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Merge branch 'master' into rhythia

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Cherry 2026-05-10 15:23:35 +03:00 • committed by GitHub
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24
examples/audio/audio_stream_effects.c
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@ -1,13 +1,15 @@
/*******************************************************************************************
*
* raylib [audio] example - Music stream processing effects
* raylib [audio] example - stream effects
*
* Example complexity rating: [★★★★] 4/4
*
* Example originally created with raylib 4.2, last time updated with raylib 5.0
*
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software
*
* Copyright (c) 2022-2024 Ramon Santamaria (@raysan5)
* Copyright (c) 2022-2025 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
@ -15,7 +17,9 @@
#include <stdlib.h> // Required for: NULL
// Required delay effect variables
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
static float *delayBuffer = NULL;
static unsigned int delayBufferSize = 0;
static unsigned int delayReadIndex = 2;
@ -52,7 +56,7 @@ int main(void)
float timePlayed = 0.0f; // Time played normalized [0.0f..1.0f]
bool pause = false; // Music playing paused
bool enableEffectLPF = false; // Enable effect low-pass-filter
bool enableEffectDelay = false; // Enable effect delay (1 second)
@ -97,7 +101,7 @@ int main(void)
if (enableEffectDelay) AttachAudioStreamProcessor(music.stream, AudioProcessEffectDelay);
else DetachAudioStreamProcessor(music.stream, AudioProcessEffectDelay);
}
// Get normalized time played for current music stream
timePlayed = GetMusicTimePlayed(music)/GetMusicTimeLength(music);
@ -118,7 +122,7 @@ int main(void)
DrawText("PRESS SPACE TO RESTART MUSIC", 215, 230, 20, LIGHTGRAY);
DrawText("PRESS P TO PAUSE/RESUME MUSIC", 208, 260, 20, LIGHTGRAY);
DrawText(TextFormat("PRESS F TO TOGGLE LPF EFFECT: %s", enableEffectLPF? "ON" : "OFF"), 200, 320, 20, GRAY);
DrawText(TextFormat("PRESS D TO TOGGLE DELAY EFFECT: %s", enableEffectDelay? "ON" : "OFF"), 180, 350, 20, GRAY);
@ -147,8 +151,8 @@ int main(void)
static void AudioProcessEffectLPF(void *buffer, unsigned int frames)
{
static float low[2] = { 0.0f, 0.0f };
static const float cutoff = 70.0f / 44100.0f; // 70 Hz lowpass filter
const float k = cutoff / (cutoff + 0.1591549431f); // RC filter formula
static const float cutoff = 70.0f/44100.0f; // 70 Hz lowpass filter
const float k = cutoff/(cutoff + 0.1591549431f); // RC filter formula
// Converts the buffer data before using it
float *bufferData = (float *)buffer;
@ -157,8 +161,8 @@ static void AudioProcessEffectLPF(void *buffer, unsigned int frames)
const float l = bufferData[i];
const float r = bufferData[i + 1];
low[0] += k * (l - low[0]);
low[1] += k * (r - low[1]);
low[0] += k*(l - low[0]);
low[1] += k*(r - low[1]);
bufferData[i] = low[0];
bufferData[i + 1] = low[1];
}