// 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 <stddef.h>
#include <stdint.h>

#include <algorithm>
#include <deque>
#include <string>

#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread.h"
#include "base/threading/thread_task_runner_handle.h"
#include "media/base/decrypt_config.h"
#include "media/base/media_log.h"
#include "media/base/media_tracks.h"
#include "media/base/mock_demuxer_host.h"
#include "media/base/test_helpers.h"
#include "media/base/timestamp_constants.h"
#include "media/ffmpeg/ffmpeg_common.h"
#include "media/filters/ffmpeg_demuxer.h"
#include "media/filters/file_data_source.h"
#include "media/formats/mp4/avc.h"
#include "media/media_features.h"
#include "testing/gtest/include/gtest/gtest.h"

using ::testing::AnyNumber;
using ::testing::DoAll;
using ::testing::Exactly;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::NotNull;
using ::testing::Return;
using ::testing::SaveArg;
using ::testing::SetArgPointee;
using ::testing::StrictMock;
using ::testing::WithArgs;
using ::testing::_;

namespace media {

MATCHER(IsEndOfStreamBuffer,
        std::string(negation ? "isn't" : "is") + " end of stream") {
  return arg->end_of_stream();
}

const uint8_t kEncryptedMediaInitData[] = {
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
    0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
};

static void EosOnReadDone(bool* got_eos_buffer,
                          DemuxerStream::Status status,
                          const scoped_refptr<DecoderBuffer>& buffer) {
  base::ThreadTaskRunnerHandle::Get()->PostTask(
      FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());

  EXPECT_EQ(status, DemuxerStream::kOk);
  if (buffer->end_of_stream()) {
    *got_eos_buffer = true;
    return;
  }

  EXPECT_TRUE(buffer->data());
  EXPECT_GT(buffer->data_size(), 0u);
  *got_eos_buffer = false;
};


// Fixture class to facilitate writing tests.  Takes care of setting up the
// FFmpeg, pipeline and filter host mocks.
class FFmpegDemuxerTest : public testing::Test {
 protected:
  FFmpegDemuxerTest() {}

  virtual ~FFmpegDemuxerTest() {
    if (demuxer_)
      demuxer_->Stop();
  }

  void CreateDemuxer(const std::string& name) {
    CHECK(!demuxer_);

    EXPECT_CALL(host_, OnBufferedTimeRangesChanged(_)).Times(AnyNumber());

    CreateDataSource(name);

    Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb = base::Bind(
        &FFmpegDemuxerTest::OnEncryptedMediaInitData, base::Unretained(this));

    Demuxer::MediaTracksUpdatedCB tracks_updated_cb = base::Bind(
        &FFmpegDemuxerTest::OnMediaTracksUpdated, base::Unretained(this));

    demuxer_.reset(new FFmpegDemuxer(
        message_loop_.task_runner(), data_source_.get(),
        encrypted_media_init_data_cb, tracks_updated_cb, new MediaLog()));
  }

  MOCK_METHOD1(CheckPoint, void(int v));

  void InitializeDemuxerInternal(bool enable_text,
                                 media::PipelineStatus expected_pipeline_status,
                                 base::Time timeline_offset) {
    if (expected_pipeline_status == PIPELINE_OK)
      EXPECT_CALL(host_, SetDuration(_));
    WaitableMessageLoopEvent event;
    demuxer_->Initialize(&host_, event.GetPipelineStatusCB(), enable_text);
    demuxer_->timeline_offset_ = timeline_offset;
    event.RunAndWaitForStatus(expected_pipeline_status);
  }

  void InitializeDemuxer() {
    InitializeDemuxerInternal(/*enable_text=*/false, PIPELINE_OK, base::Time());
  }

  void InitializeDemuxerWithText() {
    InitializeDemuxerInternal(/*enable_text=*/true, PIPELINE_OK, base::Time());
  }

  void InitializeDemuxerWithTimelineOffset(base::Time timeline_offset) {
    InitializeDemuxerInternal(/*enable_text=*/false, PIPELINE_OK,
                              timeline_offset);
  }

  void InitializeDemuxerAndExpectPipelineStatus(
      media::PipelineStatus expected_pipeline_status) {
    InitializeDemuxerInternal(/*enable_text=*/false, expected_pipeline_status,
                              base::Time());
  }

  MOCK_METHOD2(OnReadDoneCalled, void(int, int64_t));

  struct ReadExpectation {
    ReadExpectation(size_t size,
                    int64_t timestamp_us,
                    base::TimeDelta discard_front_padding,
                    bool is_key_frame,
                    DemuxerStream::Status status)
        : size(size),
          timestamp_us(timestamp_us),
          discard_front_padding(discard_front_padding),
          is_key_frame(is_key_frame),
          status(status) {}

    size_t size;
    int64_t timestamp_us;
    base::TimeDelta discard_front_padding;
    bool is_key_frame;
    DemuxerStream::Status status;
  };

  // Verifies that |buffer| has a specific |size| and |timestamp|.
  // |location| simply indicates where the call to this function was made.
  // This makes it easier to track down where test failures occur.
  void OnReadDone(const tracked_objects::Location& location,
                  const ReadExpectation& read_expectation,
                  DemuxerStream::Status status,
                  const scoped_refptr<DecoderBuffer>& buffer) {
    std::string location_str;
    location.Write(true, false, &location_str);
    location_str += "\n";
    SCOPED_TRACE(location_str);
    EXPECT_EQ(read_expectation.status, status);
    if (status == DemuxerStream::kOk) {
      EXPECT_TRUE(buffer);
      EXPECT_EQ(read_expectation.size, buffer->data_size());
      EXPECT_EQ(read_expectation.timestamp_us,
                buffer->timestamp().InMicroseconds());
      EXPECT_EQ(read_expectation.discard_front_padding,
                buffer->discard_padding().first);
      EXPECT_EQ(read_expectation.is_key_frame, buffer->is_key_frame());
    }
    DCHECK_EQ(&message_loop_, base::MessageLoop::current());
    OnReadDoneCalled(read_expectation.size, read_expectation.timestamp_us);
    message_loop_.task_runner()->PostTask(
        FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
  }

  DemuxerStream::ReadCB NewReadCB(
      const tracked_objects::Location& location,
      int size,
      int64_t timestamp_us,
      bool is_key_frame,
      DemuxerStream::Status status = DemuxerStream::kOk) {
    return NewReadCBWithCheckedDiscard(location, size, timestamp_us,
                                       base::TimeDelta(), is_key_frame, status);
  }

