diff options
Diffstat (limited to 'include/media/EffectApi.h')
| -rw-r--r-- | include/media/EffectApi.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/include/media/EffectApi.h b/include/media/EffectApi.h index a1bc3b8..97874f7 100644 --- a/include/media/EffectApi.h +++ b/include/media/EffectApi.h @@ -114,7 +114,8 @@ typedef struct effect_descriptor_s { // +---------------------------+-----------+----------------------------------- // | Volume management | 5..6 | 0 none // | | | 1 implements volume control -// | | | 2..3 reserved +// | | | 2 requires volume indication +// | | | 3 reserved // +---------------------------+-----------+----------------------------------- // | Device management | 7..8 | 0 none // | | | 1 requires device updates @@ -154,6 +155,7 @@ typedef struct effect_descriptor_s { // volume control #define EFFECT_FLAG_VOLUME_MASK 0x00000060 #define EFFECT_FLAG_VOLUME_CTRL 0x00000020 +#define EFFECT_FLAG_VOLUME_IND 0x00000040 #define EFFECT_FLAG_VOLUME_NONE 0x00000000 // device control @@ -296,10 +298,12 @@ struct effect_interface_s { // | Set and get volume. Used by | EFFECT_CMD_SET_VOLUME | size: n * sizeof(uint32_t) | size: n * sizeof(uint32_t) // | audio framework to delegate | | data: volume for each channel | data: volume for each channel // | volume control to effect engine| | defined in effect_config_t in | defined in effect_config_t in -// | The engine must return the | | 8.24 fixed point format | 8.24 fixed point format -// | volume that should be applied | | | -// | before the effect is processed | | | -// | The overall volume (the volume | | | +// | If volume control flag is set | | 8.24 fixed point format | 8.24 fixed point format +// | in the effect descriptor, the | | | It is legal to receive a null +// | effect engine must return the | | | pointer as pReplyData in which +// | volume that should be applied | | | case the effect framework has +// | before the effect is processed | | | delegated volume control to +// | The overall volume (the volume | | | another effect. // | actually applied by the effect | | | // | multiplied by the returned | | | // | value) should match the | | | @@ -370,7 +374,7 @@ typedef struct buffer_provider_s { // structure that defines both input and output buffer configurations and is // passed by the EFFECT_CMD_CONFIGURE command. typedef struct buffer_config_s { - audio_buffer_t buffer; // buffer for use by process() function is not passed explicitly + audio_buffer_t buffer; // buffer for use by process() function if not passed explicitly uint32_t samplingRate; // sampling rate uint32_t channels; // channel mask (see audio_channels_e in AudioCommon.h) buffer_provider_t bufferProvider; // buffer provider @@ -457,7 +461,7 @@ typedef struct effect_param_s { // // Function: EffectQueryNumberEffects // -// Description: Returns the number of different effect exposed by the +// Description: Returns the number of different effects exposed by the // library. Each effect must have a unique effect uuid (see // effect_descriptor_t). This function together with EffectQueryNext() // is used to enumerate all effects present in the library. @@ -475,7 +479,7 @@ typedef struct effect_param_s { // *pNumEffects: updated with number of effects in library // //////////////////////////////////////////////////////////////////////////////// -typedef int32_t (*effect_QueryNumberEffects_t)(int32_t *pNumEffects); +typedef int32_t (*effect_QueryNumberEffects_t)(uint32_t *pNumEffects); //////////////////////////////////////////////////////////////////////////////// // @@ -521,7 +525,7 @@ typedef int32_t (*effect_QueryNextEffect_t)(effect_descriptor_t *pDescriptor); // returned value: 0 successful operation. // -ENODEV library failed to initialize // -EINVAL invalid pEffectUuid or pInterface -// -ENOENT No effect with this uuid found +// -ENOENT no effect with this uuid found // *pInterface: updated with the effect interface handle. // //////////////////////////////////////////////////////////////////////////////// |