本文整理汇总了C++中VideoSegment::AppendFrom方法的典型用法代码示例。如果您正苦于以下问题：C++ VideoSegment::AppendFrom方法的具体用法？C++ VideoSegment::AppendFrom怎么用？C++ VideoSegment::AppendFrom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VideoSegment的用法示例。
在下文中一共展示了VideoSegment::AppendFrom方法的1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: mon
nsresult
OmxVideoTrackEncoder::GetEncodedTrack(EncodedFrameContainer& aData)
{
VideoSegment segment;
{
// Move all the samples from mRawSegment to segment. We only hold the
// monitor in this block.
ReentrantMonitorAutoEnter mon(mReentrantMonitor);
// Wait if mEncoder is not initialized nor is being canceled.
while (!mCanceled && (!mInitialized ||
(mRawSegment.GetDuration() == 0 && !mEndOfStream))) {
mReentrantMonitor.Wait();
}
if (mCanceled || mEncodingComplete) {
return NS_ERROR_FAILURE;
}
segment.AppendFrom(&mRawSegment);
}
nsresult rv;
// Start queuing raw frames to the input buffers of OMXCodecWrapper.
VideoSegment::ChunkIterator iter(segment);
while (!iter.IsEnded()) {
VideoChunk chunk = *iter;
// Send only the unique video frames to OMXCodecWrapper.
if (mLastFrame != chunk.mFrame) {
uint64_t totalDurationUs = mTotalFrameDuration * USECS_PER_S / mTrackRate;
layers::Image* img = (chunk.IsNull() || chunk.mFrame.GetForceBlack()) ?
nullptr : chunk.mFrame.GetImage();
rv = mEncoder->Encode(img, mFrameWidth, mFrameHeight, totalDurationUs);
NS_ENSURE_SUCCESS(rv, rv);
}
mLastFrame.TakeFrom(&chunk.mFrame);
mTotalFrameDuration += chunk.GetDuration();
iter.Next();
}
// Send the EOS signal to OMXCodecWrapper.
if (mEndOfStream && iter.IsEnded() && !mEosSetInEncoder) {
uint64_t totalDurationUs = mTotalFrameDuration * USECS_PER_S / mTrackRate;
layers::Image* img = (!mLastFrame.GetImage() || mLastFrame.GetForceBlack())
? nullptr : mLastFrame.GetImage();
rv = mEncoder->Encode(img, mFrameWidth, mFrameHeight, totalDurationUs,
OMXCodecWrapper::BUFFER_EOS);
NS_ENSURE_SUCCESS(rv, rv);
// Keep sending EOS signal until OMXVideoEncoder gets it.
mEosSetInEncoder = true;
}
// Dequeue an encoded frame from the output buffers of OMXCodecWrapper.
nsTArray<uint8_t> buffer;
int outFlags = 0;
int64_t outTimeStampUs = 0;
rv = mEncoder->GetNextEncodedFrame(&buffer, &outTimeStampUs, &outFlags,
GET_ENCODED_VIDEO_FRAME_TIMEOUT);
NS_ENSURE_SUCCESS(rv, rv);
if (!buffer.IsEmpty()) {
nsRefPtr<EncodedFrame> videoData = new EncodedFrame();
if (outFlags & OMXCodecWrapper::BUFFER_CODEC_CONFIG) {
videoData->SetFrameType(EncodedFrame::AVC_CSD);
} else {
videoData->SetFrameType((outFlags & OMXCodecWrapper::BUFFER_SYNC_FRAME) ?
EncodedFrame::AVC_I_FRAME : EncodedFrame::AVC_P_FRAME);
}
videoData->SwapInFrameData(buffer);
videoData->SetTimeStamp(outTimeStampUs);
aData.AppendEncodedFrame(videoData);
}
if (outFlags & OMXCodecWrapper::BUFFER_EOS) {
mEncodingComplete = true;
OMX_LOG("Done encoding video.");
}
return NS_OK;
}