1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #include "ADTSDecoder.h"
8 #include "MediaContainerType.h"
9 #include "PDMFactory.h"
10 
11 namespace mozilla {
12 
13 /* static */
IsEnabled()14 bool ADTSDecoder::IsEnabled() {
15   RefPtr<PDMFactory> platform = new PDMFactory();
16   return platform->SupportsMimeType(NS_LITERAL_CSTRING("audio/mp4a-latm"),
17                                     /* DecoderDoctorDiagnostics* */ nullptr);
18 }
19 
20 /* static */
IsSupportedType(const MediaContainerType & aContainerType)21 bool ADTSDecoder::IsSupportedType(const MediaContainerType& aContainerType) {
22   if (aContainerType.Type() == MEDIAMIMETYPE("audio/aac") ||
23       aContainerType.Type() == MEDIAMIMETYPE("audio/aacp") ||
24       aContainerType.Type() == MEDIAMIMETYPE("audio/x-aac")) {
25     return IsEnabled() && (aContainerType.ExtendedType().Codecs().IsEmpty() ||
26                            aContainerType.ExtendedType().Codecs() == "aac");
27   }
28 
29   return false;
30 }
31 
32 /* static */
GetTracksInfo(const MediaContainerType & aType)33 nsTArray<UniquePtr<TrackInfo>> ADTSDecoder::GetTracksInfo(
34     const MediaContainerType& aType) {
35   nsTArray<UniquePtr<TrackInfo>> tracks;
36   if (!IsSupportedType(aType)) {
37     return tracks;
38   }
39 
40   tracks.AppendElement(
41       CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
42           NS_LITERAL_CSTRING("audio/mp4a-latm"), aType));
43 
44   return tracks;
45 }
46 
47 }  // namespace mozilla
48