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.
Change-Id: Id576c4ed7bbb482683074e3e33aa5760b7597d37
diff --git a/visualizer/Android.mk b/visualizer/Android.mk
index 393eec3..87d4987 100644
--- a/visualizer/Android.mk
+++ b/visualizer/Android.mk
@@ -24,6 +24,7 @@
LOCAL_SHARED_LIBRARIES := \
libcutils \
liblog \
+ libdl \
libtinyalsa
LOCAL_MODULE_RELATIVE_PATH := soundfx
diff --git a/visualizer/offload_visualizer.c b/visualizer/offload_visualizer.c
index 94c44a5..d363b77 100644
--- a/visualizer/offload_visualizer.c
+++ b/visualizer/offload_visualizer.c
@@ -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 @@
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);
@@ -614,6 +627,19 @@
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;
}