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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 http://mozilla.org/MPL/2.0/. */
#ifndef DecoderDoctorDiagnostics_h_
#define DecoderDoctorDiagnostics_h_
#include "nsString.h"
class nsIDocument;
namespace mozilla {
struct DecoderDoctorEvent {
enum Domain {
eAudioSinkStartup,
} mDomain;
nsresult mResult;
};
// DecoderDoctorDiagnostics class, used to gather data from PDMs/DecoderTraits,
// and then notify the user about issues preventing (or worsening) playback.
//
// The expected usage is:
// 1. Instantiate a DecoderDoctorDiagnostics in a function (close to the point
// where a webpage is trying to know whether some MIME types can be played,
// or trying to play a media file).
// 2. Pass a pointer to the DecoderDoctorDiagnostics structure to one of the
// CanPlayStatus/IsTypeSupported/(others?). During that call, some PDMs may
// add relevant diagnostic information.
// 3. Analyze the collected diagnostics, and optionally dispatch an event to the
// UX, to notify the user about potential playback issues and how to resolve
// them.
//
// This class' methods must be called from the main thread.
class DecoderDoctorDiagnostics
{
public:
// Store the diagnostic information collected so far on a document for a
// given format. All diagnostics for a document will be analyzed together
// within a short timeframe.
// Should only be called once.
void StoreFormatDiagnostics(nsIDocument* aDocument,
const nsAString& aFormat,
bool aCanPlay,
const char* aCallSite);
void StoreMediaKeySystemAccess(nsIDocument* aDocument,
const nsAString& aKeySystem,
bool aIsSupported,
const char* aCallSite);
void StoreEvent(nsIDocument* aDocument,
const DecoderDoctorEvent& aEvent,
const char* aCallSite);
enum DiagnosticsType {
eUnsaved,
eFormatSupportCheck,
eMediaKeySystemAccessRequest,
eEvent
};
DiagnosticsType Type() const { return mDiagnosticsType; }
// Description string, for logging purposes; only call on stored diags.
nsCString GetDescription() const;
// Methods to record diagnostic information:
const nsAString& Format() const { return mFormat; }
bool CanPlay() const { return mCanPlay; }
void SetWMFFailedToLoad() { mWMFFailedToLoad = true; }
bool DidWMFFailToLoad() const { return mWMFFailedToLoad; }
void SetFFmpegFailedToLoad() { mFFmpegFailedToLoad = true; }
bool DidFFmpegFailToLoad() const { return mFFmpegFailedToLoad; }
void SetGMPPDMFailedToStartup() { mGMPPDMFailedToStartup = true; }
bool DidGMPPDMFailToStartup() const { return mGMPPDMFailedToStartup; }
void SetVideoNotSupported() { mVideoNotSupported = true; }
void SetAudioNotSupported() { mAudioNotSupported = true; }
void SetGMP(const nsACString& aGMP) { mGMP = aGMP; }
const nsACString& GMP() const { return mGMP; }
const nsAString& KeySystem() const { return mKeySystem; }
bool IsKeySystemSupported() const { return mIsKeySystemSupported; }
enum KeySystemIssue {
eUnset,
eWidevineWithNoWMF
};
void SetKeySystemIssue(KeySystemIssue aKeySystemIssue)
{
mKeySystemIssue = aKeySystemIssue;
}
KeySystemIssue GetKeySystemIssue() const
{
return mKeySystemIssue;
}
DecoderDoctorEvent event() const
{
return mEvent;
}
private:
// Currently-known type of diagnostics. Set from one of the 'Store...' methods.
// This helps ensure diagnostics are only stored once,
// and makes it easy to know what information they contain.
DiagnosticsType mDiagnosticsType = eUnsaved;
nsString mFormat;
// True if there is at least one decoder that can play that format.
bool mCanPlay = false;
bool mWMFFailedToLoad = false;
bool mFFmpegFailedToLoad = false;
bool mGMPPDMFailedToStartup = false;
bool mVideoNotSupported = false;
bool mAudioNotSupported = false;
nsCString mGMP;
nsString mKeySystem;
bool mIsKeySystemSupported = false;
KeySystemIssue mKeySystemIssue = eUnset;
DecoderDoctorEvent mEvent;
};
} // namespace mozilla
#endif
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