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https://github.com/Genymobile/scrcpy.git
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9b056f5091
SDL_net is not very suitable for scrcpy. For example, SDLNet_TCP_Accept() is non-blocking, so we have to wrap it by calling many SDL_Net-specific functions to make it blocking. But above all, SDLNet_TCP_Open() is a server socket only when no IP is provided; otherwise, it's a client socket. Therefore, it is not possible to create a server socket bound to localhost, so it accepts connections from anywhere. This is a problem for scrcpy, because on start, the application listens for nearly 1 second until it accepts the first connection, supposedly from the device. If someone on the local network manages to connect to the server socket first, then they can stream arbitrary H.264 video. This may be troublesome, for example during a public presentation ;-) Provide our own simplified API (net.h) instead, implemented for the different platforms.
31 lines
809 B
C
31 lines
809 B
C
#ifndef CONTROL_H
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#define CONTROL_H
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#include "controlevent.h"
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#include <SDL2/SDL_mutex.h>
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#include <SDL2/SDL_stdinc.h>
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#include <SDL2/SDL_thread.h>
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#include "net.h"
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struct controller {
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socket_t video_socket;
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SDL_Thread *thread;
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SDL_mutex *mutex;
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SDL_cond *event_cond;
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SDL_bool stopped;
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struct control_event_queue queue;
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};
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SDL_bool controller_init(struct controller *controller, socket_t video_socket);
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void controller_destroy(struct controller *controller);
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SDL_bool controller_start(struct controller *controller);
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void controller_stop(struct controller *controller);
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void controller_join(struct controller *controller);
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// expose simple API to hide control_event_queue
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SDL_bool controller_push_event(struct controller *controller, const struct control_event *event);
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#endif
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