  DemuxerStream::ReadCB NewReadCBWithCheckedDiscard(
      const tracked_objects::Location& location,
      int size,
      int64_t timestamp_us,
      base::TimeDelta discard_front_padding,
      bool is_key_frame,
      DemuxerStream::Status status = DemuxerStream::kOk) {
    EXPECT_CALL(*this, OnReadDoneCalled(size, timestamp_us));

    struct ReadExpectation read_expectation(
        size, timestamp_us, discard_front_padding, is_key_frame, status);

    return base::Bind(&FFmpegDemuxerTest::OnReadDone,
                      base::Unretained(this),
                      location,
                      read_expectation);
  }

  MOCK_METHOD2(OnEncryptedMediaInitData,
               void(EmeInitDataType init_data_type,
                    const std::vector<uint8_t>& init_data));

  void OnMediaTracksUpdated(std::unique_ptr<MediaTracks> tracks) {
    CHECK(tracks.get());
    media_tracks_ = std::move(tracks);
  }

  // Accessor to demuxer internals.
  void set_duration_known(bool duration_known) {
    demuxer_->duration_known_ = duration_known;
  }

  bool IsStreamStopped(DemuxerStream::Type type) {
    DemuxerStream* stream = demuxer_->GetStream(type);
    CHECK(stream);
    return !static_cast<FFmpegDemuxerStream*>(stream)->demuxer_;
  }

  // Fixture members.
  std::unique_ptr<FileDataSource> data_source_;
  std::unique_ptr<FFmpegDemuxer> demuxer_;
  StrictMock<MockDemuxerHost> host_;
  std::unique_ptr<MediaTracks> media_tracks_;
  base::MessageLoop message_loop_;

  AVFormatContext* format_context() {
    return demuxer_->glue_->format_context();
  }

  DemuxerStream* preferred_seeking_stream(base::TimeDelta seek_time) const {
    return demuxer_->FindPreferredStreamForSeeking(seek_time);
  }

  void ReadUntilEndOfStream(DemuxerStream* stream) {
    bool got_eos_buffer = false;
    const int kMaxBuffers = 170;
    for (int i = 0; !got_eos_buffer && i < kMaxBuffers; i++) {
      stream->Read(base::Bind(&EosOnReadDone, &got_eos_buffer));
      base::RunLoop().Run();
    }

    EXPECT_TRUE(got_eos_buffer);
  }

 private:
  void CreateDataSource(const std::string& name) {
    CHECK(!data_source_);

    base::FilePath file_path;
    EXPECT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &file_path));

    file_path = file_path.Append(FILE_PATH_LITERAL("media"))
        .Append(FILE_PATH_LITERAL("test"))
        .Append(FILE_PATH_LITERAL("data"))
        .AppendASCII(name);

    data_source_.reset(new FileDataSource());
    EXPECT_TRUE(data_source_->Initialize(file_path));
  }

  DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxerTest);
};

TEST_F(FFmpegDemuxerTest, Initialize_OpenFails) {
  // Simulate avformat_open_input() failing.
  CreateDemuxer("ten_byte_file");
  WaitableMessageLoopEvent event;
  demuxer_->Initialize(&host_, event.GetPipelineStatusCB(), true);
  event.RunAndWaitForStatus(DEMUXER_ERROR_COULD_NOT_OPEN);
}

// TODO(acolwell): Uncomment this test when we discover a file that passes
// avformat_open_input(), but has avformat_find_stream_info() fail.
//
//TEST_F(FFmpegDemuxerTest, Initialize_ParseFails) {
//  ("find_stream_info_fail.webm");
//  demuxer_->Initialize(
//      &host_, NewExpectedStatusCB(DEMUXER_ERROR_COULD_NOT_PARSE));
//  message_loop_.RunUntilIdle();
//}

TEST_F(FFmpegDemuxerTest, Initialize_NoStreams) {
  // Open a file with no streams whatsoever.
  CreateDemuxer("no_streams.webm");
  WaitableMessageLoopEvent event;
  demuxer_->Initialize(&host_, event.GetPipelineStatusCB(), true);
  event.RunAndWaitForStatus(DEMUXER_ERROR_NO_SUPPORTED_STREAMS);
}

TEST_F(FFmpegDemuxerTest, Initialize_NoAudioVideo) {
  // Open a file containing streams but none of which are audio/video streams.
  CreateDemuxer("no_audio_video.webm");
  WaitableMessageLoopEvent event;
  demuxer_->Initialize(&host_, event.GetPipelineStatusCB(), true);
  event.RunAndWaitForStatus(DEMUXER_ERROR_NO_SUPPORTED_STREAMS);
}

TEST_F(FFmpegDemuxerTest, Initialize_Successful) {
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Video stream should be present.
  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  EXPECT_EQ(DemuxerStream::VIDEO, stream->type());

  const VideoDecoderConfig& video_config = stream->video_decoder_config();
  EXPECT_EQ(kCodecVP8, video_config.codec());
  EXPECT_EQ(PIXEL_FORMAT_YV12, video_config.format());
  EXPECT_EQ(320, video_config.coded_size().width());
  EXPECT_EQ(240, video_config.coded_size().height());
  EXPECT_EQ(0, video_config.visible_rect().x());
  EXPECT_EQ(0, video_config.visible_rect().y());
  EXPECT_EQ(320, video_config.visible_rect().width());
  EXPECT_EQ(240, video_config.visible_rect().height());
  EXPECT_EQ(320, video_config.natural_size().width());
  EXPECT_EQ(240, video_config.natural_size().height());
  EXPECT_TRUE(video_config.extra_data().empty());

  // Audio stream should be present.
  stream = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(stream);
  EXPECT_EQ(DemuxerStream::AUDIO, stream->type());

  const AudioDecoderConfig& audio_config = stream->audio_decoder_config();
  EXPECT_EQ(kCodecVorbis, audio_config.codec());
  EXPECT_EQ(32, audio_config.bits_per_channel());
  EXPECT_EQ(CHANNEL_LAYOUT_STEREO, audio_config.channel_layout());
  EXPECT_EQ(44100, audio_config.samples_per_second());
  EXPECT_EQ(kSampleFormatPlanarF32, audio_config.sample_format());
  EXPECT_FALSE(audio_config.extra_data().empty());

  // Unknown stream should never be present.
  EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::UNKNOWN));
}

TEST_F(FFmpegDemuxerTest, Initialize_Multitrack) {
  // Open a file containing the following streams:
  //   Stream #0: Video (VP8)
  //   Stream #1: Audio (Vorbis)
  //   Stream #2: Subtitles (SRT)
  //   Stream #3: Video (Theora)
  //   Stream #4: Audio (16-bit signed little endian PCM)
  //
  // We should only pick the first audio/video streams we come across.
  CreateDemuxer("bear-320x240-multitrack.webm");
  InitializeDemuxer();

  // Video stream should be VP8.
  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  EXPECT_EQ(DemuxerStream::VIDEO, stream->type());
  EXPECT_EQ(kCodecVP8, stream->video_decoder_config().codec());

