65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WaveDemuxer.h"
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#include "mozilla/Preferences.h"
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#include "MediaDecoderStateMachine.h"
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#include "WaveReader.h"
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#include "WaveDecoder.h"
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#include "MediaFormatReader.h"
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#include "PDMFactory.h"
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namespace mozilla {
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MediaDecoder*
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WaveDecoder::Clone(MediaDecoderOwner* aOwner)
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{
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return new WaveDecoder(aOwner);
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}
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MediaDecoderStateMachine*
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WaveDecoder::CreateStateMachine()
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{
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if (Preferences::GetBool("media.wave.decoder.enabled", false)) {
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RefPtr<MediaDecoderReader> reader =
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new MediaFormatReader(this, new WAVDemuxer(GetResource()));
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return new MediaDecoderStateMachine(this, reader);
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} else {
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return new MediaDecoderStateMachine(this, new WaveReader(this));
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}
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}
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/* static */
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bool
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WaveDecoder::IsEnabled()
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (!Preferences::GetBool("media.wave.decoder.enabled", false)) {
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return false;
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}
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PDMFactory::Init();
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RefPtr<PDMFactory> platform = new PDMFactory();
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return platform->SupportsMimeType(NS_LITERAL_CSTRING("audio/x-wav"));
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}
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/* static */
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bool
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WaveDecoder::CanHandleMediaType(const nsACString& aType,
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const nsAString& aCodecs)
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{
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if (aType.EqualsASCII("audio/wave") || aType.EqualsASCII("audio/x-wav") ||
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aType.EqualsASCII("audio/wav") || aType.EqualsASCII("audio/x-pn-wav")) {
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return IsEnabled() && (aCodecs.IsEmpty() ||
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aCodecs.EqualsASCII("1") ||
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aCodecs.EqualsASCII("6") ||
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aCodecs.EqualsASCII("7"));
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}
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return false;
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}
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} // namespace mozilla
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