477 lines
13 KiB
C
477 lines
13 KiB
C
#include "scrcpy.h"
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <libavformat/avformat.h>
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#include <sys/time.h>
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#include <SDL2/SDL.h>
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#ifdef _WIN32
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// not needed here, but winsock2.h must never be included AFTER windows.h
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# include <winsock2.h>
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# include <windows.h>
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#endif
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#include "controller.h"
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#include "decoder.h"
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#include "events.h"
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#include "file_handler.h"
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#include "input_manager.h"
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#include "recorder.h"
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#include "screen.h"
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#include "server.h"
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#include "stream.h"
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#include "tiny_xpm.h"
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#include "util/log.h"
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#include "util/net.h"
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#ifdef HAVE_V4L2
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# include "v4l2_sink.h"
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#endif
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struct scrcpy {
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struct server server;
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struct screen screen;
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struct stream stream;
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struct decoder decoder;
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struct recorder recorder;
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#ifdef HAVE_V4L2
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struct sc_v4l2_sink v4l2_sink;
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#endif
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struct controller controller;
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struct file_handler file_handler;
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struct input_manager input_manager;
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};
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#ifdef _WIN32
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BOOL WINAPI windows_ctrl_handler(DWORD ctrl_type) {
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if (ctrl_type == CTRL_C_EVENT) {
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SDL_Event event;
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event.type = SDL_QUIT;
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SDL_PushEvent(&event);
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return TRUE;
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}
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return FALSE;
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}
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#endif // _WIN32
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// init SDL and set appropriate hints
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static bool
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sdl_init_and_configure(bool display, const char *render_driver,
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bool disable_screensaver) {
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uint32_t flags = display ? SDL_INIT_VIDEO : SDL_INIT_EVENTS;
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if (SDL_Init(flags)) {
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LOGC("Could not initialize SDL: %s", SDL_GetError());
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return false;
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}
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atexit(SDL_Quit);
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#ifdef _WIN32
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// Clean up properly on Ctrl+C on Windows
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bool ok = SetConsoleCtrlHandler(windows_ctrl_handler, TRUE);
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if (!ok) {
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LOGW("Could not set Ctrl+C handler");
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}
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#endif // _WIN32
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if (!display) {
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return true;
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}
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if (render_driver && !SDL_SetHint(SDL_HINT_RENDER_DRIVER, render_driver)) {
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LOGW("Could not set render driver");
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}
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// Linear filtering
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if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1")) {
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LOGW("Could not enable linear filtering");
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}
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#ifdef SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
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// Handle a click to gain focus as any other click
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if (!SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1")) {
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LOGW("Could not enable mouse focus clickthrough");
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}
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#endif
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#ifdef SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
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// Disable compositor bypassing on X11
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if (!SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0")) {
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LOGW("Could not disable X11 compositor bypass");
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}
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#endif
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// Do not minimize on focus loss
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if (!SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0")) {
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LOGW("Could not disable minimize on focus loss");
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}
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if (disable_screensaver) {
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LOGD("Screensaver disabled");
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SDL_DisableScreenSaver();
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} else {
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LOGD("Screensaver enabled");
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SDL_EnableScreenSaver();
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}
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return true;
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}
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static bool
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is_apk(const char *file) {
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const char *ext = strrchr(file, '.');
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return ext && !strcmp(ext, ".apk");
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}
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enum event_result {
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EVENT_RESULT_CONTINUE,
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EVENT_RESULT_STOPPED_BY_USER,
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EVENT_RESULT_STOPPED_BY_EOS,
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};
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static enum event_result
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handle_event(struct scrcpy *s, const struct scrcpy_options *options,
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SDL_Event *event) {
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switch (event->type) {
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case EVENT_STREAM_STOPPED:
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LOGD("Video stream stopped");
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return EVENT_RESULT_STOPPED_BY_EOS;
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case SDL_QUIT:
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LOGD("User requested to quit");
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return EVENT_RESULT_STOPPED_BY_USER;
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case SDL_DROPFILE: {
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if (!options->control) {
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break;
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}
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char *file = strdup(event->drop.file);
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SDL_free(event->drop.file);
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if (!file) {
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LOGW("Could not strdup drop filename\n");
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break;
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}
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file_handler_action_t action;
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if (is_apk(file)) {
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action = ACTION_INSTALL_APK;
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} else {
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action = ACTION_PUSH_FILE;
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}
