Android/scrcpy
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Update code style

Browse source 
Limit source code to 80 chars, and declare functions return type and
modifiers on a separate line.

This allows to avoid very long lines, and all function names are
aligned.

(We do this on VLC, and I like it.)
This commit is contained in:
Romain Vimont 2019-03-02 20:09:56 +01:00
parent b2fe005498
commit aeda583a2c
45 changed files with 813 additions and 409 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
app/src/buffer_util.h
View file

@ -3,23 +3,27 @@
#include <SDL2/SDL_stdinc.h>
static inline void buffer_write16be(Uint8 *buf, Uint16 value) {
static inline void
buffer_write16be(Uint8 *buf, Uint16 value) {
buf[0] = value >> 8;
buf[1] = value;
}
static inline void buffer_write32be(Uint8 *buf, Uint32 value) {
static inline void
buffer_write32be(Uint8 *buf, Uint32 value) {
buf[0] = value >> 24;
buf[1] = value >> 16;
buf[2] = value >> 8;
buf[3] = value;
}
static inline Uint32 buffer_read32be(Uint8 *buf) {
static inline Uint32
buffer_read32be(Uint8 *buf) {
return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
}
static inline Uint64 buffer_read64be(Uint8 *buf) {
static inline
Uint64 buffer_read64be(Uint8 *buf) {
Uint32 msb = buffer_read32be(buf);
Uint32 lsb = buffer_read32be(&buf[4]);
return ((Uint64) msb << 32) | lsb;

32
app/src/command.c
View file

@ -10,7 +10,8 @@
static const char *adb_command;
static inline const char *get_adb_command(void) {
static inline const char *
get_adb_command(void) {
if (!adb_command) {
adb_command = getenv("ADB");
if (!adb_command)
@ -19,7 +20,8 @@ static inline const char *get_adb_command(void) {
return adb_command;
}
static void show_adb_err_msg(enum process_result err) {
static void
show_adb_err_msg(enum process_result err) {
switch (err) {
case PROCESS_ERROR_GENERIC:
LOGE("Failed to execute adb");
@ -34,7 +36,8 @@ static void show_adb_err_msg(enum process_result err) {
}
}
process_t adb_execute(const char *serial, const char *const adb_cmd[], int len) {
process_t
adb_execute(const char *serial, const char *const adb_cmd[], int len) {
const char *cmd[len + 4];
int i;
process_t process;
@ -57,7 +60,9 @@ process_t adb_execute(const char *serial, const char *const adb_cmd[], int len)
return process;
}
process_t adb_forward(const char *serial, uint16_t local_port, const char *device_socket_name) {
process_t
adb_forward(const char *serial, uint16_t local_port,
const char *device_socket_name) {
char local[4 + 5 + 1]; // tcp:PORT
char remote[108 + 14 + 1]; // localabstract:NAME
sprintf(local, "tcp:%" PRIu16, local_port);
@ -66,14 +71,17 @@ process_t adb_forward(const char *serial, uint16_t local_port, const char *devic
return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
}
process_t adb_forward_remove(const char *serial, uint16_t local_port) {
process_t
adb_forward_remove(const char *serial, uint16_t local_port) {
char local[4 + 5 + 1]; // tcp:PORT
sprintf(local, "tcp:%" PRIu16, local_port);
const char *const adb_cmd[] = {"forward", "--remove", local};
return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
}
process_t adb_reverse(const char *serial, const char *device_socket_name, uint16_t local_port) {
process_t
adb_reverse(const char *serial, const char *device_socket_name,
uint16_t local_port) {
char local[4 + 5 + 1]; // tcp:PORT
char remote[108 + 14 + 1]; // localabstract:NAME
sprintf(local, "tcp:%" PRIu16, local_port);
@ -82,14 +90,16 @@ process_t adb_reverse(const char *serial, const char *device_socket_name, uint16
return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
}
process_t adb_reverse_remove(const char *serial, const char *device_socket_name) {
process_t
adb_reverse_remove(const char *serial, const char *device_socket_name) {
char remote[108 + 14 + 1]; // localabstract:NAME
snprintf(remote, sizeof(remote), "localabstract:%s", device_socket_name);
const char *const adb_cmd[] = {"reverse", "--remove", remote};
return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
}
process_t adb_push(const char *serial, const char *local, const char *remote) {
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)
@ -115,7 +125,8 @@ process_t adb_push(const char *serial, const char *local, const char *remote) {
return proc;
}
process_t adb_install(const char *serial, const char *local) {
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)
@ -135,7 +146,8 @@ process_t adb_install(const char *serial, const char *local) {
return proc;
}
SDL_bool process_check_success(process_t proc, const char *name) {
SDL_bool
process_check_success(process_t proc, const char *name) {
if (proc == PROCESS_NONE) {
LOGE("Could not execute \"%s\"", name);
return SDL_FALSE;

46
app/src/command.h
View file

@ -6,7 +6,8 @@
#ifdef _WIN32
# include <winsock2.h> // not needed here, but must never be included AFTER windows.h
// not needed here, but winsock2.h must never be included AFTER windows.h
# include <winsock2.h>
# include <windows.h>
# define PRIexitcode "lu"
// <https://stackoverflow.com/a/44383330/1987178>
@ -38,20 +39,41 @@ enum process_result {
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);
enum process_result
cmd_execute(const char *path, const char *const argv[], process_t *process);
process_t adb_execute(const char *serial, const char *const adb_cmd[], int len);
process_t adb_forward(const char *serial, uint16_t local_port, const char *device_socket_name);
process_t adb_forward_remove(const char *serial, uint16_t local_port);
process_t adb_reverse(const char *serial, const char *device_socket_name, uint16_t local_port);
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);
process_t adb_install(const char *serial, const char *local);
SDL_bool
cmd_terminate(process_t pid);
SDL_bool
cmd_simple_wait(process_t pid, exit_code_t *exit_code);
process_t
adb_execute(const char *serial, const char *const adb_cmd[], int len);
process_t
adb_forward(const char *serial, uint16_t local_port,
const char *device_socket_name);
process_t
adb_forward_remove(const char *serial, uint16_t local_port);
process_t
adb_reverse(const char *serial, const char *device_socket_name,
uint16_t local_port);
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);
process_t
adb_install(const char *serial, const char *local);
// convenience function to wait for a successful process execution
// automatically log process errors with the provided process name
SDL_bool process_check_success(process_t process, const char *name);
SDL_bool
process_check_success(process_t process, const char *name);
#endif

3
app/src/common.h
View file

@ -19,7 +19,8 @@ struct point {
struct position {
// The video screen size may be different from the real device screen size,
// so store to which size the absolute position apply, to scale it accordingly.
// so store to which size the absolute position apply, to scale it
// accordingly.
struct size screen_size;
struct point point;
};

29
app/src/control_event.c
View file

@ -7,14 +7,16 @@
#include "lock_util.h"
#include "log.h"
static void write_position(Uint8 *buf, const struct position *position) {
static void
write_position(Uint8 *buf, const struct position *position) {
buffer_write32be(&buf[0], position->point.x);
buffer_write32be(&buf[4], position->point.y);
buffer_write16be(&buf[8], position->screen_size.width);
buffer_write16be(&buf[10], position->screen_size.height);
}
int control_event_serialize(const struct control_event *event, unsigned char *buf) {
int
control_event_serialize(const struct control_event *event, unsigned char *buf) {
buf[0] = event->type;
switch (event->type) {
case CONTROL_EVENT_TYPE_KEYCODE:
@ -52,28 +54,33 @@ int control_event_serialize(const struct control_event *event, unsigned char *bu
}
}
void control_event_destroy(struct control_event *event) {
void
control_event_destroy(struct control_event *event) {
if (event->type == CONTROL_EVENT_TYPE_TEXT) {
SDL_free(event->text_event.text);
}
}
SDL_bool control_event_queue_is_empty(const struct control_event_queue *queue) {
SDL_bool
control_event_queue_is_empty(const struct control_event_queue *queue) {
return queue->head == queue->tail;
}
SDL_bool control_event_queue_is_full(const struct control_event_queue *queue) {
SDL_bool
control_event_queue_is_full(const struct control_event_queue *queue) {
return (queue->head + 1) % CONTROL_EVENT_QUEUE_SIZE == queue->tail;
}
SDL_bool control_event_queue_init(struct control_event_queue *queue) {
SDL_bool
control_event_queue_init(struct control_event_queue *queue) {
queue->head = 0;
queue->tail = 0;
// the current implementation may not fail
return SDL_TRUE;
}
void control_event_queue_destroy(struct control_event_queue *queue) {
void
control_event_queue_destroy(struct control_event_queue *queue) {
int i = queue->tail;
while (i != queue->head) {
control_event_destroy(&queue->data[i]);
@ -81,7 +88,9 @@ void control_event_queue_destroy(struct control_event_queue *queue) {
}
}
SDL_bool control_event_queue_push(struct control_event_queue *queue, const struct control_event *event) {
SDL_bool
control_event_queue_push(struct control_event_queue *queue,
const struct control_event *event) {
if (control_event_queue_is_full(queue)) {
return SDL_FALSE;
}
@ -90,7 +99,9 @@ SDL_bool control_event_queue_push(struct control_event_queue *queue, const struc
return SDL_TRUE;
}
SDL_bool control_event_queue_take(struct control_event_queue *queue, struct control_event *event) {
SDL_bool
control_event_queue_take(struct control_event_queue *queue,
struct control_event *event) {
if (control_event_queue_is_empty(queue)) {
return SDL_FALSE;
}

29
app/src/control_event.h
View file

@ -60,18 +60,31 @@ struct control_event_queue {
};
// buf size must be at least SERIALIZED_EVENT_MAX_SIZE
int control_event_serialize(const struct control_event *event, unsigned char *buf);
int
control_event_serialize(const struct control_event *event, unsigned char *buf);
SDL_bool control_event_queue_init(struct control_event_queue *queue);
void control_event_queue_destroy(struct control_event_queue *queue);
SDL_bool
control_event_queue_init(struct control_event_queue *queue);
SDL_bool control_event_queue_is_empty(const struct control_event_queue *queue);
SDL_bool control_event_queue_is_full(const struct control_event_queue *queue);
void
control_event_queue_destroy(struct control_event_queue *queue);
SDL_bool
control_event_queue_is_empty(const struct control_event_queue *queue);
SDL_bool
control_event_queue_is_full(const struct control_event_queue *queue);
// event is copied, the queue does not use the event after the function returns
SDL_bool control_event_queue_push(struct control_event_queue *queue, const struct control_event *event);
SDL_bool control_event_queue_take(struct control_event_queue *queue, struct control_event *event);
SDL_bool
control_event_queue_push(struct control_event_queue *queue,
const struct control_event *event);
void control_event_destroy(struct control_event *event);
SDL_bool
control_event_queue_take(struct control_event_queue *queue,
struct control_event *event);
void
control_event_destroy(struct control_event *event);
#endif

