MJPEG acceleration for V4L2

content/common/gpu/media/tegra_v4l2_device.cc

 // Copyright 2014 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 <dlfcn.h>
 #include <fcntl.h>
 #include <linux/videodev2.h>
 
 #include "base/lazy_instance.h"
 #include "base/posix/eintr_wrapper.h"
@@ skipping 134 matching lines @@
 
 bool TegraV4L2Device::Initialize() {
   const char* device_path = NULL;
   switch (type_) {
     case kDecoder:
       device_path = kDecoderDevice;
       break;
     case kEncoder:
       device_path = kEncoderDevice;
       break;
     case kImageProcessor:

[wuchengli, 2015/06/11 11:08:54]

Just change this to default.

[henryhsu, 2015/06/12 05:48:00]

Done.

       DVLOG(1) << "Device type " << type_ << " not supported on this platform";
       return false;
+    case kJpegDecoder:
+      DVLOG(1) << "Device type " << type_ << " not supported on this platform";
+      return false;
   }
 
   if (!g_tegra_function_symbol_finder_.Get().initialized()) {
     DLOG(ERROR) << "Unable to initialize functions";
     return false;
   }
   device_fd_ = HANDLE_EINTR(
       TegraV4L2_Open(device_path, O_RDWR | O_NONBLOCK | O_CLOEXEC));
   if (device_fd_ == -1) {
     DLOG(ERROR) << "Unable to open device " << device_path;
@@ skipping 46 matching lines @@
 GLenum TegraV4L2Device::GetTextureTarget() { return GL_TEXTURE_2D; }
 
 uint32 TegraV4L2Device::PreferredInputFormat() {
   // TODO(posciak): We should support "dontcare" returns here once we
   // implement proper handling (fallback, negotiation) for this in users.
   CHECK_EQ(type_, kEncoder);
   return V4L2_PIX_FMT_YUV420M;
 }
 
 }  //  namespace content