mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
138 lines
3.6 KiB
C++
138 lines
3.6 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 "WMF.h"
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#include "WMFDecoder.h"
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#include "WMFReader.h"
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#include "WMFUtils.h"
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#include "MediaDecoderStateMachine.h"
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#include "mozilla/Preferences.h"
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#include "WinUtils.h"
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#ifdef MOZ_DIRECTSHOW
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#include "DirectShowDecoder.h"
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#endif
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using namespace mozilla::widget;
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namespace mozilla {
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MediaDecoderStateMachine* WMFDecoder::CreateStateMachine()
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{
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return new MediaDecoderStateMachine(this, new WMFReader(this));
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}
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/* static */
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bool
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WMFDecoder::IsMP3Supported()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Must be on main thread.");
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#ifdef MOZ_DIRECTSHOW
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if (DirectShowDecoder::IsEnabled()) {
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// DirectShowDecoder is enabled, we use that in preference to the WMF
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// backend.
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return false;
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}
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#endif
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if (!MediaDecoder::IsWMFEnabled()) {
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return false;
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}
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if (WinUtils::GetWindowsVersion() != WinUtils::WIN7_VERSION) {
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return true;
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}
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// We're on Windows 7. MP3 support is disabled if no service pack
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// is installed, as it's crashy on Win7 SP0.
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UINT spMajorVer = 0, spMinorVer = 0;
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if (!WinUtils::GetWindowsServicePackVersion(spMajorVer, spMinorVer)) {
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// Um... We can't determine the service pack version... Just block
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// MP3 as a precaution...
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return false;
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}
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return spMajorVer != 0;
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}
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bool
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WMFDecoder::GetSupportedCodecs(const nsACString& aType,
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char const *const ** aCodecList)
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{
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if (!MediaDecoder::IsWMFEnabled() ||
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NS_FAILED(LoadDLLs()))
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return false;
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// Assume that if LoadDLLs() didn't fail, we can playback the types that
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// we know should be supported by Windows Media Foundation.
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static char const *const mp3AudioCodecs[] = {
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"mp3",
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nullptr
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};
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if ((aType.EqualsASCII("audio/mpeg") || aType.EqualsASCII("audio/mp3")) &&
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IsMP3Supported()) {
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// Note: We block MP3 playback on Window 7 SP0 since it seems to crash
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// in some circumstances.
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if (aCodecList) {
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*aCodecList = mp3AudioCodecs;
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}
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return true;
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}
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// AAC in M4A.
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static char const *const aacAudioCodecs[] = {
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"mp4a.40.2", // AAC-LC
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nullptr
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};
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if (aType.EqualsASCII("audio/mp4") ||
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aType.EqualsASCII("audio/x-m4a")) {
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if (aCodecList) {
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*aCodecList = aacAudioCodecs;
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}
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return true;
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}
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// H.264 + AAC in MP4.
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static char const *const H264Codecs[] = {
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"avc1.42E01E", // H.264 Constrained Baseline Profile Level 3.0
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"avc1.42001E", // H.264 Baseline Profile Level 3.0
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"avc1.58A01E", // H.264 Extended Profile Level 3.0
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"avc1.4D401E", // H.264 Main Profile Level 3.0
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"avc1.64001E", // H.264 High Profile Level 3.0
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"avc1.64001F", // H.264 High Profile Level 3.1
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"mp4a.40.2", // AAC-LC
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nullptr
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};
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if (aType.EqualsASCII("video/mp4")) {
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if (aCodecList) {
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*aCodecList = H264Codecs;
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}
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return true;
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}
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return false;
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}
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nsresult
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WMFDecoder::LoadDLLs()
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{
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return SUCCEEDED(wmf::LoadDLLs()) ? NS_OK : NS_ERROR_FAILURE;
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}
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void
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WMFDecoder::UnloadDLLs()
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{
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wmf::UnloadDLLs();
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}
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/* static */
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bool
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WMFDecoder::IsEnabled()
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{
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// We only use WMF on Windows Vista and up
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return WinUtils::GetWindowsVersion() >= WinUtils::VISTA_VERSION &&
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Preferences::GetBool("media.windows-media-foundation.enabled");
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}
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} // namespace mozilla
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