Merge "IOMX: allow configuration after going to loaded state" into nyc-mr1-dev
diff --git a/drm/mediadrm/plugins/clearkey/DrmFactory.cpp b/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
index 40275cf..d27956c 100644
--- a/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
+++ b/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
@@ -24,6 +24,7 @@
 
 #include "DrmPlugin.h"
 #include "ClearKeyUUID.h"
+#include "MimeType.h"
 #include "SessionLibrary.h"
 
 namespace clearkeydrm {
@@ -32,10 +33,14 @@
     return isClearKeyUUID(uuid);
 }
 
-bool DrmFactory::isContentTypeSupported(const android::String8 &initDataType) {
+bool DrmFactory::isContentTypeSupported(const android::String8 &type) {
     // This should match the types handed by InitDataParser.
-    return initDataType == "cenc" ||
-           initDataType == "webm";
+    return type == kIsoBmffVideoMimeType ||
+        type == kIsoBmffAudioMimeType ||
+        type == kCencInitDataFormat ||
+        type == kWebmVideoMimeType ||
+        type == kWebmAudioMimeType ||
+        type == kWebmInitDataFormat;
 }
 
 android::status_t DrmFactory::createDrmPlugin(
diff --git a/drm/mediadrm/plugins/clearkey/DrmFactory.h b/drm/mediadrm/plugins/clearkey/DrmFactory.h
index 164d3d0..87db982 100644
--- a/drm/mediadrm/plugins/clearkey/DrmFactory.h
+++ b/drm/mediadrm/plugins/clearkey/DrmFactory.h
@@ -32,7 +32,7 @@
 
     virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
 
-    virtual bool isContentTypeSupported(const android::String8 &initDataType);
+    virtual bool isContentTypeSupported(const android::String8 &mimeType);
 
     virtual android::status_t createDrmPlugin(
             const uint8_t uuid[16], android::DrmPlugin** plugin);
diff --git a/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp b/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp
index e5ee403..86bf047 100644
--- a/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp
+++ b/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp
@@ -46,7 +46,7 @@
 status_t DrmPlugin::getKeyRequest(
         const Vector<uint8_t>& scope,
         const Vector<uint8_t>& initData,
-        const String8& initDataType,
+        const String8& mimeType,
         KeyType keyType,
         const KeyedVector<String8, String8>& optionalParameters,
         Vector<uint8_t>& request,
@@ -62,7 +62,7 @@
     if (!session.get()) {
         return android::ERROR_DRM_SESSION_NOT_OPENED;
     }
-    return session->getKeyRequest(initData, initDataType, &request);
+    return session->getKeyRequest(initData, mimeType, &request);
 }
 
 status_t DrmPlugin::provideKeyResponse(
diff --git a/drm/mediadrm/plugins/clearkey/DrmPlugin.h b/drm/mediadrm/plugins/clearkey/DrmPlugin.h
index 9095045..efb9f8b 100644
--- a/drm/mediadrm/plugins/clearkey/DrmPlugin.h
+++ b/drm/mediadrm/plugins/clearkey/DrmPlugin.h
@@ -49,7 +49,7 @@
 
     virtual status_t getKeyRequest(
             const Vector<uint8_t>& scope,
-            const Vector<uint8_t>& initData,
+            const Vector<uint8_t>& mimeType,
             const String8& initDataType,
             KeyType keyType,
             const KeyedVector<String8, String8>& optionalParameters,
diff --git a/drm/mediadrm/plugins/clearkey/InitDataParser.cpp b/drm/mediadrm/plugins/clearkey/InitDataParser.cpp
index c22d73a..0216b8d 100644
--- a/drm/mediadrm/plugins/clearkey/InitDataParser.cpp
+++ b/drm/mediadrm/plugins/clearkey/InitDataParser.cpp
@@ -27,6 +27,7 @@
 #include "InitDataParser.h"
 
