gecko-dev/dom/media/MediaStreamListener.cpp

59 строки
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* 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 "MediaStreamListener.h"
#include "AudioSegment.h"
#include "VideoSegment.h"
#include "StreamTracks.h"
namespace mozilla {
void
DirectMediaStreamTrackListener::MirrorAndDisableSegment(AudioSegment& aFrom,
AudioSegment& aTo)
{
aTo.Clear();
aTo.AppendNullData(aFrom.GetDuration());
}
void
DirectMediaStreamTrackListener::MirrorAndDisableSegment(VideoSegment& aFrom,
VideoSegment& aTo)
{
aTo.Clear();
for (VideoSegment::ChunkIterator it(aFrom); !it.IsEnded(); it.Next()) {
aTo.AppendFrame(do_AddRef(it->mFrame.GetImage()), it->GetDuration(),
it->mFrame.GetIntrinsicSize(), it->GetPrincipalHandle(), true);
}
}
void
DirectMediaStreamTrackListener::NotifyRealtimeTrackDataAndApplyTrackDisabling(MediaStreamGraph* aGraph,
StreamTime aTrackOffset,
MediaSegment& aMedia)
{
if (mDisabledCount == 0) {
NotifyRealtimeTrackData(aGraph, aTrackOffset, aMedia);
return;
}
if (!mMedia) {
mMedia = aMedia.CreateEmptyClone();
}
if (aMedia.GetType() == MediaSegment::AUDIO) {
MirrorAndDisableSegment(static_cast<AudioSegment&>(aMedia),
static_cast<AudioSegment&>(*mMedia));
} else if (aMedia.GetType() == MediaSegment::VIDEO) {
MirrorAndDisableSegment(static_cast<VideoSegment&>(aMedia),
static_cast<VideoSegment&>(*mMedia));
} else {
MOZ_CRASH("Unsupported media type");
}
NotifyRealtimeTrackData(aGraph, aTrackOffset, *mMedia);
}
} // namespace mozilla