CCodec: reduce log amount for render warning

Bug: 124096926
Test: builds
Change-Id: I7fd7bd0da8e32793f87c0c8278c208d1b4d5bbb2

media/codec2/sfplugin/CCodecBufferChannel.cpp

@@ -1917,10 +1917,12 @@ status_t CCodecBufferChannel::renderOutputBuffer(
     feedInputBufferIfAvailable();
     if (!c2Buffer) {
         if (released) {
-            ALOGD("[%s] The app is calling releaseOutputBuffer() with "
-                  "timestamp or render=true with non-video buffers. Apps should "
-                  "call releaseOutputBuffer() with render=false for those.",
-                  mName);
+            std::call_once(mRenderWarningFlag, [this] {
+                ALOGW("[%s] The app is calling releaseOutputBuffer() with "
+                      "timestamp or render=true with non-video buffers. Apps should "
+                      "call releaseOutputBuffer() with render=false for those.",
+                      mName);
+            });
         }
         return INVALID_OPERATION;
     }

media/codec2/sfplugin/CCodecBufferChannel.h

@@ -311,6 +311,7 @@ private:
     Mutexed<ReorderStash> mReorderStash;
 
     std::atomic_bool mInputMetEos;
+    std::once_flag mRenderWarningFlag;
 
     inline bool hasCryptoOrDescrambler() {
         return mCrypto != nullptr || mDescrambler != nullptr;