macosx/fspanel: allow continued clicks on the backward/forward buttons like we do in windowed mode (close #7258)

Close #6013

Close #5525

Ref #5583

Also add a fail-safe to refresh playlist from server if local copy doesn't
contain active title.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This is a temporary hack to make the volume controls mostly work until
Windows volume notifications are correctly implemented.

disabled for now until we have a decoder

We need to check whether we would like to apply this patch by default on OS X and Windows, too.

Ref #7210

The lack of channels seem to be blocking transcoding of flac files
Ref #4179 #6400

This might not be enough, though

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

vout_macosx: disable the VOUT_DISPLAY_HIDE_MOUSE event to not hide mouse cursor when we need it visible.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Close #5583

Playlist is cached/updated locally within browser instead of
refreshing after each function call.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Regression hidden by 6fe7eb60.

Regression hidden by 6fe7eb60.

This reverts commit 6fe7eb60.
These checks are still in use outside of memcpy() optimizations.
Note this revert breaks the build on some platforms due to code rot.

There is no need to test OS support for SSE2, and later. If plain SSE
works, the OS preserves the XMM registers and that's all we care.

 - Assembler code out of line
 - ARM NEON run-time detection
 - Better choice of registers
 - Prefetching
 - ARMv6 SIMD optimizations where Advanced SIMD not available

Scheduling is not completely optimal.

In retrospect, I should have done that first. Oh well...