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file_handler_request(&s->file_handler, action, file);
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goto end;
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}
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}
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bool consumed = screen_handle_event(&s->screen, event);
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if (consumed) {
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goto end;
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}
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consumed = input_manager_handle_event(&s->input_manager, event);
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(void) consumed;
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end:
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return EVENT_RESULT_CONTINUE;
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}
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static bool
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event_loop(struct scrcpy *s, const struct scrcpy_options *options) {
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SDL_Event event;
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while (SDL_WaitEvent(&event)) {
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enum event_result result = handle_event(s, options, &event);
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switch (result) {
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case EVENT_RESULT_STOPPED_BY_USER:
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return true;
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case EVENT_RESULT_STOPPED_BY_EOS:
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LOGW("Device disconnected");
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return false;
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case EVENT_RESULT_CONTINUE:
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break;
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}
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}
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return false;
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}
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static SDL_LogPriority
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sdl_priority_from_av_level(int level) {
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switch (level) {
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case AV_LOG_PANIC:
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case AV_LOG_FATAL:
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return SDL_LOG_PRIORITY_CRITICAL;
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case AV_LOG_ERROR:
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return SDL_LOG_PRIORITY_ERROR;
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case AV_LOG_WARNING:
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return SDL_LOG_PRIORITY_WARN;
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case AV_LOG_INFO:
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return SDL_LOG_PRIORITY_INFO;
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}
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// do not forward others, which are too verbose
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return 0;
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}
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static void
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av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
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(void) avcl;
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SDL_LogPriority priority = sdl_priority_from_av_level(level);
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if (priority == 0) {
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return;
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}
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char *local_fmt = malloc(strlen(fmt) + 10);
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if (!local_fmt) {
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LOGC("Could not allocate string");
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return;
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}
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// strcpy is safe here, the destination is large enough
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strcpy(local_fmt, "[FFmpeg] ");
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strcpy(local_fmt + 9, fmt);
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SDL_LogMessageV(SDL_LOG_CATEGORY_VIDEO, priority, local_fmt, vl);
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free(local_fmt);
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}
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static void
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stream_on_eos(struct stream *stream, void *userdata) {
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(void) stream;
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(void) userdata;
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SDL_Event stop_event;
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stop_event.type = EVENT_STREAM_STOPPED;
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SDL_PushEvent(&stop_event);
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}
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bool
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scrcpy(const struct scrcpy_options *options) {
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static struct scrcpy scrcpy;
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struct scrcpy *s = &scrcpy;
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if (!server_init(&s->server)) {
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return false;
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}
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bool ret = false;
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bool server_started = false;
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bool file_handler_initialized = false;
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bool recorder_initialized = false;
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#ifdef HAVE_V4L2
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bool v4l2_sink_initialized = false;
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#endif
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bool stream_started = false;
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bool controller_initialized = false;
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bool controller_started = false;
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bool screen_initialized = false;
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bool record = !!options->record_filename;
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struct server_params params = {
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.serial = options->serial,
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.log_level = options->log_level,
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.crop = options->crop,
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.port_range = options->port_range,
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.max_size = options->max_size,
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.bit_rate = options->bit_rate,
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.max_fps = options->max_fps,
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.lock_video_orientation = options->lock_video_orientation,
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.control = options->control,
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.display_id = options->display_id,
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.show_touches = options->show_touches,
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.stay_awake = options->stay_awake,
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.codec_options = options->codec_options,
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.encoder_name = options->encoder_name,
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.force_adb_forward = options->force_adb_forward,
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.power_off_on_close = options->power_off_on_close,
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};
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if (!server_start(&s->server, ¶ms)) {
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goto end;
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}
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server_started = true;
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if (!sdl_init_and_configure(options->display, options->render_driver,
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options->disable_screensaver)) {
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goto end;
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}
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char device_name[DEVICE_NAME_FIELD_LENGTH];
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struct size frame_size;
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if (!server_connect_to(&s->server, device_name, &frame_size)) {
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goto end;
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}
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if (options->display && options->control) {
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if (!file_handler_init(&s->file_handler, s->server.serial,
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options->push_target)) {
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goto end;
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}
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file_handler_initialized = true;
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}
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struct decoder *dec = NULL;
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bool needs_decoder = options->display;
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#ifdef HAVE_V4L2
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needs_decoder |= !!options->v4l2_device;
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#endif
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if (needs_decoder) {
