gecko-dev/dom/media/ADTSDecoder.cpp

48 строки
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "ADTSDecoder.h"
#include "MediaContainerType.h"
#include "PDMFactory.h"
namespace mozilla {
/* static */
bool ADTSDecoder::IsEnabled() {
RefPtr<PDMFactory> platform = new PDMFactory();
return platform->SupportsMimeType("audio/mp4a-latm"_ns,
/* DecoderDoctorDiagnostics* */ nullptr);
}
/* static */
bool ADTSDecoder::IsSupportedType(const MediaContainerType& aContainerType) {
if (aContainerType.Type() == MEDIAMIMETYPE("audio/aac") ||
aContainerType.Type() == MEDIAMIMETYPE("audio/aacp") ||
aContainerType.Type() == MEDIAMIMETYPE("audio/x-aac")) {
return IsEnabled() && (aContainerType.ExtendedType().Codecs().IsEmpty() ||
aContainerType.ExtendedType().Codecs() == "aac");
}
return false;
}
/* static */
nsTArray<UniquePtr<TrackInfo>> ADTSDecoder::GetTracksInfo(
const MediaContainerType& aType) {
nsTArray<UniquePtr<TrackInfo>> tracks;
if (!IsSupportedType(aType)) {
return tracks;
}
tracks.AppendElement(
CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
"audio/mp4a-latm"_ns, aType));
return tracks;
}
} // namespace mozilla