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Commit 8152ab46 authored by Preetam Singh Ranawat's avatar Preetam Singh Ranawat Committed by SathishKumar Mani
Browse files

policy_hal: check PCM offload property for offload 

check 16 and 24 bit pcm offload properties to decide PCM offload
  support.

Change-Id: I553c94d392535d89046e1d301cc673b19833a21b
parent c5766ff3

policy_hal/Android.mk

+8 −0
Original line number Diff line number Diff line
@@ -35,6 +35,14 @@ ifeq ($(strip $(AUDIO_FEATURE_ENABLED_RECORD_PLAY_CONCURRENCY)),true) 
LOCAL_CFLAGS += -DRECORD_PLAY_CONCURRENCY

endif



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

    LOCAL_CFLAGS += -DPCM_OFFLOAD_ENABLED

endif



ifeq ($(strip $(AUDIO_FEATURE_ENABLED_PCM_OFFLOAD_24)),true)

       LOCAL_CFLAGS += -DPCM_OFFLOAD_ENABLED_24

endif



LOCAL_MODULE := libaudiopolicymanager



include $(BUILD_SHARED_LIBRARY)

policy_hal/AudioPolicyManager.cpp

+58 −29
Original line number Diff line number Diff line
@@ -351,21 +351,49 @@ bool AudioPolicyManagerCustom::isOffloadSupported(const audio_offload_info_t& of 
        return false;

    }

#endif

    // Check if offload has been disabled

    // Check if stream type is music, then only allow offload as of now.

    if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC)

    {

        ALOGV("isOffloadSupported: stream_type != MUSIC, returning false");

        return false;

    }



    char propValue[PROPERTY_VALUE_MAX];

    bool pcmOffload = false;

#ifdef PCM_OFFLOAD_ENABLED

    if ((offloadInfo.format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM_OFFLOAD) {

        bool prop_enabled = false;

        if ((AUDIO_FORMAT_PCM_16_BIT_OFFLOAD == offloadInfo.format) &&

               property_get("audio.offload.pcm.16bit.enable", propValue, NULL)) {

            prop_enabled = atoi(propValue) || !strncmp("true", propValue, 4);

        }



#ifdef PCM_OFFLOAD_ENABLED_24

        if ((AUDIO_FORMAT_PCM_24_BIT_OFFLOAD == offloadInfo.format) &&

               property_get("audio.offload.pcm.24bit.enable", propValue, NULL)) {

            prop_enabled = atoi(propValue) || !strncmp("true", propValue, 4);

        }

#endif



        if (prop_enabled) {

            ALOGI("PCM offload property is enabled");

            pcmOffload = true;

        }



        if (!pcmOffload) {

            ALOGD("system property not enabled for PCM offload format[%x]",offloadInfo.format);

            return false;

        }

    }

#endif

    if (!pcmOffload) {

        // Check if offload has been disabled

        if (property_get("audio.offload.disable", propValue, "0")) {

            if (atoi(propValue) != 0) {

                ALOGV("offload disabled by audio.offload.disable=%s", propValue );

                return false;

            }

        }



    // Check if stream type is music, then only allow offload as of now.

    if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC)

    {

        ALOGV("isOffloadSupported: stream_type != MUSIC, returning false");

        return false;

    }

        //check if it's multi-channel AAC (includes sub formats) and FLAC format

        if ((popcount(offloadInfo.channel_mask) > 2) &&

           (((offloadInfo.format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_AAC) ||
@@ -391,6 +419,7 @@ bool AudioPolicyManagerCustom::isOffloadSupported(const audio_offload_info_t& of 
            ALOGV("isOffloadSupported: has_video == true, returning false");

            return false;

        }

    }



    //If duration is less than minimum value defined in property, return false

    if (property_get("audio.offload.min.duration.secs", propValue, NULL)) {