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ef025c6fcf
MozReview-Commit-ID: Jf5pCxkhexg --HG-- extra : rebase_source : 3ec9423d4d0f3b60ee9e5f6f19af18188530e1d9 extra : source : 4fbc225bfc79abacaf47ffd4405ef2d6711dea32
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaPrefs.h"
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#include "MediaContainerType.h"
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#include "MediaDecoderStateMachine.h"
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#include "MediaFormatReader.h"
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#include "OggDemuxer.h"
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#include "OggDecoder.h"
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namespace mozilla {
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MediaDecoderStateMachine* OggDecoder::CreateStateMachine()
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{
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RefPtr<OggDemuxer> demuxer = new OggDemuxer(mResource);
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MediaFormatReaderInit init;
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init.mVideoFrameContainer = GetVideoFrameContainer();
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init.mKnowsCompositor = GetCompositor();
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init.mCrashHelper = GetOwner()->CreateGMPCrashHelper();
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init.mFrameStats = mFrameStats;
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mReader = new MediaFormatReader(init, demuxer);
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demuxer->SetChainingEvents(&mReader->TimedMetadataProducer(),
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&mReader->MediaNotSeekableProducer());
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return new MediaDecoderStateMachine(this, mReader);
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}
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/* static */
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bool
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OggDecoder::IsSupportedType(const MediaContainerType& aContainerType)
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{
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if (!MediaPrefs::OggEnabled()) {
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return false;
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}
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if (aContainerType.Type() != MEDIAMIMETYPE("audio/ogg") &&
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aContainerType.Type() != MEDIAMIMETYPE("video/ogg") &&
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aContainerType.Type() != MEDIAMIMETYPE("application/ogg")) {
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return false;
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}
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const bool isOggVideo = (aContainerType.Type() != MEDIAMIMETYPE("audio/ogg"));
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const MediaCodecs& codecs = aContainerType.ExtendedType().Codecs();
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if (codecs.IsEmpty()) {
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// WebM guarantees that the only codecs it contained are vp8, vp9, opus or vorbis.
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return true;
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}
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// Verify that all the codecs specified are ones that we expect that
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// we can play.
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for (const auto& codec : codecs.Range()) {
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if ((IsOpusEnabled() && codec.EqualsLiteral("opus")) ||
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codec.EqualsLiteral("vorbis") ||
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(MediaPrefs::FlacInOgg() && codec.EqualsLiteral("flac"))) {
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continue;
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}
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// Note: Only accept Theora in a video container type, not in an audio
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// container type.
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if (isOggVideo && codec.EqualsLiteral("theora")) {
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continue;
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}
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// Some unsupported codec.
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return false;
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}
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return true;
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}
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} // namespace mozilla
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