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This commit fixes a crash on Debian Stretch and Ubuntu 17.10 when you fallback
from VDPAU (GLX forced) to SW decoding (EGL by default).

Fixes #19982

Indeed, this variable can be "any" if it was previously reset from preference
settings.

Do the 3 values in one pass. This allow doing tone mapping even on 9.1
compatible GPUs which have a restricted number of instructions/slots.

That only happens when D3D11 is forced on Win7

The calculation was wrong, we should compare the length of the previous block.

Regression from 1f246d26

Fixes #19873

In some case we may only want to check the build number so the other values
should be set to 0.
That's also how driver versions are written for Winstore build so the code
becomes more generic.

This resampler is used by PulseAudio and used and tested since 3 years by our
android port. There is very good quality/CPU time ratio since it uses SIMD on
armv7/arm64/x86/x86_64.

It should be enabled by default, but should the priority be higher than src ?

On iOS, the render callback is called by default with 1024 frames, and 4096
when the screen is OFF. 4096 frames @ 44.1Hhz is around 88ms, which is higher
than AOUT_MAX_PTS_DELAY (60ms). This caused the resampler to be started/stopped
very often when the screen was OFF due to the imprecision of 88ms from the
TimeGet callback.

To fix this issue, this commit disable the TimeGet callback when the latency is
too high.

This will also save some CPU time by disabling any synchronisation when the
screen is OFF. From my tests, high latency is only triggered by switching OFF
the display.

Fixes #18939

There are some conflicts with the previously generated CMakeCache.txt

The bswap16, bswap32 and bswap64 functions are already present on NetBSD
and cannot be redefined in include/vlc_common.h as this causes fatal build
errors.

Rename these functions to vlc_bswap16, vlc_bswap32 and vlc_bswap64 and
keep them as they are without fallback to the NetBSD's libc one. These
functions are already small enough and we can bear with them as duplicates
on the gain of no extra ifdefs in the vlc_common.h public header.
Signed-off-by: Thomas Guillem <thomas@gllm.fr>

Regression from 2d062f70.

Rather than failing and existing silently.

Later patch wants to use argv[0].

Let the vlc binary instantiate LibVLC correctly. It will fail to initialize the
interface and handle the error commonly there.

left over from 8f05427aSigned-off-by: Rémi Denis-Courmont <remi@remlab.net>

This option is outdated and does not work anymore.

Those are also usually wanted by developement builds.

This should give a complete environment when using env.build.sh
as a standalone helper.

This file is included and used in build.sh. Additionally, it can
be directly sourced into the current shell, to have a correct
environment for local builds.
The first parameter specifies if the environment for "vlc" or
"contrib" shall be provided.

Per Remi's request
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Not everybody uses dot as the decimal separator.

This reverts commit cf716aa8.