mirror of
https://github.com/classilla/tenfourfox.git
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141 lines
4.3 KiB
C++
141 lines
4.3 KiB
C++
/* -*- 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 "AppleATDecoder.h"
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#include "AppleCMLinker.h"
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#include "AppleDecoderModule.h"
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#include "AppleVDADecoder.h"
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#include "AppleVDALinker.h"
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#include "AppleVTDecoder.h"
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#include "AppleVTLinker.h"
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#include "MacIOSurfaceImage.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/Logging.h"
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namespace mozilla {
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bool AppleDecoderModule::sInitialized = false;
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bool AppleDecoderModule::sIsCoreMediaAvailable = false;
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bool AppleDecoderModule::sIsVTAvailable = false;
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bool AppleDecoderModule::sIsVTHWAvailable = false;
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bool AppleDecoderModule::sIsVDAAvailable = false;
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bool AppleDecoderModule::sForceVDA = false;
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bool AppleDecoderModule::sCanUseHardwareVideoDecoder = true;
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AppleDecoderModule::AppleDecoderModule()
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{
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}
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AppleDecoderModule::~AppleDecoderModule()
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{
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}
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/* static */
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void
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AppleDecoderModule::Init()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Must be on main thread.");
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if (sInitialized) {
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return;
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}
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Preferences::AddBoolVarCache(&sForceVDA, "media.apple.forcevda", false);
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// Ensure IOSurface framework is loaded.
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MacIOSurfaceLib::LoadLibrary();
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const bool loaded = MacIOSurfaceLib::isInit();
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// dlopen VideoDecodeAcceleration.framework if it's available.
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sIsVDAAvailable = loaded && AppleVDALinker::Link();
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// dlopen CoreMedia.framework if it's available.
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sIsCoreMediaAvailable = AppleCMLinker::Link();
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// dlopen VideoToolbox.framework if it's available.
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// We must link both CM and VideoToolbox framework to allow for proper
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// paired Link/Unlink calls
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bool haveVideoToolbox = loaded && AppleVTLinker::Link();
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sIsVTAvailable = sIsCoreMediaAvailable && haveVideoToolbox;
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sIsVTHWAvailable = AppleVTLinker::skPropEnableHWAccel != nullptr;
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sCanUseHardwareVideoDecoder = loaded &&
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gfxPlatform::GetPlatform()->CanUseHardwareVideoDecoding();
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sInitialized = true;
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}
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nsresult
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AppleDecoderModule::Startup()
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{
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if (!sInitialized || (!sIsVDAAvailable && !sIsVTAvailable)) {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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already_AddRefed<MediaDataDecoder>
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AppleDecoderModule::CreateVideoDecoder(const VideoInfo& aConfig,
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layers::LayersBackend aLayersBackend,
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layers::ImageContainer* aImageContainer,
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FlushableTaskQueue* aVideoTaskQueue,
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MediaDataDecoderCallback* aCallback)
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{
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RefPtr<MediaDataDecoder> decoder;
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if (sIsVDAAvailable && (!sIsVTHWAvailable || sForceVDA)) {
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decoder =
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AppleVDADecoder::CreateVDADecoder(aConfig,
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aVideoTaskQueue,
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aCallback,
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aImageContainer);
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if (decoder) {
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return decoder.forget();
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}
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}
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// We fallback here if VDA isn't available, or is available but isn't
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// supported by the current platform.
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if (sIsVTAvailable) {
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decoder =
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new AppleVTDecoder(aConfig, aVideoTaskQueue, aCallback, aImageContainer);
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}
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return decoder.forget();
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}
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already_AddRefed<MediaDataDecoder>
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AppleDecoderModule::CreateAudioDecoder(const AudioInfo& aConfig,
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FlushableTaskQueue* aAudioTaskQueue,
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MediaDataDecoderCallback* aCallback)
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{
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RefPtr<MediaDataDecoder> decoder =
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new AppleATDecoder(aConfig, aAudioTaskQueue, aCallback);
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return decoder.forget();
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}
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bool
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AppleDecoderModule::SupportsMimeType(const nsACString& aMimeType) const
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{
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return (sIsCoreMediaAvailable &&
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(aMimeType.EqualsLiteral("audio/mpeg") ||
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aMimeType.EqualsLiteral("audio/mp4a-latm"))) ||
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((sIsVTAvailable || sIsVDAAvailable) &&
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(aMimeType.EqualsLiteral("video/mp4") ||
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aMimeType.EqualsLiteral("video/avc")));
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}
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PlatformDecoderModule::ConversionRequired
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AppleDecoderModule::DecoderNeedsConversion(const TrackInfo& aConfig) const
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{
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if (aConfig.IsVideo()) {
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return kNeedAVCC;
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} else {
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return kNeedNone;
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}
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}
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} // namespace mozilla
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