mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 13:45:27 +00:00
87 lines
2.2 KiB
C++
87 lines
2.2 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 "StreamBuffer.h"
|
|
#include "prlog.h"
|
|
#include <algorithm>
|
|
|
|
namespace mozilla {
|
|
|
|
#ifdef PR_LOGGING
|
|
extern PRLogModuleInfo* gMediaStreamGraphLog;
|
|
#define LOG(type, msg) PR_LOG(gMediaStreamGraphLog, type, msg)
|
|
#else
|
|
#define LOG(type, msg)
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
StreamBuffer::DumpTrackInfo() const
|
|
{
|
|
LOG(PR_LOG_ALWAYS, ("DumpTracks: mTracksKnownTime %lld", mTracksKnownTime));
|
|
for (uint32_t i = 0; i < mTracks.Length(); ++i) {
|
|
Track* track = mTracks[i];
|
|
if (track->IsEnded()) {
|
|
LOG(PR_LOG_ALWAYS, ("Track[%d] %d: ended", i, track->GetID()));
|
|
} else {
|
|
LOG(PR_LOG_ALWAYS, ("Track[%d] %d: %lld", i, track->GetID(),
|
|
track->GetEndTimeRoundDown()));
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
StreamTime
|
|
StreamBuffer::GetEnd() const
|
|
{
|
|
StreamTime t = mTracksKnownTime;
|
|
for (uint32_t i = 0; i < mTracks.Length(); ++i) {
|
|
Track* track = mTracks[i];
|
|
if (!track->IsEnded()) {
|
|
t = std::min(t, track->GetEndTimeRoundDown());
|
|
}
|
|
}
|
|
return t;
|
|
}
|
|
|
|
StreamBuffer::Track*
|
|
StreamBuffer::FindTrack(TrackID aID)
|
|
{
|
|
if (aID == TRACK_NONE)
|
|
return nullptr;
|
|
for (uint32_t i = 0; i < mTracks.Length(); ++i) {
|
|
Track* track = mTracks[i];
|
|
if (track->GetID() == aID) {
|
|
return track;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void
|
|
StreamBuffer::ForgetUpTo(StreamTime aTime)
|
|
{
|
|
// Round to nearest 50ms so we don't spend too much time pruning segments.
|
|
const MediaTime roundTo = MillisecondsToMediaTime(50);
|
|
StreamTime forget = (aTime/roundTo)*roundTo;
|
|
if (forget <= mForgottenTime) {
|
|
return;
|
|
}
|
|
mForgottenTime = forget;
|
|
|
|
for (uint32_t i = 0; i < mTracks.Length(); ++i) {
|
|
Track* track = mTracks[i];
|
|
if (track->IsEnded() && track->GetEndTimeRoundDown() <= forget) {
|
|
mTracks.RemoveElementAt(i);
|
|
--i;
|
|
continue;
|
|
}
|
|
TrackTicks forgetTo = std::min(track->GetEnd() - 1, track->TimeToTicksRoundDown(forget));
|
|
track->ForgetUpTo(forgetTo);
|
|
}
|
|
}
|
|
|
|
}
|