OMX: Increase the number of picture buffers.

content/common/gpu/media/omx_video_decode_accelerator.cc

 // Copyright (c) 2012 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 "content/common/gpu/media/omx_video_decode_accelerator.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/media/gles2_texture_to_egl_image_translator.h"
 #include "media/base/bitstream_buffer.h"
 #include "media/video/picture.h"
 
 // Helper typedef for input buffers.  This is used as the pAppPrivate field of
 // OMX_BUFFERHEADERTYPEs of input buffers, to point to the data associated with
 // them.
 typedef std::pair<scoped_ptr<base::SharedMemory>, int32> SharedMemoryAndId;
 
-enum { kNumPictureBuffers = 4 };
+enum { kNumPictureBuffers = 8 };
 
 void* omx_handle = NULL;
 
 typedef OMX_ERRORTYPE (*OMXInit)();
 typedef OMX_ERRORTYPE (*OMXGetHandle)(
     OMX_HANDLETYPE*, OMX_STRING, OMX_PTR, OMX_CALLBACKTYPE*);
 typedef OMX_ERRORTYPE (*OMXGetComponentsOfRole)(OMX_STRING, OMX_U32*, OMX_U8**);
 typedef OMX_ERRORTYPE (*OMXFreeHandle)(OMX_HANDLETYPE);
 typedef OMX_ERRORTYPE (*OMXDeinit)();
 
@@ skipping 1096 matching lines @@
 
 bool OmxVideoDecodeAccelerator::SendCommandToPort(
     OMX_COMMANDTYPE cmd, int port_index) {
   DCHECK_EQ(message_loop_, MessageLoop::current());
   OMX_ERRORTYPE result = OMX_SendCommand(component_handle_,
                                          cmd, port_index, 0);
   RETURN_ON_OMX_FAILURE(result, "SendCommand() failed" << cmd,
                         PLATFORM_FAILURE, false);
   return true;
 }