зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
4.1 KiB
C++
117 строки
4.1 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 {
|
|
|
|
#ifdef LOG
|
|
#undef LOG
|
|
#endif
|
|
|
|
#define LOG(type, msg) MOZ_LOG(gMediaStreamGraphLog, type, msg)
|
|
|
|
void
|
|
DirectMediaStreamTrackListener::MirrorAndDisableSegment(AudioSegment& aFrom,
|
|
AudioSegment& aTo)
|
|
{
|
|
aTo.Clear();
|
|
aTo.AppendNullData(aFrom.GetDuration());
|
|
}
|
|
|
|
void
|
|
DirectMediaStreamTrackListener::MirrorAndDisableSegment(VideoSegment& aFrom,
|
|
VideoSegment& aTo,
|
|
DisabledTrackMode aMode)
|
|
{
|
|
aTo.Clear();
|
|
if (aMode == DisabledTrackMode::SILENCE_BLACK) {
|
|
for (VideoSegment::ChunkIterator it(aFrom); !it.IsEnded(); it.Next()) {
|
|
aTo.AppendFrame(do_AddRef(it->mFrame.GetImage()),
|
|
it->GetDuration(),
|
|
it->mFrame.GetIntrinsicSize(),
|
|
it->GetPrincipalHandle(),
|
|
true);
|
|
}
|
|
} else if (aMode == DisabledTrackMode::SILENCE_FREEZE) {
|
|
aTo.AppendNullData(aFrom.GetDuration());
|
|
}
|
|
}
|
|
|
|
void
|
|
DirectMediaStreamTrackListener::NotifyRealtimeTrackDataAndApplyTrackDisabling(MediaStreamGraph* aGraph,
|
|
StreamTime aTrackOffset,
|
|
MediaSegment& aMedia)
|
|
{
|
|
if (mDisabledFreezeCount == 0 && mDisabledBlackCount == 0) {
|
|
NotifyRealtimeTrackData(aGraph, aTrackOffset, aMedia);
|
|
return;
|
|
}
|
|
|
|
DisabledTrackMode mode = mDisabledBlackCount > 0
|
|
? DisabledTrackMode::SILENCE_BLACK
|
|
: DisabledTrackMode::SILENCE_FREEZE;
|
|
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),
|
|
mode);
|
|
} else {
|
|
MOZ_CRASH("Unsupported media type");
|
|
}
|
|
NotifyRealtimeTrackData(aGraph, aTrackOffset, *mMedia);
|
|
}
|
|
|
|
void
|
|
DirectMediaStreamTrackListener::IncreaseDisabled(DisabledTrackMode aMode)
|
|
{
|
|
if (aMode == DisabledTrackMode::SILENCE_FREEZE) {
|
|
++mDisabledFreezeCount;
|
|
} else if (aMode == DisabledTrackMode::SILENCE_BLACK) {
|
|
++mDisabledBlackCount;
|
|
} else {
|
|
MOZ_ASSERT(false, "Unknown disabled mode");
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("DirectMediaStreamTrackListener %p increased disabled "
|
|
"mode %s. Current counts are: freeze=%d, black=%d",
|
|
this,
|
|
aMode == DisabledTrackMode::SILENCE_FREEZE ? "freeze" : "black",
|
|
int32_t(mDisabledFreezeCount),
|
|
int32_t(mDisabledBlackCount)));
|
|
}
|
|
|
|
void
|
|
DirectMediaStreamTrackListener::DecreaseDisabled(DisabledTrackMode aMode)
|
|
{
|
|
if (aMode == DisabledTrackMode::SILENCE_FREEZE) {
|
|
--mDisabledFreezeCount;
|
|
MOZ_ASSERT(mDisabledFreezeCount >= 0, "Double decrease");
|
|
} else if (aMode == DisabledTrackMode::SILENCE_BLACK) {
|
|
--mDisabledBlackCount;
|
|
MOZ_ASSERT(mDisabledBlackCount >= 0, "Double decrease");
|
|
} else {
|
|
MOZ_ASSERT(false, "Unknown disabled mode");
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("DirectMediaStreamTrackListener %p decreased disabled "
|
|
"mode %s. Current counts are: freeze=%d, black=%d",
|
|
this,
|
|
aMode == DisabledTrackMode::SILENCE_FREEZE ? "freeze" : "black",
|
|
int32_t(mDisabledFreezeCount),
|
|
int32_t(mDisabledBlackCount)));
|
|
}
|
|
|
|
} // namespace mozilla
|