From 0c19cf7478f4dc10f2739bf6eefa1887a79b48cf Mon Sep 17 00:00:00 2001
From: Steve Kondik <steve@cyngn.com>
Date: Sat, 12 Dec 2015 21:28:57 -0800
Subject: stagefright: Add support for FLAC offloading

 * New Qualcomm DSPs support FLAC decoding, but the offload code is
   stubbed out in M. Unstub it from what used to be open source.

Change-Id: I03c129c42ebc6909a3392e42a7f96791c8fabd28
---
 media/libavextensions/Android.mk                       |  6 ++++++
 media/libavextensions/mediaplayerservice/AVNuUtils.cpp |  3 +++
 media/libavextensions/stagefright/AVExtensions.h       |  2 +-
 media/libavextensions/stagefright/AVUtils.cpp          | 17 +++++++++++++----
 4 files changed, 23 insertions(+), 5 deletions(-)

(limited to 'media/libavextensions')

diff --git a/media/libavextensions/Android.mk b/media/libavextensions/Android.mk
index a39a76e..8099ad4 100644
--- a/media/libavextensions/Android.mk
+++ b/media/libavextensions/Android.mk
@@ -17,9 +17,15 @@ LOCAL_C_INCLUDES:= \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror
 
+ifeq ($(call is-vendor-board-platform,QCOM),true)
+LOCAL_C_INCLUDES += $(TARGET_OUT_HEADERS)/mm-audio
 ifeq ($(TARGET_ENABLE_QC_AV_ENHANCEMENTS),true)
        LOCAL_CFLAGS += -DENABLE_AV_ENHANCEMENTS
 endif
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_FLAC_OFFLOAD)),true)
+       LOCAL_CFLAGS += -DFLAC_OFFLOAD_ENABLED
+endif
+endif
 
 LOCAL_MODULE:= libavextensions
 LOCAL_CFLAGS += -DLOG_NDEBUG=0
diff --git a/media/libavextensions/mediaplayerservice/AVNuUtils.cpp b/media/libavextensions/mediaplayerservice/AVNuUtils.cpp
index 8a78767..c475fd3 100644
--- a/media/libavextensions/mediaplayerservice/AVNuUtils.cpp
+++ b/media/libavextensions/mediaplayerservice/AVNuUtils.cpp
@@ -228,6 +228,9 @@ void AVNuUtils::setPCMFormat(const sp<AMessage> &format, audio_format_t audioFor
 }
 
 void AVNuUtils::setSourcePCMFormat(const sp<MetaData> &audioMeta) {
+    if (!isRAWFormat(audioMeta))
+        return;
+
     audio_format_t pcmFormat = getKeyPCMFormat(audioMeta);
     ALOGI("setSourcePCMFormat fmt=%x", pcmFormat);
     audioMeta->dumpToLog();
diff --git a/media/libavextensions/stagefright/AVExtensions.h b/media/libavextensions/stagefright/AVExtensions.h
index 0b70c08..9474d19 100644
--- a/media/libavextensions/stagefright/AVExtensions.h
+++ b/media/libavextensions/stagefright/AVExtensions.h
@@ -35,10 +35,10 @@
 #include <camera/ICamera.h>
 #include <media/mediarecorder.h>
 #include <media/IOMX.h>
+#include <media/AudioParameter.h>
 
 namespace android {
 
-class AudioParameter;
 class MetaData;
 class MediaExtractor;
 class MPEG4Writer;
diff --git a/media/libavextensions/stagefright/AVUtils.cpp b/media/libavextensions/stagefright/AVUtils.cpp
index c36e0bb..02648fb 100644
--- a/media/libavextensions/stagefright/AVUtils.cpp
+++ b/media/libavextensions/stagefright/AVUtils.cpp
@@ -42,6 +42,9 @@
 #ifdef QCOM_HARDWARE
 #include "QCMediaDefs.h"
 #include "QCMetaData.h"
+#ifdef FLAC_OFFLOAD_ENABLED
+#include "audio_defs.h"
+#endif
 #endif
 
 #include "common/ExtensionsLoader.hpp"
@@ -84,6 +87,12 @@ static const MetaKeyEntry MetaKeyTable[] {
    {kKeyUseArbitraryMode     , "use-arbitrary-mode"     , INT32},  //bool (int32_t)
    {kKeySmoothStreaming      , "smooth-streaming"       , INT32},  //bool (int32_t)
    {kKeyHFR                  , "hfr"                    , INT32},  // int32_t
+#ifdef FLAC_OFFLOAD_ENABLED
+   {kKeyMinBlkSize           , "min-block-size"         , INT32},
+   {kKeyMaxBlkSize           , "max-block-size"         , INT32},
+   {kKeyMinFrmSize           , "min-frame-size"         , INT32},
+   {kKeyMaxFrmSize           , "max-frame-size"         , INT32},
+#endif
 #endif
 
 
@@ -221,16 +230,16 @@ status_t AVUtils::sendMetaDataToHal(
 #ifdef FLAC_OFFLOAD_ENABLED
     int32_t minBlkSize, maxBlkSize, minFrmSize, maxFrmSize; //FLAC params
     if (meta->findInt32(kKeyMinBlkSize, &minBlkSize)) {
-        param.addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MIN_BLK_SIZE), minBlkSize);
+        param->addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MIN_BLK_SIZE), minBlkSize);
     }
     if (meta->findInt32(kKeyMaxBlkSize, &maxBlkSize)) {
-        param.addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MAX_BLK_SIZE), maxBlkSize);
+        param->addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MAX_BLK_SIZE), maxBlkSize);
     }
     if (meta->findInt32(kKeyMinFrmSize, &minFrmSize)) {
-        param.addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MIN_FRAME_SIZE), minFrmSize);
+        param->addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MIN_FRAME_SIZE), minFrmSize);
     }
     if (meta->findInt32(kKeyMaxFrmSize, &maxFrmSize)) {
-        param.addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MAX_FRAME_SIZE), maxFrmSize);
+        param->addInt(String8(AUDIO_OFFLOAD_CODEC_FLAC_MAX_FRAME_SIZE), maxFrmSize);
     }
 #else
     (void)meta;
-- 
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