  // Audio stream should be Vorbis.
  stream = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(stream);
  EXPECT_EQ(DemuxerStream::AUDIO, stream->type());
  EXPECT_EQ(kCodecVorbis, stream->audio_decoder_config().codec());

  // Unknown stream should never be present.
  EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::UNKNOWN));
}

TEST_F(FFmpegDemuxerTest, Initialize_MultitrackText) {
  // Open a file containing the following streams:
  //   Stream #0: Video (VP8)
  //   Stream #1: Audio (Vorbis)
  //   Stream #2: Text (WebVTT)

  CreateDemuxer("bear-vp8-webvtt.webm");
  DemuxerStream* text_stream = NULL;
  EXPECT_CALL(host_, AddTextStream(_, _))
      .WillOnce(SaveArg<0>(&text_stream));
  InitializeDemuxerWithText();
  ASSERT_TRUE(text_stream);
  EXPECT_EQ(DemuxerStream::TEXT, text_stream->type());

  // Video stream should be VP8.
  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  EXPECT_EQ(DemuxerStream::VIDEO, stream->type());
  EXPECT_EQ(kCodecVP8, stream->video_decoder_config().codec());

  // Audio stream should be Vorbis.
  stream = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(stream);
  EXPECT_EQ(DemuxerStream::AUDIO, stream->type());
  EXPECT_EQ(kCodecVorbis, stream->audio_decoder_config().codec());

  // Unknown stream should never be present.
  EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::UNKNOWN));
}

TEST_F(FFmpegDemuxerTest, Initialize_Encrypted) {
  EXPECT_CALL(*this,
              OnEncryptedMediaInitData(
                  EmeInitDataType::WEBM,
                  std::vector<uint8_t>(kEncryptedMediaInitData,
                                       kEncryptedMediaInitData +
                                           arraysize(kEncryptedMediaInitData))))
      .Times(Exactly(2));

  CreateDemuxer("bear-320x240-av_enc-av.webm");
  InitializeDemuxer();
}

TEST_F(FFmpegDemuxerTest, AbortPendingReads) {
  // We test that on a successful audio packet read.
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Attempt a read from the audio stream and run the message loop until done.
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  // Depending on where in the reading process ffmpeg is, an error may cause the
  // stream to be marked as EOF.  Simulate this here to ensure it is properly
  // cleared by the AbortPendingReads() call.
  format_context()->pb->eof_reached = 1;
  audio->Read(NewReadCB(FROM_HERE, 29, 0, true, DemuxerStream::kAborted));
  demuxer_->AbortPendingReads();
  base::RunLoop().Run();

  // Ensure blocking thread has completed outstanding work.
  demuxer_->Stop();
  EXPECT_EQ(format_context()->pb->eof_reached, 0);

  // Calling abort after stop should not crash.
  demuxer_->AbortPendingReads();
  demuxer_.reset();
}

TEST_F(FFmpegDemuxerTest, Read_Audio) {
  // We test that on a successful audio packet read.
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Attempt a read from the audio stream and run the message loop until done.
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  audio->Read(NewReadCB(FROM_HERE, 29, 0, true));
  base::RunLoop().Run();

  audio->Read(NewReadCB(FROM_HERE, 27, 3000, true));
  base::RunLoop().Run();

  EXPECT_EQ(22084, demuxer_->GetMemoryUsage());
}

TEST_F(FFmpegDemuxerTest, Read_Video) {
  // We test that on a successful video packet read.
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Attempt a read from the video stream and run the message loop until done.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);

  video->Read(NewReadCB(FROM_HERE, 22084, 0, true));
  base::RunLoop().Run();

  video->Read(NewReadCB(FROM_HERE, 1057, 33000, false));
  base::RunLoop().Run();

  EXPECT_EQ(323, demuxer_->GetMemoryUsage());
}

TEST_F(FFmpegDemuxerTest, Read_Text) {
  // We test that on a successful text packet read.
  CreateDemuxer("bear-vp8-webvtt.webm");
  DemuxerStream* text_stream = NULL;
  EXPECT_CALL(host_, AddTextStream(_, _))
      .WillOnce(SaveArg<0>(&text_stream));
  InitializeDemuxerWithText();
  ASSERT_TRUE(text_stream);
  EXPECT_EQ(DemuxerStream::TEXT, text_stream->type());

  text_stream->Read(NewReadCB(FROM_HERE, 31, 0, true));
  base::RunLoop().Run();

  text_stream->Read(NewReadCB(FROM_HERE, 19, 500000, true));
  base::RunLoop().Run();
}

TEST_F(FFmpegDemuxerTest, SeekInitialized_NoVideoStartTime) {
  CreateDemuxer("audio-start-time-only.webm");
  InitializeDemuxer();
  // Video stream should be preferred for seeking even if video start time is
  // unknown.
  DemuxerStream* vstream = demuxer_->GetStream(DemuxerStream::VIDEO);
  EXPECT_EQ(vstream, preferred_seeking_stream(base::TimeDelta()));
}

TEST_F(FFmpegDemuxerTest, Seeking_PreferredStreamSelection) {
  const int64_t kTimelineOffsetMs = 1352550896000LL;

  // Test the start time is the first timestamp of the video and audio stream.
  CreateDemuxer("nonzero-start-time.webm");
  InitializeDemuxerWithTimelineOffset(
      base::Time::FromJsTime(kTimelineOffsetMs));

  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  const base::TimeDelta video_start_time =
      base::TimeDelta::FromMicroseconds(400000);
  const base::TimeDelta audio_start_time =
      base::TimeDelta::FromMicroseconds(396000);

  // Seeking to a position lower than the start time of either stream should
  // prefer video stream for seeking.
  EXPECT_EQ(video, preferred_seeking_stream(base::TimeDelta()));
  // Seeking to a position that has audio data, but not video, should prefer
  // the audio stream for seeking.
  EXPECT_EQ(audio, preferred_seeking_stream(audio_start_time));
  // Seeking to a position where both audio and video streams have data should
  // prefer the video stream for seeking.
  EXPECT_EQ(video, preferred_seeking_stream(video_start_time));

  // A disabled stream should not be preferred for seeking.
  audio->set_enabled(false, base::TimeDelta());
  EXPECT_EQ(video, preferred_seeking_stream(base::TimeDelta()));
  EXPECT_EQ(video, preferred_seeking_stream(audio_start_time));
  EXPECT_EQ(video, preferred_seeking_stream(video_start_time));

  audio->set_enabled(true, base::TimeDelta());
  video->set_enabled(false, base::TimeDelta());
  EXPECT_EQ(audio, preferred_seeking_stream(base::TimeDelta()));
  EXPECT_EQ(audio, preferred_seeking_stream(audio_start_time));
  EXPECT_EQ(audio, preferred_seeking_stream(video_start_time));
}