 #include "ClearKeyUUID.h"
+#include "MimeType.h"
 #include "Utils.h"
 
 namespace clearkeydrm {
@@ -41,16 +42,20 @@
 }
 
 android::status_t InitDataParser::parse(const Vector<uint8_t>& initData,
-        const String8& initDataType,
+        const String8& type,
         Vector<uint8_t>* licenseRequest) {
     // Build a list of the key IDs
     Vector<const uint8_t*> keyIds;
-    if (initDataType == "cenc") {
+    if (type == kIsoBmffVideoMimeType ||
+        type == kIsoBmffAudioMimeType ||
+        type == kCencInitDataFormat) {
         android::status_t res = parsePssh(initData, &keyIds);
         if (res != android::OK) {
             return res;
         }
-    } else if (initDataType == "webm") {
+    } else if (type == kWebmVideoMimeType ||
+        type == kWebmAudioMimeType ||
+        type == kWebmInitDataFormat) {
         // WebM "init data" is just a single key ID
         if (initData.size() != kKeyIdSize) {
             return android::ERROR_DRM_CANNOT_HANDLE;
diff --git a/drm/mediadrm/plugins/clearkey/InitDataParser.h b/drm/mediadrm/plugins/clearkey/InitDataParser.h
index 9505d2a..a9707bf 100644
--- a/drm/mediadrm/plugins/clearkey/InitDataParser.h
+++ b/drm/mediadrm/plugins/clearkey/InitDataParser.h
@@ -29,7 +29,7 @@
     InitDataParser() {}
 
     android::status_t parse(const android::Vector<uint8_t>& initData,
-            const android::String8& initDataType,
+            const android::String8& type,
             android::Vector<uint8_t>* licenseRequest);
 
 private:
diff --git a/drm/mediadrm/plugins/clearkey/MimeType.h b/drm/mediadrm/plugins/clearkey/MimeType.h
new file mode 100644
index 0000000..085f17a
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/MimeType.h
@@ -0,0 +1,15 @@
+#ifndef CLEARKEY_MIMETYPE_H_
+#define CLEARKEY_MIMETYPE_H_
+
+#include <utils/String8.h>
+
+namespace {
+    const android::String8 kCencInitDataFormat("cenc");
+    const android::String8 kIsoBmffAudioMimeType("audio/mp4");
+    const android::String8 kIsoBmffVideoMimeType("video/mp4");
+    const android::String8 kWebmInitDataFormat("webm");
+    const android::String8 kWebmAudioMimeType("audio/webm");
+    const android::String8 kWebmVideoMimeType("video/webm");
+}
+
+#endif // CLEARKEY_MIMETYPE_H_
diff --git a/drm/mediadrm/plugins/clearkey/Session.cpp b/drm/mediadrm/plugins/clearkey/Session.cpp
index 95016f5..d210f5e 100644
--- a/drm/mediadrm/plugins/clearkey/Session.cpp
+++ b/drm/mediadrm/plugins/clearkey/Session.cpp
@@ -36,10 +36,10 @@
 
 status_t Session::getKeyRequest(
         const Vector<uint8_t>& initData,
-        const String8& initDataType,
+        const String8& mimeType,
         Vector<uint8_t>* keyRequest) const {
     InitDataParser parser;
-    return parser.parse(initData, initDataType, keyRequest);
+    return parser.parse(initData, mimeType, keyRequest);
 }
 
 status_t Session::provideKeyResponse(const Vector<uint8_t>& response) {
diff --git a/drm/mediadrm/plugins/clearkey/Session.h b/drm/mediadrm/plugins/clearkey/Session.h
index cab0dc3..0933506 100644
--- a/drm/mediadrm/plugins/clearkey/Session.h
+++ b/drm/mediadrm/plugins/clearkey/Session.h
@@ -38,7 +38,7 @@
     const android::Vector<uint8_t>& sessionId() const { return mSessionId; }
 
     android::status_t getKeyRequest(
-            const android::Vector<uint8_t>& initData,
+            const android::Vector<uint8_t>& mimeType,
             const android::String8& initDataType,
             android::Vector<uint8_t>* keyRequest) const;
 
