxx";
     size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
@@ -111,7 +111,7 @@ static void test_xstrjoin_truncated_before_sep() {
     assert(!strcmp("abc de", s));
 }
 
-static void test_xstrjoin_truncated_after_sep() {
+static void test_xstrjoin_truncated_after_sep(void) {
     const char *const tokens[] = { "abc", "de", "fghi", NULL };
     char s[] = "xxxxxxx";
     size_t w = xstrjoin(s, tokens, ' ', sizeof(s));
@@ -126,7 +126,7 @@ static void test_xstrjoin_truncated_after_sep() {
     assert(!strcmp("abc de ", s));
 }
 
-int main() {
+int main(void) {
     test_xstrncpy_simple();
     test_xstrncpy_just_fit();
     test_xstrncpy_truncated();
diff --git a/cross_win32.txt b/cross_win32.txt
index 8cb650aa..05167a33 100644
--- a/cross_win32.txt
+++ b/cross_win32.txt
@@ -15,6 +15,6 @@ cpu = 'i686'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.0-win32-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.0-win32-dev'
+prebuilt_ffmpeg_shared = 'ffmpeg-4.0.2-win32-shared'
+prebuilt_ffmpeg_dev = 'ffmpeg-4.0.2-win32-dev'
 prebuilt_sdl2 = 'SDL2-2.0.8/i686-w64-mingw32'
diff --git a/cross_win64.txt b/cross_win64.txt
index 0110d5bb..f358b56d 100644
--- a/cross_win64.txt
+++ b/cross_win64.txt
@@ -15,6 +15,6 @@ cpu = 'x86_64'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.0-win64-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.0-win64-dev'
+prebuilt_ffmpeg_shared = 'ffmpeg-4.0.2-win64-shared'
+prebuilt_ffmpeg_dev = 'ffmpeg-4.0.2-win64-dev'
 prebuilt_sdl2 = 'SDL2-2.0.8/x86_64-w64-mingw32'
diff --git a/prebuilt-deps/Makefile b/prebuilt-deps/Makefile
index 557cc675..c49b9211 100644
--- a/prebuilt-deps/Makefile
+++ b/prebuilt-deps/Makefile
@@ -10,24 +10,24 @@ prepare-win32: prepare-sdl2 prepare-ffmpeg-shared-win32 prepare-ffmpeg-dev-win32
 prepare-win64: prepare-sdl2 prepare-ffmpeg-shared-win64 prepare-ffmpeg-dev-win64 prepare-adb
 
 prepare-ffmpeg-shared-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.0-win32-shared.zip \
-		530c92df0ca14c35901b4b681847d62da3c50a0cc9b7ced37b04968f6b5c243d \
-		ffmpeg-4.0-win32-shared
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.0.2-win32-shared.zip \
+		cc190a3a4cf7bfbd4fbaa92609c1501a1de458055e6cfea8b745c1d515013aa8 \
+		ffmpeg-4.0.2-win32-shared
 
 prepare-ffmpeg-dev-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.0-win32-dev.zip \
-		e2f5200b5e73c4d0abb9b89c4ffc0438f92a0aadc54c81cf57e18c81a9f11c6b \
-		ffmpeg-4.0-win32-dev
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.0.2-win32-dev.zip \
+		c72c74bad74ac0541f1b43090c26a50017c49041c182a703abd2057bb8cdc238 \
+		ffmpeg-4.0.2-win32-dev
 
 prepare-ffmpeg-shared-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.0-win64-shared.zip \
-		8fe2d344463dbefc2db4239a4203a55ed0324faceaae57276a40c4fabda84c37 \
-		ffmpeg-4.0-win64-shared
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.0.2-win64-shared.zip \
+		ede566aca8b5348dff85570f9638c6bad33209f9419f79db7bde7daa37599bff \
+		ffmpeg-4.0.2-win64-shared
 
 prepare-ffmpeg-dev-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.0-win64-dev.zip \
-		facced738eabfc53fa92834dea8b24426f64db61298688fed480145945be07fa \
-		ffmpeg-4.0-win64-dev
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.0.2-win64-dev.zip \
+		23ee994161c51285cb956b98d3caa499d48083dae7b26c1fdf77f22e98df1c5f \
+		ffmpeg-4.0.2-win64-dev
 
 prepare-sdl2:
 	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.8-mingw.tar.gz \
@@ -35,6 +35,6 @@ prepare-sdl2:
 		SDL2-2.0.8
 
 prepare-adb:
-	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r27.0.1-windows.zip \
-	    880662adfb0d6911ff250b9e13930ae1a4110fc36d5866afd4f8f56d935f7939 \
+	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r28.0.1-windows.zip \
+		db78f726d5dc653706dcd15a462ab1b946c643f598df76906c4c1858411c54df \
 		platform-tools
diff --git a/server/build.gradle b/server/build.gradle
index 3e1c67e4..957a61d7 100644
--- a/server/build.gradle
+++ b/server/build.gradle
@@ -6,8 +6,8 @@ android {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 4
-        versionName "1.3"
+        versionCode 5
+        versionName "1.4"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
diff --git a/server/src/main/java/com/genymobile/scrcpy/DesktopConnection.java b/server/src/main/java/com/genymobile/scrcpy/DesktopConnection.java
index d5740c15..d87a7fd8 100644
--- a/server/src/main/java/com/genymobile/scrcpy/DesktopConnection.java
+++ b/server/src/main/java/com/genymobile/scrcpy/DesktopConnection.java
@@ -5,9 +5,9 @@ import android.net.LocalSocket;
 import android.net.LocalSocketAddress;
 
 import java.io.Closeable;
+import java.io.FileDescriptor;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
 
 public final class DesktopConnection implements Closeable {
@@ -18,14 +18,14 @@ public final class DesktopConnection implements Closeable {
 