35
app/src/controller.c
View file

@ -5,7 +5,8 @@
#include "lock_util.h"
#include "log.h"
SDL_bool controller_init(struct controller *controller, socket_t video_socket) {
SDL_bool
controller_init(struct controller *controller, socket_t video_socket) {
if (!control_event_queue_init(&controller->queue)) {
return SDL_FALSE;
}
@ -25,13 +26,16 @@ SDL_bool controller_init(struct controller *controller, socket_t video_socket) {
return SDL_TRUE;
}
void controller_destroy(struct controller *controller) {
void
controller_destroy(struct controller *controller) {
SDL_DestroyCond(controller->event_cond);
SDL_DestroyMutex(controller->mutex);
control_event_queue_destroy(&controller->queue);
}
SDL_bool controller_push_event(struct controller *controller, const struct control_event *event) {
SDL_bool
controller_push_event(struct controller *controller,
const struct control_event *event) {
SDL_bool res;
mutex_lock(controller->mutex);
SDL_bool was_empty = control_event_queue_is_empty(&controller->queue);
@ -43,7 +47,9 @@ SDL_bool controller_push_event(struct controller *controller, const struct contr
return res;
}
static SDL_bool process_event(struct controller *controller, const struct control_event *event) {
static SDL_bool
process_event(struct controller *controller,
const struct control_event *event) {
unsigned char serialized_event[SERIALIZED_EVENT_MAX_SIZE];
int length = control_event_serialize(event, serialized_event);
if (!length) {
@ -53,12 +59,14 @@ static SDL_bool process_event(struct controller *controller, const struct contro
return w == length;
}
static int run_controller(void *data) {
static int
run_controller(void *data) {
struct controller *controller = data;
for (;;) {
mutex_lock(controller->mutex);
while (!controller->stopped && control_event_queue_is_empty(&controller->queue)) {
while (!controller->stopped
&& control_event_queue_is_empty(&controller->queue)) {
cond_wait(controller->event_cond, controller->mutex);
}
if (controller->stopped) {
@ -67,7 +75,8 @@ static int run_controller(void *data) {
break;
}
struct control_event event;
SDL_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);
mutex_unlock(controller->mutex);
@ -81,10 +90,12 @@ static int run_controller(void *data) {
return 0;
}
SDL_bool controller_start(struct controller *controller) {
SDL_bool
controller_start(struct controller *controller) {
LOGD("Starting controller thread");
controller->thread = SDL_CreateThread(run_controller, "controller", controller);
controller->thread = SDL_CreateThread(run_controller, "controller",
controller);
if (!controller->thread) {
LOGC("Could not start controller thread");
return SDL_FALSE;
@ -93,13 +104,15 @@ SDL_bool controller_start(struct controller *controller) {
return SDL_TRUE;
}
void controller_stop(struct controller *controller) {
void
controller_stop(struct controller *controller) {
mutex_lock(controller->mutex);
controller->stopped = SDL_TRUE;
cond_signal(controller->event_cond);
mutex_unlock(controller->mutex);
}
void controller_join(struct controller *controller) {
void
controller_join(struct controller *controller) {
SDL_WaitThread(controller->thread, NULL);
}

22
app/src/controller.h
View file

@ -18,14 +18,24 @@ struct controller {
struct control_event_queue queue;
};
SDL_bool controller_init(struct controller *controller, socket_t video_socket);
void controller_destroy(struct controller *controller);
SDL_bool
controller_init(struct controller *controller, socket_t video_socket);
SDL_bool controller_start(struct controller *controller);
void controller_stop(struct controller *controller);
void controller_join(struct controller *controller);
void
controller_destroy(struct controller *controller);
SDL_bool
controller_start(struct controller *controller);
void
controller_stop(struct controller *controller);
void
controller_join(struct controller *controller);
// expose simple API to hide control_event_queue
SDL_bool controller_push_event(struct controller *controller, const struct control_event *event);
SDL_bool
controller_push_event(struct controller *controller,
const struct control_event *event);
#endif

30
app/src/convert.c
View file

@ -3,7 +3,8 @@
#define MAP(FROM, TO) case FROM: *to = TO; return SDL_TRUE
#define FAIL default: return SDL_FALSE
static SDL_bool convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
static SDL_bool
convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
switch (from) {
MAP(SDL_KEYDOWN, AKEY_EVENT_ACTION_DOWN);
MAP(SDL_KEYUP, AKEY_EVENT_ACTION_UP);
@ -11,7 +12,8 @@ static SDL_bool convert_keycode_action(SDL_EventType from, enum android_keyevent
}
}
static enum android_metastate autocomplete_metastate(enum android_metastate metastate) {
static enum android_metastate
autocomplete_metastate(enum android_metastate metastate) {
// fill dependant flags
if (metastate & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
metastate |= AMETA_SHIFT_ON;
@ -30,7 +32,8 @@ static enum android_metastate autocomplete_metastate(enum android_metastate meta
}
static enum android_metastate convert_meta_state(SDL_Keymod mod) {
static enum android_metastate
convert_meta_state(SDL_Keymod mod) {
enum android_metastate metastate = 0;
if (mod & KMOD_LSHIFT) {
metastate |= AMETA_SHIFT_LEFT_ON;
@ -70,7 +73,8 @@ 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, Uint16 mod) {
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);
@ -123,7 +127,8 @@ static SDL_bool convert_keycode(SDL_Keycode from, enum android_keycode *to, Uint
}
}
static SDL_bool convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
static SDL_bool
convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
switch (from) {
MAP(SDL_MOUSEBUTTONDOWN, AMOTION_EVENT_ACTION_DOWN);
MAP(SDL_MOUSEBUTTONUP, AMOTION_EVENT_ACTION_UP);
@ -131,7 +136,8 @@ static SDL_bool convert_mouse_action(SDL_EventType from, enum android_motioneven
}
}
static enum android_motionevent_buttons convert_mouse_buttons(Uint32 state) {
static enum android_motionevent_buttons
convert_mouse_buttons(Uint32 state) {
enum android_motionevent_buttons buttons = 0;
if (state & SDL_BUTTON_LMASK) {
buttons |= AMOTION_EVENT_BUTTON_PRIMARY;
@ -151,7 +157,8 @@ static enum android_motionevent_buttons convert_mouse_buttons(Uint32 state) {
return buttons;
}
SDL_bool input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
SDL_bool
input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
struct control_event *to) {
to->type = CONTROL_EVENT_TYPE_KEYCODE;
@ -169,7 +176,8 @@ SDL_bool input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
return SDL_TRUE;
}
SDL_bool mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
SDL_bool
mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
struct size screen_size,
struct control_event *to) {
to->type = CONTROL_EVENT_TYPE_MOUSE;
@ -186,7 +194,8 @@ SDL_bool mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
return SDL_TRUE;
}
SDL_bool mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
SDL_bool
mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
struct size screen_size,
struct control_event *to) {
to->type = CONTROL_EVENT_TYPE_MOUSE;
@ -199,7 +208,8 @@ SDL_bool mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
return SDL_TRUE;
}
SDL_bool mouse_wheel_from_sdl_to_android(const SDL_MouseWheelEvent *from,
SDL_bool
mouse_wheel_from_sdl_to_android(const SDL_MouseWheelEvent *from,
struct position position,
struct control_event *to) {
to->type = CONTROL_EVENT_TYPE_SCROLL;

17
app/src/convert.h
View file

@ -15,20 +15,25 @@ struct complete_mouse_wheel_event {
struct point position;
};
SDL_bool input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
SDL_bool
input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
struct control_event *to);
SDL_bool mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
SDL_bool
mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
struct size screen_size,
struct control_event *to);
// the video size may be different from the real device size, so we need the size
// to which the absolute position apply, to scale it accordingly
SDL_bool mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
// the video size may be different from the real device size, so we need the
// size to which the absolute position apply, to scale it accordingly
SDL_bool
mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
struct size screen_size,
struct control_event *to);
// on Android, a scroll event requires the current mouse position
SDL_bool mouse_wheel_from_sdl_to_android(const SDL_MouseWheelEvent *from,
SDL_bool
mouse_wheel_from_sdl_to_android(const SDL_MouseWheelEvent *from,
struct position position,
struct control_event *to);

21
app/src/decoder.c
View file

@ -18,8 +18,10 @@
#include "video_buffer.h"
// set the decoded frame as ready for rendering, and notify
static void push_frame(struct decoder *decoder) {
SDL_bool previous_frame_consumed = video_buffer_offer_decoded_frame(decoder->video_buffer);
static void
push_frame(struct decoder *decoder) {
SDL_bool previous_frame_consumed =
video_buffer_offer_decoded_frame(decoder->video_buffer);
if (!previous_frame_consumed) {
// the previous EVENT_NEW_FRAME will consume this frame
return;
@ -30,11 +32,13 @@ static void push_frame(struct decoder *decoder) {
SDL_PushEvent(&new_frame_event);
}
void decoder_init(struct decoder *decoder, struct video_buffer *vb) {
void
decoder_init(struct decoder *decoder, struct video_buffer *vb) {
decoder->video_buffer = vb;
}
SDL_bool decoder_open(struct decoder *decoder, AVCodec *codec) {
SDL_bool
decoder_open(struct decoder *decoder, AVCodec *codec) {
decoder->codec_ctx = avcodec_alloc_context3(codec);
if (!decoder->codec_ctx) {
LOGC("Could not allocate decoder context");
@ -50,12 +54,14 @@ SDL_bool decoder_open(struct decoder *decoder, AVCodec *codec) {
return SDL_TRUE;
}
void decoder_close(struct decoder *decoder) {
void
decoder_close(struct decoder *decoder) {
avcodec_close(decoder->codec_ctx);
avcodec_free_context(&decoder->codec_ctx);
}
SDL_bool decoder_push(struct decoder *decoder, AVPacket *packet) {
SDL_bool
decoder_push(struct decoder *decoder, AVPacket *packet) {
// the new decoding/encoding API has been introduced by:
// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
#ifdef SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
@ -90,6 +96,7 @@ SDL_bool decoder_push(struct decoder *decoder, AVPacket *packet) {
return SDL_TRUE;
}
void decoder_interrupt(struct decoder *decoder) {
void
decoder_interrupt(struct decoder *decoder) {
video_buffer_interrupt(decoder->video_buffer);
}

17
app/src/decoder.h
View file

@ -11,12 +11,19 @@ struct decoder {
AVCodecContext *codec_ctx;
};
void decoder_init(struct decoder *decoder, struct video_buffer *vb);
void
decoder_init(struct decoder *decoder, struct video_buffer *vb);
SDL_bool decoder_open(struct decoder *decoder, AVCodec *codec);
void decoder_close(struct decoder *decoder);
SDL_bool
decoder_open(struct decoder *decoder, AVCodec *codec);
SDL_bool decoder_push(struct decoder *decoder, AVPacket *packet);
void decoder_interrupt(struct decoder *decoder);
void
decoder_close(struct decoder *decoder);
SDL_bool
decoder_push(struct decoder *decoder, AVPacket *packet);
void
decoder_interrupt(struct decoder *decoder);
#endif

