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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at */
#ifndef DecoderTraits_h_
#define DecoderTraits_h_
#include "mozilla/UniquePtr.h"
#include "nsStringFwd.h"
#include "nsTArray.h"
namespace mozilla {
class DecoderDoctorDiagnostics;
class MediaContainerType;
class MediaDataDemuxer;
struct MediaFormatReaderInit;
class MediaFormatReader;
class MediaResource;
class TrackInfo;
class DecoderTraits {
// Returns the CanPlayStatus indicating if we can handle this container type.
static CanPlayStatus CanHandleContainerType(
const MediaContainerType& aContainerType,
DecoderDoctorDiagnostics* aDiagnostics);
// Returns true if we should handle this MIME type when it appears
// as an <object> or as a toplevel page. If, in practice, our support
// for the type is more limited than appears in the wild, we should return
// false here even if CanHandleMediaType would return true.
static bool ShouldHandleMediaType(const char* aMIMEType,
DecoderDoctorDiagnostics* aDiagnostics);
// Create a demuxer for the given MIME type aType. Returns null if we
// were unable to create the demuxer.
static already_AddRefed<MediaDataDemuxer> CreateDemuxer(
const MediaContainerType& aType, MediaResource* aResource);
// Create a reader for thew given MIME type aType. Returns null
// if we were unable to create the reader.
static MediaFormatReader* CreateReader(const MediaContainerType& aType,
MediaFormatReaderInit& aInit);
// Returns true if MIME type aType is supported in video documents,
// or false otherwise. Not all platforms support all MIME types, and
// vice versa.
static bool IsSupportedInVideoDocument(const nsACString& aType);
// Convenience function that returns false if MOZ_FMP4 is not defined,
// otherwise defers to MP4Decoder::IsSupportedType().
static bool IsMP4SupportedType(const MediaContainerType& aType,
DecoderDoctorDiagnostics* aDiagnostics);
// Returns true if aType is MIME type of hls.
static bool IsHttpLiveStreamingType(const MediaContainerType& aType);
// Returns true if aType is matroska type.
static bool IsMatroskaType(const MediaContainerType& aType);
static bool IsSupportedType(const MediaContainerType& aType);
// Returns an array of all TrackInfo objects described by this type.
static nsTArray<UniquePtr<TrackInfo>> GetTracksInfo(
const MediaContainerType& aType);
} // namespace mozilla