TEST_F(FFmpegDemuxerTest, Read_VideoPositiveStartTime) {
  const int64_t kTimelineOffsetMs = 1352550896000LL;

  // Test the start time is the first timestamp of the video and audio stream.
  CreateDemuxer("nonzero-start-time.webm");
  InitializeDemuxerWithTimelineOffset(
      base::Time::FromJsTime(kTimelineOffsetMs));

  // Attempt a read from the video stream and run the message loop until done.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  const base::TimeDelta video_start_time =
      base::TimeDelta::FromMicroseconds(400000);
  const base::TimeDelta audio_start_time =
      base::TimeDelta::FromMicroseconds(396000);

  // Run the test twice with a seek in between.
  for (int i = 0; i < 2; ++i) {
    video->Read(NewReadCB(FROM_HERE, 5636, video_start_time.InMicroseconds(),
                          true));
    base::RunLoop().Run();
    audio->Read(NewReadCB(FROM_HERE, 165, audio_start_time.InMicroseconds(),
                          true));
    base::RunLoop().Run();

    // Verify that the start time is equal to the lowest timestamp (ie the
    // audio).
    EXPECT_EQ(audio_start_time, demuxer_->start_time());

    // Verify that the timeline offset has not been adjusted by the start time.
    EXPECT_EQ(kTimelineOffsetMs, demuxer_->GetTimelineOffset().ToJavaTime());

    // Seek back to the beginning and repeat the test.
    WaitableMessageLoopEvent event;
    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
    event.RunAndWaitForStatus(PIPELINE_OK);
  }
}

TEST_F(FFmpegDemuxerTest, Read_AudioNoStartTime) {
  // FFmpeg does not set timestamps when demuxing wave files.  Ensure that the
  // demuxer sets a start time of zero in this case.
  CreateDemuxer("sfx_s24le.wav");
  InitializeDemuxer();

  // Run the test twice with a seek in between.
  for (int i = 0; i < 2; ++i) {
    demuxer_->GetStream(DemuxerStream::AUDIO)
        ->Read(NewReadCB(FROM_HERE, 4095, 0, true));
    base::RunLoop().Run();
    EXPECT_EQ(base::TimeDelta(), demuxer_->start_time());

    // Seek back to the beginning and repeat the test.
    WaitableMessageLoopEvent event;
    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
    event.RunAndWaitForStatus(PIPELINE_OK);
  }
}

// TODO(dalecurtis): Test is disabled since FFmpeg does not currently guarantee
// the order of demuxed packets in OGG containers.  Re-enable and fix key frame
// expectations once we decide to either workaround it or attempt a fix
// upstream.  See http://crbug.com/387996.
TEST_F(FFmpegDemuxerTest,
       DISABLED_Read_AudioNegativeStartTimeAndOggDiscard_Bear) {
  // Many ogg files have negative starting timestamps, so ensure demuxing and
  // seeking work correctly with a negative start time.
  CreateDemuxer("bear.ogv");
  InitializeDemuxer();

  // Attempt a read from the video stream and run the message loop until done.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  // Run the test twice with a seek in between.
  for (int i = 0; i < 2; ++i) {
    audio->Read(
        NewReadCBWithCheckedDiscard(FROM_HERE, 40, 0, kInfiniteDuration, true));
    base::RunLoop().Run();
    audio->Read(NewReadCBWithCheckedDiscard(FROM_HERE, 41, 2903,
                                            kInfiniteDuration, true));
    base::RunLoop().Run();
    audio->Read(NewReadCBWithCheckedDiscard(
        FROM_HERE, 173, 5805, base::TimeDelta::FromMicroseconds(10159), true));
    base::RunLoop().Run();

    audio->Read(NewReadCB(FROM_HERE, 148, 18866, true));
    base::RunLoop().Run();
    EXPECT_EQ(base::TimeDelta::FromMicroseconds(-15964),
              demuxer_->start_time());

    video->Read(NewReadCB(FROM_HERE, 5751, 0, true));
    base::RunLoop().Run();

    video->Read(NewReadCB(FROM_HERE, 846, 33367, true));
    base::RunLoop().Run();

    video->Read(NewReadCB(FROM_HERE, 1255, 66733, true));
    base::RunLoop().Run();

    // Seek back to the beginning and repeat the test.
    WaitableMessageLoopEvent event;
    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
    event.RunAndWaitForStatus(PIPELINE_OK);
  }
}

// Same test above, but using sync2.ogv which has video stream muxed before the
// audio stream, so seeking based only on start time will fail since ffmpeg is
// essentially just seeking based on file position.
TEST_F(FFmpegDemuxerTest, Read_AudioNegativeStartTimeAndOggDiscard_Sync) {
  // Many ogg files have negative starting timestamps, so ensure demuxing and
  // seeking work correctly with a negative start time.
  CreateDemuxer("sync2.ogv");
  InitializeDemuxer();

  // Attempt a read from the video stream and run the message loop until done.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  // Run the test twice with a seek in between.
  for (int i = 0; i < 2; ++i) {
    audio->Read(NewReadCBWithCheckedDiscard(
        FROM_HERE, 1, 0, base::TimeDelta::FromMicroseconds(2902), true));
    base::RunLoop().Run();

    audio->Read(NewReadCB(FROM_HERE, 1, 2902, true));
    base::RunLoop().Run();
    EXPECT_EQ(base::TimeDelta::FromMicroseconds(-2902),
              demuxer_->start_time());

    // Though the internal start time may be below zero, the exposed media time
    // must always be greater than zero.
    EXPECT_EQ(base::TimeDelta(), demuxer_->GetStartTime());

    video->Read(NewReadCB(FROM_HERE, 9997, 0, true));
    base::RunLoop().Run();

    video->Read(NewReadCB(FROM_HERE, 16, 33241, false));
    base::RunLoop().Run();

    video->Read(NewReadCB(FROM_HERE, 631, 66482, false));
    base::RunLoop().Run();

    // Seek back to the beginning and repeat the test.
    WaitableMessageLoopEvent event;
    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
    event.RunAndWaitForStatus(PIPELINE_OK);
  }
}

// Similar to the test above, but using an opus clip with a large amount of
// pre-skip, which ffmpeg encodes as negative timestamps.
TEST_F(FFmpegDemuxerTest, Read_AudioNegativeStartTimeAndOpusDiscard_Sync) {
  CreateDemuxer("opus-trimming-video-test.webm");
  InitializeDemuxer();

  // Attempt a read from the video stream and run the message loop until done.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  EXPECT_EQ(audio->audio_decoder_config().codec_delay(), 65535);

  // Packet size to timestamp (in microseconds) mapping for the first N packets
  // which should be fully discarded.
  static const int kTestExpectations[][2] = {
      {635, 0},      {594, 120000},  {597, 240000}, {591, 360000},
      {582, 480000}, {583, 600000},  {592, 720000}, {567, 840000},
      {579, 960000}, {572, 1080000}, {583, 1200000}};

