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C++ TimeUnit::ToMicroseconds方法代码示例

本文整理汇总了C++中TimeUnit::ToMicroseconds方法的典型用法代码示例。如果您正苦于以下问题：C++ TimeUnit::ToMicroseconds方法的具体用法？C++ TimeUnit::ToMicroseconds怎么用？C++ TimeUnit::ToMicroseconds使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TimeUnit的用法示例。


在下文中一共展示了TimeUnit::ToMicroseconds方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: stream

TimeIntervals
MP3TrackDemuxer::GetBuffered() {
  AutoPinned<MediaResource> stream(mSource.GetResource());
  TimeIntervals buffered;

  if (Duration() > TimeUnit() && stream->IsDataCachedToEndOfResource(0)) {
    // Special case completely cached files. This also handles local files.
    buffered += TimeInterval(TimeUnit(), Duration());
    MP3LOGV("buffered = [[%" PRId64 ", %" PRId64 "]]",
            TimeUnit().ToMicroseconds(), Duration().ToMicroseconds());
    return buffered;
  }

  MediaByteRangeSet ranges;
  nsresult rv = stream->GetCachedRanges(ranges);
  NS_ENSURE_SUCCESS(rv, buffered);

  for (const auto& range: ranges) {
    if (range.IsEmpty()) {
      continue;
    }
    TimeUnit start = Duration(FrameIndexFromOffset(range.mStart));
    TimeUnit end = Duration(FrameIndexFromOffset(range.mEnd));
    MP3LOGV("buffered += [%" PRId64 ", %" PRId64 "]",
            start.ToMicroseconds(), end.ToMicroseconds());
    buffered += TimeInterval(start, end);
  }

  return buffered;
}
开发者ID:cstipkovic，项目名称:gecko-dev，代码行数:30，代码来源:MP3Demuxer.cpp

示例2: 

TEST(MP4Demuxer, GetNextKeyframe)
{
  RefPtr<MP4DemuxerBinding> binding = new MP4DemuxerBinding("gizmo-frag.mp4");

  binding->RunTestAndWait([binding]() {
    // Insert a [0,end] buffered range, to simulate Moof's being buffered
    // via MSE.
    auto len = binding->resource->GetLength();
    binding->resource->MockAddBufferedRange(0, len);

    // gizmp-frag has two keyframes; one at dts=cts=0, and another at
    // dts=cts=1000000. Verify we get expected results.
    TimeUnit time;
    binding->mVideoTrack =
        binding->mDemuxer->GetTrackDemuxer(TrackInfo::kVideoTrack, 0);
    binding->mVideoTrack->Reset();
    binding->mVideoTrack->GetNextRandomAccessPoint(&time);
    EXPECT_EQ(time.ToMicroseconds(), 0);
    binding->mVideoTrack->GetSamples()->Then(
        binding->mTaskQueue, __func__,
        [binding]() {
          TimeUnit time;
          binding->mVideoTrack->GetNextRandomAccessPoint(&time);
          EXPECT_EQ(time.ToMicroseconds(), 1000000);
          binding->mTaskQueue->BeginShutdown();
        },
        DO_FAIL);
  });
}
开发者ID:Noctem，项目名称:gecko-dev，代码行数:29，代码来源:TestMP4Demuxer.cpp

示例3: FastSeek

TimeUnit
MP3TrackDemuxer::ScanUntil(const TimeUnit& aTime) {
  MP3LOG("ScanUntil(%" PRId64 ") avgFrameLen=%f mNumParsedFrames=%" PRIu64
         " mFrameIndex=%" PRId64 " mOffset=%" PRIu64,
         aTime.ToMicroseconds(), AverageFrameLength(), mNumParsedFrames,
         mFrameIndex, mOffset);

  if (!aTime.ToMicroseconds()) {
    return FastSeek(aTime);
  }

  if (Duration(mFrameIndex) > aTime) {
    FastSeek(aTime);
  }

  if (Duration(mFrameIndex + 1) > aTime) {
    return SeekPosition();
  }

  MediaByteRange nextRange = FindNextFrame();
  while (SkipNextFrame(nextRange) && Duration(mFrameIndex + 1) < aTime) {
    nextRange = FindNextFrame();
    MP3LOGV("ScanUntil* avgFrameLen=%f mNumParsedFrames=%" PRIu64
            " mFrameIndex=%" PRId64 " mOffset=%" PRIu64 " Duration=%" PRId64,
            AverageFrameLength(), mNumParsedFrames,
            mFrameIndex, mOffset, Duration(mFrameIndex + 1).ToMicroseconds());
  }

