gecko-dev/dom/media/mp3/MP3Decoder.cpp
JW Wang ab6f636e4a Bug 1378304. P2 - replace GetResource() with mResource in MediaDecoder sub-classes. r=jya
MozReview-Commit-ID: GRIBp3y0Cb7

--HG--
extra : rebase_source : c80386b223d90e8a9a7fb285a09edc526227bde8
extra : source : b74c63131f6ed873726519eed1a308aaaf35a6a9
2017-07-05 14:52:42 +08:00

56 lines
1.5 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 "MediaDecoderStateMachine.h"
#include "MediaFormatReader.h"
#include "MP3Demuxer.h"
#include "PDMFactory.h"
namespace mozilla {
ChannelMediaDecoder*
MP3Decoder::Clone(MediaDecoderInit& aInit)
{
if (!IsEnabled()) {
return nullptr;
}
return new MP3Decoder(aInit);
}
MediaDecoderStateMachine*
MP3Decoder::CreateStateMachine() {
RefPtr<MediaDecoderReader> reader =
new MediaFormatReader(this, new MP3Demuxer(mResource));
return new MediaDecoderStateMachine(this, reader);
}
/* 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;
}
} // namespace mozilla