SDL: audio: Choose better default sample frame counts.

SDL Commits
1 
From 47d8c77c6794de7fd1bdb3132399245d9c578a86 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Wed, 13 Sep 2023 10:27:11 -0400
Subject: [PATCH] audio: Choose better default sample frame counts.

This might still need tweaking, but this is probably better than it was.
---
 src/audio/SDL_audio.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/audio/SDL_audio.c b/src/audio/SDL_audio.c
index 15e28e793cc6..edcfd71a2b9a 100644
--- a/src/audio/SDL_audio.c
+++ b/src/audio/SDL_audio.c
@@ -1246,9 +1246,19 @@ static void PrepareAudioFormat(SDL_bool iscapture, SDL_AudioSpec *spec)
     }
 }
 
-static int GetDefaultSampleFramesFromFreq(int freq)
-{
-    return SDL_powerof2((freq / 1000) * 46);  // Pick the closest power-of-two to ~46 ms at desired frequency
+static int GetDefaultSampleFramesFromFreq(const int freq)
+{
+    if (freq <= 11025) {
+        return 512;
+    } else if (freq <= 22050) {
+        return 1024;
+    } else if (freq <= 48000) {
+        return 2048;
+    } else if (freq <= 96000) {
+        return 4096;
+    } else {
+        return 8192;  // shrug
+    }
 }
 
 void SDL_UpdatedAudioDeviceFormat(SDL_AudioDevice *device)