MediaPlayer2: use protobuf instead of parcel for notification message

Test: MediaPlayer2Test
Bug: 112767225
Change-Id: I7f5bd177c138a8ad5c005f4505d4d9c5042486a8
diff --git a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h
index 715bbe0..55d812b 100644
--- a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h
+++ b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Interface.h
@@ -60,7 +60,8 @@
 class MediaPlayer2InterfaceListener: public RefBase
 {
 public:
-    virtual void notify(int64_t srcId, int msg, int ext1, int ext2, const Parcel *obj) = 0;
+    virtual void notify(int64_t srcId, int msg, int ext1, int ext2,
+           const PlayerMessage *obj) = 0;
 };
 
 class MediaPlayer2Interface : public AHandler {
@@ -240,7 +241,7 @@
         mListener = listener;
     }
 
-    void sendEvent(int64_t srcId, int msg, int ext1=0, int ext2=0, const Parcel *obj=NULL) {
+    void sendEvent(int64_t srcId, int msg, int ext1=0, int ext2=0, const PlayerMessage *obj=NULL) {
         sp<MediaPlayer2InterfaceListener> listener;
         {
             Mutex::Autolock autoLock(mListenerLock);
diff --git a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
index 628e732..e03b499 100644
--- a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
+++ b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
@@ -42,7 +42,8 @@
 class MediaPlayer2Listener: virtual public RefBase
 {
 public:
-    virtual void notify(int64_t srcId, int msg, int ext1, int ext2, const Parcel *obj) = 0;
+    virtual void notify(int64_t srcId, int msg, int ext1, int ext2,
+            const PlayerMessage *obj = NULL) = 0;
 };
 
 class MediaPlayer2 : public MediaPlayer2InterfaceListener
@@ -89,7 +90,7 @@
             bool            isLooping();
             status_t        setVolume(float leftVolume, float rightVolume);
             void            notify(int64_t srcId, int msg, int ext1, int ext2,
-                                   const Parcel *obj = NULL);
+                                   const PlayerMessage *obj = NULL);
             status_t        invoke(const PlayerMessage &request, PlayerMessage *reply);
             status_t        setMetadataFilter(const Parcel& filter);
             status_t        getMetadata(bool update_only, bool apply_filter, Parcel *metadata);
diff --git a/media/libmediaplayer2/mediaplayer2.cpp b/media/libmediaplayer2/mediaplayer2.cpp
index 18cf040..8d0df8a 100644
--- a/media/libmediaplayer2/mediaplayer2.cpp
+++ b/media/libmediaplayer2/mediaplayer2.cpp
@@ -223,7 +223,8 @@
 
     ~proxyListener() { };
 
-    virtual void notify(int64_t srcId, int msg, int ext1, int ext2, const Parcel *obj) override {
+    virtual void notify(int64_t srcId, int msg, int ext1, int ext2,
+            const PlayerMessage *obj) override {
         sp<MediaPlayer2> player = mPlayer.promote();
         if (player != NULL) {
             player->notify(srcId, msg, ext1, ext2, obj);
@@ -1271,7 +1272,7 @@
     }
 }
 
-void MediaPlayer2::notify(int64_t srcId, int msg, int ext1, int ext2, const Parcel *obj) {
+void MediaPlayer2::notify(int64_t srcId, int msg, int ext1, int ext2, const PlayerMessage *obj) {
     ALOGV("message received srcId=%lld, msg=%d, ext1=%d, ext2=%d",
           (long long)srcId, msg, ext1, ext2);
 
diff --git a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
index e317e23..4ce1a88 100644
--- a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
+++ b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
@@ -1590,15 +1590,20 @@
         return OK; // source without DRM info
     }
 
-    sp<ABuffer> drmInfoBuffer = NuPlayer2Drm::retrieveDrmInfo(psshInfo);
-    ALOGV("checkDrmInfo: MEDIA_DRM_INFO PSSH drm info size: %d", (int)drmInfoBuffer->size());
+    PlayerMessage playerMsg;
+    status_t ret = NuPlayer2Drm::retrieveDrmInfo(psshInfo, &playerMsg);
+    ALOGV("checkDrmInfo: MEDIA_DRM_INFO PSSH drm info size: %d", (int)playerMsg.ByteSize());
 
