gecko-dev/dom/media/mp3/MP3Decoder.cpp

46 строки
1.4 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/. */
#include "MP3Decoder.h"
#include "MediaContainerType.h"
#include "PDMFactory.h"
namespace mozilla {
/* static */
bool MP3Decoder::IsEnabled() {
RefPtr<PDMFactory> platform = new PDMFactory();
return platform->SupportsMimeType(NS_LITERAL_CSTRING("audio/mpeg"),
/* DecoderDoctorDiagnostics* */ nullptr);
}
/* static */
bool MP3Decoder::IsSupportedType(const MediaContainerType& aContainerType) {
if (aContainerType.Type() == MEDIAMIMETYPE("audio/mp3") ||
aContainerType.Type() == MEDIAMIMETYPE("audio/mpeg")) {
return IsEnabled() && (aContainerType.ExtendedType().Codecs().IsEmpty() ||
aContainerType.ExtendedType().Codecs() == "mp3");
}
return false;
}
/* static */
nsTArray<UniquePtr<TrackInfo>> MP3Decoder::GetTracksInfo(
const MediaContainerType& aType) {
nsTArray<UniquePtr<TrackInfo>> tracks;
if (!IsSupportedType(aType)) {
return tracks;
}
tracks.AppendElement(
CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
NS_LITERAL_CSTRING("audio/mpeg"), aType));
return tracks;
}
} // namespace mozilla