Add the video standard property and hide it by default.

Add a helper function to enumerate video standards supported by the
selected input and add them to a property.

Add a helper function to get the capabilities of a specific or the
currently selected input of the device.

Remove the constraint for device inputs to be of the type "CAMERA".
This was added under the false assumption that inputs of the type
"TUNER" are only used for control purposes.

Somehow managed to forget to add this function at an earlier point.
Allows the audio device to be changed via a simple update.

This allows the code to be used elsewhere as needed.

This was caused to do the new RTMP code that added support for multiple
streams; the stream index needs to be reset on RTMP_Close otherwise it
will keep using the wrong stream information.

UI: Fix rounding issues for advanced audio

Remove the close_float check for values that are set through the
advanced UI. If the difference of the integer was 1 this would sometimes
cause the input to be ignored.
Add rounding to values that are set through the signal system, since
casting alone will act like floor, which is not desirable in this case.

Previously having a source multiple times in a single scene would cause
the recursion check to trigger. Example scenes.json:

{
    "current_scene": "Scene",
    "sources": [
        {
            "flags": 0,
            "id": "scene",
            "mixers": 0,
            "name": "Scene",
            "settings": {
                "items": [
                    {
                        "align": 5,
                        "bounds": {
                            "x": 0.0,
                            "y": 0.0
                        },
                        "bounds_align": 0,
                        "bounds_type": 0,
                        "name": "Text (FreeType 2)",
                        "pos": {
                            "x": 0.0,
                            "y": 0.0
                        },
                        "rot": 0.0,
                        "scale": {
                            "x": 1.0,
                            "y": 1.0
                        },
                        "visible": true
                    },
                    {
                        "align": 5,
                        "bounds": {
                            "x": 0.0,
                            "y": 0.0
                        },
                        "bounds_align": 0,
                        "bounds_type": 0,
                        "name": "Text (FreeType 2)",
                        "pos": {
                            "x": 0.0,
                            "y": 98.0
                        },
                        "rot": 0.0,
                        "scale": {
                            "x": 1.0,
                            "y": 1.0
                        },
                        "visible": true
                    }
                ]
            },
            "sync": 0,
            "volume": 1.0
        },
        {
            "flags": 0,
            "id": "text_ft2_source",
            "mixers": 0,
            "name": "Text (FreeType 2)",
            "settings": {},
            "sync": 0,
            "volume": 1.0
        }
    ]
}

Previously a NULL item would cause a crash when reading transform info.
The crash can be reproduced by e.g. editing scenes.json so that two
scenes contain each other. Example scenes.json:

{
    "current_scene": "Scene",
    "sources": [
        {
            "flags": 0,
            "id": "scene",
            "mixers": 0,
            "name": "Scene",
            "settings": {
                "items": [
                    {
                        "align": 5,
                        "bounds": {
                            "x": 1440.0,
                            "y": 900.0
                        },
                        "bounds_align": 0,
                        "bounds_type": 2,
                        "name": "Scene 2",
                        "pos": {
                            "x": 0.0,
                            "y": 0.0
                        },
                        "rot": 0.0,
                        "scale": {
                            "x": 1.0,
                            "y": 1.0
                        },
                        "visible": true
                    }
                ]
            },
            "sync": 0,
            "volume": 1.0
        },
        {
            "flags": 0,
            "id": "scene",
            "mixers": 0,
            "name": "Scene 2",
            "settings": {
                "items": [
                    {
                        "align": 5,
                        "bounds": {
                            "x": 1.0,
                            "y": 1.0
                        },
                        "bounds_align": 0,
                        "bounds_type": 0,
                        "name": "Scene",
                        "pos": {
                            "x": 854.0,
                            "y": -520.0
                        },
                        "rot": 0.0,
                        "scale": {
                            "x": 1.75,
                            "y": 1.7562724351882935
                        },
                        "visible": true
                    }
                ]
            },
            "sync": 0,
            "volume": 1.0
        }
    ]
}

Display "No properties available" text in the property view if there are
no properties available.

Closes Pull Request #377

Since we rely on the dynamic linker to find the library for us via
dlopen(), we need to have DL_OPENGL be .so.N, not the full library
filename, as ldconfig doesn't cache the full filename

Use of TARGET_SONAME_FILE requires the library to be marked as SHARED,
not MODULE

This closes pull request #370

Using advanced output mode, the stream encoder could be updated with the
same settings, causing the encoder to output those changes
unnecessarily.

The recording settings are updated only when not using the streaming
encoder for recording.

Fix typo in README

Do not update the avermedia encoders if they are already active, they
weren't designed to be updated in real time, so it will cause encoding
to break.

If the jsonData string is null, then there's nothing that should be
written.

Closes pull request #366 from Socapex/debugcrash

win-dshow: Reorder CapsMatch for gcc

UI: Small fixes to advanced audio settings

I had this issue where IDXGISwapChain::ResizeBuffers would fail in the
hooks, causing games to crash when they resized their backbuffers
because ResizeBuffers would return an 'invalid call' HRESULT value.  In
the ResizeBuffers documentation it says that it will only happen if a
backbuffer currently has any outstanding references, but there's no way
this would happen unless ResizeBuffers internally calls Present or vise
versa.

After ResizeBuffers has been called, the very first call to Present will
somehow seemingly invalidate and/or destroy the current backbuffer.
It's very strange, but that seems to be what's going on, at least for
the game I was testing.  So if you are performing a post-overlay
capture, then you must ignore the capture on the very first call to
Present.

It's Microsoft's code so you can't really know what's going on, you just
have to work around these strange issues seemingly in the dark.

Although STDMETHODCALLTYPE is technically WINAPI (__stdcall), it's best
not to make any assumptions.

Slight clarification (I guess)

These had an older name of what the function used to be named

Fixed a bug in color conversion code for 16bit textures.

Add a check to prevent that the advanced audio settings dialog is only
once. When the dialog is already present raise it to the top instead.

Delete source controls when the settings window is deleted.

Add latest translations from crowdin

Add latest translations from crowdin

Currently, this allows the setting of values such as:
- Audio buffering time
- Color format (still somewhat unsupported)
- YUV color space (if a YUV format)
= YUV color range (if a YUV format)

More color formats will be added in the future, such as RGB and YUV
4:2:2 formats.