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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 */
#if !defined(PDMFactory_h_)
# define PDMFactory_h_
# include <utility>
# include "DecoderDoctorDiagnostics.h"
# include "PlatformDecoderModule.h"
# include "mozilla/AlreadyAddRefed.h"
# include "mozilla/EnumSet.h"
# include "mozilla/MozPromise.h"
# include "mozilla/RefPtr.h"
# include "nsISupports.h"
# include "nsStringFwd.h"
# include "nsTArray.h"
namespace mozilla {
class CDMProxy;
class MediaDataDecoder;
class MediaResult;
class StaticMutex;
template <typename T>
struct MaxEnumValue;
struct CreateDecoderParams;
struct CreateDecoderParamsForAsync;
struct SupportDecoderParams;
enum class RemoteDecodeIn;
using PDMCreateDecoderPromise = PlatformDecoderModule::CreateDecoderPromise;
class PDMFactory final {
// Factory method that creates the appropriate PlatformDecoderModule for
// the platform we're running on.
RefPtr<PDMCreateDecoderPromise> CreateDecoder(
const CreateDecoderParams& aParams);
bool SupportsMimeType(const nsACString& aMimeType) const;
bool Supports(const SupportDecoderParams& aParams,
DecoderDoctorDiagnostics* aDiagnostics) const;
// Creates a PlatformDecoderModule that uses a CDMProxy to decrypt or
// decrypt-and-decode EME encrypted content. If the CDM only decrypts and
// does not decode, we create a PDM and use that to create MediaDataDecoders
// that we use on on aTaskQueue to decode the decrypted stream.
// This is called on the decode task queue.
void SetCDMProxy(CDMProxy* aProxy);
static constexpr int kYUV400 = 0;
static constexpr int kYUV420 = 1;
static constexpr int kYUV422 = 2;
static constexpr int kYUV444 = 3;
* All the codecs we support
enum class MediaCodecs {
using MediaCodecsSupported = EnumSet<MediaCodecs>;
static MediaCodecsSupported Supported(bool aForceRefresh = false);
static bool SupportsMimeType(const nsACString& aMimeType,
const MediaCodecsSupported& aSupported);
static bool AllDecodersAreRemote();
virtual ~PDMFactory();
void CreatePDMs();
void CreateNullPDM();
void CreateGpuPDMs();
void CreateRddPDMs();
void CreateContentPDMs();
void CreateDefaultPDMs();
template <typename DECODER_MODULE, typename... ARGS>
bool CreateAndStartupPDM(ARGS&&... aArgs) {
return StartupPDM(DECODER_MODULE::Create(std::forward<ARGS>(aArgs)...));
// Startup the provided PDM and add it to our list if successful.
bool StartupPDM(already_AddRefed<PlatformDecoderModule> aPDM,
bool aInsertAtBeginning = false);
// Returns the first PDM in our list supporting the mimetype.
already_AddRefed<PlatformDecoderModule> GetDecoderModule(
const SupportDecoderParams& aParams,
DecoderDoctorDiagnostics* aDiagnostics) const;
RefPtr<PDMCreateDecoderPromise> CreateDecoderWithPDM(
PlatformDecoderModule* aPDM, const CreateDecoderParams& aParams);
RefPtr<PDMCreateDecoderPromise> CheckAndMaybeCreateDecoder(
CreateDecoderParamsForAsync&& aParams, uint32_t aIndex,
Maybe<MediaResult> aEarlierError = Nothing());
nsTArray<RefPtr<PlatformDecoderModule>> mCurrentPDMs;
RefPtr<PlatformDecoderModule> mEMEPDM;
RefPtr<PlatformDecoderModule> mNullPDM;
DecoderDoctorDiagnostics::FlagsSet mFailureFlags;
friend class RemoteVideoDecoderParent;
static void EnsureInit();
// Used for IPDL serialization.
// The 'value' have to be the biggest enum from MediaCodecs.
template <>
struct MaxEnumValue<PDMFactory::MediaCodecs> {
static constexpr unsigned int value =
static_cast<unsigned int>(PDMFactory::MediaCodecs::SENTINEL);
} // namespace mozilla
#endif /* PDMFactory_h_ */