Use SDL_sound for the alstream example

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 */