-    if (drmInfoBuffer->size() == 0) {
-        ALOGE("checkDrmInfo: Unexpected parcel size: 0");
+    if (ret != OK) {
+        ALOGE("checkDrmInfo: failed to retrive DrmInfo %d", ret);
         return UNKNOWN_ERROR;
     }
 
-    notifyDrmInfo(drmInfoBuffer);
+    int size = playerMsg.ByteSize();
+    sp<ABuffer> drmInfoBuf = new ABuffer(size);
+    playerMsg.SerializeToArray(drmInfoBuf->data(), size);
+    drmInfoBuf->setRange(0, size);
+    notifyDrmInfo(drmInfoBuf);
 
     return OK;
 }
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
index 2a0fbdd..2ec7bc0 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
@@ -2145,7 +2145,8 @@
             displayHeight);
 }
 
-void NuPlayer2::notifyListener(int64_t srcId, int msg, int ext1, int ext2, const Parcel *in) {
+void NuPlayer2::notifyListener(
+        int64_t srcId, int msg, int ext1, int ext2, const PlayerMessage *in) {
     if (mDriver == NULL) {
         return;
     }
@@ -2616,15 +2617,15 @@
         // Modular DRM
         case Source::kWhatDrmInfo:
         {
-            Parcel parcel;
+            PlayerMessage playerMsg;
             sp<ABuffer> drmInfo;
             CHECK(msg->findBuffer("drmInfo", &drmInfo));
-            parcel.setData(drmInfo->data(), drmInfo->size());
+            playerMsg.ParseFromArray(drmInfo->data(), drmInfo->size());
 
-            ALOGV("onSourceNotify() kWhatDrmInfo MEDIA2_DRM_INFO drmInfo: %p  parcel size: %zu",
-                    drmInfo.get(), parcel.dataSize());
+            ALOGV("onSourceNotify() kWhatDrmInfo MEDIA2_DRM_INFO drmInfo: %p  playerMsg size: %d",
+                    drmInfo.get(), playerMsg.ByteSize());
 
-            notifyListener(srcId, MEDIA2_DRM_INFO, 0 /* ext1 */, 0 /* ext2 */, &parcel);
+            notifyListener(srcId, MEDIA2_DRM_INFO, 0 /* ext1 */, 0 /* ext2 */, &playerMsg);
 
             break;
         }
@@ -2845,28 +2846,24 @@
     CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
     CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
 
-    Parcel in;
-    in.writeInt32(trackIndex + baseIndex);
-    in.writeInt64(timeUs);
-    in.writeInt64(durationUs);
-    in.writeInt32(buffer->size());
-    in.writeInt32(buffer->size());
-    in.write(buffer->data(), buffer->size());
+    PlayerMessage playerMsg;
+    playerMsg.add_values()->set_int32_value(trackIndex + baseIndex);
+    playerMsg.add_values()->set_int64_value(timeUs);
+    playerMsg.add_values()->set_int64_value(durationUs);
+    playerMsg.add_values()->set_bytes_value(buffer->data(), buffer->size());
 
-    notifyListener(mSrcId, MEDIA2_SUBTITLE_DATA, 0, 0, &in);
+    notifyListener(mSrcId, MEDIA2_SUBTITLE_DATA, 0, 0, &playerMsg);
 }
 
 void NuPlayer2::sendTimedMetaData(const sp<ABuffer> &buffer) {
     int64_t timeUs;
     CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
 
-    Parcel in;
-    in.writeInt64(timeUs);
-    in.writeInt32(buffer->size());
-    in.writeInt32(buffer->size());
-    in.write(buffer->data(), buffer->size());
+    PlayerMessage playerMsg;
+    playerMsg.add_values()->set_int64_value(timeUs);
+    playerMsg.add_values()->set_bytes_value(buffer->data(), buffer->size());
 
-    notifyListener(mSrcId, MEDIA2_META_DATA, 0, 0, &in);
+    notifyListener(mSrcId, MEDIA2_META_DATA, 0, 0, &playerMsg);
 }
 
 void NuPlayer2::sendTimedTextData(const sp<ABuffer> &buffer) {
@@ -2896,7 +2893,8 @@
     }
 
     if ((parcel.dataSize() > 0)) {
-        notifyListener(mSrcId, MEDIA2_TIMED_TEXT, 0, 0, &parcel);
+        // TODO: convert text data to PlayerMessage
+        // notifyListener(mSrcId, MEDIA2_TIMED_TEXT, 0, 0, &parcel);
     } else {  // send an empty timed text
         notifyListener(mSrcId, MEDIA2_TIMED_TEXT, 0, 0);
     }
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2.h b/media/libmediaplayer2/nuplayer2/NuPlayer2.h
index c92d408..77845ac 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2.h
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2.h
@@ -296,7 +296,7 @@
             const sp<AMessage> &inputFormat,
             const sp<AMessage> &outputFormat = NULL);
 