  // Run the test twice with a seek in between.
  for (int i = 0; i < 2; ++i) {
    for (size_t j = 0; j < arraysize(kTestExpectations); ++j) {
      audio->Read(NewReadCB(FROM_HERE, kTestExpectations[j][0],
                            kTestExpectations[j][1], true));
      base::RunLoop().Run();
    }

    // Though the internal start time may be below zero, the exposed media time
    // must always be greater than zero.
    EXPECT_EQ(base::TimeDelta(), demuxer_->GetStartTime());

    video->Read(NewReadCB(FROM_HERE, 16009, 0, true));
    base::RunLoop().Run();

    video->Read(NewReadCB(FROM_HERE, 2715, 1000, false));
    base::RunLoop().Run();

    video->Read(NewReadCB(FROM_HERE, 427, 33000, false));
    base::RunLoop().Run();

    // Seek back to the beginning and repeat the test.
    WaitableMessageLoopEvent event;
    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
    event.RunAndWaitForStatus(PIPELINE_OK);
  }
}

// Similar to the test above, but using sfx-opus.ogg, which has a much smaller
// amount of discard padding and no |start_time| set on the AVStream.
TEST_F(FFmpegDemuxerTest, Read_AudioNegativeStartTimeAndOpusSfxDiscard_Sync) {
  CreateDemuxer("sfx-opus.ogg");
  InitializeDemuxer();

  // Attempt a read from the video stream and run the message loop until done.
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  EXPECT_EQ(audio->audio_decoder_config().codec_delay(), 312);

   // Run the test twice with a seek in between.
  for (int i = 0; i < 2; ++i) {
    audio->Read(NewReadCB(FROM_HERE, 314, 0, true));
    base::RunLoop().Run();

    audio->Read(NewReadCB(FROM_HERE, 244, 20000, true));
    base::RunLoop().Run();

    // Though the internal start time may be below zero, the exposed media time
    // must always be greater than zero.
    EXPECT_EQ(base::TimeDelta(), demuxer_->GetStartTime());

    // Seek back to the beginning and repeat the test.
    WaitableMessageLoopEvent event;
    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
    event.RunAndWaitForStatus(PIPELINE_OK);
  }
}

TEST_F(FFmpegDemuxerTest, Read_EndOfStream) {
  // Verify that end of stream buffers are created.
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::AUDIO));
}

TEST_F(FFmpegDemuxerTest, Read_EndOfStreamText) {
  // Verify that end of stream buffers are created.
  CreateDemuxer("bear-vp8-webvtt.webm");
  DemuxerStream* text_stream = NULL;
  EXPECT_CALL(host_, AddTextStream(_, _))
      .WillOnce(SaveArg<0>(&text_stream));
  InitializeDemuxerWithText();
  ASSERT_TRUE(text_stream);
  EXPECT_EQ(DemuxerStream::TEXT, text_stream->type());

  bool got_eos_buffer = false;
  const int kMaxBuffers = 10;
  for (int i = 0; !got_eos_buffer && i < kMaxBuffers; i++) {
    text_stream->Read(base::Bind(&EosOnReadDone, &got_eos_buffer));
    base::RunLoop().Run();
  }

  EXPECT_TRUE(got_eos_buffer);
}

TEST_F(FFmpegDemuxerTest, Read_EndOfStream_NoDuration) {
  // Verify that end of stream buffers are created.
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();
  set_duration_known(false);
  EXPECT_CALL(host_, SetDuration(base::TimeDelta::FromMilliseconds(2767)));
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::AUDIO));
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::VIDEO));
}

TEST_F(FFmpegDemuxerTest, Read_EndOfStream_NoDuration_VideoOnly) {
  // Verify that end of stream buffers are created.
  CreateDemuxer("bear-320x240-video-only.webm");
  InitializeDemuxer();
  set_duration_known(false);
  EXPECT_CALL(host_, SetDuration(base::TimeDelta::FromMilliseconds(2736)));
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::VIDEO));
}

TEST_F(FFmpegDemuxerTest, Read_EndOfStream_NoDuration_AudioOnly) {
  // Verify that end of stream buffers are created.
  CreateDemuxer("bear-320x240-audio-only.webm");
  InitializeDemuxer();
  set_duration_known(false);
  EXPECT_CALL(host_, SetDuration(base::TimeDelta::FromMilliseconds(2767)));
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::AUDIO));
}

TEST_F(FFmpegDemuxerTest, Read_EndOfStream_NoDuration_UnsupportedStream) {
  // Verify that end of stream buffers are created and we don't crash
  // if there are streams in the file that we don't support.
  CreateDemuxer("vorbis_audio_wmv_video.mkv");
  InitializeDemuxer();
  set_duration_known(false);
  EXPECT_CALL(host_, SetDuration(base::TimeDelta::FromMilliseconds(1014)));
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::AUDIO));
}

TEST_F(FFmpegDemuxerTest, Seek) {
  // We're testing that the demuxer frees all queued packets when it receives
  // a Seek().
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Get our streams.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(video);
  ASSERT_TRUE(audio);

  // Read a video packet and release it.
  video->Read(NewReadCB(FROM_HERE, 22084, 0, true));
  base::RunLoop().Run();

  // Issue a simple forward seek, which should discard queued packets.
  WaitableMessageLoopEvent event;
  demuxer_->Seek(base::TimeDelta::FromMicroseconds(1000000),
                 event.GetPipelineStatusCB());
  event.RunAndWaitForStatus(PIPELINE_OK);

  // Audio read #1.
  audio->Read(NewReadCB(FROM_HERE, 145, 803000, true));
  base::RunLoop().Run();

  // Audio read #2.
  audio->Read(NewReadCB(FROM_HERE, 148, 826000, true));
  base::RunLoop().Run();

  // Video read #1.
  video->Read(NewReadCB(FROM_HERE, 5425, 801000, true));
  base::RunLoop().Run();

  // Video read #2.
  video->Read(NewReadCB(FROM_HERE, 1906, 834000, false));
  base::RunLoop().Run();
}

TEST_F(FFmpegDemuxerTest, CancelledSeek) {
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Get our streams.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(video);
  ASSERT_TRUE(audio);

  // Read a video packet and release it.
  video->Read(NewReadCB(FROM_HERE, 22084, 0, true));
  base::RunLoop().Run();

  // Issue a simple forward seek, which should discard queued packets.
  WaitableMessageLoopEvent event;
  demuxer_->Seek(base::TimeDelta::FromMicroseconds(1000000),
                 event.GetPipelineStatusCB());
  // FFmpegDemuxer does not care what the previous seek time was when canceling.
  demuxer_->CancelPendingSeek(base::TimeDelta::FromSeconds(12345));
  event.RunAndWaitForStatus(PIPELINE_OK);
}