16
app/src/device.c
View file

@ -1,18 +1,22 @@
#include "device.h"
#include "log.h"
SDL_bool device_read_info(socket_t device_socket, char *device_name, struct size *size) {
SDL_bool
device_read_info(socket_t device_socket, char *device_name, struct size *size) {
unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
int r = net_recv_all(device_socket, buf, sizeof(buf));
if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
LOGE("Could not retrieve device information");
return SDL_FALSE;
}
buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0'; // in case the client sends garbage
// strcpy is safe here, since name contains at least DEVICE_NAME_FIELD_LENGTH bytes
// and strlen(buf) < DEVICE_NAME_FIELD_LENGTH
// in case the client sends garbage
buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0';
// strcpy is safe here, since name contains at least
// DEVICE_NAME_FIELD_LENGTH bytes and strlen(buf) < DEVICE_NAME_FIELD_LENGTH
strcpy(device_name, (char *) buf);
size->width = (buf[DEVICE_NAME_FIELD_LENGTH] << 8) | buf[DEVICE_NAME_FIELD_LENGTH + 1];
size->height = (buf[DEVICE_NAME_FIELD_LENGTH + 2] << 8) | buf[DEVICE_NAME_FIELD_LENGTH + 3];
size->width = (buf[DEVICE_NAME_FIELD_LENGTH] << 8)
| buf[DEVICE_NAME_FIELD_LENGTH + 1];
size->height = (buf[DEVICE_NAME_FIELD_LENGTH + 2] << 8)
| buf[DEVICE_NAME_FIELD_LENGTH + 3];
return SDL_TRUE;
}

3
app/src/device.h
View file

@ -10,6 +10,7 @@
#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);
SDL_bool
device_read_info(socket_t device_socket, char *name, struct size *frame_size);
#endif

60
app/src/file_handler.c
View file

@ -13,7 +13,8 @@ struct request {
const char *file;
};
static struct request *request_new(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;
@ -23,7 +24,8 @@ static struct request *request_new(file_handler_action_t action, const char *fil
return req;
}
static void request_free(struct request *req) {
static void
request_free(struct request *req) {
if (!req) {
return;
}
@ -31,21 +33,25 @@ static void request_free(struct request *req) {
SDL_free((void *) req);
}
static SDL_bool request_queue_is_empty(const struct request_queue *queue) {
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) {
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) {
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) {
static void
request_queue_destroy(struct request_queue *queue) {
int i = queue->tail;
while (i != queue->head) {
request_free(queue->reqs[i]);
@ -53,7 +59,8 @@ static void request_queue_destroy(struct request_queue *queue) {
}
}
static SDL_bool request_queue_push(struct request_queue *queue, struct request *req) {
static SDL_bool
request_queue_push(struct request_queue *queue, struct request *req) {
if (request_queue_is_full(queue)) {
return SDL_FALSE;
}
@ -62,7 +69,8 @@ static SDL_bool request_queue_push(struct request_queue *queue, struct request *
return SDL_TRUE;
}
static SDL_bool request_queue_take(struct request_queue *queue, struct request **req) {
static SDL_bool
request_queue_take(struct request_queue *queue, struct request **req) {
if (request_queue_is_empty(queue)) {
return SDL_FALSE;
}
@ -72,7 +80,8 @@ static SDL_bool request_queue_take(struct request_queue *queue, struct request *
return SDL_TRUE;
}
SDL_bool file_handler_init(struct file_handler *file_handler, const char *serial) {
SDL_bool
file_handler_init(struct file_handler *file_handler, const char *serial) {
if (!request_queue_init(&file_handler->queue)) {
return SDL_FALSE;
@ -107,22 +116,26 @@ SDL_bool file_handler_init(struct file_handler *file_handler, const char *serial
return SDL_TRUE;
}
void file_handler_destroy(struct file_handler *file_handler) {
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) {
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) {
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,
SDL_bool
file_handler_request(struct file_handler *file_handler,
file_handler_action_t action,
const char *file) {
SDL_bool res;
@ -135,7 +148,8 @@ SDL_bool file_handler_request(struct file_handler *file_handler,
file_handler->initialized = SDL_TRUE;
}
LOGI("Request to %s %s", action == ACTION_INSTALL_APK ? "install" : "push", file);
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");
@ -152,13 +166,15 @@ SDL_bool file_handler_request(struct file_handler *file_handler,
return res;
}
static int run_file_handler(void *data) {
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)) {
while (!file_handler->stopped
&& request_queue_is_empty(&file_handler->queue)) {
cond_wait(file_handler->event_cond, file_handler->mutex);
}
if (file_handler->stopped) {
@ -200,10 +216,12 @@ static int run_file_handler(void *data) {
return 0;
}
SDL_bool file_handler_start(struct file_handler *file_handler) {
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);
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;
@ -212,7 +230,8 @@ SDL_bool file_handler_start(struct file_handler *file_handler) {
return SDL_TRUE;
}
void file_handler_stop(struct file_handler *file_handler) {
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);
@ -226,6 +245,7 @@ void file_handler_stop(struct file_handler *file_handler) {
mutex_unlock(file_handler->mutex);
}
void file_handler_join(struct file_handler *file_handler) {
void
file_handler_join(struct file_handler *file_handler) {
SDL_WaitThread(file_handler->thread, NULL);
}

21
app/src/file_handler.h
View file

@ -30,14 +30,23 @@ struct file_handler {
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_init(struct file_handler *file_handler, const char *serial);
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);
void
file_handler_destroy(struct file_handler *file_handler);
SDL_bool file_handler_request(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);

24
app/src/fps_counter.c
View file

@ -4,13 +4,15 @@
#include "log.h"
void fps_counter_init(struct fps_counter *counter) {
void
fps_counter_init(struct fps_counter *counter) {
counter->started = SDL_FALSE;
// no need to initialize the other fields, they are meaningful only when
// started is true
}
void fps_counter_start(struct fps_counter *counter) {
void
fps_counter_start(struct fps_counter *counter) {
counter->started = SDL_TRUE;
counter->slice_start = SDL_GetTicks();
counter->nr_rendered = 0;
@ -19,14 +21,17 @@ void fps_counter_start(struct fps_counter *counter) {
#endif
}
void fps_counter_stop(struct fps_counter *counter) {
void
fps_counter_stop(struct fps_counter *counter) {
counter->started = SDL_FALSE;
}
static void display_fps(struct fps_counter *counter) {
static void
display_fps(struct fps_counter *counter) {
#ifdef SKIP_FRAMES
if (counter->nr_skipped) {
LOGI("%d fps (+%d frames skipped)", counter->nr_rendered, counter->nr_skipped);
LOGI("%d fps (+%d frames skipped)", counter->nr_rendered,
counter->nr_skipped);
} else {
#endif
LOGI("%d fps", counter->nr_rendered);
@ -35,7 +40,8 @@ static void display_fps(struct fps_counter *counter) {
#endif
}
static void check_expired(struct fps_counter *counter) {
static void
check_expired(struct fps_counter *counter) {
Uint32 now = SDL_GetTicks();
if (now - counter->slice_start >= 1000) {
display_fps(counter);
@ -49,13 +55,15 @@ static void check_expired(struct fps_counter *counter) {
}
}
void fps_counter_add_rendered_frame(struct fps_counter *counter) {
void
fps_counter_add_rendered_frame(struct fps_counter *counter) {
check_expired(counter);
++counter->nr_rendered;
}
#ifdef SKIP_FRAMES
void fps_counter_add_skipped_frame(struct fps_counter *counter) {
void
fps_counter_add_skipped_frame(struct fps_counter *counter) {
check_expired(counter);
++counter->nr_skipped;
}

18
app/src/fps_counter.h
View file

@ -14,13 +14,21 @@ struct fps_counter {
#endif
};
void fps_counter_init(struct fps_counter *counter);
void fps_counter_start(struct fps_counter *counter);
void fps_counter_stop(struct fps_counter *counter);
void
fps_counter_init(struct fps_counter *counter);
void
fps_counter_start(struct fps_counter *counter);
void
fps_counter_stop(struct fps_counter *counter);
void
fps_counter_add_rendered_frame(struct fps_counter *counter);
void fps_counter_add_rendered_frame(struct fps_counter *counter);
#ifdef SKIP_FRAMES
void fps_counter_add_skipped_frame(struct fps_counter *counter);
void
fps_counter_add_skipped_frame(struct fps_counter *counter);
#endif
#endif