-    void notifyListener(int64_t srcId, int msg, int ext1, int ext2, const Parcel *in = NULL);
+    void notifyListener(int64_t srcId, int msg, int ext1, int ext2, const PlayerMessage *in = NULL);
 
     void handleFlushComplete(bool audio, bool isDecoder);
     void finishFlushIfPossible();
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
index fd231a3..4d799b8 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
@@ -44,40 +44,39 @@
 
 namespace android {
 
-struct ParcelWrapper : public RefBase {
-    static sp<ParcelWrapper> Create(const Parcel *p) {
+struct PlayerMessageWrapper : public RefBase {
+    static sp<PlayerMessageWrapper> Create(const PlayerMessage *p) {
         if (p != NULL) {
-            sp<ParcelWrapper> pw = new ParcelWrapper();
-            if (pw->appendFrom(p) == OK) {
-                return pw;
-            }
+            sp<PlayerMessageWrapper> pw = new PlayerMessageWrapper();
+            pw->copyFrom(p);
+            return pw;
         }
         return NULL;
     }
 
-    const Parcel *getParcel() {
-        return mParcel;
+    const PlayerMessage *getPlayerMessage() {
+        return mPlayerMessage;
     }
 
 protected:
-    virtual ~ParcelWrapper() {
-        if (mParcel != NULL) {
-            delete mParcel;
+    virtual ~PlayerMessageWrapper() {
+        if (mPlayerMessage != NULL) {
+            delete mPlayerMessage;
         }
     }
 
 private:
-    ParcelWrapper()
-        : mParcel(NULL) { }
+    PlayerMessageWrapper()
+        : mPlayerMessage(NULL) { }
 
-    status_t appendFrom(const Parcel *p) {
-        if (mParcel == NULL) {
-            mParcel = new Parcel;
+    void copyFrom(const PlayerMessage *p) {
+        if (mPlayerMessage == NULL) {
+            mPlayerMessage = new PlayerMessage;
         }
-        return mParcel->appendFrom(p, 0 /* start */, p->dataSize());
+        mPlayerMessage->CopyFrom(*p);
     }
 
-    Parcel *mParcel;
+    PlayerMessage *mPlayerMessage;
 };
 
 // key for media statistics
@@ -828,12 +827,12 @@
             CHECK(msg->findInt32("messageId", &msgId));
             msg->findInt32("ext1", &ext1);
             msg->findInt32("ext2", &ext2);
-            sp<ParcelWrapper> in;
+            sp<PlayerMessageWrapper> in;
             sp<RefBase> obj;
-            if (msg->findObject("parcel", &obj) && obj != NULL) {
-                in = static_cast<ParcelWrapper *>(obj.get());
+            if (msg->findObject("obj", &obj) && obj != NULL) {
+                in = static_cast<PlayerMessageWrapper *>(obj.get());
             }
-            sendEvent(srcId, msgId, ext1, ext2, (in == NULL ? NULL : in->getParcel()));
+            sendEvent(srcId, msgId, ext1, ext2, (in == NULL ? NULL : in->getPlayerMessage()));
             break;
         }
         default:
@@ -842,16 +841,16 @@
 }
 
 void NuPlayer2Driver::notifyListener(
-        int64_t srcId, int msg, int ext1, int ext2, const Parcel *in) {
+        int64_t srcId, int msg, int ext1, int ext2, const PlayerMessage *in) {
     Mutex::Autolock autoLock(mLock);
     notifyListener_l(srcId, msg, ext1, ext2, in);
 }
 
 void NuPlayer2Driver::notifyListener_l(
-        int64_t srcId, int msg, int ext1, int ext2, const Parcel *in) {
+        int64_t srcId, int msg, int ext1, int ext2, const PlayerMessage *in) {
     ALOGD("notifyListener_l(%p), (%lld, %d, %d, %d, %d), loop setting(%d, %d)",
             this, (long long)srcId, msg, ext1, ext2,
-            (in == NULL ? -1 : (int)in->dataSize()), mAutoLoop, mLooping);
+            (in == NULL ? -1 : (int)in->ByteSize()), mAutoLoop, mLooping);
     if (srcId == mSrcId) {
         switch (msg) {
             case MEDIA2_PLAYBACK_COMPLETE:
@@ -918,7 +917,7 @@
     notify->setInt32("messageId", msg);
     notify->setInt32("ext1", ext1);
     notify->setInt32("ext2", ext2);
-    notify->setObject("parcel", ParcelWrapper::Create(in));
+    notify->setObject("obj", PlayerMessageWrapper::Create((PlayerMessage*)in));
     notify->post();
 }
 
