diff options
Diffstat (limited to 'examples/common/sdl_sound.h')
-rw-r--r-- | examples/common/sdl_sound.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/examples/common/sdl_sound.h b/examples/common/sdl_sound.h new file mode 100644 index 00000000..e93ab92b --- /dev/null +++ b/examples/common/sdl_sound.h @@ -0,0 +1,43 @@ +#ifndef EXAMPLES_SDL_SOUND_H +#define EXAMPLES_SDL_SOUND_H + +#include "AL/al.h" + +#include <SDL_sound.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* Opaque handles to files and streams. Apps don't need to concern themselves + * with the internals */ +typedef Sound_Sample *FilePtr; + +/* Opens a file with SDL_sound, and specifies the size of the sample buffer in + * milliseconds. */ +FilePtr openAudioFile(const char *fname, size_t buftime_ms); + +/* Closes/frees an opened file */ +void closeAudioFile(FilePtr file); + +/* Returns information about the given audio stream. Returns 0 on success. */ +int getAudioInfo(FilePtr file, ALuint *rate, ALenum *channels, ALenum *type); + +/* Returns a pointer to the next available chunk of decoded audio. The size (in + * bytes) of the returned data buffer is stored in 'length', and the returned + * pointer is only valid until the next call to getAudioData. */ +uint8_t *getAudioData(FilePtr file, size_t *length); + +/* Decodes all remaining data from the stream and returns a buffer containing + * the audio data, with the size stored in 'length'. The returned pointer must + * be freed with a call to free(). Note that since this decodes the whole + * stream, using it on lengthy streams (eg, music) will use a lot of memory. + * Such streams are better handled using getAudioData to keep smaller chunks in + * memory at any given time. */ +void *decodeAudioStream(FilePtr, size_t *length); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* EXAMPLES_SDL_SOUND_H */ |