     private final LocalSocket socket;
     private final InputStream inputStream;
-    private final OutputStream outputStream;
+    private final FileDescriptor fd;
 
     private final ControlEventReader reader = new ControlEventReader();
 
     private DesktopConnection(LocalSocket socket) throws IOException {
         this.socket = socket;
         inputStream = socket.getInputStream();
-        outputStream = socket.getOutputStream();
+        fd = socket.getFileDescriptor();
     }
 
     private static LocalSocket connect(String abstractName) throws IOException {
@@ -78,11 +78,11 @@ public final class DesktopConnection implements Closeable {
         buffer[DEVICE_NAME_FIELD_LENGTH + 1] = (byte) width;
         buffer[DEVICE_NAME_FIELD_LENGTH + 2] = (byte) (height >> 8);
         buffer[DEVICE_NAME_FIELD_LENGTH + 3] = (byte) height;
-        outputStream.write(buffer, 0, buffer.length);
+        IO.writeFully(fd, buffer, 0, buffer.length);
     }
 
-    public OutputStream getOutputStream() {
-        return outputStream;
+    public FileDescriptor getFd() {
+        return fd;
     }
 
     public ControlEvent receiveControlEvent() throws IOException {
diff --git a/server/src/main/java/com/genymobile/scrcpy/IO.java b/server/src/main/java/com/genymobile/scrcpy/IO.java
new file mode 100644
index 00000000..bfd48be2
--- /dev/null
+++ b/server/src/main/java/com/genymobile/scrcpy/IO.java
@@ -0,0 +1,31 @@
+package com.genymobile.scrcpy;
+
+import android.system.ErrnoException;
+import android.system.Os;
+import android.system.OsConstants;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+public class IO {
+    private IO() {
+        // not instantiable
+    }
+
+    public static void writeFully(FileDescriptor fd, ByteBuffer from) throws IOException {
+        while (from.hasRemaining()) {
+            try {
+                Os.write(fd, from);
+            } catch (ErrnoException e) {
+                if (e.errno != OsConstants.EINTR) {
+                    throw new IOException(e);
+                }
+            }
+        }
+    }
+
+    public static void writeFully(FileDescriptor fd, byte[] buffer, int offset, int len) throws IOException {
+        writeFully(fd, ByteBuffer.wrap(buffer, offset, len));
+    }
+}
diff --git a/server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java b/server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java
index e2ee8122..636bbb00 100644
--- a/server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java
+++ b/server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java
@@ -9,8 +9,8 @@ import android.media.MediaFormat;
 import android.os.IBinder;
 import android.view.Surface;
 
+import java.io.FileDescriptor;
 import java.io.IOException;
-import java.io.OutputStream;
 import java.nio.ByteBuffer;
 import java.util.concurrent.atomic.AtomicBoolean;
 
@@ -48,7 +48,7 @@ public class ScreenEncoder implements Device.RotationListener {
         return rotationChanged.getAndSet(false);
     }
 
-    public void streamScreen(Device device, OutputStream outputStream) throws IOException {
+    public void streamScreen(Device device, FileDescriptor fd) throws IOException {
         MediaFormat format = createFormat(bitRate, frameRate, iFrameInterval);
         device.setRotationListener(this);
         boolean alive;
@@ -64,7 +64,7 @@ public class ScreenEncoder implements Device.RotationListener {
                 setDisplaySurface(display, surface, contentRect, videoRect);
                 codec.start();
                 try {
-                    alive = encode(codec, outputStream);
+                    alive = encode(codec, fd);
                 } finally {
                     codec.stop();
                     destroyDisplay(display);
@@ -77,9 +77,7 @@ public class ScreenEncoder implements Device.RotationListener {
         }
     }
 
-    private boolean encode(MediaCodec codec, OutputStream outputStream) throws IOException {
-        @SuppressWarnings("checkstyle:MagicNumber")
-        byte[] buf = new byte[bitRate / 8]; // may contain up to 1 second of video
+    private boolean encode(MediaCodec codec, FileDescriptor fd) throws IOException {
         boolean eof = false;
         MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
         while (!consumeRotationChange() && !eof) {
@@ -91,15 +89,8 @@ public class ScreenEncoder implements Device.RotationListener {
                     break;
                 }
                 if (outputBufferId >= 0) {
-                    ByteBuffer outputBuffer = codec.getOutputBuffer(outputBufferId);
-                    while (outputBuffer.hasRemaining()) {
-                        int remaining = outputBuffer.remaining();
-                        int len = Math.min(buf.length, remaining);
-                        // the outputBuffer is probably direct (it has no underlying array), and LocalSocket does not expose channels,
-                        // so we must copy the data locally to write them manually to the output stream
-                        outputBuffer.get(buf, 0, len);
-                        outputStream.write(buf, 0, len);
-                    }
+                    ByteBuffer codecBuffer = codec.getOutputBuffer(outputBufferId);
+                    IO.writeFully(fd, codecBuffer);
                 }
             } finally {
                 if (outputBufferId >= 0) {
diff --git a/server/src/main/java/com/genymobile/scrcpy/Server.java b/server/src/main/java/com/genymobile/scrcpy/Server.java
index 9fd93863..b218e83d 100644
--- a/server/src/main/java/com/genymobile/scrcpy/Server.java
+++ b/server/src/main/java/com/genymobile/scrcpy/Server.java
@@ -21,7 +21,7 @@ public final class Server {
 
             try {
                 // synchronous
-                screenEncoder.streamScreen(device, connection.getOutputStream());
+                screenEncoder.streamScreen(device, connection.getFd());
             } catch (IOException e) {
                 // this is expected on close
                 Ln.d("Screen streaming stopped");