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Commit 8652b46b authored by Ravi Kumar Alamanda's avatar Ravi Kumar Alamanda Committed by Vineeta Srivastava
Browse files

visualizer: do not apply calibration on audio routed to afe proxy 

When compress offload playback is active, if the Visualizer effect
is enabled, decoded PCM audio is routed to AFE Proxy port and
read from it by the Visualizer wrapper library. When audio is routed
to proxy port, current output device specific calibration is also
being applied which is not desired.
Avoid this by sending default audio calibration i.e. no post-processing
to be applied the data.

Bug: 18390493

Change-Id: Id576c4ed7bbb482683074e3e33aa5760b7597d37
parent f2829017

visualizer/Android.mk

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ LOCAL_CFLAGS+= -O2 -fvisibility=hidden 
LOCAL_SHARED_LIBRARIES := \

	libcutils \

	liblog \

	libdl \

	libtinyalsa



LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/soundfx

visualizer/offload_visualizer.c

+26 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <string.h>

#include <time.h>

#include <sys/prctl.h>

#include <dlfcn.h>



#include <cutils/list.h>

#include <cutils/log.h>
@@ -29,6 +30,15 @@ 
#include <tinyalsa/asoundlib.h>

#include <audio_effects/effect_visualizer.h>



#define LIB_ACDB_LOADER "libacdbloader.so"

#define ACDB_DEV_TYPE_OUT 1

#define AFE_PROXY_ACDB_ID 45



static void* acdb_handle;



typedef void (*acdb_send_audio_cal_t)(int, int);



acdb_send_audio_cal_t acdb_send_audio_cal;



enum {

    EFFECT_STATE_UNINITIALIZED,
@@ -294,6 +304,9 @@ int configure_proxy_capture(struct mixer *mixer, int value) { 
    const char *proxy_ctl_name = "AFE_PCM_RX Audio Mixer MultiMedia4";

    struct mixer_ctl *ctl;



    if (value && acdb_send_audio_cal)

        acdb_send_audio_cal(AFE_PROXY_ACDB_ID, ACDB_DEV_TYPE_OUT);



    ctl = mixer_get_ctl_by_name(mixer, proxy_ctl_name);

    if (ctl == NULL) {

        ALOGW("%s: could not get %s ctl", __func__, proxy_ctl_name);
@@ -609,6 +622,19 @@ int visualizer_init(effect_context_t *context) 


    set_config(context, &context->config);



    if (acdb_handle == NULL) {

        acdb_handle = dlopen(LIB_ACDB_LOADER, RTLD_NOW);

        if (acdb_handle == NULL) {

            ALOGE("%s: DLOPEN failed for %s", __func__, LIB_ACDB_LOADER);

        } else {

            acdb_send_audio_cal = (acdb_send_audio_cal_t)dlsym(acdb_handle,

                                                    "acdb_loader_send_audio_cal");

            if (!acdb_send_audio_cal)

                ALOGE("%s: Could not find the symbol acdb_send_audio_cal from %s",

                      __func__, LIB_ACDB_LOADER);

            }

    }



    return 0;

}