85
app/src/input_manager.c
View file

@ -5,11 +5,13 @@
#include "lock_util.h"
#include "log.h"
// Convert window coordinates (as provided by SDL_GetMouseState() to renderer coordinates (as provided in SDL mouse events)
// Convert window coordinates (as provided by SDL_GetMouseState() to renderer
// coordinates (as provided in SDL mouse events)
//
// See my question:
// <https://stackoverflow.com/questions/49111054/how-to-get-mouse-position-on-mouse-wheel-event>
static void convert_to_renderer_coordinates(SDL_Renderer *renderer, int *x, int *y) {
static void
convert_to_renderer_coordinates(SDL_Renderer *renderer, int *x, int *y) {
SDL_Rect viewport;
float scale_x, scale_y;
SDL_RenderGetViewport(renderer, &viewport);
@ -18,7 +20,8 @@ static void convert_to_renderer_coordinates(SDL_Renderer *renderer, int *x, int
*y = (int) (*y / scale_y) - viewport.y;
}
static struct point get_mouse_point(struct screen *screen) {
static struct point
get_mouse_point(struct screen *screen) {
int x;
int y;
SDL_GetMouseState(&x, &y);
@ -32,7 +35,9 @@ static struct point get_mouse_point(struct screen *screen) {
static const int ACTION_DOWN = 1;
static const int ACTION_UP = 1 << 1;
static void send_keycode(struct controller *controller, enum android_keycode keycode, int actions, const char *name) {
static void
send_keycode(struct controller *controller, enum android_keycode keycode,
int actions, const char *name) {
// send DOWN event
struct control_event control_event;
control_event.type = CONTROL_EVENT_TYPE_KEYCODE;
@ -55,66 +60,80 @@ static void send_keycode(struct controller *controller, enum android_keycode key
}
}
static inline void action_home(struct controller *controller, int actions) {
static inline void
action_home(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_HOME, actions, "HOME");
}
static inline void action_back(struct controller *controller, int actions) {
static inline void
action_back(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_BACK, actions, "BACK");
}
static inline void action_app_switch(struct controller *controller, int actions) {
static inline void
action_app_switch(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_APP_SWITCH, actions, "APP_SWITCH");
}
static inline void action_power(struct controller *controller, int actions) {
static inline void
action_power(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_POWER, actions, "POWER");
}
static inline void action_volume_up(struct controller *controller, int actions) {
static inline void
action_volume_up(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_VOLUME_UP, actions, "VOLUME_UP");
}
static inline void action_volume_down(struct controller *controller, int actions) {
static inline void
action_volume_down(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_VOLUME_DOWN, actions, "VOLUME_DOWN");
}
static inline void action_menu(struct controller *controller, int actions) {
static inline void
action_menu(struct controller *controller, int actions) {
send_keycode(controller, AKEYCODE_MENU, actions, "MENU");
}
// turn the screen on if it was off, press BACK otherwise
static void press_back_or_turn_screen_on(struct controller *controller) {
static void
press_back_or_turn_screen_on(struct controller *controller) {
struct control_event control_event;
control_event.type = CONTROL_EVENT_TYPE_COMMAND;
control_event.command_event.action = CONTROL_EVENT_COMMAND_BACK_OR_SCREEN_ON;
control_event.command_event.action =
CONTROL_EVENT_COMMAND_BACK_OR_SCREEN_ON;
if (!controller_push_event(controller, &control_event)) {
LOGW("Cannot turn screen on");
}
}
static void expand_notification_panel(struct controller *controller) {
static void
expand_notification_panel(struct controller *controller) {
struct control_event control_event;
control_event.type = CONTROL_EVENT_TYPE_COMMAND;
control_event.command_event.action = CONTROL_EVENT_COMMAND_EXPAND_NOTIFICATION_PANEL;
control_event.command_event.action =
CONTROL_EVENT_COMMAND_EXPAND_NOTIFICATION_PANEL;
if (!controller_push_event(controller, &control_event)) {
LOGW("Cannot expand notification panel");
}
}
static void collapse_notification_panel(struct controller *controller) {
static void
collapse_notification_panel(struct controller *controller) {
struct control_event control_event;
control_event.type = CONTROL_EVENT_TYPE_COMMAND;
control_event.command_event.action = CONTROL_EVENT_COMMAND_COLLAPSE_NOTIFICATION_PANEL;
control_event.command_event.action =
CONTROL_EVENT_COMMAND_COLLAPSE_NOTIFICATION_PANEL;
if (!controller_push_event(controller, &control_event)) {
LOGW("Cannot collapse notification panel");
}
}
static void switch_fps_counter_state(struct video_buffer *vb) {
static void
switch_fps_counter_state(struct video_buffer *vb) {
mutex_lock(vb->mutex);
if (vb->fps_counter.started) {
LOGI("FPS counter stopped");
@ -126,7 +145,8 @@ static void switch_fps_counter_state(struct video_buffer *vb) {
mutex_unlock(vb->mutex);
}
static void clipboard_paste(struct controller *controller) {
static void
clipboard_paste(struct controller *controller) {
char *text = SDL_GetClipboardText();
if (!text) {
LOGW("Cannot get clipboard text: %s", SDL_GetError());
@ -147,7 +167,8 @@ static void clipboard_paste(struct controller *controller) {
}
}
void input_manager_process_text_input(struct input_manager *input_manager,
void
input_manager_process_text_input(struct input_manager *input_manager,
const SDL_TextInputEvent *event) {
char c = event->text[0];
if (isalpha(c) || c == ' ') {
@ -168,7 +189,8 @@ void input_manager_process_text_input(struct input_manager *input_manager,
}
}
void input_manager_process_key(struct input_manager *input_manager,
void
input_manager_process_key(struct input_manager *input_manager,
const SDL_KeyboardEvent *event) {
SDL_bool ctrl = event->keysym.mod & (KMOD_LCTRL | KMOD_RCTRL);
SDL_bool alt = event->keysym.mod & (KMOD_LALT | KMOD_RALT);
@ -285,28 +307,32 @@ void input_manager_process_key(struct input_manager *input_manager,
}
}
void input_manager_process_mouse_motion(struct input_manager *input_manager,
void
input_manager_process_mouse_motion(struct input_manager *input_manager,
const SDL_MouseMotionEvent *event) {
if (!event->state) {
// do not send motion events when no button is pressed
return;
}
struct control_event control_event;
if (mouse_motion_from_sdl_to_android(event, input_manager->screen->frame_size, &control_event)) {
if (mouse_motion_from_sdl_to_android(event,
input_manager->screen->frame_size,
&control_event)) {
if (!controller_push_event(input_manager->controller, &control_event)) {
LOGW("Cannot send mouse motion event");
}
}
}
static SDL_bool is_outside_device_screen(struct input_manager *input_manager,
int x, int y)
static SDL_bool
is_outside_device_screen(struct input_manager *input_manager, int x, int y)
{
return x < 0 || x >= input_manager->screen->frame_size.width ||
y < 0 || y >= input_manager->screen->frame_size.height;
}
void input_manager_process_mouse_button(struct input_manager *input_manager,
void
input_manager_process_mouse_button(struct input_manager *input_manager,
const SDL_MouseButtonEvent *event) {
if (event->type == SDL_MOUSEBUTTONDOWN) {
if (event->button == SDL_BUTTON_RIGHT) {
@ -331,14 +357,17 @@ void input_manager_process_mouse_button(struct input_manager *input_manager,
}
struct control_event control_event;
if (mouse_button_from_sdl_to_android(event, input_manager->screen->frame_size, &control_event)) {
if (mouse_button_from_sdl_to_android(event,
input_manager->screen->frame_size,
&control_event)) {
if (!controller_push_event(input_manager->controller, &control_event)) {
LOGW("Cannot send mouse button event");
}
}
}
void input_manager_process_mouse_wheel(struct input_manager *input_manager,
void
input_manager_process_mouse_wheel(struct input_manager *input_manager,
const SDL_MouseWheelEvent *event) {
struct position position = {
.screen_size = input_manager->screen->frame_size,

19
app/src/input_manager.h
View file

@ -13,15 +13,24 @@ struct input_manager {
struct screen *screen;
};
void input_manager_process_text_input(struct input_manager *input_manager,
void
input_manager_process_text_input(struct input_manager *input_manager,
const SDL_TextInputEvent *event);
void input_manager_process_key(struct input_manager *input_manager,
void
input_manager_process_key(struct input_manager *input_manager,
const SDL_KeyboardEvent *event);
void input_manager_process_mouse_motion(struct input_manager *input_manager,
void
input_manager_process_mouse_motion(struct input_manager *input_manager,
const SDL_MouseMotionEvent *event);
void input_manager_process_mouse_button(struct input_manager *input_manager,
void
input_manager_process_mouse_button(struct input_manager *input_manager,
const SDL_MouseButtonEvent *event);
void input_manager_process_mouse_wheel(struct input_manager *input_manager,
void
input_manager_process_mouse_wheel(struct input_manager *input_manager,
const SDL_MouseWheelEvent *event);
#endif

12
app/src/lock_util.c
View file

@ -4,28 +4,32 @@
#include "log.h"
void mutex_lock(SDL_mutex *mutex) {
void
mutex_lock(SDL_mutex *mutex) {
if (SDL_LockMutex(mutex)) {
LOGC("Could not lock mutex");
abort();
}
}
void mutex_unlock(SDL_mutex *mutex) {
void
mutex_unlock(SDL_mutex *mutex) {
if (SDL_UnlockMutex(mutex)) {
LOGC("Could not unlock mutex");
abort();
}
}
void cond_wait(SDL_cond *cond, SDL_mutex *mutex) {
void
cond_wait(SDL_cond *cond, SDL_mutex *mutex) {
if (SDL_CondWait(cond, mutex)) {
LOGC("Could not wait on condition");
abort();
}
}
void cond_signal(SDL_cond *cond) {
void
cond_signal(SDL_cond *cond) {
if (SDL_CondSignal(cond)) {
LOGC("Could not signal a condition");
abort();

15
app/src/lock_util.h
View file

@ -5,9 +5,16 @@
typedef struct SDL_mutex SDL_mutex;
typedef struct SDL_cond SDL_cond;
void mutex_lock(SDL_mutex *mutex);
void mutex_unlock(SDL_mutex *mutex);
void cond_wait(SDL_cond *cond, SDL_mutex *mutex);
void cond_signal(SDL_cond *cond);
void
mutex_lock(SDL_mutex *mutex);
void
mutex_unlock(SDL_mutex *mutex);
void
cond_wait(SDL_cond *cond, SDL_mutex *mutex);
void
cond_signal(SDL_cond *cond);
#endif

36
app/src/main.c
View file

@ -145,17 +145,26 @@ static void usage(const char *arg0) {
DEFAULT_LOCAL_PORT);
}
static void print_version(void) {
static void
print_version(void) {
fprintf(stderr, "scrcpy %s\n\n", SCRCPY_VERSION);
fprintf(stderr, "dependencies:\n");
fprintf(stderr, " - SDL %d.%d.%d\n", SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL);
fprintf(stderr, " - libavcodec %d.%d.%d\n", LIBAVCODEC_VERSION_MAJOR, LIBAVCODEC_VERSION_MINOR, LIBAVCODEC_VERSION_MICRO);
fprintf(stderr, " - libavformat %d.%d.%d\n", LIBAVFORMAT_VERSION_MAJOR, LIBAVFORMAT_VERSION_MINOR, LIBAVFORMAT_VERSION_MICRO);
fprintf(stderr, " - libavutil %d.%d.%d\n", LIBAVUTIL_VERSION_MAJOR, LIBAVUTIL_VERSION_MINOR, LIBAVUTIL_VERSION_MICRO);
fprintf(stderr, " - SDL %d.%d.%d\n", SDL_MAJOR_VERSION, SDL_MINOR_VERSION,
SDL_PATCHLEVEL);
fprintf(stderr, " - libavcodec %d.%d.%d\n", LIBAVCODEC_VERSION_MAJOR,
LIBAVCODEC_VERSION_MINOR,
LIBAVCODEC_VERSION_MICRO);
fprintf(stderr, " - libavformat %d.%d.%d\n", LIBAVFORMAT_VERSION_MAJOR,
LIBAVFORMAT_VERSION_MINOR,
LIBAVFORMAT_VERSION_MICRO);
fprintf(stderr, " - libavutil %d.%d.%d\n", LIBAVUTIL_VERSION_MAJOR,
LIBAVUTIL_VERSION_MINOR,
LIBAVUTIL_VERSION_MICRO);
}
static SDL_bool parse_bit_rate(char *optarg, Uint32 *bit_rate) {
static SDL_bool
parse_bit_rate(char *optarg, Uint32 *bit_rate) {
char *endptr;
if (*optarg == '\0') {
LOGE("Bit-rate parameter is empty");
@ -186,7 +195,8 @@ static SDL_bool parse_bit_rate(char *optarg, Uint32 *bit_rate) {
return SDL_TRUE;
}
static SDL_bool parse_max_size(char *optarg, Uint16 *max_size) {
static SDL_bool
parse_max_size(char *optarg, Uint16 *max_size) {
char *endptr;
if (*optarg == '\0') {
LOGE("Max size parameter is empty");
@ -206,7 +216,8 @@ static SDL_bool parse_max_size(char *optarg, Uint16 *max_size) {
return SDL_TRUE;
}
static SDL_bool parse_port(char *optarg, Uint16 *port) {
static SDL_bool
parse_port(char *optarg, Uint16 *port) {
char *endptr;
if (*optarg == '\0') {
LOGE("Invalid port parameter is empty");
@ -256,7 +267,8 @@ guess_record_format(const char *filename) {
return 0;
}
static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
static SDL_bool
parse_args(struct args *args, int argc, char *argv[]) {
static const struct option long_options[] = {
{"always-on-top", no_argument, NULL, 'T'},
{"bit-rate", required_argument, NULL, 'b'},
@ -274,7 +286,8 @@ 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:fF:hm:np:r:s:tTv", long_options, NULL)) != -1) {
while ((c = getopt_long(argc, argv, "b:c:fF:hm:np:r:s:tTv", long_options,
NULL)) != -1) {
switch (c) {
case 'b':
if (!parse_bit_rate(optarg, &args->bit_rate)) {
@ -362,7 +375,8 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
return SDL_TRUE;
}
int main(int argc, char *argv[]) {
int
main(int argc, char *argv[]) {
#ifdef __WINDOWS__
// disable buffering, we want logs immediately
// even line buffering (setvbuf() with mode _IOLBF) is not sufficient

