add AAC audio decoder params for PCM limiter enable

Bug: 17470065
Change-Id: Ib67aa1c50e3b6c24c4b12b0f31a996cc6874abd1

3 files changed, 16 insertions, 3 deletions

diff --git a/include/media/stagefright/ACodec.h b/include/media/stagefright/ACodec.h
index da4c20c..df0dc58 100644
--- a/include/media/stagefright/ACodec.h
+++ b/include/media/stagefright/ACodec.h
@@ -267,7 +267,8 @@ private:
             bool encoder,
             int32_t numChannels, int32_t sampleRate, int32_t bitRate,
             int32_t aacProfile, bool isADTS, int32_t sbrMode,
-            int32_t maxOutputChannelCount, const drcParams_t& drc);
+            int32_t maxOutputChannelCount, const drcParams_t& drc,
+            int32_t pcmLimiterEnable);
 
     status_t setupAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
 
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index 3c04859..7ca5d9e 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -1359,6 +1359,7 @@ status_t ACodec::configureCodec(
             int32_t isADTS, aacProfile;
             int32_t sbrMode;
             int32_t maxOutputChannelCount;
+            int32_t pcmLimiterEnable;
             drcParams_t drc;
             if (!msg->findInt32("is-adts", &isADTS)) {
                 isADTS = 0;
@@ -1373,6 +1374,10 @@ status_t ACodec::configureCodec(
             if (!msg->findInt32("aac-max-output-channel_count", &maxOutputChannelCount)) {
                 maxOutputChannelCount = -1;
             }
+            if (!msg->findInt32("aac-pcm-limiter-enable", &pcmLimiterEnable)) {
+                // value is unknown
+                pcmLimiterEnable = -1;
+            }
             if (!msg->findInt32("aac-encoded-target-level", &drc.encodedTargetLevel)) {
                 // value is unknown
                 drc.encodedTargetLevel = -1;
@@ -1396,7 +1401,8 @@ status_t ACodec::configureCodec(
 
             err = setupAACCodec(
                     encoder, numChannels, sampleRate, bitRate, aacProfile,
-                    isADTS != 0, sbrMode, maxOutputChannelCount, drc);
+                    isADTS != 0, sbrMode, maxOutputChannelCount, drc,
+                    pcmLimiterEnable);
         }
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_NB)) {
         err = setupAMRCodec(encoder, false /* isWAMR */, bitRate);
@@ -1561,7 +1567,8 @@ status_t ACodec::selectAudioPortFormat(
 status_t ACodec::setupAACCodec(
         bool encoder, int32_t numChannels, int32_t sampleRate,
         int32_t bitRate, int32_t aacProfile, bool isADTS, int32_t sbrMode,
-        int32_t maxOutputChannelCount, const drcParams_t& drc) {
+        int32_t maxOutputChannelCount, const drcParams_t& drc,
+        int32_t pcmLimiterEnable) {
     if (encoder && isADTS) {
         return -EINVAL;
     }
@@ -1691,6 +1698,7 @@ status_t ACodec::setupAACCodec(
     presentation.nHeavyCompression = drc.heavyCompression;
     presentation.nTargetReferenceLevel = drc.targetRefLevel;
     presentation.nEncodedTargetLevel = drc.encodedTargetLevel;
+    presentation.nPCMLimiterEnable = pcmLimiterEnable;
 
     status_t res = mOMX->setParameter(mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
     if (res == OK) {
diff --git a/media/libstagefright/codecs/aacdec/SoftAAC2.cpp b/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
index fb27dca..287fcc8 100644
--- a/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
+++ b/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
@@ -368,6 +368,10 @@ OMX_ERRORTYPE SoftAAC2::internalSetParameter(
                         aacPresParams->nEncodedTargetLevel);
                 updateDrcWrapper = true;
             }
+            if (aacPresParams->nPCMLimiterEnable >= 0) {
+                aacDecoder_SetParam(mAACDecoder, AAC_PCM_LIMITER_ENABLE,
+                        (aacPresParams->nPCMLimiterEnable != 0));
+            }
             if (updateDrcWrapper) {
                 mDrcWrap.update();
             }