diff --git a/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp b/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp
index 4ba65ed..e275108 100644
--- a/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp
+++ b/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp
@@ -30,27 +30,27 @@
 
 namespace {
     const size_t kKeyIdSize = 16;
-    const String8 kCencType("cenc");
-    const String8 kWebMType("webm");
+    const String8 kCencMimeType("video/mp4");
+    const String8 kWebmMimeType("video/webm");
     const String8 kBase64Padding("=");
 }
 
 class InitDataParserTest : public ::testing::Test {
   protected:
     status_t attemptParse(const Vector<uint8_t>& initData,
-                          const String8& initDataType,
+                          const String8& mimeType,
                           Vector<uint8_t>* licenseRequest) {
         InitDataParser parser;
-        return parser.parse(initData, initDataType, licenseRequest);
+        return parser.parse(initData, mimeType, licenseRequest);
     }
 
     void attemptParseExpectingSuccess(const Vector<uint8_t>& initData,
-                                      const String8& initDataType,
+                                      const String8& mimeType,
                                       const Vector<String8>& expectedKeys) {
         const String8 kRequestPrefix("{\"kids\":[");
         const String8 kRequestSuffix("],\"type\":\"temporary\"}");
         Vector<uint8_t> request;
-        ASSERT_EQ(android::OK, attemptParse(initData, initDataType, &request));
+        ASSERT_EQ(android::OK, attemptParse(initData, mimeType, &request));
 
         String8 requestString(reinterpret_cast<const char*>(request.array()),
                               request.size());
@@ -68,9 +68,9 @@
     }
 
     void attemptParseExpectingFailure(const Vector<uint8_t>& initData,
-                                      const String8& initDataType) {
+                                      const String8& mimeType) {
         Vector<uint8_t> request;
-        ASSERT_NE(android::OK, attemptParse(initData, initDataType, &request));
+        ASSERT_NE(android::OK, attemptParse(initData, mimeType, &request));
         EXPECT_EQ(0, request.size());
     }
 };
@@ -93,7 +93,7 @@
     Vector<String8> expectedKeys;
     expectedKeys.push(String8("01234567890ABCDE"));
 
-    attemptParseExpectingSuccess(initData, kCencType, expectedKeys);
+    attemptParseExpectingSuccess(initData, kCencMimeType, expectedKeys);
 }
 
 TEST_F(InitDataParserTest, ParsesMultipleKeyPssh) {
@@ -120,7 +120,7 @@
     expectedKeys.push(String8("ClearKeyClearKey"));
     expectedKeys.push(String8(" GOOGLE  GOOGLE "));
 
-    attemptParseExpectingSuccess(initData, kCencType, expectedKeys);
+    attemptParseExpectingSuccess(initData, kCencMimeType, expectedKeys);
 }
 
 TEST_F(InitDataParserTest, ParsesWebM) {
@@ -134,7 +134,7 @@
     Vector<String8> expectedKeys;
     expectedKeys.push(String8("01234567890ABCDE"));
 
-    attemptParseExpectingSuccess(initData, kWebMType, expectedKeys);
+    attemptParseExpectingSuccess(initData, kWebmMimeType, expectedKeys);
 }
 
 TEST_F(InitDataParserTest, FailsForPsshTooSmall) {
@@ -147,7 +147,7 @@
     Vector<uint8_t> initData;
     initData.appendArray(pssh, 16);
 
-    attemptParseExpectingFailure(initData, kCencType);
+    attemptParseExpectingFailure(initData, kCencMimeType);
 }
 
 TEST_F(InitDataParserTest, FailsForWebMTooSmall) {
@@ -157,7 +157,7 @@
     Vector<uint8_t> initData;
     initData.appendArray(initDataRaw, 8);
 
-    attemptParseExpectingFailure(initData, kWebMType);
+    attemptParseExpectingFailure(initData, kWebmMimeType);
 }
 
 TEST_F(InitDataParserTest, FailsForPsshBadSystemId) {
@@ -175,7 +175,7 @@
     Vector<uint8_t> initData;
     initData.appendArray(pssh, 52);
 