TEST_F(FFmpegDemuxerTest, SeekText) {
  // We're testing that the demuxer frees all queued packets when it receives
  // a Seek().
  CreateDemuxer("bear-vp8-webvtt.webm");
  DemuxerStream* text_stream = NULL;
  EXPECT_CALL(host_, AddTextStream(_, _))
      .WillOnce(SaveArg<0>(&text_stream));
  InitializeDemuxerWithText();
  ASSERT_TRUE(text_stream);
  EXPECT_EQ(DemuxerStream::TEXT, text_stream->type());

  // Get our streams.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(video);
  ASSERT_TRUE(audio);

  // Read a text packet and release it.
  text_stream->Read(NewReadCB(FROM_HERE, 31, 0, true));
  base::RunLoop().Run();

  // Issue a simple forward seek, which should discard queued packets.
  WaitableMessageLoopEvent event;
  demuxer_->Seek(base::TimeDelta::FromMicroseconds(1000000),
                 event.GetPipelineStatusCB());
  event.RunAndWaitForStatus(PIPELINE_OK);

  // Audio read #1.
  audio->Read(NewReadCB(FROM_HERE, 145, 803000, true));
  base::RunLoop().Run();

  // Audio read #2.
  audio->Read(NewReadCB(FROM_HERE, 148, 826000, true));
  base::RunLoop().Run();

  // Video read #1.
  video->Read(NewReadCB(FROM_HERE, 5425, 801000, true));
  base::RunLoop().Run();

  // Video read #2.
  video->Read(NewReadCB(FROM_HERE, 1906, 834000, false));
  base::RunLoop().Run();

  // Text read #1.
  text_stream->Read(NewReadCB(FROM_HERE, 19, 500000, true));
  base::RunLoop().Run();

  // Text read #2.
  text_stream->Read(NewReadCB(FROM_HERE, 19, 1000000, true));
  base::RunLoop().Run();
}

class MockReadCB {
 public:
  MockReadCB() {}
  ~MockReadCB() {}

  MOCK_METHOD2(Run, void(DemuxerStream::Status status,
                         const scoped_refptr<DecoderBuffer>& buffer));
 private:
  DISALLOW_COPY_AND_ASSIGN(MockReadCB);
};

TEST_F(FFmpegDemuxerTest, Stop) {
  // Tests that calling Read() on a stopped demuxer stream immediately deletes
  // the callback.
  CreateDemuxer("bear-320x240.webm");
  InitializeDemuxer();

  // Get our stream.
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(audio);

  demuxer_->Stop();

  // Reads after being stopped are all EOS buffers.
  StrictMock<MockReadCB> callback;
  EXPECT_CALL(callback, Run(DemuxerStream::kOk, IsEndOfStreamBuffer()));

  // Attempt the read...
  audio->Read(base::Bind(&MockReadCB::Run, base::Unretained(&callback)));
  base::RunLoop().RunUntilIdle();

  // Don't let the test call Stop() again.
  demuxer_.reset();
}

// Verify that seek works properly when the WebM cues data is at the start of
// the file instead of at the end.
TEST_F(FFmpegDemuxerTest, SeekWithCuesBeforeFirstCluster) {
  CreateDemuxer("bear-320x240-cues-in-front.webm");
  InitializeDemuxer();

  // Get our streams.
  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
  ASSERT_TRUE(video);
  ASSERT_TRUE(audio);

  // Read a video packet and release it.
  video->Read(NewReadCB(FROM_HERE, 22084, 0, true));
  base::RunLoop().Run();

  // Issue a simple forward seek, which should discard queued packets.
  WaitableMessageLoopEvent event;
  demuxer_->Seek(base::TimeDelta::FromMicroseconds(2500000),
                 event.GetPipelineStatusCB());
  event.RunAndWaitForStatus(PIPELINE_OK);

  // Audio read #1.
  audio->Read(NewReadCB(FROM_HERE, 40, 2403000, true));
  base::RunLoop().Run();

  // Audio read #2.
  audio->Read(NewReadCB(FROM_HERE, 42, 2406000, true));
  base::RunLoop().Run();

  // Video read #1.
  video->Read(NewReadCB(FROM_HERE, 5276, 2402000, true));
  base::RunLoop().Run();

  // Video read #2.
  video->Read(NewReadCB(FROM_HERE, 1740, 2436000, false));
  base::RunLoop().Run();
}

#if defined(USE_PROPRIETARY_CODECS)
// Ensure ID3v1 tag reading is disabled.  id3_test.mp3 has an ID3v1 tag with the
// field "title" set to "sample for id3 test".
TEST_F(FFmpegDemuxerTest, NoID3TagData) {
  CreateDemuxer("id3_test.mp3");
  InitializeDemuxer();
  EXPECT_FALSE(av_dict_get(format_context()->metadata, "title", NULL, 0));
}
#endif

#if defined(USE_PROPRIETARY_CODECS)
// Ensure MP3 files with large image/video based ID3 tags demux okay.  FFmpeg
// will hand us a video stream to the data which will likely be in a format we
// don't accept as video; e.g. PNG.
TEST_F(FFmpegDemuxerTest, Mp3WithVideoStreamID3TagData) {
  CreateDemuxer("id3_png_test.mp3");
  InitializeDemuxer();

  // Ensure the expected streams are present.
  EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::VIDEO));
  EXPECT_TRUE(demuxer_->GetStream(DemuxerStream::AUDIO));
}
#endif

// Ensure a video with an unsupported audio track still results in the video
// stream being demuxed.
TEST_F(FFmpegDemuxerTest, UnsupportedAudioSupportedVideoDemux) {
  CreateDemuxer("speex_audio_vorbis_video.ogv");
  InitializeDemuxer();

  // Ensure the expected streams are present.
  EXPECT_TRUE(demuxer_->GetStream(DemuxerStream::VIDEO));
  EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::AUDIO));
}

// Ensure a video with an unsupported video track still results in the audio
// stream being demuxed.
TEST_F(FFmpegDemuxerTest, UnsupportedVideoSupportedAudioDemux) {
  CreateDemuxer("vorbis_audio_wmv_video.mkv");
  InitializeDemuxer();

  // Ensure the expected streams are present.
  EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::VIDEO));
  EXPECT_TRUE(demuxer_->GetStream(DemuxerStream::AUDIO));
}

