Queue more input buffers and process more output if possible.

media/gpu/android_video_decode_accelerator.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/gpu/android_video_decode_accelerator.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 489 matching lines @@
 #endif  // !defined(ENABLE_MOJO_MEDIA_IN_GPU_PROCESS)
 }
 
 void AndroidVideoDecodeAccelerator::DoIOTask(bool start_timer) {
   DCHECK(thread_checker_.CalledOnValidThread());
   TRACE_EVENT0("media", "AVDA::DoIOTask");
   if (state_ == ERROR || state_ == WAITING_FOR_CODEC)
     return;
 
   strategy_->MaybeRenderEarly();
-  bool did_work = QueueInput();
-  while (DequeueOutput())
-    did_work = true;
+  bool did_work = false, did_input = false, did_output = false;
+  do {
+    did_input = QueueInput();
+    did_output = DequeueOutput();
+    if (did_input || did_output)
+      did_work = true;
+  } while (did_input || did_output);
 
   ManageTimer(did_work || start_timer);
 }
 
 bool AndroidVideoDecodeAccelerator::QueueInput() {
   DCHECK(thread_checker_.CalledOnValidThread());
   TRACE_EVENT0("media", "AVDA::QueueInput");
   base::AutoReset<bool> auto_reset(&defer_errors_, true);
   if (bitstreams_notified_in_advance_.size() > kMaxBitstreamsNotifiedInAdvance)
     return false;
@@ skipping 935 matching lines @@
     if (media::MediaCodecUtil::IsSurfaceViewOutputSupported()) {
       capabilities.flags |= media::VideoDecodeAccelerator::Capabilities::
           SUPPORTS_EXTERNAL_OUTPUT_SURFACE;
     }
   }
 
   return capabilities;
 }
 
 }  // namespace media