зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.6 KiB
C++
79 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebMWriter.h"
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#include "EbmlComposer.h"
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#include "GeckoProfiler.h"
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namespace mozilla {
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WebMWriter::WebMWriter(uint32_t aTrackTypes) : ContainerWriter()
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{
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mMetadataRequiredFlag = aTrackTypes;
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mEbmlComposer = new EbmlComposer();
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}
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WebMWriter::~WebMWriter()
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{
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// Out-of-line dtor so mEbmlComposer nsAutoPtr can delete a complete type.
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}
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nsresult
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WebMWriter::WriteEncodedTrack(const EncodedFrameContainer& aData,
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uint32_t aFlags)
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{
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PROFILER_LABEL("WebMWriter", "SetMetadata",
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js::ProfileEntry::Category::OTHER);
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for (uint32_t i = 0 ; i < aData.GetEncodedFrames().Length(); i++) {
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mEbmlComposer->WriteSimpleBlock(aData.GetEncodedFrames().ElementAt(i).get());
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}
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return NS_OK;
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}
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nsresult
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WebMWriter::GetContainerData(nsTArray<nsTArray<uint8_t> >* aOutputBufs,
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uint32_t aFlags)
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{
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PROFILER_LABEL("WebMWriter", "GetContainerData",
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js::ProfileEntry::Category::OTHER);
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mEbmlComposer->ExtractBuffer(aOutputBufs, aFlags);
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if (aFlags & ContainerWriter::FLUSH_NEEDED) {
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mIsWritingComplete = true;
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}
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return NS_OK;
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}
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nsresult
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WebMWriter::SetMetadata(TrackMetadataBase* aMetadata)
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{
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MOZ_ASSERT(aMetadata);
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PROFILER_LABEL("WebMWriter", "SetMetadata",
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js::ProfileEntry::Category::OTHER);
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if (aMetadata->GetKind() == TrackMetadataBase::METADATA_VP8) {
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VP8Metadata* meta = static_cast<VP8Metadata*>(aMetadata);
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MOZ_ASSERT(meta, "Cannot find vp8 encoder metadata");
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mEbmlComposer->SetVideoConfig(meta->mWidth, meta->mHeight,
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meta->mDisplayWidth, meta->mDisplayHeight,
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meta->mEncodedFrameRate);
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mMetadataRequiredFlag = mMetadataRequiredFlag & ~ContainerWriter::CREATE_VIDEO_TRACK;
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}
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if (aMetadata->GetKind() == TrackMetadataBase::METADATA_VORBIS) {
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VorbisMetadata* meta = static_cast<VorbisMetadata*>(aMetadata);
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MOZ_ASSERT(meta, "Cannot find vorbis encoder metadata");
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mEbmlComposer->SetAudioConfig(meta->mSamplingFrequency, meta->mChannels, meta->mBitDepth);
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mEbmlComposer->SetAudioCodecPrivateData(meta->mData);
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mMetadataRequiredFlag = mMetadataRequiredFlag & ~ContainerWriter::CREATE_AUDIO_TRACK;
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}
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if (!mMetadataRequiredFlag) {
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mEbmlComposer->GenerateHeader();
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}
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return NS_OK;
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}
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} // mozilla namespace
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