#if defined(USE_PROPRIETARY_CODECS)
// FFmpeg returns null data pointers when samples have zero size, leading to
// mistakenly creating end of stream buffers http://crbug.com/169133
TEST_F(FFmpegDemuxerTest, MP4_ZeroStszEntry) {
  CreateDemuxer("bear-1280x720-zero-stsz-entry.mp4");
  InitializeDemuxer();
  ReadUntilEndOfStream(demuxer_->GetStream(DemuxerStream::AUDIO));
}

class Mp3SeekFFmpegDemuxerTest
    : public FFmpegDemuxerTest,
      public testing::WithParamInterface<const char*> {
};
TEST_P(Mp3SeekFFmpegDemuxerTest, TestFastSeek) {
  // Init demxuer with given MP3 file parameter.
  CreateDemuxer(GetParam());
  InitializeDemuxer();

  // We read a bunch of bytes when we first open the file. Reset the count
  // here to just track the bytes read for the upcoming seek. This allows us
  // to use a more narrow threshold for passing the test.
  data_source_->reset_bytes_read_for_testing();

  FFmpegDemuxerStream* audio = static_cast<FFmpegDemuxerStream*>(
    demuxer_->GetStream(DemuxerStream::AUDIO));
  ASSERT_TRUE(audio);

  // Seek to near the end of the file
  WaitableMessageLoopEvent event;
  demuxer_->Seek(.9 * audio->duration(), event.GetPipelineStatusCB());
  event.RunAndWaitForStatus(PIPELINE_OK);

  // Verify that seeking to the end read only a small portion of the file.
  // Slow seeks that read sequentially up to the seek point will read too many
  // bytes and fail this check.
  int64_t file_size = 0;
  ASSERT_TRUE(data_source_->GetSize(&file_size));
  EXPECT_LT(data_source_->bytes_read_for_testing(), (file_size * .25));
}

// MP3s should seek quickly without sequentially reading up to the seek point.
// VBR vs CBR and the presence/absence of TOC influence the seeking algorithm.
// See http://crbug.com/530043 and FFmpeg flag AVFMT_FLAG_FAST_SEEK.
INSTANTIATE_TEST_CASE_P(, Mp3SeekFFmpegDemuxerTest,
                        ::testing::Values("bear-audio-10s-CBR-has-TOC.mp3",
                                          "bear-audio-10s-CBR-no-TOC.mp3",
                                          "bear-audio-10s-VBR-has-TOC.mp3",
                                          "bear-audio-10s-VBR-no-TOC.mp3"));

static void ValidateAnnexB(DemuxerStream* stream,
                           DemuxerStream::Status status,
                           const scoped_refptr<DecoderBuffer>& buffer) {
  EXPECT_EQ(status, DemuxerStream::kOk);

  if (buffer->end_of_stream()) {
    base::ThreadTaskRunnerHandle::Get()->PostTask(
        FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
    return;
  }

  std::vector<SubsampleEntry> subsamples;

  if (buffer->decrypt_config())
    subsamples = buffer->decrypt_config()->subsamples();

  bool is_valid =
      mp4::AVC::IsValidAnnexB(buffer->data(), buffer->data_size(),
                              subsamples);
  EXPECT_TRUE(is_valid);

  if (!is_valid) {
    LOG(ERROR) << "Buffer contains invalid Annex B data.";
    base::ThreadTaskRunnerHandle::Get()->PostTask(
        FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
    return;
  }

  stream->Read(base::Bind(&ValidateAnnexB, stream));
};

TEST_F(FFmpegDemuxerTest, IsValidAnnexB) {
  const char* files[] = {
    "bear-1280x720-av_frag.mp4",
    "bear-1280x720-av_with-aud-nalus_frag.mp4"
  };

  for (size_t i = 0; i < arraysize(files); ++i) {
    DVLOG(1) << "Testing " << files[i];
    CreateDemuxer(files[i]);
    InitializeDemuxer();

    // Ensure the expected streams are present.
    DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
    ASSERT_TRUE(stream);
    stream->EnableBitstreamConverter();

    stream->Read(base::Bind(&ValidateAnnexB, stream));
    base::RunLoop().Run();

    demuxer_->Stop();
    demuxer_.reset();
    data_source_.reset();
  }
}

TEST_F(FFmpegDemuxerTest, Rotate_Metadata_0) {
  CreateDemuxer("bear_rotate_0.mp4");
  InitializeDemuxer();

  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  ASSERT_EQ(VIDEO_ROTATION_0, stream->video_rotation());
}

TEST_F(FFmpegDemuxerTest, Rotate_Metadata_90) {
  CreateDemuxer("bear_rotate_90.mp4");
  InitializeDemuxer();

  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  ASSERT_EQ(VIDEO_ROTATION_90, stream->video_rotation());
}

TEST_F(FFmpegDemuxerTest, Rotate_Metadata_180) {
  CreateDemuxer("bear_rotate_180.mp4");
  InitializeDemuxer();

  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  ASSERT_EQ(VIDEO_ROTATION_180, stream->video_rotation());
}

TEST_F(FFmpegDemuxerTest, Rotate_Metadata_270) {
  CreateDemuxer("bear_rotate_270.mp4");
  InitializeDemuxer();

  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);
  ASSERT_EQ(VIDEO_ROTATION_270, stream->video_rotation());
}

TEST_F(FFmpegDemuxerTest, NaturalSizeWithoutPASP) {
  CreateDemuxer("bear-640x360-non_square_pixel-without_pasp.mp4");
  InitializeDemuxer();

  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);

  const VideoDecoderConfig& video_config = stream->video_decoder_config();
  EXPECT_EQ(gfx::Size(639, 360), video_config.natural_size());
}

TEST_F(FFmpegDemuxerTest, NaturalSizeWithPASP) {
  CreateDemuxer("bear-640x360-non_square_pixel-with_pasp.mp4");
  InitializeDemuxer();

  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(stream);

  const VideoDecoderConfig& video_config = stream->video_decoder_config();
  EXPECT_EQ(gfx::Size(639, 360), video_config.natural_size());
}

TEST_F(FFmpegDemuxerTest, HEVC_in_MP4_container) {
  CreateDemuxer("bear-hevc-frag.mp4");
#if BUILDFLAG(ENABLE_HEVC_DEMUXING)
  InitializeDemuxer();

  DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
  ASSERT_TRUE(video);

  video->Read(NewReadCB(FROM_HERE, 3569, 66733, true));
  base::RunLoop().Run();

  video->Read(NewReadCB(FROM_HERE, 1042, 200200, false));
  base::RunLoop().Run();
#else
  InitializeDemuxerAndExpectPipelineStatus(DEMUXER_ERROR_NO_SUPPORTED_STREAMS);
#endif
}

TEST_F(FFmpegDemuxerTest, Read_AC3_Audio) {
  CreateDemuxer("bear-ac3-only-frag.mp4");
#if BUILDFLAG(ENABLE_AC3_EAC3_AUDIO_DEMUXING)
  InitializeDemuxer();

