Enable Accelerated Video Decode in Linux

content/common/sandbox_linux/bpf_gpu_policy_linux.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 "content/common/sandbox_linux/bpf_gpu_policy_linux.h"
 
 #include <dlfcn.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/socket.h>
@@ skipping 286 matching lines @@
 
   if (IsArchitectureX86_64() || IsArchitectureI386()) {
     // Accelerated video dlopen()'s some shared objects
     // inside the sandbox, so preload them now.
     if (IsAcceleratedVaapiVideoEncodeEnabled() ||
         IsAcceleratedVideoDecodeEnabled()) {
       const char* I965DrvVideoPath = NULL;
       const char* I965HybridDrvVideoPath = NULL;
 
       if (IsArchitectureX86_64()) {
+#if defined(OS_CHROMEOS)

[Jorge Lucangeli Obes, 2016/02/26 18:02:44]

Use the "IsChromeOS" function here.

[dshwang, 2016/02/26 18:15:34]

Done.

         I965DrvVideoPath = "/usr/lib64/va/drivers/i965_drv_video.so";
         I965HybridDrvVideoPath = "/usr/lib64/va/drivers/hybrid_drv_video.so";
+#else
+        I965DrvVideoPath = "/usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so";

[Jorge Lucangeli Obes, 2016/02/26 18:02:44]

Is this path guaranteed to be correct?

[dshwang, 2016/02/26 18:15:34]

no, it depends on linux distribution.

I have next plan to find this path in build time using python script.
If you want, I add the script in this CL.

[Jorge Lucangeli Obes, 2016/02/26 18:19:31]

I don't have a preference, just pointing out that the only reason why we were
hardcoding paths here is because we were dealing with Chrome OS.

[dshwang, 2016/02/26 18:34:59]

Added TODO comment. The script will cover ChromeOS also.

+#endif
       } else if (IsArchitectureI386()) {
         I965DrvVideoPath = "/usr/lib/va/drivers/i965_drv_video.so";
       }
 
       dlopen(I965DrvVideoPath, RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE);
       if (I965HybridDrvVideoPath)
         dlopen(I965HybridDrvVideoPath, RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE);
       dlopen("libva.so.1", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE);
 #if defined(USE_OZONE)
       dlopen("libva-drm.so.1", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE);
@@ skipping 38 matching lines @@
   }
 
   broker_process_ = new BrokerProcess(GetFSDeniedErrno(), permissions);
   // The initialization callback will perform generic initialization and then
   // call broker_sandboxer_callback.
   CHECK(broker_process_->Init(base::Bind(&UpdateProcessTypeAndEnableSandbox,
                                          broker_sandboxer_allocator)));
 }
 
 }  // namespace content