  MP3LOG("ScanUntil End avgFrameLen=%f mNumParsedFrames=%" PRIu64
         " mFrameIndex=%" PRId64 " mOffset=%" PRIu64,
         AverageFrameLength(), mNumParsedFrames, mFrameIndex, mOffset);

  return SeekPosition();
}
开发者ID:cstipkovic，项目名称:gecko-dev，代码行数:34，代码来源:MP3Demuxer.cpp

示例4: Duration

TimeUnit
MP3TrackDemuxer::FastSeek(const TimeUnit& aTime) {
  MP3LOG("FastSeek(%" PRId64 ") avgFrameLen=%f mNumParsedFrames=%" PRIu64
         " mFrameIndex=%" PRId64 " mOffset=%" PRIu64,
         aTime, AverageFrameLength(), mNumParsedFrames, mFrameIndex, mOffset);

  const auto& vbr = mParser.VBRInfo();
  if (!aTime.ToMicroseconds()) {
    // Quick seek to the beginning of the stream.
    mFrameIndex = 0;
  } else if (vbr.IsTOCPresent()) {
    // Use TOC for more precise seeking.
    const float durationFrac = static_cast<float>(aTime.ToMicroseconds()) /
                                                  Duration().ToMicroseconds();
    mFrameIndex = FrameIndexFromOffset(vbr.Offset(durationFrac));
  } else if (AverageFrameLength() > 0) {
    mFrameIndex = FrameIndexFromTime(aTime);
  }

  mOffset = OffsetFromFrameIndex(mFrameIndex);

  if (mOffset > mFirstFrameOffset && StreamLength() > 0) {
    mOffset = std::min(StreamLength() - 1, mOffset);
  }

  mParser.EndFrameSession();

  MP3LOG("FastSeek End TOC=%d avgFrameLen=%f mNumParsedFrames=%" PRIu64
         " mFrameIndex=%" PRId64 " mFirstFrameOffset=%llu mOffset=%" PRIu64
         " SL=%llu NumBytes=%u",
         vbr.IsTOCPresent(), AverageFrameLength(), mNumParsedFrames, mFrameIndex,
         mFirstFrameOffset, mOffset, StreamLength(), vbr.NumBytes().valueOr(0));

  return Duration(mFrameIndex);
}
开发者ID:carriercomm，项目名称:system-addons，代码行数:35，代码来源:MP3Demuxer.cpp

示例5: nsPrintfCString

nsCString
DecodedStreamData::GetDebugInfo()
{
  return nsPrintfCString(
    "DecodedStreamData=%p mPlaying=%d mAudioFramesWritten=%" PRId64
    " mNextAudioTime=%" PRId64 " mNextVideoTime=%" PRId64 " mHaveSentFinish=%d "
    "mHaveSentFinishAudio=%d mHaveSentFinishVideo=%d",
    this, mPlaying, mAudioFramesWritten, mNextAudioTime.ToMicroseconds(),
    mNextVideoTime.ToMicroseconds(), mHaveSentFinish, mHaveSentFinishAudio,
    mHaveSentFinishVideo);
}
开发者ID:bgrins，项目名称:gecko-dev，代码行数:11，代码来源:DecodedStream.cpp

示例6: TimeUnit

TimeUnit
MP3TrackDemuxer::FastSeek(TimeUnit aTime) {
  MP3DEMUXER_LOG("FastSeek(%" PRId64 ") avgFrameLen=%f mNumParsedFrames=%" PRIu64
                 " mFrameIndex=%" PRId64 " mOffset=%" PRIu64,
                 aTime, AverageFrameLength(), mNumParsedFrames, mFrameIndex,
                 mOffset);

  if (!aTime.ToMicroseconds()) {
    // Quick seek to the beginning of the stream.
    mOffset = mFirstFrameOffset;
    mFrameIndex = 0;
    mParser.EndFrameSession();
    return TimeUnit();
  }

  if (!mSamplesPerFrame || !mNumParsedFrames) {
    return TimeUnit::FromMicroseconds(-1);
  }

  const int64_t numFrames = aTime.ToSeconds() *
                            mSamplesPerSecond / mSamplesPerFrame;
  mOffset = mFirstFrameOffset + numFrames * AverageFrameLength();
  mFrameIndex = numFrames;

