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[examples] Add audio_stream_callback (#5638)

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* Add audio_raw_stream_callback.c

* Update audio_raw_stream_callback.c to more closely follow raylib coding conventions

* Remove spaces before asterisks in comments in audio_raw_stream_callback.c

* Put SetTargetFPS(30) before while(!WindowShouldClose()) in audio_raw_stream_callback.c

* Add audio_stream_callback.c

* Delete examples/audio/audio_raw_stream_callback.c

* Delete examples/audio/audio_raw_stream_callback.png

* Update audio_raw_stream.c to more closely follow raylib coding conventions

Drawing code wasn't tabbed in

* Remove screenshot code in audio_stream_callback.c

* Update raylib version and copyright year in audio_raw_stream.c

* Update audio_stream_callback.c

Used if instead of switch to compact code; seemed more readable in this case.
This commit is contained in:
dan-hoang
2026-03-13 10:51:49 -07:00
committed by GitHub
parent f83590aa37
commit 70cb8d15e0
3 changed files with 258 additions and 22 deletions
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44
examples/audio/audio_raw_stream.c
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@ -4,14 +4,14 @@
*
* Example complexity rating: [★★★☆] 3/4
*
* Example originally created with raylib 1.6, last time updated with raylib 4.2
* Example originally created with raylib 1.6, last time updated with raylib 6.0
*
* Example created by Ramon Santamaria (@raysan5) and reviewed by James Hofmann (@triplefox)
*
* 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) 2015-2025 Ramon Santamaria (@raysan5) and James Hofmann (@triplefox)
* Copyright (c) 2015-2026 Ramon Santamaria (@raysan5) and James Hofmann (@triplefox)
*
********************************************************************************************/
@ -109,26 +109,26 @@ int main(void)
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
DrawText(TextFormat("sine frequency: %i", sineFrequency), screenWidth - 220, 10, 20, RED);
DrawText(TextFormat("pan: %.2f", pan), screenWidth - 220, 30, 20, RED);
DrawText("Up/down to change frequency", 10, 10, 20, DARKGRAY);
DrawText("Left/right to pan", 10, 30, 20, DARKGRAY);
int windowStart = (GetTime() - sineStartTime)*SAMPLE_RATE;
int windowSize = 0.1f*SAMPLE_RATE;
int wavelength = SAMPLE_RATE/sineFrequency;
// Draw a sine wave with the same frequency as the one being sent to the audio stream
for (int i = 0; i < screenWidth; i++)
{
int t0 = windowStart + i*windowSize/screenWidth;
int t1 = windowStart + (i + 1)*windowSize/screenWidth;
Vector2 startPos = { i, 250 + 50*sin(2*PI*t0/wavelength) };
Vector2 endPos = { i + 1, 250 + 50*sin(2*PI*t1/wavelength) };
DrawLineV(startPos, endPos, RED);
}
ClearBackground(RAYWHITE);
DrawText(TextFormat("sine frequency: %i", sineFrequency), screenWidth - 220, 10, 20, RED);
DrawText(TextFormat("pan: %.2f", pan), screenWidth - 220, 30, 20, RED);
DrawText("Up/down to change frequency", 10, 10, 20, DARKGRAY);
DrawText("Left/right to pan", 10, 30, 20, DARKGRAY);
int windowStart = (GetTime() - sineStartTime)*SAMPLE_RATE;
int windowSize = 0.1f*SAMPLE_RATE;
int wavelength = SAMPLE_RATE/sineFrequency;
// Draw a sine wave with the same frequency as the one being sent to the audio stream
for (int i = 0; i < screenWidth; i++)
{
int t0 = windowStart + i*windowSize/screenWidth;
int t1 = windowStart + (i + 1)*windowSize/screenWidth;
Vector2 startPos = { i, 250 + 50*sin(2*PI*t0/wavelength) };
Vector2 endPos = { i + 1, 250 + 50*sin(2*PI*t1/wavelength) };
DrawLineV(startPos, endPos, RED);
}
EndDrawing();
//----------------------------------------------------------------------------------