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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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45
dom/media/directshow/DirectShowDecoder.h Normal file
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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/. */
#if !defined(DirectShowDecoder_h_)
#define DirectShowDecoder_h_
#include "MediaDecoder.h"
namespace mozilla {
// Decoder that uses DirectShow to playback MP3 files only.
class DirectShowDecoder : public MediaDecoder
{
public:
explicit DirectShowDecoder(MediaDecoderOwner* aOwner);
virtual ~DirectShowDecoder();
MediaDecoder* Clone(MediaDecoderOwner* aOwner) override {
if (!IsEnabled()) {
return nullptr;
}
return new DirectShowDecoder(aOwner);
}
MediaDecoderStateMachine* CreateStateMachine() override;
// Returns true if aType is a MIME type that we render with the
// DirectShow backend. If aCodecList is non null,
// it is filled with a (static const) null-terminated list of strings
// denoting the codecs we'll playback. Note that playback is strictly
// limited to MP3 only.
static bool GetSupportedCodecs(const nsACString& aType,
char const *const ** aCodecList);
// Returns true if the DirectShow backend is preffed on.
static bool IsEnabled();
};
} // namespace mozilla
#endif