Signed-off-by: Nnpes87184 <npes87184@gmail.com>

Add an option to crop the screen on the server. This allows to mirror
only part of the device screen.

5 seconds might not be sufficient:
<https://github.com/Genymobile/scrcpy/issues/213>

Increase to 10 seconds (it does not harm).

av_register_all() is deprecated in FFmpeg since this commit:
<http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=0694d8702421e7aff1340038559c438b61bb30dd>

It is now useless to call it:
<https://ffmpeg.org/pipermail/ffmpeg-devel/2018-February/225051.html>

Fixes <https://github.com/Genymobile/scrcpy/issues/203>.

Send repeated events when holding volume up/down shortcuts.

Shortcuts generated instant DOWN/UP key events. Instead, generate DOWN
event on Ctrl+key down and UP event on Ctrl+key up.

Fixes <https://github.com/Genymobile/scrcpy/issues/166>.

Replace "implying" by "involving" (both "impliquant" in French).

A missing initialization (fixed by the previous commit) leaded to kill
unexpected process.

In order to prevent consequences of similar errors in the future, never
call kill() with a non-positive PID.

See <https://github.com/Genymobile/scrcpy/issues/182>.

The current_process field of struct installer was not initialized.
Since the installer instance is static, its default value was 0.

The call to installer_stop() then called kill(0, SIGTERM) (on Linux),
which sent SIGTERM to every process in the process group. In particular,
the scrcpy process was killed.

As a consequence, the last cleanup steps, like disabling "show touches",
were not executed.

Fixes <https://github.com/Genymobile/scrcpy/issues/183>.

On Windows, display the output of external commands (adb) when a console
is available.

Add the drag & drop shortcut for installing an APK file to the README
and the help.

Windows will parse the string, so the local name must be quoted.

<https://github.com/Genymobile/scrcpy/pull/133>

If len is not positive, w could be returned uninitialized.

In practice, proc_show_touches may not be used uninitialized, since it
checks the flag options->show_touches, but the compiler can't know that,
so initialize it to avoid the warning.

Once the controller took a control event, release the mutex before
processing it, so that the main thread is not blocked to push a new
event.

Fail on SDL_strdup() failure, and free the duplicated serial on further
error.

Include string.h and stdio.h explicitly.

Forward numpad ENTER key to the device.

Fixes <https://github.com/Genymobile/scrcpy/issues/117>.

Fix the following warning (with -Wpedantic enabled):

    pointer of type ‘void *’ used in arithmetic [-Wpointer-arith]

Sending data only require to read the input buffer, so declare it const.

I could not make Ctrl+'+' and Ctrl+'-' work for every keyboard on every
platform.

Instead, use Ctrl+UP and Ctrl+DOWN (like in VLC) to change the volume.

Fixes <https://github.com/Genymobile/scrcpy/issues/103>.

SDL_CreateTexture() is called both during initialization and on frame
size change.

To avoid inconsistent changes to arguments value, factorize them to a
single function create_texture().

Double-clicks were not sent to the device anymore since the
"double-click on black borders" feature.

When a double click occurs inside the device screen, send the event to
the device normally.

Fixes <https://github.com/Genymobile/scrcpy/issues/97>.

Enabling "show touches" involves the execution of an adb command, which
takes some time.

In order to parallelize, execute the command as soon as possible, but
reap the process only once everything is initialized.

If --show-touches is set, then the option must be disabled on quit.

Since it executes an adb command, it takes some time, so close the
window beforehand so that the close window button does not seem
unresponsive.

Add -t/--show-touches option to show physical touches while scrcpy is
running.

See <https://github.com/Genymobile/scrcpy/issues/96>.

The scrcpy() function accepts as many parameters as there are options.

To simplify, group all options in a separate struct.

On H.264 stream EOF, the eof_reached flag is set, but av_read_frame()
still provides a frame, so check the flag only afterwards.

As a side-effect, it also fixes a memory leak (the very last packet was
not unref).

Ctrl+s was mapped to MENU, while Ctrl+m was mapped to APP_SWITCH.

To avoid confusion, swap the shortcuts:
 - Ctrl+m like _M_enu
 - Ctrl+s like _S_witch

The action sends AKEYCODE_MENU, so just name it "menu".

See <https://github.com/Genymobile/scrcpy/pull/85>.

Request SDL not to replace the SIGINT and SIGTERM handlers, so that the
process is immediately terminated on Ctrl+C.

This avoids process hanging on Ctrl+C during network calls on
initialization.

Some of them accepted a timeout, but it was not used since
commit 9b056f50 anymore.

Remove unnecessary additional blocks.

All headers and sources are in src/. To avoid using relative includes
from subdirectories ("../../"), include the source root directory.

In "adb forward" mode, it may take a while before the server socket is
listening, so increase the number of connection attempts.

See <https://github.com/Genymobile/scrcpy/issues/5#issuecomment-373718551>.

The types size_t and ssize_t are defined on Windows (in MSYS2), so there
is no need to typedef SIZE_T and SSIZE_T.

Exit code is "unsigned long" both on Windows 32 and 64 bits.

See <https://github.com/Genymobile/scrcpy/issues/46#issuecomment-373603596>.

For consistency with mouse button events handling, directly assign from
Sint32 to Uint16.

Mouse "wheel button" is meaningless :)