27
app/src/net.c
View file

@ -18,7 +18,8 @@
typedef struct in_addr IN_ADDR;
#endif
socket_t net_connect(Uint32 addr, Uint16 port) {
socket_t
net_connect(Uint32 addr, Uint16 port) {
socket_t sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock == INVALID_SOCKET) {
perror("socket");
@ -38,7 +39,8 @@ socket_t net_connect(Uint32 addr, Uint16 port) {
return sock;
}
socket_t net_listen(Uint32 addr, Uint16 port, int backlog) {
socket_t
net_listen(Uint32 addr, Uint16 port, int backlog) {
socket_t sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock == INVALID_SOCKET) {
perror("socket");
@ -46,7 +48,8 @@ socket_t net_listen(Uint32 addr, Uint16 port, int backlog) {
}
int reuse = 1;
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuse, sizeof(reuse)) == -1) {
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuse,
sizeof(reuse)) == -1) {
perror("setsockopt(SO_REUSEADDR)");
}
@ -68,25 +71,30 @@ socket_t net_listen(Uint32 addr, Uint16 port, int backlog) {
return sock;
}
socket_t net_accept(socket_t server_socket) {
socket_t
net_accept(socket_t server_socket) {
SOCKADDR_IN csin;
socklen_t sinsize = sizeof(csin);
return accept(server_socket, (SOCKADDR *) &csin, &sinsize);
}
ssize_t net_recv(socket_t socket, void *buf, size_t len) {
ssize_t
net_recv(socket_t socket, void *buf, size_t len) {
return recv(socket, buf, len, 0);
}
ssize_t net_recv_all(socket_t socket, void *buf, size_t len) {
ssize_t
net_recv_all(socket_t socket, void *buf, size_t len) {
return recv(socket, buf, len, MSG_WAITALL);
}
ssize_t net_send(socket_t socket, const void *buf, size_t len) {
ssize_t
net_send(socket_t socket, const void *buf, size_t len) {
return send(socket, buf, len, 0);
}
ssize_t net_send_all(socket_t socket, const void *buf, size_t len) {
ssize_t
net_send_all(socket_t socket, const void *buf, size_t len) {
ssize_t w = 0;
while (len > 0) {
w = send(socket, buf, len, 0);
@ -99,6 +107,7 @@ ssize_t net_send_all(socket_t socket, const void *buf, size_t len) {
return w;
}
SDL_bool net_shutdown(socket_t socket, int how) {
SDL_bool
net_shutdown(socket_t socket, int how) {
return !shutdown(socket, how);
}

41
app/src/net.h
View file

@ -16,20 +16,39 @@
typedef int socket_t;
#endif
SDL_bool net_init(void);
void net_cleanup(void);
SDL_bool
net_init(void);
socket_t net_connect(Uint32 addr, Uint16 port);
socket_t net_listen(Uint32 addr, Uint16 port, int backlog);
socket_t net_accept(socket_t server_socket);
void
net_cleanup(void);
socket_t
net_connect(Uint32 addr, Uint16 port);
socket_t
net_listen(Uint32 addr, Uint16 port, int backlog);
socket_t
net_accept(socket_t server_socket);
// the _all versions wait/retry until len bytes have been written/read
ssize_t net_recv(socket_t socket, void *buf, size_t len);
ssize_t net_recv_all(socket_t socket, void *buf, size_t len);
ssize_t net_send(socket_t socket, const void *buf, size_t len);
ssize_t net_send_all(socket_t socket, const void *buf, size_t len);
ssize_t
net_recv(socket_t socket, void *buf, size_t len);
ssize_t
net_recv_all(socket_t socket, void *buf, size_t len);
ssize_t
net_send(socket_t socket, const void *buf, size_t len);
ssize_t
net_send_all(socket_t socket, const void *buf, size_t len);
// how is SHUT_RD (read), SHUT_WR (write) or SHUT_RDWR (both)
SDL_bool net_shutdown(socket_t socket, int how);
SDL_bool net_close(socket_t socket);
SDL_bool
net_shutdown(socket_t socket, int how);
SDL_bool
net_close(socket_t socket);
#endif

18
app/src/recorder.c
View file

@ -9,7 +9,8 @@
static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
static const AVOutputFormat *find_muxer(const char *name) {
static const AVOutputFormat *
find_muxer(const char *name) {
#ifdef SCRCPY_LAVF_HAS_NEW_MUXER_ITERATOR_API
void *opaque = NULL;
#endif
@ -25,7 +26,8 @@ static const AVOutputFormat *find_muxer(const char *name) {
return oformat;
}
SDL_bool recorder_init(struct recorder *recorder,
SDL_bool
recorder_init(struct recorder *recorder,
const char *filename,
enum recorder_format format,
struct size declared_frame_size) {
@ -42,7 +44,8 @@ SDL_bool recorder_init(struct recorder *recorder,
return SDL_TRUE;
}
void recorder_destroy(struct recorder *recorder) {
void
recorder_destroy(struct recorder *recorder) {
SDL_free(recorder->filename);
}
@ -55,7 +58,8 @@ recorder_get_format_name(enum recorder_format format) {
}
}
SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec) {
SDL_bool
recorder_open(struct recorder *recorder, AVCodec *input_codec) {
const char *format_name = recorder_get_format_name(recorder->format);
SDL_assert(format_name);
const AVOutputFormat *format = find_muxer(format_name);
@ -110,7 +114,8 @@ SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec) {
return SDL_TRUE;
}
void recorder_close(struct recorder *recorder) {
void
recorder_close(struct recorder *recorder) {
int ret = av_write_trailer(recorder->ctx);
if (ret < 0) {
LOGE("Failed to write trailer to %s", recorder->filename);
@ -161,7 +166,8 @@ recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
}
SDL_bool recorder_write(struct recorder *recorder, AVPacket *packet) {
SDL_bool
recorder_write(struct recorder *recorder, AVPacket *packet) {
if (!recorder->header_written) {
SDL_bool ok = recorder_write_header(recorder, packet);
if (!ok) {

20
app/src/recorder.h
View file

@ -19,16 +19,20 @@ struct recorder {
SDL_bool header_written;
};
SDL_bool recorder_init(struct recorder *recoder,
const char *filename,
enum recorder_format format,
struct size declared_frame_size);
SDL_bool
recorder_init(struct recorder *recoder, const char *filename,
enum recorder_format format, struct size declared_frame_size);
void recorder_destroy(struct recorder *recorder);
void
recorder_destroy(struct recorder *recorder);
SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec);
void recorder_close(struct recorder *recorder);
SDL_bool
recorder_open(struct recorder *recorder, AVCodec *input_codec);
SDL_bool recorder_write(struct recorder *recorder, AVPacket *packet);
void
recorder_close(struct recorder *recorder);
SDL_bool
recorder_write(struct recorder *recorder, AVPacket *packet);
#endif

45
app/src/scrcpy.c
View file

@ -51,8 +51,10 @@ static struct input_manager input_manager = {
//
// <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
// <https://stackoverflow.com/a/40693139/1987178>
static int event_watcher(void *data, SDL_Event *event) {
if (event->type == SDL_WINDOWEVENT && event->window.event == SDL_WINDOWEVENT_RESIZED) {
static int
event_watcher(void *data, SDL_Event *event) {
if (event->type == SDL_WINDOWEVENT
&& event->window.event == SDL_WINDOWEVENT_RESIZED) {
// called from another thread, not very safe, but it's a workaround!
screen_render(&screen);
}
@ -60,12 +62,14 @@ static int event_watcher(void *data, SDL_Event *event) {
}
#endif
static SDL_bool is_apk(const char *file) {
static SDL_bool
is_apk(const char *file) {
const char *ext = strrchr(file, '.');
return ext && !strcmp(ext, ".apk");
}
static SDL_bool event_loop(void) {
static SDL_bool
event_loop(void) {
#ifdef CONTINUOUS_RESIZING_WORKAROUND
SDL_AddEventWatch(event_watcher, NULL);
#endif
@ -104,14 +108,17 @@ static SDL_bool event_loop(void) {
input_manager_process_key(&input_manager, &event.key);
break;
case SDL_MOUSEMOTION:
input_manager_process_mouse_motion(&input_manager, &event.motion);
input_manager_process_mouse_motion(&input_manager,
&event.motion);
break;
case SDL_MOUSEWHEEL:
input_manager_process_mouse_wheel(&input_manager, &event.wheel);
input_manager_process_mouse_wheel(&input_manager,
&event.wheel);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
input_manager_process_mouse_button(&input_manager, &event.button);
input_manager_process_mouse_button(&input_manager,
&event.button);
break;
case SDL_DROPFILE: {
file_handler_action_t action;
@ -128,7 +135,8 @@ static SDL_bool event_loop(void) {
return SDL_FALSE;
}
static process_t set_show_touches_enabled(const char *serial, SDL_bool enabled) {
static process_t
set_show_touches_enabled(const char *serial, SDL_bool enabled) {
const char *value = enabled ? "1" : "0";
const char *const adb_cmd[] = {
"shell", "settings", "put", "system", "show_touches", value
@ -136,12 +144,14 @@ static process_t set_show_touches_enabled(const char *serial, SDL_bool enabled)
return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
}
static void wait_show_touches(process_t process) {
static void
wait_show_touches(process_t process) {
// reap the process, ignore the result
process_check_success(process, "show_touches");
}
static SDL_LogPriority sdl_priority_from_av_level(int level) {
static SDL_LogPriority
sdl_priority_from_av_level(int level) {
switch (level) {
case AV_LOG_PANIC:
case AV_LOG_FATAL:
@ -175,7 +185,8 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
SDL_free(local_fmt);
}
SDL_bool scrcpy(const struct scrcpy_options *options) {
SDL_bool
scrcpy(const struct scrcpy_options *options) {
SDL_bool record = !!options->record_filename;
if (!server_start(&server, options->serial, options->port,
options->max_size, options->bit_rate, options->crop,
@ -208,9 +219,9 @@ SDL_bool scrcpy(const struct scrcpy_options *options) {
char device_name[DEVICE_NAME_FIELD_LENGTH];
struct size frame_size;
// screenrecord does not send frames when the screen content does not change
// therefore, we transmit the screen size before the video stream, to be able
// to init the window immediately
// screenrecord does not send frames when the screen content does not
// change therefore, we transmit the screen size before the video stream,
// to be able to init the window immediately
if (!device_read_info(device_socket, device_name, &frame_size)) {
server_stop(&server);
ret = SDL_FALSE;
@ -273,7 +284,8 @@ SDL_bool scrcpy(const struct scrcpy_options *options) {
goto finally_destroy_controller;
}
if (!screen_init_rendering(&screen, device_name, frame_size, options->always_on_top)) {
if (!screen_init_rendering(&screen, device_name, frame_size,
options->always_on_top)) {
ret = SDL_FALSE;
goto finally_stop_and_join_controller;
}
@ -328,7 +340,8 @@ finally_destroy_server:
wait_show_touches(proc_show_touches);
}
LOGI("Disable show_touches");
proc_show_touches = set_show_touches_enabled(options->serial, SDL_FALSE);
proc_show_touches = set_show_touches_enabled(options->serial,
SDL_FALSE);
wait_show_touches(proc_show_touches);
}

3
app/src/scrcpy.h
View file

@ -18,6 +18,7 @@ struct scrcpy_options {
SDL_bool no_window;
};
SDL_bool scrcpy(const struct scrcpy_options *options);
SDL_bool
scrcpy(const struct scrcpy_options *options);
#endif

