(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GetCameraSupportedFormats

Get the list of native formats/sizes a camera supports.

Header File

Syntax

SDL_CameraSpec ** SDL_GetCameraSupportedFormats(SDL_CameraID devid, int *count);

Function Parameters

SDL_CameraID	devid	the camera device instance ID to query.
int *	count	a pointer filled in with the number of elements in the list, may be NULL.

Return Value

(SDL_CameraSpec **) Returns a NULL terminated array of pointers to SDL_CameraSpec or NULL on failure; call SDL_GetError() for more information. This is a single allocation that should be freed with SDL_free() when it is no longer needed.

Remarks

This returns a list of all formats and frame sizes that a specific camera can offer. This is useful if your app can accept a variety of image formats and sizes and so want to find the optimal spec that doesn't require conversion.

This function isn't strictly required; if you call SDL_OpenCamera with a NULL spec, SDL will choose a native format for you, and if you instead specify a desired format, it will transparently convert to the requested format on your behalf.

If count is not NULL, it will be filled with the number of elements in the returned array.

Note that it's legal for a camera to supply an empty list. This is what will happen on Emscripten builds, since that platform won't tell anything about available cameras until you've opened one, and won't even tell if there is a camera until the user has given you permission to check through a scary warning popup.

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.