From d098f35fa9cd20969a1fbf08d585f13a27166bef Mon Sep 17 00:00:00 2001
From: Sharad Sangle <assangle@codeaurora.org>
Date: Sat, 18 Jul 2015 19:26:22 +0530
Subject: audio: add support for offload FLAC

  Add support for FLAC playback in
  compressed offload mode

Change-Id: I617b41b867277272212d6cf1a6f82f646c5b1032
---
 media/libavextensions/stagefright/AVExtensions.h               |  4 ++++
 media/libavextensions/stagefright/AVUtils.cpp                  | 10 ++++++++++
 media/libstagefright/Utils.cpp                                 |  3 ++-
 services/audiopolicy/common/managerdefinitions/Android.mk      |  5 +++++
 .../common/managerdefinitions/include/ConfigParsingUtils.h     |  3 +++
 5 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/media/libavextensions/stagefright/AVExtensions.h b/media/libavextensions/stagefright/AVExtensions.h
index 08dbeeb..29f4cbc 100644
--- a/media/libavextensions/stagefright/AVExtensions.h
+++ b/media/libavextensions/stagefright/AVExtensions.h
@@ -31,12 +31,14 @@
 
 #include <media/stagefright/DataSource.h>
 #include <common/AVExtensionsCommon.h>
+#include <system/audio.h>
 
 namespace android {
 
 struct ACodec;
 class MediaExtractor;
 struct MediaCodec;
+class AudioParameter;
 
 /*
  * Factory to create objects of base-classes in libstagefright
@@ -58,6 +60,8 @@ struct AVUtils {
     virtual status_t convertMetaDataToMessage(
             const sp<MetaData> &meta, sp<AMessage> *format);
     virtual DataSource::SnifferFunc getExtendedSniffer();
+    virtual status_t mapMimeToAudioFormat( audio_format_t& format, const char* mime);
+    virtual status_t sendMetaDataToHal(const sp<MetaData>& meta, AudioParameter *param);
 
     virtual sp<MediaCodec> createCustomComponentByName(const sp<ALooper> &looper,
                 const char* mime, bool encoder);
diff --git a/media/libavextensions/stagefright/AVUtils.cpp b/media/libavextensions/stagefright/AVUtils.cpp
index 8fe0c53..d767f45 100644
--- a/media/libavextensions/stagefright/AVUtils.cpp
+++ b/media/libavextensions/stagefright/AVUtils.cpp
@@ -49,6 +49,16 @@ status_t AVUtils::convertMetaDataToMessage(
     return OK;
 }
 
+status_t AVUtils::mapMimeToAudioFormat(
+        audio_format_t&, const char* ) {
+        return OK;
+}
+
+status_t AVUtils::sendMetaDataToHal(
+        const sp<MetaData>&, AudioParameter *){
+        return OK;
+}
+
 static bool dumbSniffer(
         const sp<DataSource> &, String8 *,
         float *, sp<AMessage> *) {
diff --git a/media/libstagefright/Utils.cpp b/media/libstagefright/Utils.cpp
index e22c0c9..a8927ee 100644
--- a/media/libstagefright/Utils.cpp
+++ b/media/libstagefright/Utils.cpp
@@ -727,6 +727,7 @@ status_t sendMetaDataToHal(sp<MediaPlayerBase::AudioSink>& sink,
         param.addInt(String8(AUDIO_OFFLOAD_CODEC_PADDING_SAMPLES), paddingSamples);
     }
 
+    AVUtils::get()->sendMetaDataToHal(meta, &param);
     ALOGV("sendMetaDataToHal: bitRate %d, sampleRate %d, chanMask %d,"
           "delaySample %d, paddingSample %d", bitRate, sampleRate,
           channelMask, delaySamples, paddingSamples);
@@ -762,7 +763,7 @@ const struct mime_conv_t* p = &mimeLookup[0];
         ++p;
     }
 
-    return BAD_VALUE;
+    return AVUtils::get()->mapMimeToAudioFormat(format, mime);
 }
 
 struct aac_format_conv_t {
diff --git a/services/audiopolicy/common/managerdefinitions/Android.mk b/services/audiopolicy/common/managerdefinitions/Android.mk
index 8728ff3..81b0a7a 100644
--- a/services/audiopolicy/common/managerdefinitions/Android.mk
+++ b/services/audiopolicy/common/managerdefinitions/Android.mk
@@ -30,6 +30,11 @@ LOCAL_C_INCLUDES += \
 
 LOCAL_EXPORT_C_INCLUDE_DIRS := \
     $(LOCAL_PATH)/include
+ifeq ($(call is-vendor-board-platform,QCOM),true)
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_FLAC_OFFLOAD)),true)
+LOCAL_CFLAGS     += -DFLAC_OFFLOAD_ENABLED
+endif
+endif
 
 LOCAL_MODULE := libaudiopolicycomponents
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h b/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h
index e87397d..dfb3555 100644
--- a/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h
+++ b/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h
@@ -201,6 +201,9 @@ const StringToEnum sFormatNameToEnumTable[] = {
     STRING_TO_ENUM(AUDIO_FORMAT_E_AC3),
     STRING_TO_ENUM(AUDIO_FORMAT_DTS),
     STRING_TO_ENUM(AUDIO_FORMAT_DTS_HD),
+#ifdef FLAC_OFFLOAD_ENABLED
+    STRING_TO_ENUM(AUDIO_FORMAT_FLAC),
+#endif
 };
 
 const StringToEnum sOutChannelsNameToEnumTable[] = {
-- 
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