112
app/src/screen.c
View file

@ -12,7 +12,8 @@
#define DISPLAY_MARGINS 96
SDL_bool sdl_init_and_configure(void) {
SDL_bool
sdl_init_and_configure(void) {
if (SDL_Init(SDL_INIT_VIDEO)) {
LOGC("Could not initialize SDL: %s", SDL_GetError());
return SDL_FALSE;
@ -39,7 +40,8 @@ SDL_bool sdl_init_and_configure(void) {
}
// get the window size in a struct size
static struct size get_native_window_size(SDL_Window *window) {
static struct size
get_native_window_size(SDL_Window *window) {
int width;
int height;
SDL_GetWindowSize(window, &width, &height);
@ -51,7 +53,8 @@ static struct size get_native_window_size(SDL_Window *window) {
}
// get the windowed window size
static struct size get_window_size(const struct screen *screen) {
static struct size
get_window_size(const struct screen *screen) {
if (screen->fullscreen) {
return screen->windowed_window_size;
}
@ -59,7 +62,8 @@ static struct size get_window_size(const struct screen *screen) {
}
// set the window size to be applied when fullscreen is disabled
static void set_window_size(struct screen *screen, struct size new_size) {
static void
set_window_size(struct screen *screen, struct size new_size) {
// setting the window size during fullscreen is implementation defined,
// so apply the resize only after fullscreen is disabled
if (screen->fullscreen) {
@ -71,7 +75,8 @@ static void set_window_size(struct screen *screen, struct size new_size) {
}
// get the preferred display bounds (i.e. the screen bounds with some margins)
static SDL_bool get_preferred_display_bounds(struct size *bounds) {
static SDL_bool
get_preferred_display_bounds(struct size *bounds) {
SDL_Rect rect;
#ifdef SCRCPY_SDL_HAS_GET_DISPLAY_USABLE_BOUNDS
# define GET_DISPLAY_BOUNDS(i, r) SDL_GetDisplayUsableBounds((i), (r))
@ -89,10 +94,12 @@ static SDL_bool get_preferred_display_bounds(struct size *bounds) {
}
// return the optimal size of the window, with the following constraints:
// - it attempts to keep at least one dimension of the current_size (i.e. it crops the black borders)
// - it attempts to keep at least one dimension of the current_size (i.e. it
// crops the black borders)
// - it keeps the aspect ratio
// - it scales down to make it fit in the display_size
static struct size get_optimal_size(struct size current_size, struct size frame_size) {
static struct size
get_optimal_size(struct size current_size, struct size frame_size) {
if (frame_size.width == 0 || frame_size.height == 0) {
// avoid division by 0
return current_size;
@ -117,7 +124,8 @@ static struct size get_optimal_size(struct size current_size, struct size frame_
// remove black borders on top and bottom
h = frame_size.height * w / frame_size.width;
} else {
// remove black borders on left and right (or none at all if it already fits)
// remove black borders on left and right (or none at all if it already
// fits)
w = frame_size.width * h / frame_size.height;
}
@ -127,29 +135,33 @@ static struct size get_optimal_size(struct size current_size, struct size frame_
}
// same as get_optimal_size(), but read the current size from the window
static inline struct size get_optimal_window_size(const struct screen *screen, struct size frame_size) {
static inline struct size
get_optimal_window_size(const struct screen *screen, struct size frame_size) {
struct size current_size = get_window_size(screen);
return get_optimal_size(current_size, frame_size);
}
// initially, there is no current size, so use the frame size as current size
static inline struct size get_initial_optimal_size(struct size frame_size) {
static inline struct size
get_initial_optimal_size(struct size frame_size) {
return get_optimal_size(frame_size, frame_size);
}
void screen_init(struct screen *screen) {
void
screen_init(struct screen *screen) {
*screen = (struct screen) SCREEN_INITIALIZER;
}
static inline SDL_Texture *create_texture(SDL_Renderer *renderer, struct size frame_size) {
return SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING,
static inline SDL_Texture *
create_texture(SDL_Renderer *renderer, struct size frame_size) {
return SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
SDL_TEXTUREACCESS_STREAMING,
frame_size.width, frame_size.height);
}
SDL_bool screen_init_rendering(struct screen *screen,
const char *device_name,
struct size frame_size,
SDL_bool always_on_top) {
SDL_bool
screen_init_rendering(struct screen *screen, const char *device_name,
struct size frame_size, SDL_bool always_on_top) {
screen->frame_size = frame_size;
struct size window_size = get_initial_optimal_size(frame_size);
@ -166,21 +178,25 @@ SDL_bool screen_init_rendering(struct screen *screen,
#endif
}
screen->window = SDL_CreateWindow(device_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
window_size.width, window_size.height, window_flags);
screen->window = SDL_CreateWindow(device_name, SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
window_size.width, window_size.height,
window_flags);
if (!screen->window) {
LOGC("Could not create window: %s", SDL_GetError());
return SDL_FALSE;
}
screen->renderer = SDL_CreateRenderer(screen->window, -1, SDL_RENDERER_ACCELERATED);
screen->renderer = SDL_CreateRenderer(screen->window, -1,
SDL_RENDERER_ACCELERATED);
if (!screen->renderer) {
LOGC("Could not create renderer: %s", SDL_GetError());
screen_destroy(screen);
return SDL_FALSE;
}
if (SDL_RenderSetLogicalSize(screen->renderer, frame_size.width, frame_size.height)) {
if (SDL_RenderSetLogicalSize(screen->renderer, frame_size.width,
frame_size.height)) {
LOGE("Could not set renderer logical size: %s", SDL_GetError());
screen_destroy(screen);
return SDL_FALSE;
@ -195,7 +211,8 @@ SDL_bool screen_init_rendering(struct screen *screen,
SDL_SetWindowIcon(screen->window, icon);
SDL_FreeSurface(icon);
LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width, frame_size.height);
LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
frame_size.height);
screen->texture = create_texture(screen->renderer, frame_size);
if (!screen->texture) {
LOGC("Could not create texture: %s", SDL_GetError());
@ -206,11 +223,13 @@ SDL_bool screen_init_rendering(struct screen *screen,
return SDL_TRUE;
}
void screen_show_window(struct screen *screen) {
void
screen_show_window(struct screen *screen) {
SDL_ShowWindow(screen->window);
}
void screen_destroy(struct screen *screen) {
void
screen_destroy(struct screen *screen) {
if (screen->texture) {
SDL_DestroyTexture(screen->texture);
}
@ -223,9 +242,12 @@ void screen_destroy(struct screen *screen) {
}
// recreate the texture and resize the window if the frame size has changed
static SDL_bool prepare_for_frame(struct screen *screen, struct size new_frame_size) {
if (screen->frame_size.width != new_frame_size.width || screen->frame_size.height != new_frame_size.height) {
if (SDL_RenderSetLogicalSize(screen->renderer, new_frame_size.width, new_frame_size.height)) {
static SDL_bool
prepare_for_frame(struct screen *screen, struct size new_frame_size) {
if (screen->frame_size.width != new_frame_size.width
|| screen->frame_size.height != new_frame_size.height) {
if (SDL_RenderSetLogicalSize(screen->renderer, new_frame_size.width,
new_frame_size.height)) {
LOGE("Could not set renderer logical size: %s", SDL_GetError());
return SDL_FALSE;
}
@ -235,8 +257,10 @@ static SDL_bool prepare_for_frame(struct screen *screen, struct size new_frame_s
struct size current_size = get_window_size(screen);
struct size target_size = {
(Uint32) current_size.width * new_frame_size.width / screen->frame_size.width,
(Uint32) current_size.height * new_frame_size.height / screen->frame_size.height,
(Uint32) current_size.width * new_frame_size.width
/ screen->frame_size.width,
(Uint32) current_size.height * new_frame_size.height
/ screen->frame_size.height,
};
target_size = get_optimal_size(target_size, new_frame_size);
set_window_size(screen, target_size);
@ -256,14 +280,16 @@ static SDL_bool prepare_for_frame(struct screen *screen, struct size new_frame_s
}
// write the frame into the texture
static void update_texture(struct screen *screen, const AVFrame *frame) {
static void
update_texture(struct screen *screen, const AVFrame *frame) {
SDL_UpdateYUVTexture(screen->texture, NULL,
frame->data[0], frame->linesize[0],
frame->data[1], frame->linesize[1],
frame->data[2], frame->linesize[2]);
}
SDL_bool screen_update_frame(struct screen *screen, struct video_buffer *vb) {
SDL_bool
screen_update_frame(struct screen *screen, struct video_buffer *vb) {
mutex_lock(vb->mutex);
const AVFrame *frame = video_buffer_consume_rendered_frame(vb);
struct size new_frame_size = {frame->width, frame->height};
@ -278,13 +304,15 @@ SDL_bool screen_update_frame(struct screen *screen, struct video_buffer *vb) {
return SDL_TRUE;
}
void screen_render(struct screen *screen) {
void
screen_render(struct screen *screen) {
SDL_RenderClear(screen->renderer);
SDL_RenderCopy(screen->renderer, screen->texture, NULL, NULL);
SDL_RenderPresent(screen->renderer);
}
void screen_switch_fullscreen(struct screen *screen) {
void
screen_switch_fullscreen(struct screen *screen) {
if (!screen->fullscreen) {
// going to fullscreen, store the current windowed window size
screen->windowed_window_size = get_native_window_size(screen->window);
@ -298,24 +326,30 @@ void screen_switch_fullscreen(struct screen *screen) {
screen->fullscreen = !screen->fullscreen;
if (!screen->fullscreen) {
// fullscreen disabled, restore expected windowed window size
SDL_SetWindowSize(screen->window, screen->windowed_window_size.width, screen->windowed_window_size.height);
SDL_SetWindowSize(screen->window, screen->windowed_window_size.width,
screen->windowed_window_size.height);
}
LOGD("Switched to %s mode", screen->fullscreen ? "fullscreen" : "windowed");
screen_render(screen);
}
void screen_resize_to_fit(struct screen *screen) {
void
screen_resize_to_fit(struct screen *screen) {
if (!screen->fullscreen) {
struct size optimal_size = get_optimal_window_size(screen, screen->frame_size);
SDL_SetWindowSize(screen->window, optimal_size.width, optimal_size.height);
struct size optimal_size = get_optimal_window_size(screen,
screen->frame_size);
SDL_SetWindowSize(screen->window, optimal_size.width,
optimal_size.height);
LOGD("Resized to optimal size");
}
}
void screen_resize_to_pixel_perfect(struct screen *screen) {
void
screen_resize_to_pixel_perfect(struct screen *screen) {
if (!screen->fullscreen) {
SDL_SetWindowSize(screen->window, screen->frame_size.width, screen->frame_size.height);
SDL_SetWindowSize(screen->window, screen->frame_size.width,
screen->frame_size.height);
LOGD("Resized to pixel-perfect");
}
}

