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d3a0f99985
Also remove related preference. MozReview-Commit-ID: D5pkyPXAoG9 --HG-- extra : rebase_source : 845d14a7059ae54d939300bb0f7f51664da05ff4
80 lines
2.3 KiB
C++
80 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 "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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#include "nsContentTypeParser.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(GetResource());
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RefPtr<MediaFormatReader> reader =
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new MediaFormatReader(this, demuxer, GetVideoFrameContainer());
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demuxer->SetChainingEvents(&reader->TimedMetadataProducer(),
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&reader->MediaNotSeekableProducer());
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return new MediaDecoderStateMachine(this, reader);
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}
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/* static */
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bool
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OggDecoder::IsEnabled()
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{
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return MediaPrefs::OggEnabled();
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}
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/* static */
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bool
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OggDecoder::CanHandleMediaType(const nsACString& aMIMETypeExcludingCodecs,
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const nsAString& aCodecs)
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{
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if (!IsEnabled()) {
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return false;
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}
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const bool isOggAudio = aMIMETypeExcludingCodecs.EqualsASCII("audio/ogg");
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const bool isOggVideo =
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aMIMETypeExcludingCodecs.EqualsASCII("video/ogg") ||
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aMIMETypeExcludingCodecs.EqualsASCII("application/ogg");
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if (!isOggAudio && !isOggVideo) {
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return false;
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}
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nsTArray<nsCString> codecMimes;
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if (aCodecs.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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nsTArray<nsString> codecs;
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if (!ParseCodecsString(aCodecs, codecs)) {
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return false;
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}
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for (const nsString& codec : codecs) {
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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 content type, not in an audio
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// content 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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