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decoder_init(&s->decoder);
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dec = &s->decoder;
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}
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struct recorder *rec = NULL;
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if (record) {
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if (!recorder_init(&s->recorder,
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options->record_filename,
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options->record_format,
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frame_size)) {
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goto end;
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}
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rec = &s->recorder;
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recorder_initialized = true;
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}
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av_log_set_callback(av_log_callback);
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const struct stream_callbacks stream_cbs = {
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.on_eos = stream_on_eos,
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};
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stream_init(&s->stream, s->server.video_socket, &stream_cbs, NULL);
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if (dec) {
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stream_add_sink(&s->stream, &dec->packet_sink);
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}
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if (rec) {
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stream_add_sink(&s->stream, &rec->packet_sink);
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}
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if (options->display) {
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if (options->control) {
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if (!controller_init(&s->controller, s->server.control_socket)) {
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goto end;
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}
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controller_initialized = true;
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if (!controller_start(&s->controller)) {
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goto end;
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}
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controller_started = true;
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}
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const char *window_title =
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options->window_title ? options->window_title : device_name;
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struct screen_params screen_params = {
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.window_title = window_title,
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.frame_size = frame_size,
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.always_on_top = options->always_on_top,
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.window_x = options->window_x,
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.window_y = options->window_y,
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.window_width = options->window_width,
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.window_height = options->window_height,
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.window_borderless = options->window_borderless,
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.rotation = options->rotation,
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.mipmaps = options->mipmaps,
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.fullscreen = options->fullscreen,
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};
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if (!screen_init(&s->screen, &screen_params)) {
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goto end;
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}
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screen_initialized = true;
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decoder_add_sink(&s->decoder, &s->screen.frame_sink);
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if (options->turn_screen_off) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
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msg.set_screen_power_mode.mode = SCREEN_POWER_MODE_OFF;
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if (!controller_push_msg(&s->controller, &msg)) {
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LOGW("Could not request 'set screen power mode'");
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}
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}
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}
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#ifdef HAVE_V4L2
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if (options->v4l2_device) {
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if (!sc_v4l2_sink_init(&s->v4l2_sink, options->v4l2_device, frame_size)) {
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goto end;
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}
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decoder_add_sink(&s->decoder, &s->v4l2_sink.frame_sink);
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v4l2_sink_initialized = true;
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}
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#endif
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// now we consumed the header values, the socket receives the video stream
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// start the stream
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if (!stream_start(&s->stream)) {
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goto end;
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}
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stream_started = true;
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input_manager_init(&s->input_manager, &s->controller, &s->screen, options);
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ret = event_loop(s, options);
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LOGD("quit...");
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// Close the window immediately on closing, because screen_destroy() may
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// only be called once the stream thread is joined (it may take time)
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screen_hide_window(&s->screen);
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end:
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// The stream is not stopped explicitly, because it will stop by itself on
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// end-of-stream
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if (controller_started) {
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controller_stop(&s->controller);
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}
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if (file_handler_initialized) {
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file_handler_stop(&s->file_handler);
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}
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if (screen_initialized) {
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screen_interrupt(&s->screen);
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}
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if (server_started) {
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// shutdown the sockets and kill the server
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server_stop(&s->server);
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}
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// now that the sockets are shutdown, the stream and controller are
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// interrupted, we can join them
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if (stream_started) {
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stream_join(&s->stream);
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}
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#ifdef HAVE_V4L2
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if (v4l2_sink_initialized) {
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sc_v4l2_sink_destroy(&s->v4l2_sink);
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}
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#endif
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// Destroy the screen only after the stream is guaranteed to be finished,
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// because otherwise the screen could receive new frames after destruction
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if (screen_initialized) {
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screen_join(&s->screen);
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screen_destroy(&s->screen);
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}
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if (controller_started) {
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controller_join(&s->controller);
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}
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if (controller_initialized) {
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controller_destroy(&s->controller);
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}
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if (recorder_initialized) {
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recorder_destroy(&s->recorder);
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}
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if (file_handler_initialized) {
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file_handler_join(&s->file_handler);
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file_handler_destroy(&s->file_handler);
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}
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server_destroy(&s->server);
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return ret;
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}
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