Audio HAL: added interface for audio preprocessing

Change-Id: I0a84ddbff53f13662873f69d9be4dfa13ebcb8fe

1 files changed, 28 insertions, 0 deletions

diff --git a/audio/audio_hw_hal.cpp b/audio/audio_hw_hal.cpp
index 4fb4a8e..e6805c5 100644
--- a/audio/audio_hw_hal.cpp
+++ b/audio/audio_hw_hal.cpp
@@ -162,6 +162,16 @@ static int out_get_render_position(const struct audio_stream_out *stream,
     return out->legacy_out->getRenderPosition(dsp_frames);
 }
 
+static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    return 0;
+}
+
+static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    return 0;
+}
+
 /** audio_stream_in implementation **/
 static uint32_t in_get_sample_rate(const struct audio_stream *stream)
 {
@@ -263,6 +273,20 @@ static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
     return in->legacy_in->getInputFramesLost();
 }
 
+static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    const struct legacy_stream_in *in =
+        reinterpret_cast<const struct legacy_stream_in *>(stream);
+    return in->legacy_in->addAudioEffect(effect);
+}
+
+static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    const struct legacy_stream_in *in =
+        reinterpret_cast<const struct legacy_stream_in *>(stream);
+    return in->legacy_in->removeAudioEffect(effect);
+}
+
 /** audio_hw_device implementation **/
 static inline struct legacy_audio_device * to_ladev(struct audio_hw_device *dev)
 {
@@ -397,6 +421,8 @@ static int adev_open_output_stream(struct audio_hw_device *dev,
     out->stream.common.dump = out_dump;
     out->stream.common.set_parameters = out_set_parameters;
     out->stream.common.get_parameters = out_get_parameters;
+    out->stream.common.add_audio_effect = out_add_audio_effect;
+    out->stream.common.remove_audio_effect = out_remove_audio_effect;
     out->stream.get_latency = out_get_latency;
     out->stream.set_volume = out_set_volume;
     out->stream.write = out_write;
@@ -455,6 +481,8 @@ static int adev_open_input_stream(struct audio_hw_device *dev,
     in->stream.common.dump = in_dump;
     in->stream.common.set_parameters = in_set_parameters;
     in->stream.common.get_parameters = in_get_parameters;
+    in->stream.common.add_audio_effect = in_add_audio_effect;
+    in->stream.common.remove_audio_effect = in_remove_audio_effect;
     in->stream.set_gain = in_set_gain;
     in->stream.read = in_read;
     in->stream.get_input_frames_lost = in_get_input_frames_lost;