Implement software fallback for PPB_VideoDecoder.

ppapi/tests/test_video_decoder.cc

+// Copyright (c) 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 "ppapi/tests/test_video_decoder.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/cpp/graphics_3d.h"
+#include "ppapi/cpp/video_decoder.h"
+#include "ppapi/tests/testing_instance.h"
+
+REGISTER_TEST_CASE(VideoDecoder);
+
+static const bool kAllowSoftwareFallback = true;
+
+bool TestVideoDecoder::Init() {
+  video_decoder_interface_ = static_cast<const PPB_VideoDecoder_0_1*>(
+      pp::Module::Get()->GetBrowserInterface(PPB_VIDEODECODER_INTERFACE_0_1));
+  return video_decoder_interface_ && CheckTestingInterface();
+}
+
+void TestVideoDecoder::RunTests(const std::string& filter) {
+  RUN_CALLBACK_TEST(TestVideoDecoder, Create, filter);
+}
+
+std::string TestVideoDecoder::TestCreate() {
+  // Test that Initialize fails with a bad Graphics3D resource.
+  {
+    pp::VideoDecoder video_decoder(instance_);
+    ASSERT_FALSE(video_decoder.is_null());
+
+    TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+    pp::Graphics3D context;  // null context
+    callback.WaitForResult(video_decoder.Initialize(context,
+                                                    PP_VIDEOPROFILE_VP8MAIN,
+                                                    kAllowSoftwareFallback,
+                                                    callback.GetCallback()));
+    ASSERT_EQ(PP_ERROR_BADRESOURCE, callback.result());
+  }
+  // Test that Initialize fails with a bad profile enum value.
+  {
+    pp::VideoDecoder video_decoder(instance_);
+    TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+    const int width = 16;
+    const int height = 16;
+    const int32_t attribs[] = {PP_GRAPHICS3DATTRIB_WIDTH, width,
+                               PP_GRAPHICS3DATTRIB_HEIGHT, height,
+                               PP_GRAPHICS3DATTRIB_NONE};
+    pp::Graphics3D context(instance_, attribs);
+    const PP_VideoProfile kInvalidProfile = static_cast<PP_VideoProfile>(-1);
+    callback.WaitForResult(video_decoder.Initialize(context,
+                                                    kInvalidProfile,
+                                                    kAllowSoftwareFallback,
+                                                    callback.GetCallback()));
+    ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result());
+  }
+  // Test that Initialize succeeds when we allow software fallback to VP8.
+  // Accept PP_ERROR_NOTSUPPORTED since some platforms may not support VP8.

[Ami GONE FROM CHROMIUM, 2014/06/06 17:14:33]

how's that?
(all shipping chromes support VP8 except for possibly Chrome/iOS but that
doesn't support pepper either, so irrelevant for this test, right?)

[bbudge, 2014/06/07 00:31:08]

I did this because the Create success test was failing on some bots.
Unfortunately, my latest try runs fail compile because the testdata.h file
doesn't appear to get uploaded and compile fails, so I can't confirm that this
fixes it. Could it be that some chromium builds don't support VP8?

Here's a sample failing log:
http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_x64_rel/...

+  {
+    pp::VideoDecoder video_decoder(instance_);
+    TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+    const int width = 16;
+    const int height = 16;
+    const int32_t attribs[] = {PP_GRAPHICS3DATTRIB_WIDTH, width,
+                               PP_GRAPHICS3DATTRIB_HEIGHT, height,
+                               PP_GRAPHICS3DATTRIB_NONE};
+    pp::Graphics3D context(instance_, attribs);
+    callback.WaitForResult(video_decoder.Initialize(context,
+                                                    PP_VIDEOPROFILE_VP8MAIN,
+                                                    kAllowSoftwareFallback,
+                                                    callback.GetCallback()));
+    ASSERT_TRUE(callback.result() == PP_OK ||
+                callback.result() == PP_ERROR_NOTSUPPORTED);
+  }
+
+  PASS();
+}