libstagefright: Enable meta mode for 7x27a video encoder

msm7627a family of chipsets supports only one input frame at
one time. camera expects the input frame to be released before
sending another frame. so send one input buffer and available
output bufefrs to video encoder component. Release the input
buffer to camera (to get another frame) after receiving input
frame done callback from video encoder component.

Change-Id: I8fbc911f046ff7e2a3047dd65d8c09ac2d8608e1

media/libmediaplayerservice/StagefrightRecorder.cpp

@@ -1614,8 +1614,18 @@ status_t StagefrightRecorder::setupVideoEncoder(
     CHECK_EQ(client.connect(), (status_t)OK);
 
     uint32_t encoder_flags = 0;
+#ifdef QCOM_HARDWARE
+    char value[PROPERTY_VALUE_MAX];
+#endif
     if (mIsMetaDataStoredInVideoBuffers) {
         encoder_flags |= OMXCodec::kStoreMetaDataInVideoBuffers;
+#ifdef QCOM_HARDWARE
+        if (property_get("ro.board.platform", value, "0")
+            && (!strncmp(value, "msm7x27a", sizeof("msm7x27a") - 1))) {
+            ALOGW("msm7627 family of chipsets supports, only one buffer at a time");
+            encoder_flags |= OMXCodec::kOnlySubmitOneInputBufferAtOneTime;
+        }
+#endif
     }
 
     // Do not wait for all the input buffers to become available.