  MP3DEMUXER_LOG("FastSeek mSamplesPerSecond=%d mSamplesPerFrame=%d "
                 "numFrames=%" PRId64,
                 mSamplesPerSecond, mSamplesPerFrame, numFrames);

  mParser.EndFrameSession();

  return Duration(mFrameIndex);
}
开发者ID:Jar-win，项目名称:Waterfox，代码行数:32，代码来源:MP3Demuxer.cpp

示例7: PostOutput

  nsresult PostOutput(BufferInfo::Param aInfo, MediaFormat::Param aFormat,
                      const TimeUnit& aDuration) override
  {
    RefPtr<layers::Image> img =
      new SurfaceTextureImage(mSurfaceTexture.get(), mConfig.mDisplay,
                              gl::OriginPos::BottomLeft);

    nsresult rv;
    int32_t flags;
    NS_ENSURE_SUCCESS(rv = aInfo->Flags(&flags), rv);

    bool isSync = !!(flags & MediaCodec::BUFFER_FLAG_SYNC_FRAME);

    int32_t offset;
    NS_ENSURE_SUCCESS(rv = aInfo->Offset(&offset), rv);

    int64_t presentationTimeUs;
    NS_ENSURE_SUCCESS(rv = aInfo->PresentationTimeUs(&presentationTimeUs), rv);

    RefPtr<VideoData> v =
      VideoData::CreateFromImage(mConfig,
                                 mImageContainer,
                                 offset,
                                 presentationTimeUs,
                                 aDuration.ToMicroseconds(),
                                 img,
                                 isSync,
                                 presentationTimeUs,
                                 gfx::IntRect(0, 0,
                                              mConfig.mDisplay.width,
                                              mConfig.mDisplay.height));
    INVOKE_CALLBACK(Output, v);
    return NS_OK;
  }
开发者ID:rnd-user，项目名称:gecko-dev，代码行数:34，代码来源:AndroidDecoderModule.cpp

示例8: 

static void
WriteVideoToMediaStream(MediaStream* aStream,
                        layers::Image* aImage,
                        const TimeUnit& aEnd,
                        const TimeUnit& aStart,
                        const mozilla::gfx::IntSize& aIntrinsicSize,
                        const TimeStamp& aTimeStamp,
                        VideoSegment* aOutput,
                        const PrincipalHandle& aPrincipalHandle)
{
  RefPtr<layers::Image> image = aImage;
  auto end = aStream->MicrosecondsToStreamTimeRoundDown(aEnd.ToMicroseconds());
  auto start = aStream->MicrosecondsToStreamTimeRoundDown(aStart.ToMicroseconds());
  StreamTime duration = end - start;
  aOutput->AppendFrame(image.forget(), duration, aIntrinsicSize,
                       aPrincipalHandle, false, aTimeStamp);
}
开发者ID:bgrins，项目名称:gecko-dev，代码行数:17，代码来源:DecodedStream.cpp

示例9: TimeIntervals

TimeIntervals
MP3TrackDemuxer::GetBuffered() {
  TimeUnit duration = Duration();

  if (duration <= TimeUnit()) {
    return TimeIntervals();
  }
  AutoPinned<MediaResource> stream(mSource.GetResource());
  return GetEstimatedBufferedTimeRanges(stream, duration.ToMicroseconds());
}
开发者ID:MekliCZ，项目名称:positron，代码行数:10，代码来源:MP3Demuxer.cpp

示例10: DurationChanged

void MediaDecoder::DurationChanged(TimeUnit aNewDuration)
{
  MOZ_ASSERT(NS_IsMainThread());
  ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
  int64_t oldDuration = mDuration;
  mDuration = aNewDuration.ToMicroseconds();
  // Duration has changed so we should recompute playback rate
  UpdatePlaybackRate();

  SetInfinite(mDuration == -1);

  if (mOwner && oldDuration != mDuration && !IsInfinite()) {
    DECODER_LOG("Duration changed to %lld", mDuration);
    mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("durationchange"));
  }

  if (CurrentPosition() > aNewDuration.ToMicroseconds()) {
    Seek(aNewDuration.ToSeconds(), SeekTarget::Accurate);
  }
}
开发者ID:ShakoHo，项目名称:gecko-dev，代码行数:20，代码来源:MediaDecoder.cpp

示例11: FastSeek

TimeUnit
WAVTrackDemuxer::ScanUntil(const TimeUnit& aTime)
{
  if (!aTime.ToMicroseconds()) {
    return FastSeek(aTime);
  }

  if (Duration(mChunkIndex) > aTime) {
    FastSeek(aTime);
  }

  return SeekPosition();
}
开发者ID:Wafflespeanut，项目名称:gecko-dev，代码行数:13，代码来源:WaveDemuxer.cpp