34
app/src/screen.h
View file

@ -38,36 +38,44 @@ struct screen {
}
// init SDL and set appropriate hints
SDL_bool sdl_init_and_configure(void);
SDL_bool
sdl_init_and_configure(void);
// initialize default values
void screen_init(struct screen *screen);
void
screen_init(struct screen *screen);
// initialize screen, create window, renderer and texture (window is hidden)
SDL_bool screen_init_rendering(struct screen *screen,
const char *device_name,
struct size frame_size,
SDL_bool always_on_top);
SDL_bool
screen_init_rendering(struct screen *screen, const char *device_name,
struct size frame_size, SDL_bool always_on_top);
// show the window
void screen_show_window(struct screen *screen);
void
screen_show_window(struct screen *screen);
// destroy window, renderer and texture (if any)
void screen_destroy(struct screen *screen);
void
screen_destroy(struct screen *screen);
// resize if necessary and write the rendered frame into the texture
SDL_bool screen_update_frame(struct screen *screen, struct video_buffer *vb);
SDL_bool
screen_update_frame(struct screen *screen, struct video_buffer *vb);
// render the texture to the renderer
void screen_render(struct screen *screen);
void
screen_render(struct screen *screen);
// switch the fullscreen mode
void screen_switch_fullscreen(struct screen *screen);
void
screen_switch_fullscreen(struct screen *screen);
// resize window to optimal size (remove black borders)
void screen_resize_to_fit(struct screen *screen);
void
screen_resize_to_fit(struct screen *screen);
// resize window to 1:1 (pixel-perfect)
void screen_resize_to_pixel_perfect(struct screen *screen);
void
screen_resize_to_pixel_perfect(struct screen *screen);
#endif

62
app/src/server.c
View file

@ -21,7 +21,8 @@
#define DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
static const char *get_server_path(void) {
static const char *
get_server_path(void) {
const char *server_path = getenv("SCRCPY_SERVER_PATH");
if (!server_path) {
server_path = DEFAULT_SERVER_PATH;
@ -29,32 +30,38 @@ static const char *get_server_path(void) {
return server_path;
}
static SDL_bool push_server(const char *serial) {
static SDL_bool
push_server(const char *serial) {
process_t process = adb_push(serial, get_server_path(), DEVICE_SERVER_PATH);
return process_check_success(process, "adb push");
}
static SDL_bool enable_tunnel_reverse(const char *serial, Uint16 local_port) {
static SDL_bool
enable_tunnel_reverse(const char *serial, Uint16 local_port) {
process_t process = adb_reverse(serial, SOCKET_NAME, local_port);
return process_check_success(process, "adb reverse");
}
static SDL_bool disable_tunnel_reverse(const char *serial) {
static SDL_bool
disable_tunnel_reverse(const char *serial) {
process_t process = adb_reverse_remove(serial, SOCKET_NAME);
return process_check_success(process, "adb reverse --remove");
}
static SDL_bool enable_tunnel_forward(const char *serial, Uint16 local_port) {
static SDL_bool
enable_tunnel_forward(const char *serial, Uint16 local_port) {
process_t process = adb_forward(serial, local_port, SOCKET_NAME);
return process_check_success(process, "adb forward");
}
static SDL_bool disable_tunnel_forward(const char *serial, Uint16 local_port) {
static SDL_bool
disable_tunnel_forward(const char *serial, Uint16 local_port) {
process_t process = adb_forward_remove(serial, local_port);
return process_check_success(process, "adb forward --remove");
}
static SDL_bool enable_tunnel(struct server *server) {
static SDL_bool
enable_tunnel(struct server *server) {
if (enable_tunnel_reverse(server->serial, server->local_port)) {
return SDL_TRUE;
}
@ -64,14 +71,16 @@ static SDL_bool enable_tunnel(struct server *server) {
return enable_tunnel_forward(server->serial, server->local_port);
}
static SDL_bool disable_tunnel(struct server *server) {
static SDL_bool
disable_tunnel(struct server *server) {
if (server->tunnel_forward) {
return disable_tunnel_forward(server->serial, server->local_port);
}
return disable_tunnel_reverse(server->serial);
}
static process_t execute_server(const char *serial,
static process_t
execute_server(const char *serial,
Uint16 max_size, Uint32 bit_rate,
SDL_bool tunnel_forward, const char *crop,
SDL_bool send_frame_meta) {
@ -96,11 +105,13 @@ static process_t execute_server(const char *serial,
#define IPV4_LOCALHOST 0x7F000001
static socket_t listen_on_port(Uint16 port) {
static socket_t
listen_on_port(Uint16 port) {
return net_listen(IPV4_LOCALHOST, port, 1);
}
static socket_t connect_and_read_byte(Uint16 port) {
static socket_t
connect_and_read_byte(Uint16 port) {
socket_t socket = net_connect(IPV4_LOCALHOST, port);
if (socket == INVALID_SOCKET) {
return INVALID_SOCKET;
@ -116,7 +127,8 @@ static socket_t connect_and_read_byte(Uint16 port) {
return socket;
}
static socket_t connect_to_server(Uint16 port, Uint32 attempts, Uint32 delay) {
static socket_t
connect_to_server(Uint16 port, Uint32 attempts, Uint32 delay) {
do {
LOGD("Remaining connection attempts: %d", (int) attempts);
socket_t socket = connect_and_read_byte(port);
@ -131,7 +143,8 @@ static socket_t connect_to_server(Uint16 port, Uint32 attempts, Uint32 delay) {
return INVALID_SOCKET;
}
static void close_socket(socket_t *socket) {
static void
close_socket(socket_t *socket) {
SDL_assert(*socket != INVALID_SOCKET);
net_shutdown(*socket, SHUT_RDWR);
if (!net_close(*socket)) {
@ -141,11 +154,13 @@ static void close_socket(socket_t *socket) {
*socket = INVALID_SOCKET;
}
void server_init(struct server *server) {
void
server_init(struct server *server) {
*server = (struct server) SERVER_INITIALIZER;
}
SDL_bool server_start(struct server *server, const char *serial,
SDL_bool
server_start(struct server *server, const char *serial,
Uint16 local_port, Uint16 max_size, Uint32 bit_rate,
const char *crop, SDL_bool send_frame_meta) {
server->local_port = local_port;
@ -173,8 +188,9 @@ SDL_bool server_start(struct server *server, const char *serial,
// At the application level, the device part is "the server" because it
// serves video stream and control. However, at the network level, the
// client listens and the server connects to the client. That way, the
// client can listen before starting the server app, so there is no need to
// try to connect until the server socket is listening on the device.
// client can listen before starting the server app, so there is no
// need to try to connect until the server socket is listening on the
// device.
server->server_socket = listen_on_port(local_port);
if (server->server_socket == INVALID_SOCKET) {
@ -204,13 +220,15 @@ SDL_bool server_start(struct server *server, const char *serial,
return SDL_TRUE;
}
socket_t server_connect_to(struct server *server) {
socket_t
server_connect_to(struct server *server) {
if (!server->tunnel_forward) {
server->device_socket = net_accept(server->server_socket);
} else {
Uint32 attempts = 100;
Uint32 delay = 100; // ms
server->device_socket = connect_to_server(server->local_port, attempts, delay);
server->device_socket = connect_to_server(server->local_port, attempts,
delay);
}
if (server->device_socket == INVALID_SOCKET) {
@ -229,7 +247,8 @@ socket_t server_connect_to(struct server *server) {
return server->device_socket;
}
void server_stop(struct server *server) {
void
server_stop(struct server *server) {
SDL_assert(server->process != PROCESS_NONE);
if (!cmd_terminate(server->process)) {
@ -245,7 +264,8 @@ void server_stop(struct server *server) {
}
}
void server_destroy(struct server *server) {
void
server_destroy(struct server *server) {
if (server->server_socket != INVALID_SOCKET) {
close_socket(&server->server_socket);
}

15
app/src/server.h
View file

@ -27,20 +27,25 @@ struct server {
}
// init default values
void server_init(struct server *server);
void
server_init(struct server *server);
// push, enable tunnel et start the server
SDL_bool server_start(struct server *server, const char *serial,
SDL_bool
server_start(struct server *server, const char *serial,
Uint16 local_port, Uint16 max_size, Uint32 bit_rate,
const char *crop, SDL_bool send_frame_meta);
// block until the communication with the server is established
socket_t server_connect_to(struct server *server);
socket_t
server_connect_to(struct server *server);
// disconnect and kill the server process
void server_stop(struct server *server);
void
server_stop(struct server *server);
// close and release sockets
void server_destroy(struct server *server);
void
server_destroy(struct server *server);
#endif

12
app/src/str_util.c
View file

@ -8,7 +8,8 @@
# include <tchar.h>
#endif
size_t xstrncpy(char *dest, const char *src, size_t n) {
size_t
xstrncpy(char *dest, const char *src, size_t n) {
size_t i;
for (i = 0; i < n - 1 && src[i] != '\0'; ++i)
dest[i] = src[i];
@ -17,7 +18,8 @@ size_t xstrncpy(char *dest, const char *src, size_t n) {
return src[i] == '\0' ? i : n;
}
size_t xstrjoin(char *dst, const char *const tokens[], char sep, size_t n) {
size_t
xstrjoin(char *dst, const char *const tokens[], char sep, size_t n) {
const char *const *remaining = tokens;
const char *token = *remaining++;
size_t i = 0;
@ -40,7 +42,8 @@ truncated:
return n;
}
char *strquote(const char *src) {
char *
strquote(const char *src) {
size_t len = strlen(src);
char *quoted = malloc(len + 3);
if (!quoted) {
@ -55,7 +58,8 @@ char *strquote(const char *src) {
#ifdef _WIN32
wchar_t *utf8_to_wide_char(const char *utf8) {
wchar_t *
utf8_to_wide_char(const char *utf8) {
int len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
if (!len) {
return NULL;

12
app/src/str_util.h
View file

@ -9,21 +9,25 @@
// - it does not write useless bytes if strlen(src) < n
// - it returns the number of chars actually written (max n-1) if src has
// been copied completely, or n if src has been truncated
size_t xstrncpy(char *dest, const char *src, size_t n);
size_t
xstrncpy(char *dest, const char *src, size_t n);
// join tokens by sep into dst
// returns the number of chars actually written (max n-1) if no trucation
// occurred, or n if truncated
size_t xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
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);
char *
strquote(const char *src);
#ifdef _WIN32
// convert a UTF-8 string to a wchar_t string
// returns the new allocated string, to be freed by the caller
wchar_t *utf8_to_wide_char(const char *utf8);
wchar_t *
utf8_to_wide_char(const char *utf8);
#endif
#endif