-    attemptParseExpectingFailure(initData, kCencType);
+    attemptParseExpectingFailure(initData, kCencMimeType);
 }
 
 TEST_F(InitDataParserTest, FailsForPsshBadSize) {
@@ -193,7 +193,7 @@
     Vector<uint8_t> initData;
     initData.appendArray(pssh, 52);
 
-    attemptParseExpectingFailure(initData, kCencType);
+    attemptParseExpectingFailure(initData, kCencMimeType);
 }
 
 TEST_F(InitDataParserTest, FailsForPsshWrongVersion) {
@@ -211,7 +211,7 @@
     Vector<uint8_t> initData;
     initData.appendArray(pssh, 52);
 
-    attemptParseExpectingFailure(initData, kCencType);
+    attemptParseExpectingFailure(initData, kCencMimeType);
 }
 
 TEST_F(InitDataParserTest, FailsForPsshBadKeyCount) {
@@ -229,7 +229,7 @@
     Vector<uint8_t> initData;
     initData.appendArray(pssh, 52);
 
-    attemptParseExpectingFailure(initData, kCencType);
+    attemptParseExpectingFailure(initData, kCencMimeType);
 }
 
 }  // namespace clearkeydrm
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h
index ffdb9b5..7becf57 100644
--- a/include/private/media/AudioTrackShared.h
+++ b/include/private/media/AudioTrackShared.h
@@ -522,6 +522,12 @@
         mTimestampMutator.push(timestamp);
     }
 
+    // Flushes the shared ring buffer if the client had requested it using mStreaming.mFlush.
+    // If flush occurs then:
+    //   cblk->u.mStreaming.mFront, ServerProxy::mFlush and ServerProxy::mFlushed will be modified
+    //   client will be notified via Futex
+    virtual void    flushBufferIfNeeded();
+
     // Total count of the number of flushed frames since creation (never reset).
     virtual int64_t     framesFlushed() const { return mFlushed; }
 
diff --git a/media/libmedia/AudioTrackShared.cpp b/media/libmedia/AudioTrackShared.cpp
index 7119517..846f8b8 100644
--- a/media/libmedia/AudioTrackShared.cpp
+++ b/media/libmedia/AudioTrackShared.cpp
@@ -622,6 +622,56 @@
 }
 