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h
index 8dfcaa1..50ee173 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.h
@@ -78,7 +78,7 @@
     void notifyRebufferingWhenExit(int64_t srcId, bool status);
     void notifySeekComplete(int64_t srcId);
     void notifyListener(int64_t srcId, int msg, int ext1 = 0, int ext2 = 0,
-                        const Parcel *in = NULL);
+                        const PlayerMessage *in = NULL);
     void notifyFlagsChanged(int64_t srcId, uint32_t flags);
 
     // Modular DRM
@@ -145,7 +145,7 @@
 
     status_t start_l();
     void notifyListener_l(int64_t srcId, int msg, int ext1 = 0, int ext2 = 0,
-                          const Parcel *in = NULL);
+                          const PlayerMessage *in = NULL);
 
     DISALLOW_EVIL_CONSTRUCTORS(NuPlayer2Driver);
 };
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.cpp
index 4853ae1..57d1147 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.cpp
@@ -133,9 +133,8 @@
     return drmInfoBuffer;
 }
 
-sp<ABuffer> NuPlayer2Drm::retrieveDrmInfo(PsshInfo *psshInfo)
+status_t NuPlayer2Drm::retrieveDrmInfo(PsshInfo *psshInfo, PlayerMessage *playerMsg)
 {
-
     std::ostringstream pssh, drmInfo;
 
     // 0) Generate PSSH bytes
@@ -153,22 +152,20 @@
     ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  PSSH: size: %u %s", psshSize, psshHex);
 
     // 1) Write PSSH bytes
-    drmInfo.write(reinterpret_cast<const char *>(&psshSize), sizeof(psshSize));
-    drmInfo.write(reinterpret_cast<const char *>(pssh.str().c_str()), psshSize);
+    playerMsg->add_values()->set_bytes_value(
+            reinterpret_cast<const char *>(pssh.str().c_str()), psshSize);
 
     // 2) Write supportedDRMs
     uint32_t numentries = psshInfo->numentries;
-    drmInfo.write(reinterpret_cast<const char *>(&numentries), sizeof(numentries));
+    playerMsg->add_values()->set_int32_value(numentries);
     for (size_t i = 0; i < numentries; i++) {
         PsshEntry *entry = &psshInfo->entries[i];
-        drmInfo.write(reinterpret_cast<const char *>(&entry->uuid), sizeof(entry->uuid));
+        playerMsg->add_values()->set_bytes_value(
+                reinterpret_cast<const char *>(&entry->uuid), sizeof(entry->uuid));
         ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  supportedScheme[%zu] %s", i,
                 DrmUUID::arrayToHex((const uint8_t*)&entry->uuid, sizeof(AMediaUUID)).string());
     }
-
-    sp<ABuffer> drmInfoBuf = ABuffer::CreateAsCopy(drmInfo.str().c_str(), drmInfo.tellp());
-    drmInfoBuf->setRange(0, drmInfo.tellp());
-    return drmInfoBuf;
+    return OK;
 }
 
 }   // namespace android
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.h b/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.h
index 99d2415..968d1be 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.h
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Drm.h
@@ -23,6 +23,10 @@
 #include <utils/String8.h>
 #include <utils/Vector.h>
 
+#include "mediaplayer2.pb.h"
+
+using android::media::MediaPlayer2Proto::PlayerMessage;
+
 namespace android {
 
     struct DrmUUID {
@@ -80,7 +84,7 @@
 
     public:
         static sp<ABuffer> retrieveDrmInfo(const void *pssh, uint32_t psshsize);
-        static sp<ABuffer> retrieveDrmInfo(PsshInfo *);
+        static status_t retrieveDrmInfo(PsshInfo *, PlayerMessage *);
 
     };  // NuPlayer2Drm