stagefright: Do not add silence data for compress offload

Bug: 16683770
Bug: 17035257
Change-Id: I7aef543c47214cc2854d143167b02f1603cf8bea
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index a706987..2c48306 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -1898,7 +1898,8 @@
                 me, buffer->raw, buffer->size, me->mCallbackCookie,
                 CB_EVENT_FILL_BUFFER);
 
-        if (actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) {
+        if ((me->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0 &&
+            actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) {
             // We've reached EOS but the audio track is not stopped yet,
             // keep playing silence.