(cherry picked from commit eeaa54cf)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 3f7a8904)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 74d28b3e)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 9e211e0c)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

The code was never enabled.

It should fix a potential segfault when the vout is closed.

(cherry picked from commit 8a9bd2d8)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 264444a1)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 2624f9af)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit aab61e71)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit cb89f6d5)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit fc4b7b3c)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 9dd13ebf)

(cherry picked from commit 1f0135f4)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

It has little benefits in general, (esp. in our usecase) and huge disadvantages for files on network mounts.
"Basically, IOKit should be so fast and efficient, that there are few usecases left for mmap() on Darwin."
(cherry picked from commit 400b6736)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit 7d7a42b8)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

(cherry picked from commit eca65494)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

See http://git.videolan.org/gitweb.cgi/x264.git/?a=commit;h=c89bc900a3bf0d4c4c728ad378703970b4f14e18 for more details.
(cherry picked from commit 229a8957)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

This reverts commit 1d80eeb8.
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>

This reverts commit c3f9f69f.

(cherry picked from commit b9dc29f1)

(cherry picked from commit 888c97bb)

(cherry picked from commit 10445c27)

(cherry picked from commit 5ddb6667)

(cherry picked from commit cdc6a08d)

(cherry picked from commit 44286759)

(cherry picked from commit bd587fbb)

I believe this path cannot be triggered at the moment however, as
there quite few block_Realloc users. Fixes CID#197.
(cherry picked from commit 2c3d9f17)

(cherry picked from commit 8d834912)

(cherry picked from commit 9087d31f)

(cherry picked from commit 47805700)