media/filters/ffmpeg_glue_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/logging.h"
   6 #include "base/memory/scoped_ptr.h"
   7 #include "media/base/mock_filters.h"
   8 #include "media/base/test_data_util.h"
   9 #include "media/ffmpeg/ffmpeg_common.h"
  10 #include "media/filters/ffmpeg_glue.h"
  11 #include "media/filters/in_memory_url_protocol.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 using ::testing::_;
  15 using ::testing::DoAll;
  16 using ::testing::InSequence;
  17 using ::testing::Return;
  18 using ::testing::SetArgumentPointee;
  19 using ::testing::StrictMock;
  20
  21 namespace media {
  22
  23 class MockProtocol : public FFmpegURLProtocol {
  24  public:
  25   MockProtocol() {}
  26
  27   MOCK_METHOD2(Read, int(int size, uint8* data));
  28   MOCK_METHOD1(GetPosition, bool(int64* position_out));
  29   MOCK_METHOD1(SetPosition, bool(int64 position));
  30   MOCK_METHOD1(GetSize, bool(int64* size_out));
  31   MOCK_METHOD0(IsStreaming, bool());
  32
  33  private:
  34   DISALLOW_COPY_AND_ASSIGN(MockProtocol);
  35 };
  36
  37 class FFmpegGlueTest : public ::testing::Test {
  38  public:
  39   FFmpegGlueTest()
  40       : protocol_(new StrictMock<MockProtocol>()) {
  41     // IsStreaming() is called when opening.
  42     EXPECT_CALL(*protocol_.get(), IsStreaming()).WillOnce(Return(true));
  43     glue_.reset(new FFmpegGlue(protocol_.get()));
  44     CHECK(glue_->format_context());
  45     CHECK(glue_->format_context()->pb);
  46   }
  47
  48   virtual ~FFmpegGlueTest() {
  49     // Ensure |glue_| and |protocol_| are still alive.
  50     CHECK(glue_.get());
  51     CHECK(protocol_.get());
  52
  53     // |protocol_| should outlive |glue_|, so ensure it's destructed first.
  54     glue_.reset();
  55   }
  56
  57   int ReadPacket(int size, uint8* data) {
  58     return glue_->format_context()->pb->read_packet(
  59         protocol_.get(), data, size);
  60   }
  61
  62   int64 Seek(int64 offset, int whence) {
  63     return glue_->format_context()->pb->seek(protocol_.get(), offset, whence);
  64   }
  65
  66  protected:
  67   scoped_ptr<FFmpegGlue> glue_;
  68   scoped_ptr< StrictMock<MockProtocol> > protocol_;
  69
  70  private:
  71   DISALLOW_COPY_AND_ASSIGN(FFmpegGlueTest);
  72 };
  73
  74 class FFmpegGlueDestructionTest : public ::testing::Test {
  75  public:
  76   FFmpegGlueDestructionTest() {}
  77
  78   void Initialize(const char* filename) {
  79     data_ = ReadTestDataFile(filename);
  80     protocol_.reset(new InMemoryUrlProtocol(
  81         data_->data(), data_->data_size(), false));
  82     glue_.reset(new FFmpegGlue(protocol_.get()));
  83     CHECK(glue_->format_context());
  84     CHECK(glue_->format_context()->pb);
  85   }
  86
  87   virtual ~FFmpegGlueDestructionTest() {
  88     // Ensure Initialize() was called.
  89     CHECK(glue_.get());
  90     CHECK(protocol_.get());
  91
  92     // |glue_| should be destroyed before |protocol_|.
  93     glue_.reset();
  94
  95     // |protocol_| should be destroyed before |data_|.
  96     protocol_.reset();
  97     data_ = NULL;
  98   }
  99
 100  protected:
 101   scoped_ptr<FFmpegGlue> glue_;
 102
 103  private:
 104   scoped_ptr<InMemoryUrlProtocol> protocol_;
 105   scoped_refptr<DecoderBuffer> data_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(FFmpegGlueDestructionTest);
 108 };
 109
 110 // Ensure writing has been disabled.
 111 TEST_F(FFmpegGlueTest, Write) {
 112   ASSERT_FALSE(glue_->format_context()->pb->write_packet);
 113   ASSERT_FALSE(glue_->format_context()->pb->write_flag);
 114 }
 115
 116 // Test both successful and unsuccessful reads pass through correctly.
 117 TEST_F(FFmpegGlueTest, Read) {
 118   const int kBufferSize = 16;
 119   uint8 buffer[kBufferSize];
 120
 121   // Reads are for the most part straight-through calls to Read().
 122   InSequence s;
 123   EXPECT_CALL(*protocol_, Read(0, buffer))
 124       .WillOnce(Return(0));
 125   EXPECT_CALL(*protocol_, Read(kBufferSize, buffer))
 126       .WillOnce(Return(kBufferSize));
 127   EXPECT_CALL(*protocol_, Read(kBufferSize, buffer))
 128       .WillOnce(Return(DataSource::kReadError));
 129
 130   EXPECT_EQ(0, ReadPacket(0, buffer));
 131   EXPECT_EQ(kBufferSize, ReadPacket(kBufferSize, buffer));
 132   EXPECT_EQ(AVERROR(EIO), ReadPacket(kBufferSize, buffer));
 133 }
 134
 135 // Test a variety of seek operations.
 136 TEST_F(FFmpegGlueTest, Seek) {
 137   // SEEK_SET should be a straight-through call to SetPosition(), which when
 138   // successful will return the result from GetPosition().
