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ecfb205472
Pass declared-but-yet-undefined DecoderDoctorDiagnostics pointer to various routines that contribute to deciding if a media format can be played, and those that create decoders. Points where a DecoderDoctorDiagnostics can be injected are currently marked with "/* DecoderDoctorDiagnostics* */ nullptr", and some will be used in following patches. MozReview-Commit-ID: 7u37bvY4CpW
56 lines
1.8 KiB
C++
56 lines
1.8 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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#if !defined(MP4Decoder_h_)
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#define MP4Decoder_h_
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#include "MediaDecoder.h"
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#include "MediaFormatReader.h"
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#include "mozilla/dom/Promise.h"
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namespace mozilla {
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// Decoder that uses a bundled MP4 demuxer and platform decoders to play MP4.
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class MP4Decoder : public MediaDecoder
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{
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public:
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explicit MP4Decoder(MediaDecoderOwner* aOwner);
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MediaDecoder* Clone(MediaDecoderOwner* aOwner) override {
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if (!IsEnabled()) {
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return nullptr;
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}
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return new MP4Decoder(aOwner);
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}
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MediaDecoderStateMachine* CreateStateMachine() override;
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// Returns true if aMIMEType is a type that we think we can render with the
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// a MP4 platform decoder backend. If aCodecs is non emtpy, it is filled
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// with a comma-delimited list of codecs to check support for. Notes in
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// out params wether the codecs string contains AAC or H.264.
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static bool CanHandleMediaType(const nsACString& aMIMETypeExcludingCodecs,
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const nsAString& aCodecs,
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DecoderDoctorDiagnostics* aDiagnostics);
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static bool CanHandleMediaType(const nsAString& aMIMEType,
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DecoderDoctorDiagnostics* aDiagnostics);
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// Returns true if the MP4 backend is preffed on.
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static bool IsEnabled();
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static already_AddRefed<dom::Promise>
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IsVideoAccelerated(layers::LayersBackend aBackend, nsIGlobalObject* aParent);
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void GetMozDebugReaderData(nsAString& aString) override;
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private:
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RefPtr<MediaFormatReader> mReader;
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};
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} // namespace mozilla
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#endif
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