diff options
Diffstat (limited to 'include/media/AudioEffect.h')
| -rw-r--r-- | include/media/AudioEffect.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/media/AudioEffect.h b/include/media/AudioEffect.h index 496b23e..1417416 100644 --- a/include/media/AudioEffect.h +++ b/include/media/AudioEffect.h @@ -21,6 +21,7 @@ #include <sys/types.h> #include <media/IAudioFlinger.h> +#include <media/IAudioPolicyService.h> #include <media/IEffect.h> #include <media/IEffectClient.h> #include <hardware/audio_effect.h> @@ -111,6 +112,36 @@ public: /* + * Returns a list of descriptors corresponding to the pre processings enabled by default + * on an AudioRecord with the supplied audio session ID. + * + * Parameters: + * audioSession: audio session ID. + * descriptors: address where the effect descriptors should be returned. + * count: as input, the maximum number of descriptor than should be returned + * as output, the number of descriptor returned if status is NO_ERROR or the actual + * number of enabled pre processings if status is NO_MEMORY + * + * Returned status (from utils/Errors.h) can be: + * NO_ERROR successful operation. + * NO_MEMORY the number of descriptor to return is more than the maximum number + * indicated by count. + * PERMISSION_DENIED could not get AudioFlinger interface + * NO_INIT effect library failed to initialize + * BAD_VALUE invalid audio session or descriptor pointers + * + * Returned value + * *descriptor updated with descriptors of pre processings enabled by default + * *count number of descriptors returned if returned status is N_ERROR. + * total number of pre processing enabled by default if returned status is + * NO_MEMORY. This happens if the count passed as input is less than the number + * of descriptors to return + */ + static status_t queryDefaultPreProcessing(int audioSession, + effect_descriptor_t *descriptors, + uint32_t *count); + + /* * Events used by callback function (effect_callback_t). */ enum event_type { |