  // Attempt a read from the audio stream and run the message loop until done.
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  // Read the first two frames and check that we are getting expected data
  audio->Read(NewReadCB(FROM_HERE, 834, 0, true));
  base::RunLoop().Run();

  audio->Read(NewReadCB(FROM_HERE, 836, 34830, true));
  base::RunLoop().Run();
#else
  InitializeDemuxerAndExpectPipelineStatus(DEMUXER_ERROR_NO_SUPPORTED_STREAMS);
#endif
}

TEST_F(FFmpegDemuxerTest, Read_EAC3_Audio) {
  CreateDemuxer("bear-eac3-only-frag.mp4");
#if BUILDFLAG(ENABLE_AC3_EAC3_AUDIO_DEMUXING)
  InitializeDemuxer();

  // Attempt a read from the audio stream and run the message loop until done.
  DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);

  // Read the first two frames and check that we are getting expected data
  audio->Read(NewReadCB(FROM_HERE, 870, 0, true));
  base::RunLoop().Run();

  audio->Read(NewReadCB(FROM_HERE, 872, 34830, true));
  base::RunLoop().Run();
#else
  InitializeDemuxerAndExpectPipelineStatus(DEMUXER_ERROR_NO_SUPPORTED_STREAMS);
#endif
}

TEST_F(FFmpegDemuxerTest, Read_Mp4_Media_Track_Info) {
  CreateDemuxer("bear.mp4");
  InitializeDemuxer();

  EXPECT_EQ(media_tracks_->tracks().size(), 2u);

  const MediaTrack& audio_track = *(media_tracks_->tracks()[0]);
  EXPECT_EQ(audio_track.type(), MediaTrack::Audio);
  EXPECT_EQ(audio_track.bytestream_track_id(), 1);
  EXPECT_EQ(audio_track.kind(), "main");
  EXPECT_EQ(audio_track.label(), "GPAC ISO Audio Handler");
  EXPECT_EQ(audio_track.language(), "und");

  const MediaTrack& video_track = *(media_tracks_->tracks()[1]);
  EXPECT_EQ(video_track.type(), MediaTrack::Video);
  EXPECT_EQ(video_track.bytestream_track_id(), 2);
  EXPECT_EQ(video_track.kind(), "main");
  EXPECT_EQ(video_track.label(), "GPAC ISO Video Handler");
  EXPECT_EQ(video_track.language(), "und");
}

TEST_F(FFmpegDemuxerTest, Read_Mp4_Multiple_Tracks) {
  CreateDemuxer("bbb-320x240-2video-2audio.mp4");
  InitializeDemuxer();

  EXPECT_EQ(media_tracks_->tracks().size(), 4u);

  const MediaTrack& video_track = *(media_tracks_->tracks()[0]);
  EXPECT_EQ(video_track.type(), MediaTrack::Video);
  EXPECT_EQ(video_track.bytestream_track_id(), 1);
  EXPECT_EQ(video_track.kind(), "main");
  EXPECT_EQ(video_track.label(), "VideoHandler");
  EXPECT_EQ(video_track.language(), "und");

  const MediaTrack& audio_track = *(media_tracks_->tracks()[1]);
  EXPECT_EQ(audio_track.type(), MediaTrack::Audio);
  EXPECT_EQ(audio_track.bytestream_track_id(), 2);
  EXPECT_EQ(audio_track.kind(), "main");
  EXPECT_EQ(audio_track.label(), "SoundHandler");
  EXPECT_EQ(audio_track.language(), "und");

  const MediaTrack& video_track2 = *(media_tracks_->tracks()[2]);
  EXPECT_EQ(video_track2.type(), MediaTrack::Video);
  EXPECT_EQ(video_track2.bytestream_track_id(), 3);
  EXPECT_EQ(video_track2.kind(), "main");
  EXPECT_EQ(video_track2.label(), "VideoHandler");
  EXPECT_EQ(video_track2.language(), "und");

  const MediaTrack& audio_track2 = *(media_tracks_->tracks()[3]);
  EXPECT_EQ(audio_track2.type(), MediaTrack::Audio);
  EXPECT_EQ(audio_track2.bytestream_track_id(), 4);
  EXPECT_EQ(audio_track2.kind(), "main");
  EXPECT_EQ(audio_track2.label(), "SoundHandler");
  EXPECT_EQ(audio_track2.language(), "und");
}

#endif  // defined(USE_PROPRIETARY_CODECS)

TEST_F(FFmpegDemuxerTest, Read_Webm_Multiple_Tracks) {
  CreateDemuxer("multitrack-3video-2audio.webm");
  InitializeDemuxer();

  EXPECT_EQ(media_tracks_->tracks().size(), 5u);

  const MediaTrack& video_track1 = *(media_tracks_->tracks()[0]);
  EXPECT_EQ(video_track1.type(), MediaTrack::Video);
  EXPECT_EQ(video_track1.bytestream_track_id(), 1);

  const MediaTrack& video_track2 = *(media_tracks_->tracks()[1]);
  EXPECT_EQ(video_track2.type(), MediaTrack::Video);
  EXPECT_EQ(video_track2.bytestream_track_id(), 2);

  const MediaTrack& video_track3 = *(media_tracks_->tracks()[2]);
  EXPECT_EQ(video_track3.type(), MediaTrack::Video);
  EXPECT_EQ(video_track3.bytestream_track_id(), 3);

  const MediaTrack& audio_track1 = *(media_tracks_->tracks()[3]);
  EXPECT_EQ(audio_track1.type(), MediaTrack::Audio);
  EXPECT_EQ(audio_track1.bytestream_track_id(), 4);

  const MediaTrack& audio_track2 = *(media_tracks_->tracks()[4]);
  EXPECT_EQ(audio_track2.type(), MediaTrack::Audio);
  EXPECT_EQ(audio_track2.bytestream_track_id(), 5);
}

TEST_F(FFmpegDemuxerTest, Read_Webm_Media_Track_Info) {
  CreateDemuxer("bear.webm");
  InitializeDemuxer();

  EXPECT_EQ(media_tracks_->tracks().size(), 2u);

  const MediaTrack& video_track = *(media_tracks_->tracks()[0]);
  EXPECT_EQ(video_track.type(), MediaTrack::Video);
  EXPECT_EQ(video_track.bytestream_track_id(), 1);
  EXPECT_EQ(video_track.kind(), "main");
  EXPECT_EQ(video_track.label(), "");
  EXPECT_EQ(video_track.language(), "");

  const MediaTrack& audio_track = *(media_tracks_->tracks()[1]);
  EXPECT_EQ(audio_track.type(), MediaTrack::Audio);
  EXPECT_EQ(audio_track.bytestream_track_id(), 2);
  EXPECT_EQ(audio_track.kind(), "main");
  EXPECT_EQ(audio_track.label(), "");
  EXPECT_EQ(audio_track.language(), "");
}

}  // namespace media