 __attribute__((no_sanitize("integer")))
+void ServerProxy::flushBufferIfNeeded()
+{
+    audio_track_cblk_t* cblk = mCblk;
+    // The acquire_load is not really required. But since the write is a release_store in the
+    // client, using acquire_load here makes it easier for people to maintain the code,
+    // and the logic for communicating ipc variables seems somewhat standard,
+    // and there really isn't much penalty for 4 or 8 byte atomics.
+    int32_t flush = android_atomic_acquire_load(&cblk->u.mStreaming.mFlush);
+    if (flush != mFlush) {
+        ALOGV("ServerProxy::flushBufferIfNeeded() mStreaming.mFlush = 0x%x, mFlush = 0x%0x",
+                flush, mFlush);
+        int32_t rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
+        int32_t front = cblk->u.mStreaming.mFront;
+
+        // effectively obtain then release whatever is in the buffer
+        const size_t overflowBit = mFrameCountP2 << 1;
+        const size_t mask = overflowBit - 1;
+        int32_t newFront = (front & ~mask) | (flush & mask);
+        ssize_t filled = rear - newFront;
+        if (filled >= (ssize_t)overflowBit) {
+            // front and rear offsets span the overflow bit of the p2 mask
+            // so rebasing newFront on the front offset is off by the overflow bit.
+            // adjust newFront to match rear offset.
+            ALOGV("flush wrap: filled %zx >= overflowBit %zx", filled, overflowBit);
+            newFront += overflowBit;
+            filled -= overflowBit;
+        }
+        // Rather than shutting down on a corrupt flush, just treat it as a full flush
+        if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
+            ALOGE("mFlush %#x -> %#x, front %#x, rear %#x, mask %#x, newFront %#x, "
+                    "filled %zd=%#x",
+                    mFlush, flush, front, rear,
+                    (unsigned)mask, newFront, filled, (unsigned)filled);
+            newFront = rear;
+        }
+        mFlush = flush;
+        android_atomic_release_store(newFront, &cblk->u.mStreaming.mFront);
+        // There is no danger from a false positive, so err on the side of caution
+        if (true /*front != newFront*/) {
+            int32_t old = android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
+            if (!(old & CBLK_FUTEX_WAKE)) {
+                (void) syscall(__NR_futex, &cblk->mFutex,
+                        mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE, 1);
+            }
+        }
+        mFlushed += (newFront - front) & mask;
+    }
+}
+
+__attribute__((no_sanitize("integer")))
 status_t ServerProxy::obtainBuffer(Buffer* buffer, bool ackFlush)
 {
     LOG_ALWAYS_FATAL_IF(buffer == NULL || buffer->mFrameCount == 0);
@@ -636,44 +686,9 @@
     int32_t rear;
     // See notes on barriers at ClientProxy::obtainBuffer()
     if (mIsOut) {
-        int32_t flush = cblk->u.mStreaming.mFlush;
+        flushBufferIfNeeded(); // might modify mFront
         rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
         front = cblk->u.mStreaming.mFront;
-        if (flush != mFlush) {
-            // effectively obtain then release whatever is in the buffer
-            const size_t overflowBit = mFrameCountP2 << 1;
-            const size_t mask = overflowBit - 1;
-            int32_t newFront = (front & ~mask) | (flush & mask);
-            ssize_t filled = rear - newFront;
-            if (filled >= (ssize_t)overflowBit) {
-                // front and rear offsets span the overflow bit of the p2 mask
-                // so rebasing newFront on the front offset is off by the overflow bit.
-                // adjust newFront to match rear offset.
-                ALOGV("flush wrap: filled %zx >= overflowBit %zx", filled, overflowBit);
-                newFront += overflowBit;
-                filled -= overflowBit;
-            }
-            // Rather than shutting down on a corrupt flush, just treat it as a full flush
-            if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
-                ALOGE("mFlush %#x -> %#x, front %#x, rear %#x, mask %#x, newFront %#x, "
-                        "filled %zd=%#x",
-                        mFlush, flush, front, rear,
-                        (unsigned)mask, newFront, filled, (unsigned)filled);
-                newFront = rear;
-            }
-            mFlush = flush;
-            android_atomic_release_store(newFront, &cblk->u.mStreaming.mFront);
-            // There is no danger from a false positive, so err on the side of caution
-            if (true /*front != newFront*/) {
-                int32_t old = android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
-                if (!(old & CBLK_FUTEX_WAKE)) {
-                    (void) syscall(__NR_futex, &cblk->mFutex,
-                            mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE, 1);
-                }
-            }
-            mFlushed += (newFront - front) & mask;
-            front = newFront;
-        }
     } else {
         front = android_atomic_acquire_load(&cblk->u.mStreaming.mFront);
         rear = cblk->u.mStreaming.mRear;
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index b387af3..3cca054 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -777,6 +777,13 @@
         Mutex::Autolock _l(thread->mLock);
         PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
 
+        // Flush the ring buffer now if the track is not active in the PlaybackThread.
+        // Otherwise the flush would not be done until the track is resumed.
+        // Requires FastTrack removal be BLOCK_UNTIL_ACKED
+        if (playbackThread->mActiveTracks.indexOf(this) < 0) {
+            (void)mServerProxy->flushBufferIfNeeded();
+        }
+
         if (isOffloaded()) {
             // If offloaded we allow flush during any state except terminated
             // and keep the track active to avoid problems if user is seeking
@@ -828,6 +835,10 @@
     if (!isOffloaded() && !isDirect())
         return;
 
+    // Clear the client ring buffer so that the app can prime the buffer while paused.
+    // Otherwise it might not get cleared until playback is resumed and obtainBuffer() is called.
+    mServerProxy->flushBufferIfNeeded();
+
     mFlushHwPending = false;
 }