ppapi: implement PPB_AudioEncoder

ppapi/tests/test_audio_encoder.cc

Index: ppapi/tests/test_audio_encoder.cc
diff --git a/ppapi/tests/test_audio_encoder.cc b/ppapi/tests/test_audio_encoder.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c2a3a7f211969698117138dba9c33ea34255f84d
--- /dev/null
+++ b/ppapi/tests/test_audio_encoder.cc
@@ -0,0 +1,142 @@
+// Copyright 2015 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_audio_encoder.h"
+
+#include "ppapi/c/pp_codecs.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/cpp/audio_encoder.h"
+#include "ppapi/tests/testing_instance.h"
+
+REGISTER_TEST_CASE(AudioEncoder);
+
+bool TestAudioEncoder::Init() {
+  audio_encoder_interface_ = static_cast<const PPB_AudioEncoder_0_1*>(
+      pp::Module::Get()->GetBrowserInterface(PPB_AUDIOENCODER_INTERFACE_0_1));
+  return audio_encoder_interface_ && CheckTestingInterface();
+}
+
+void TestAudioEncoder::RunTests(const std::string& filter) {
+  RUN_CALLBACK_TEST(TestAudioEncoder, AvailableCodecs, filter);
+  RUN_CALLBACK_TEST(TestAudioEncoder, IncorrectParametersFails, filter);
+  RUN_CALLBACK_TEST(TestAudioEncoder, InitializeTwiceFails, filter);
+  RUN_CALLBACK_TEST(TestAudioEncoder, InitializeOpusMono, filter);
+}
+
+std::string TestAudioEncoder::TestAvailableCodecs() {
+  // Test that we get results for supported formats. We should at
+  // least get the software supported formats.
+  pp::AudioEncoder audio_encoder(instance_);
+  ASSERT_FALSE(audio_encoder.is_null());
+
+  TestCompletionCallbackWithOutput<std::vector<PP_AudioProfileDescription>>
+      callback(instance_->pp_instance(), false);
+  callback.WaitForResult(
+      audio_encoder.GetSupportedProfiles(callback.GetCallback()));
+  ASSERT_GE(callback.result(), 1U);
+
+  const std::vector<PP_AudioProfileDescription> audio_profiles =
+      callback.output();
+  ASSERT_GE(audio_profiles.size(), 1U);
+
+  bool found_opus_48hz = false;
+  for (uint32_t i = 0; i < audio_profiles.size(); ++i) {
+    const PP_AudioProfileDescription& description = audio_profiles[i];
+    if (description.profile == PP_AUDIOPROFILE_OPUS &&
+        description.sample_rate == PP_AUDIOBUFFER_SAMPLERATE_48000 &&
+        description.max_channels >= 2)
+      found_opus_48hz = true;
+  }
+  ASSERT_TRUE(found_opus_48hz);
+
+  PASS();
+}
+
+std::string TestAudioEncoder::TestIncorrectParametersFails() {
+  // Test that initializing the encoder with incorrect size fails.
+  pp::AudioEncoder audio_encoder(instance_);
+  ASSERT_FALSE(audio_encoder.is_null());
+
+  // Invalid number of channels.
+  TestCompletionCallback callback(instance_->pp_instance(), false);
+  callback.WaitForResult(audio_encoder.Initialize(
+      42, static_cast<PP_AudioBuffer_SampleRate>(48000),
+      static_cast<PP_AudioBuffer_SampleSize>(2), PP_AUDIOPROFILE_OPUS, 10000,
+      PP_HARDWAREACCELERATION_WITHFALLBACK, callback.GetCallback()));
+  ASSERT_EQ(PP_ERROR_NOTSUPPORTED, callback.result());
+
+  // Invalid sampling rate.