示例12: Output

  nsresult Output(BufferInfo::Param aInfo, void* aBuffer,
                  MediaFormat::Param aFormat, const TimeUnit& aDuration)
  {
    // The output on Android is always 16-bit signed
    nsresult rv;
    int32_t numChannels;
    NS_ENSURE_SUCCESS(rv =
        aFormat->GetInteger(NS_LITERAL_STRING("channel-count"), &numChannels), rv);
    AudioConfig::ChannelLayout layout(numChannels);
    if (!layout.IsValid()) {
      return NS_ERROR_FAILURE;
    }

    int32_t sampleRate;
    NS_ENSURE_SUCCESS(rv =
        aFormat->GetInteger(NS_LITERAL_STRING("sample-rate"), &sampleRate), rv);

    int32_t size;
    NS_ENSURE_SUCCESS(rv = aInfo->Size(&size), rv);

    int32_t offset;
    NS_ENSURE_SUCCESS(rv = aInfo->Offset(&offset), rv);

#ifdef MOZ_SAMPLE_TYPE_S16
    const int32_t numSamples = size / 2;
#else
#error We only support 16-bit integer PCM
#endif

    const int32_t numFrames = numSamples / numChannels;
    AlignedAudioBuffer audio(numSamples);
    if (!audio) {
      return NS_ERROR_OUT_OF_MEMORY;
    }

    const uint8_t* bufferStart = static_cast<uint8_t*>(aBuffer) + offset;
    PodCopy(audio.get(), reinterpret_cast<const AudioDataValue*>(bufferStart),
            numSamples);

    int64_t presentationTimeUs;
    NS_ENSURE_SUCCESS(rv = aInfo->PresentationTimeUs(&presentationTimeUs), rv);

    RefPtr<AudioData> data = new AudioData(0, presentationTimeUs,
                                           aDuration.ToMicroseconds(),
                                           numFrames,
                                           Move(audio),
                                           numChannels,
                                           sampleRate);
    INVOKE_CALLBACK(Output, data);
    return NS_OK;
  }
开发者ID:ollie314，项目名称:gecko-dev，代码行数:51，代码来源:MediaCodecDataDecoder.cpp

示例13: FastSeek

TimeUnit
MP3TrackDemuxer::ScanUntil(TimeUnit aTime) {
  if (!aTime.ToMicroseconds()) {
    return FastSeek(aTime);
  }

  if (Duration(mFrameIndex) > aTime) {
    FastSeek(aTime);
  }

  MediaByteRange nextRange = FindNextFrame();
  while (SkipNextFrame(nextRange) && Duration(mFrameIndex + 1) < aTime) {
    nextRange = FindNextFrame();
  }

  return Duration(mFrameIndex);
}
开发者ID:giota-cliqz，项目名称:browser-f，代码行数:17，代码来源:MP3Demuxer.cpp

示例14: Duration

TimeUnit
WAVTrackDemuxer::FastSeek(const TimeUnit& aTime)
{
  if (aTime.ToMicroseconds()) {
    mChunkIndex = ChunkIndexFromTime(aTime);
  } else {
    mChunkIndex = 0;
  }

  mOffset = OffsetFromChunkIndex(mChunkIndex);

  if (mOffset > mFirstChunkOffset && StreamLength() > 0) {
    mOffset = std::min(StreamLength() - 1, mOffset);
  }

  return Duration(mChunkIndex);
}
开发者ID:Wafflespeanut，项目名称:gecko-dev，代码行数:17，代码来源:WaveDemuxer.cpp

示例15: TimeUnit

TimeUnit
MP3TrackDemuxer::FastSeek(TimeUnit aTime) {
  if (!aTime.ToMicroseconds()) {
    // Quick seek to the beginning of the stream.
    mOffset = mFirstFrameOffset;
    mFrameIndex = 0;
    mParser.EndFrameSession();
    return TimeUnit();
  }

  if (!mSamplesPerFrame || !mNumParsedFrames) {
    return TimeUnit::FromMicroseconds(-1);
  }

  const int64_t numFrames = aTime.ToSeconds() *
                            mSamplesPerSecond / mSamplesPerFrame;
  mOffset = mFirstFrameOffset + numFrames * AverageFrameLength();
  mFrameIndex = numFrames;

  mParser.EndFrameSession();

  return Duration(mFrameIndex);
}
开发者ID:giota-cliqz，项目名称:browser-f，代码行数:23，代码来源:MP3Demuxer.cpp


注：本文中的TimeUnit::ToMicroseconds方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。