* @param max_samples How many samples to supply
* @param userdata As passed to uaudio_open()
* @return Number of samples filled
+ *
+ * This function should not block if possible (better to fill the buffer with
+ * 0s) and should definitely not block indefinitely. This great caution with
+ * any locks or syscalls! In particular avoid it taking a lock that may be
+ * held while any of the @ref uaudio members are called.
+ *
+ * If it's more convenient, it's OK to return less than the maximum number of
+ * samples (including 0) provided you expect to be called again for more
+ * samples immediately.
*/
typedef size_t uaudio_callback(void *buffer,
size_t max_samples,
* 0 is silent and 100 is maximum volume.
*/
void (*set_volume)(int *left, int *right);
+
+ /** @brief Set configuration */
+ void (*configure)(void);
};
void *userdata,
uaudio_playcallback *playcallback,
size_t min,
- size_t max);
+ size_t max,
+ unsigned flags);
+
+/** @brief Fake pauses
+ *
+ * This flag is used for audio backends that cannot sensibly be paused.
+ * The thread support code will supply silence while deactivated in this
+ * case.
+ */
+#define UAUDIO_THREAD_FAKE_PAUSE 0x00000001
+
void uaudio_thread_stop(void);
void uaudio_thread_activate(void);
void uaudio_thread_deactivate(void);