###### (This function is part of SDL_mixer, a separate library from SDL.) # Mix_MusicDuration Get a music object's duration, in seconds. ## Header File Defined in [](https://github.com/libsdl-org/SDL_mixer/blob/main/include/SDL3_mixer/SDL_mixer.h) ## Syntax ```c double Mix_MusicDuration(Mix_Music *music); ``` ## Function Parameters | | | | | ------------------------ | --------- | -------------------------- | | [Mix_Music](Mix_Music) * | **music** | the music object to query. | ## Return Value (double) Returns music duration in seconds, or -1.0 on error. ## Remarks To convert to milliseconds, multiply by 1000.0. If NULL is passed, returns duration of current playing music. ## Version This function is available since SDL_mixer 3.0.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategorySDLMixer](CategorySDLMixer)