+  callback.WaitForResult(audio_encoder.Initialize(
+      2, static_cast<PP_AudioBuffer_SampleRate>(123456),
+      static_cast<PP_AudioBuffer_SampleSize>(2), PP_AUDIOPROFILE_OPUS, 10000,
+      PP_HARDWAREACCELERATION_WITHFALLBACK, callback.GetCallback()));
+  ASSERT_EQ(PP_ERROR_NOTSUPPORTED, callback.result());
+
+  // Invalid sample size.
+  callback.WaitForResult(audio_encoder.Initialize(
+      2, static_cast<PP_AudioBuffer_SampleRate>(48000),
+      static_cast<PP_AudioBuffer_SampleSize>(72), PP_AUDIOPROFILE_OPUS, 10000,
+      PP_HARDWAREACCELERATION_WITHFALLBACK, callback.GetCallback()));
+  ASSERT_EQ(PP_ERROR_NOTSUPPORTED, callback.result());
+
+  PASS();
+}
+
+std::string TestAudioEncoder::TestInitializeTwiceFails() {
+  // Test that initializing the encoder with incorrect size fails.
+  pp::AudioEncoder audio_encoder(instance_);
+  ASSERT_FALSE(audio_encoder.is_null());
+
+  TestCompletionCallback callback(instance_->pp_instance(), false);
+  callback.WaitForResult(audio_encoder.Initialize(
+      2, PP_AUDIOBUFFER_SAMPLERATE_48000, PP_AUDIOBUFFER_SAMPLESIZE_16_BITS,
+      PP_AUDIOPROFILE_OPUS, 10000, PP_HARDWAREACCELERATION_WITHFALLBACK,
+      callback.GetCallback()));
+  ASSERT_EQ(PP_OK, callback.result());
+
+  callback.WaitForResult(audio_encoder.Initialize(
+      2, PP_AUDIOBUFFER_SAMPLERATE_48000, PP_AUDIOBUFFER_SAMPLESIZE_16_BITS,
+      PP_AUDIOPROFILE_OPUS, 10000, PP_HARDWAREACCELERATION_WITHFALLBACK,
+      callback.GetCallback()));
+  ASSERT_EQ(PP_ERROR_FAILED, callback.result());
+
+  PASS();
+}
+
+std::string TestAudioEncoder::TestInitializeOpusMono() {
+  return TestInitializeCodec(1, PP_AUDIOBUFFER_SAMPLERATE_48000,
+                             PP_AUDIOBUFFER_SAMPLESIZE_16_BITS,
+                             PP_AUDIOPROFILE_OPUS);
+}
+
+std::string TestAudioEncoder::TestInitializeOpusStereo() {
+  return TestInitializeCodec(2, PP_AUDIOBUFFER_SAMPLERATE_48000,
+                             PP_AUDIOBUFFER_SAMPLESIZE_16_BITS,
+                             PP_AUDIOPROFILE_OPUS);
+}
+
+std::string TestAudioEncoder::TestInitializeCodec(
+    uint32_t channels,
+    PP_AudioBuffer_SampleRate input_sample_rate,
+    PP_AudioBuffer_SampleSize input_sample_size,
+    PP_AudioProfile output_profile) {
+  pp::AudioEncoder audio_encoder(instance_);
+  ASSERT_FALSE(audio_encoder.is_null());
+  pp::Size audio_size(640, 480);
+
+  TestCompletionCallback callback(instance_->pp_instance(), false);
+  callback.WaitForResult(audio_encoder.Initialize(
+      channels, input_sample_rate, input_sample_size, output_profile, 10000,
+      PP_HARDWAREACCELERATION_WITHFALLBACK, callback.GetCallback()));
+  ASSERT_EQ(PP_OK, callback.result());
+
+  ASSERT_GE(audio_encoder.GetNumberOfSamples(), 2U);
+
+  TestCompletionCallbackWithOutput<pp::AudioBuffer> get_buffer(
+      instance_->pp_instance(), false);
+  get_buffer.WaitForResult(audio_encoder.GetBuffer(get_buffer.GetCallback()));
+  ASSERT_EQ(PP_OK, get_buffer.result());
+
+  PASS();
+}