зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
3.5 KiB
C++
88 строки
3.5 KiB
C++
/* -*- 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 DecoderTraits_h_
|
|
#define DecoderTraits_h_
|
|
|
|
#include "nsCOMPtr.h"
|
|
|
|
class nsAString;
|
|
class nsACString;
|
|
|
|
namespace mozilla {
|
|
|
|
class AbstractMediaDecoder;
|
|
class DecoderDoctorDiagnostics;
|
|
class MediaDecoder;
|
|
class MediaDecoderOwner;
|
|
class MediaDecoderReader;
|
|
|
|
enum CanPlayStatus {
|
|
CANPLAY_NO,
|
|
CANPLAY_MAYBE,
|
|
CANPLAY_YES
|
|
};
|
|
|
|
class DecoderTraits {
|
|
public:
|
|
// Returns the CanPlayStatus indicating if we can handle this
|
|
// MIME type. The MIME type should not include the codecs parameter.
|
|
// That parameter should be passed in aRequestedCodecs, and will only be
|
|
// used if whether a given MIME type being handled depends on the
|
|
// codec that will be used. If the codecs parameter has not been
|
|
// specified, pass false in aHaveRequestedCodecs.
|
|
static CanPlayStatus CanHandleMediaType(const char* aMIMEType,
|
|
bool aHaveRequestedCodecs,
|
|
const nsAString& aRequestedCodecs,
|
|
DecoderDoctorDiagnostics* aDiagnostics);
|
|
|
|
// Returns the CanPlayStatus indicating if we can handle this MIME type and
|
|
// codecs type natively, excluding any plugins-based reader (such as
|
|
// GStreamer)
|
|
// The MIME type should not include the codecs parameter.
|
|
// That parameter is passed in aRequestedCodecs.
|
|
static CanPlayStatus CanHandleCodecsType(const char* aMIMEType,
|
|
const nsAString& aRequestedCodecs,
|
|
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 decoder for the given aType. Returns null if we
|
|
// were unable to create the decoder.
|
|
static already_AddRefed<MediaDecoder> CreateDecoder(const nsACString& aType,
|
|
MediaDecoderOwner* aOwner,
|
|
DecoderDoctorDiagnostics* aDiagnostics);
|
|
|
|
// Create a reader for thew given MIME type aType. Returns null
|
|
// if we were unable to create the reader.
|
|
static MediaDecoderReader* CreateReader(const nsACString& aType,
|
|
AbstractMediaDecoder* aDecoder);
|
|
|
|
// 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);
|
|
|
|
// Returns true if we should not start decoder until we receive
|
|
// OnConnected signal. (currently RTSP only)
|
|
static bool DecoderWaitsForOnConnected(const nsACString& aType);
|
|
|
|
static bool IsWebMTypeAndEnabled(const nsACString& aType);
|
|
static bool IsWebMAudioType(const nsACString& aType);
|
|
static bool IsMP4TypeAndEnabled(const nsACString& aType,
|
|
DecoderDoctorDiagnostics* aDiagnostics);
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif
|
|
|