Get the gain of an audio stream.
Defined in <SDL3/SDL_audio.h>
float SDL_GetAudioStreamGain(SDL_AudioStream *stream);
SDL_AudioStream * | stream | the SDL_AudioStream to query. |
(float) Returns the gain of the stream or -1.0f on failure; call SDL_GetError() for more information.
The gain of a stream is its volume; a larger gain means a louder output, with a gain of zero being silence.
Audio streams default to a gain of 1.0f (no change in output).
It is safe to call this function from any thread, as it holds a stream-specific mutex while running.
This function is available since SDL 3.0.0.