Enable pcm_s32le audio decoding.

media/test/pipeline_integration_test.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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "base/strings/string_split.h"
@@ skipping 891 matching lines @@
 
   EXPECT_HASH_EQ("f0be120a90a811506777c99a2cdf7cc1", GetVideoHash());
   EXPECT_HASH_EQ("-3.59,-2.06,-0.43,2.15,0.77,-0.95,", GetAudioHash());
 
   // TODO: Fix FFmpeg code to return higher resolution time values so
   // we don't have to truncate our expectations here.
   EXPECT_EQ(TruncateToFFmpegTimeResolution(kLiveTimelineOffset()),
             demuxer_->GetTimelineOffset());
 }
 
+TEST_F(PipelineIntegrationTest, S32PlaybackHashed) {
+  ASSERT_EQ(PIPELINE_OK, Start("sfx_s32le.wav", kHashed));
+  Play();
+  ASSERT_TRUE(WaitUntilOnEnded());
+  EXPECT_HASH_EQ(std::string(kNullVideoHash), GetVideoHash());
+  EXPECT_HASH_EQ("3.03,2.86,2.99,3.31,3.57,4.06,", GetAudioHash());
+}
+
 TEST_F(PipelineIntegrationTest, F32PlaybackHashed) {
   ASSERT_EQ(PIPELINE_OK, Start("sfx_f32le.wav", kHashed));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
   EXPECT_HASH_EQ(std::string(kNullVideoHash), GetVideoHash());
   EXPECT_HASH_EQ("3.03,2.86,2.99,3.31,3.57,4.06,", GetAudioHash());
 }
 
 #if !defined(DISABLE_EME_TESTS)
 TEST_F(PipelineIntegrationTest, BasicPlaybackEncrypted) {
@@ skipping 912 matching lines @@
 
 TEST_F(PipelineIntegrationTest, BasicPlaybackPositiveStartTime) {
   ASSERT_EQ(PIPELINE_OK, Start("nonzero-start-time.webm"));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
   ASSERT_EQ(base::TimeDelta::FromMicroseconds(396000),
             demuxer_->GetStartTime());
 }
 
 }  // namespace media