 139   InSequence s;
 140   EXPECT_CALL(*protocol_, SetPosition(-16))
 141       .WillOnce(Return(false));
 142
 143   EXPECT_CALL(*protocol_, SetPosition(16))
 144       .WillOnce(Return(true));
 145   EXPECT_CALL(*protocol_, GetPosition(_))
 146       .WillOnce(DoAll(SetArgumentPointee<0>(8), Return(true)));
 147
 148   EXPECT_EQ(AVERROR(EIO), Seek(-16, SEEK_SET));
 149   EXPECT_EQ(8, Seek(16, SEEK_SET));
 150
 151   // SEEK_CUR should call GetPosition() first, and if it succeeds add the offset
 152   // to the result then call SetPosition()+GetPosition().
 153   EXPECT_CALL(*protocol_, GetPosition(_))
 154       .WillOnce(Return(false));
 155
 156   EXPECT_CALL(*protocol_, GetPosition(_))
 157       .WillOnce(DoAll(SetArgumentPointee<0>(8), Return(true)));
 158   EXPECT_CALL(*protocol_, SetPosition(16))
 159       .WillOnce(Return(false));
 160
 161   EXPECT_CALL(*protocol_, GetPosition(_))
 162       .WillOnce(DoAll(SetArgumentPointee<0>(8), Return(true)));
 163   EXPECT_CALL(*protocol_, SetPosition(16))
 164       .WillOnce(Return(true));
 165   EXPECT_CALL(*protocol_, GetPosition(_))
 166       .WillOnce(DoAll(SetArgumentPointee<0>(16), Return(true)));
 167
 168   EXPECT_EQ(AVERROR(EIO), Seek(8, SEEK_CUR));
 169   EXPECT_EQ(AVERROR(EIO), Seek(8, SEEK_CUR));
 170   EXPECT_EQ(16, Seek(8, SEEK_CUR));
 171
 172   // SEEK_END should call GetSize() first, and if it succeeds add the offset
 173   // to the result then call SetPosition()+GetPosition().
 174   EXPECT_CALL(*protocol_, GetSize(_))
 175       .WillOnce(Return(false));
 176
 177   EXPECT_CALL(*protocol_, GetSize(_))
 178       .WillOnce(DoAll(SetArgumentPointee<0>(16), Return(true)));
 179   EXPECT_CALL(*protocol_, SetPosition(8))
 180       .WillOnce(Return(false));
 181
 182   EXPECT_CALL(*protocol_, GetSize(_))
 183       .WillOnce(DoAll(SetArgumentPointee<0>(16), Return(true)));
 184   EXPECT_CALL(*protocol_, SetPosition(8))
 185       .WillOnce(Return(true));
 186   EXPECT_CALL(*protocol_, GetPosition(_))
 187       .WillOnce(DoAll(SetArgumentPointee<0>(8), Return(true)));
 188
 189   EXPECT_EQ(AVERROR(EIO), Seek(-8, SEEK_END));
 190   EXPECT_EQ(AVERROR(EIO), Seek(-8, SEEK_END));
 191   EXPECT_EQ(8, Seek(-8, SEEK_END));
 192
 193   // AVSEEK_SIZE should be a straight-through call to GetSize().
 194   EXPECT_CALL(*protocol_, GetSize(_))
 195       .WillOnce(Return(false));
 196
 197   EXPECT_CALL(*protocol_, GetSize(_))
 198       .WillOnce(DoAll(SetArgumentPointee<0>(16), Return(true)));
 199
 200   EXPECT_EQ(AVERROR(EIO), Seek(0, AVSEEK_SIZE));
 201   EXPECT_EQ(16, Seek(0, AVSEEK_SIZE));
 202 }
 203
 204 // Ensure destruction release the appropriate resources when OpenContext() is
 205 // never called.
 206 TEST_F(FFmpegGlueDestructionTest, WithoutOpen) {
 207   Initialize("ten_byte_file");
 208 }
 209
 210 // Ensure destruction releases the appropriate resources when
 211 // avformat_open_input() fails.
 212 TEST_F(FFmpegGlueDestructionTest, WithOpenFailure) {
 213   Initialize("ten_byte_file");
 214   ASSERT_FALSE(glue_->OpenContext());
 215 }
 216
 217 // Ensure destruction release the appropriate resources when OpenContext() is
 218 // called, but no streams have been opened.
 219 TEST_F(FFmpegGlueDestructionTest, WithOpenNoStreams) {
 220   Initialize("no_streams.webm");
 221   ASSERT_TRUE(glue_->OpenContext());
 222 }
 223
 224 // Ensure destruction release the appropriate resources when OpenContext() is
 225 // called and streams exist.
 226 TEST_F(FFmpegGlueDestructionTest, WithOpenWithStreams) {
 227   Initialize("bear-320x240.webm");
 228   ASSERT_TRUE(glue_->OpenContext());
 229 }
 230
 231 // Ensure destruction release the appropriate resources when OpenContext() is
 232 // called and streams have been opened.
 233 TEST_F(FFmpegGlueDestructionTest, WithOpenWithOpenStreams) {
 234   Initialize("bear-320x240.webm");
 235   ASSERT_TRUE(glue_->OpenContext());
 236   ASSERT_GT(glue_->format_context()->nb_streams, 0u);
 237
 238   AVCodecContext* context = glue_->format_context()->streams[0]->codec;
 239   ASSERT_EQ(avcodec_open2(
 240       context, avcodec_find_decoder(context->codec_id), NULL), 0);
 241 }
 242
 243 }  // namespace media