Scaling quality difference between Windows ram vs vram encoding path

Nobody has claimed this yet.

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Is your issue described in the documentation?

- [X] I have read the documentation

### Is your issue present in the nightly release?

- [X] This issue is present in the nightly release

### Describe the Bug

Host configuration: Windows 10, RX 6600 running at 1440p.
Client configuration: Ubuntu 22.10, Moonlight-QT 4.3.1 (flatpak), 1366x768 @ 90MBps.

`amdvce` encoder on latest nightly:

`amdvce` encoder patched[1] to use `ram` software rendering path:

[1] Patch:
```
diff --git a/src/video.cpp b/src/video.cpp
index f6e0904..80a13c9 100644
--- a/src/video.cpp
+++ b/src/video.cpp
@@ -532,8 +532,8 @@ static encoder_t quicksync {

static encoder_t amdvce {
"amdvce"sv,
- AV_HWDEVICE_TYPE_D3D11VA, AV_HWDEVICE_TYPE_NONE,
- AV_PIX_FMT_D3D11,
+ AV_HWDEVICE_TYPE_NONE, AV_HWDEVICE_TYPE_NONE,
+ AV_PIX_FMT_NONE,
AV_PIX_FMT_NV12, AV_PIX_FMT_P010,
{
// Common options
@@ -571,7 +571,7 @@ static encoder_t amdvce {
"h264_amf"s,
},
PARALLEL_ENCODING,
- dxgi_make_hwdevice_ctx
+ nullptr
};
#endif

```

### Expected Behavior

Images should appear mostly identical, but the `ram` encoding path has better filtering of scaled image and therefore much better legibility of the fonts of the screenshot in particular.

### Additional Context

The `libx264` encoder also has subjectively "good" scaling, but I provided a screenshot with the the `amdvce` encoder patched to use the software rendering path to eliminate the variable of AMD's encoding being poorer than `libx264` to explain the issue (it seems not).

There is also an image corruption issue for a few dozen pixels along the entire right-hand side of the screen that occurs when Moonlight is set to capture at `1366x768`, but does not occur at more standard resolutions such as 1080p. That is probably not related to the scaling quality issue.

### Host Operating System

Windows

### Operating System Version

10 22H2 19045.2364

### Architecture

64 bit

### Sunshine commit or version

7770b5f708675854674e8372af9227ee91ce5882

### Package

Windows - installer

### GPU Type

AMD

### GPU Model

RX 6600

### GPU Driver/Mesa Version

22.11.2

### Capture Method (Linux Only)

_No response_

### Relevant log output

_No response_