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Commit 6ab6e562 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "hal: add support to use low lantecy as primay output"

parents 4df9f889 08c7e31b

hal/Android.mk

+4 −0
Original line number Diff line number Diff line
@@ -56,6 +56,10 @@ ifeq ($(strip $(AUDIO_FEATURE_ENABLED_HDMI_EDID)),true) 
    LOCAL_SRC_FILES += edid.c

endif



ifeq ($(strip $(AUDIO_USE_LL_AS_PRIMARY_OUTPUT)),true)

    LOCAL_CFLAGS += -DUSE_LL_AS_PRIMARY_OUTPUT

endif



ifeq ($(strip $(AUDIO_FEATURE_ENABLED_PCM_OFFLOAD)),true)

    LOCAL_CFLAGS += -DPCM_OFFLOAD_ENABLED

endif

hal/audio_hw.c

+12 −1
Original line number Diff line number Diff line
@@ -81,7 +81,13 @@ 
#define PROXY_OPEN_RETRY_COUNT           100

#define PROXY_OPEN_WAIT_TIME             20



#ifdef USE_LL_AS_PRIMARY_OUTPUT

#define USECASE_AUDIO_PLAYBACK_PRIMARY USECASE_AUDIO_PLAYBACK_LOW_LATENCY

#define PCM_CONFIG_AUDIO_PLAYBACK_PRIMARY pcm_config_low_latency

#else

#define USECASE_AUDIO_PLAYBACK_PRIMARY USECASE_AUDIO_PLAYBACK_DEEP_BUFFER

#define PCM_CONFIG_AUDIO_PLAYBACK_PRIMARY pcm_config_deep_buffer

#endif



static unsigned int configured_low_latency_capture_period_size =

        LOW_LATENCY_CAPTURE_PERIOD_SIZE;
@@ -2945,11 +2951,16 @@ static int adev_open_output_stream(struct audio_hw_device *dev, 
        out->usecase = USECASE_AUDIO_PLAYBACK_LOW_LATENCY;

        out->config = pcm_config_low_latency;

        out->sample_rate = out->config.rate;

    } else if (out->flags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {

        format = AUDIO_FORMAT_PCM_16_BIT;

        out->usecase = USECASE_AUDIO_PLAYBACK_DEEP_BUFFER;

        out->config = pcm_config_deep_buffer;

        out->sample_rate = out->config.rate;

    } else {

        /* primary path is the default path selected if no other outputs are available/suitable */

        format = AUDIO_FORMAT_PCM_16_BIT;

        out->usecase = USECASE_AUDIO_PLAYBACK_PRIMARY;

        out->config = pcm_config_deep_buffer;

        out->config = PCM_CONFIG_AUDIO_PLAYBACK_PRIMARY;

        out->sample_rate = out->config.rate;

    }