37
app/src/stream.c
View file

@ -22,7 +22,8 @@
#define HEADER_SIZE 12
#define NO_PTS UINT64_C(-1)
static struct frame_meta *frame_meta_new(Uint64 pts) {
static struct frame_meta *
frame_meta_new(Uint64 pts) {
struct frame_meta *meta = malloc(sizeof(*meta));
if (!meta) {
return meta;
@ -32,12 +33,13 @@ static struct frame_meta *frame_meta_new(Uint64 pts) {
return meta;
}
static void frame_meta_delete(struct frame_meta *frame_meta) {
static void
frame_meta_delete(struct frame_meta *frame_meta) {
free(frame_meta);
}
static SDL_bool receiver_state_push_meta(struct receiver_state *state,
Uint64 pts) {
static SDL_bool
receiver_state_push_meta(struct receiver_state *state, Uint64 pts) {
struct frame_meta *frame_meta = frame_meta_new(pts);
if (!frame_meta) {
return SDL_FALSE;
@ -53,7 +55,8 @@ static SDL_bool receiver_state_push_meta(struct receiver_state *state,
return SDL_TRUE;
}
static Uint64 receiver_state_take_meta(struct receiver_state *state) {
static Uint64
receiver_state_take_meta(struct receiver_state *state) {
struct frame_meta *frame_meta = state->frame_meta_queue; // first item
SDL_assert(frame_meta); // must not be empty
Uint64 pts = frame_meta->pts;
@ -62,7 +65,8 @@ static Uint64 receiver_state_take_meta(struct receiver_state *state) {
return pts;
}
static int read_packet_with_meta(void *opaque, uint8_t *buf, int buf_size) {
static int
read_packet_with_meta(void *opaque, uint8_t *buf, int buf_size) {
struct stream *stream = opaque;
struct receiver_state *state = &stream->receiver_state;
@ -121,7 +125,8 @@ static int read_packet_with_meta(void *opaque, uint8_t *buf, int buf_size) {
return r;
}
static int read_raw_packet(void *opaque, uint8_t *buf, int buf_size) {
static int
read_raw_packet(void *opaque, uint8_t *buf, int buf_size) {
struct stream *stream = opaque;
ssize_t r = net_recv(stream->socket, buf, buf_size);
if (r == -1) {
@ -133,13 +138,15 @@ static int read_raw_packet(void *opaque, uint8_t *buf, int buf_size) {
return r;
}
static void notify_stopped(void) {
static void
notify_stopped(void) {
SDL_Event stop_event;
stop_event.type = EVENT_STREAM_STOPPED;
SDL_PushEvent(&stop_event);
}
static int run_stream(void *data) {
static int
run_stream(void *data) {
struct stream *stream = data;
AVFormatContext *format_ctx = avformat_alloc_context();
@ -246,14 +253,16 @@ end:
return 0;
}
void stream_init(struct stream *stream, socket_t socket,
void
stream_init(struct stream *stream, socket_t socket,
struct decoder *decoder, struct recorder *recorder) {
stream->socket = socket;
stream->decoder = decoder,
stream->recorder = recorder;
}
SDL_bool stream_start(struct stream *stream) {
SDL_bool
stream_start(struct stream *stream) {
LOGD("Starting stream thread");
stream->thread = SDL_CreateThread(run_stream, "stream", stream);
@ -264,12 +273,14 @@ SDL_bool stream_start(struct stream *stream) {
return SDL_TRUE;
}
void stream_stop(struct stream *stream) {
void
stream_stop(struct stream *stream) {
if (stream->decoder) {
decoder_interrupt(stream->decoder);
}
}
void stream_join(struct stream *stream) {
void
stream_join(struct stream *stream) {
SDL_WaitThread(stream->thread, NULL);
}

15
app/src/stream.h
View file

@ -26,10 +26,17 @@ struct stream {
} receiver_state;
};
void stream_init(struct stream *stream, socket_t socket,
void
stream_init(struct stream *stream, socket_t socket,
struct decoder *decoder, struct recorder *recorder);
SDL_bool stream_start(struct stream *stream);
void stream_stop(struct stream *stream);
void stream_join(struct stream *stream);
SDL_bool
stream_start(struct stream *stream);
void
stream_stop(struct stream *stream);
void
stream_join(struct stream *stream);
#endif

12
app/src/sys/unix/command.c
View file

@ -11,7 +11,8 @@
#include <unistd.h>
#include "log.h"
enum process_result cmd_execute(const char *path, const char *const argv[], pid_t *pid) {
enum process_result
cmd_execute(const char *path, const char *const argv[], pid_t *pid) {
int fd[2];
if (pipe(fd) == -1) {
@ -72,15 +73,18 @@ end:
return ret;
}
SDL_bool cmd_terminate(pid_t pid) {
SDL_bool
cmd_terminate(pid_t pid) {
if (pid <= 0) {
LOGC("Requested to kill %d, this is an error. Please report the bug.\n", (int) pid);
LOGC("Requested to kill %d, this is an error. Please report the bug.\n",
(int) pid);
abort();
}
return kill(pid, SIGTERM) != -1;
}
SDL_bool cmd_simple_wait(pid_t pid, int *exit_code) {
SDL_bool
cmd_simple_wait(pid_t pid, int *exit_code) {
int status;
int code;
if (waitpid(pid, &status, 0) == -1 || !WIFEXITED(status)) {

9
app/src/sys/unix/net.c
View file

@ -2,15 +2,18 @@
# include <unistd.h>
SDL_bool net_init(void) {
SDL_bool
net_init(void) {
// do nothing
return SDL_TRUE;
}
void net_cleanup(void) {
void
net_cleanup(void) {
// do nothing
}
SDL_bool net_close(socket_t socket) {
SDL_bool
net_close(socket_t socket) {
return !close(socket);
}

18
app/src/sys/win/command.c
View file

@ -4,7 +4,8 @@
#include "log.h"
#include "str_util.h"
static int build_cmd(char *cmd, size_t len, const char *const argv[]) {
static int
build_cmd(char *cmd, size_t len, const char *const argv[]) {
// Windows command-line parsing is WTF:
// <http://daviddeley.com/autohotkey/parameters/parameters.htm#WINPASS>
// only make it work for this very specific program
@ -17,7 +18,8 @@ static int build_cmd(char *cmd, size_t len, const char *const argv[]) {
return 0;
}
enum process_result cmd_execute(const char *path, const char *const argv[], HANDLE *handle) {
enum process_result
cmd_execute(const char *path, const char *const argv[], HANDLE *handle) {
STARTUPINFOW si;
PROCESS_INFORMATION pi;
memset(&si, 0, sizeof(si));
@ -40,7 +42,8 @@ enum process_result cmd_execute(const char *path, const char *const argv[], HAND
#else
int flags = 0;
#endif
if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, flags, NULL, NULL, &si, &pi)) {
if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, flags, NULL, NULL, &si,
&pi)) {
free(wide);
*handle = NULL;
if (GetLastError() == ERROR_FILE_NOT_FOUND) {
@ -54,13 +57,16 @@ enum process_result cmd_execute(const char *path, const char *const argv[], HAND
return PROCESS_SUCCESS;
}
SDL_bool cmd_terminate(HANDLE handle) {
SDL_bool
cmd_terminate(HANDLE handle) {
return TerminateProcess(handle, 1) && CloseHandle(handle);
}
SDL_bool cmd_simple_wait(HANDLE handle, DWORD *exit_code) {
SDL_bool
cmd_simple_wait(HANDLE handle, DWORD *exit_code) {
DWORD code;
if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0 || !GetExitCodeProcess(handle, &code)) {
if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0
|| !GetExitCodeProcess(handle, &code)) {
// cannot wait or retrieve the exit code
code = -1; // max value, it's unsigned
}

9
app/src/sys/win/net.c
View file

@ -2,7 +2,8 @@
#include "log.h"
SDL_bool net_init(void) {
SDL_bool
net_init(void) {
WSADATA wsa;
int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
if (res < 0) {
@ -12,10 +13,12 @@ SDL_bool net_init(void) {
return SDL_TRUE;
}
void net_cleanup(void) {
void
net_cleanup(void) {
WSACleanup();
}
SDL_bool net_close(socket_t socket) {
SDL_bool
net_close(socket_t socket) {
return !closesocket(socket);
}

6
app/src/tiny_xpm.c
View file

@ -10,7 +10,8 @@ struct index {
Uint32 color;
};
static SDL_bool find_color(struct index *index, int len, char c, Uint32 *color) {
static SDL_bool
find_color(struct index *index, int len, char c, Uint32 *color) {
// there are typically very few color, so it's ok to iterate over the array
for (int i = 0; i < len; ++i) {
if (index[i].c == c) {
@ -30,7 +31,8 @@ static SDL_bool find_color(struct index *index, int len, char c, Uint32 *color)
//
// Parameter is not "const char *" because XPM formats are generally stored in a
// (non-const) "char *"
SDL_Surface *read_xpm(char *xpm[]) {
SDL_Surface *
read_xpm(char *xpm[]) {
#if SDL_ASSERT_LEVEL >= 2
// patch the XPM to change the icon color in debug mode
xpm[2] = ". c #CC00CC";

3
app/src/tiny_xpm.h
View file

@ -3,6 +3,7 @@
#include <SDL2/SDL.h>
SDL_Surface *read_xpm(char *xpm[]);
SDL_Surface *
read_xpm(char *xpm[]);
#endif

18
app/src/video_buffer.c
View file

@ -9,7 +9,8 @@
#include "lock_util.h"
#include "log.h"
SDL_bool video_buffer_init(struct video_buffer *vb) {
SDL_bool
video_buffer_init(struct video_buffer *vb) {
if (!(vb->decoding_frame = av_frame_alloc())) {
goto error_0;
}
@ -45,7 +46,8 @@ error_0:
return SDL_FALSE;
}
void video_buffer_destroy(struct video_buffer *vb) {
void
video_buffer_destroy(struct video_buffer *vb) {
#ifndef SKIP_FRAMES
SDL_DestroyCond(vb->rendering_frame_consumed_cond);
#endif
@ -54,13 +56,15 @@ void video_buffer_destroy(struct video_buffer *vb) {
av_frame_free(&vb->decoding_frame);
}
static void video_buffer_swap_frames(struct video_buffer *vb) {
static void
video_buffer_swap_frames(struct video_buffer *vb) {
AVFrame *tmp = vb->decoding_frame;
vb->decoding_frame = vb->rendering_frame;
vb->rendering_frame = tmp;
}
SDL_bool video_buffer_offer_decoded_frame(struct video_buffer *vb) {
SDL_bool
video_buffer_offer_decoded_frame(struct video_buffer *vb) {
mutex_lock(vb->mutex);
#ifndef SKIP_FRAMES
// if SKIP_FRAMES is disabled, then the decoder must wait for the current
@ -83,7 +87,8 @@ SDL_bool video_buffer_offer_decoded_frame(struct video_buffer *vb) {
return previous_frame_consumed;
}
const AVFrame *video_buffer_consume_rendered_frame(struct video_buffer *vb) {
const AVFrame *
video_buffer_consume_rendered_frame(struct video_buffer *vb) {
SDL_assert(!vb->rendering_frame_consumed);
vb->rendering_frame_consumed = SDL_TRUE;
if (vb->fps_counter.started) {
@ -97,7 +102,8 @@ const AVFrame *video_buffer_consume_rendered_frame(struct video_buffer *vb) {
return vb->rendering_frame;
}
void video_buffer_interrupt(struct video_buffer *vb) {
void
video_buffer_interrupt(struct video_buffer *vb) {
#ifdef SKIP_FRAMES
(void) vb; // unused
#else

16
app/src/video_buffer.h
View file

@ -22,21 +22,27 @@ struct video_buffer {
struct fps_counter fps_counter;
};
SDL_bool video_buffer_init(struct video_buffer *vb);
void video_buffer_destroy(struct video_buffer *vb);
SDL_bool
video_buffer_init(struct video_buffer *vb);
void
video_buffer_destroy(struct video_buffer *vb);
// set the decoded frame as ready for rendering
// this function locks frames->mutex during its execution
// returns true if the previous frame had been consumed
SDL_bool video_buffer_offer_decoded_frame(struct video_buffer *vb);
SDL_bool
video_buffer_offer_decoded_frame(struct video_buffer *vb);
// mark the rendering frame as consumed and return it
// MUST be called with frames->mutex locked!!!
// the caller is expected to render the returned frame to some texture before
// unlocking frames->mutex
const AVFrame *video_buffer_consume_rendered_frame(struct video_buffer *vb);
const AVFrame *
video_buffer_consume_rendered_frame(struct video_buffer *vb);
// wake up and avoid any blocking call
void video_buffer_interrupt(struct video_buffer *vb);
void
video_buffer_interrupt(struct video_buffer *vb);
#endif