mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
69 lines
2.5 KiB
C++
69 lines
2.5 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/. */
|
|
|
|
#if !defined(MediaMetadataManager_h__)
|
|
#define MediaMetadataManager_h__
|
|
#include "VideoUtils.h"
|
|
#include "mozilla/LinkedList.h"
|
|
#include "AbstractMediaDecoder.h"
|
|
#include "nsAutoPtr.h"
|
|
|
|
namespace mozilla {
|
|
|
|
// A struct that contains the metadata of a media, and the time at which those
|
|
// metadata should start to be reported.
|
|
class TimedMetadata : public LinkedListElement<TimedMetadata> {
|
|
public:
|
|
// The time, in microseconds, at which those metadata should be available.
|
|
int64_t mPublishTime;
|
|
// The metadata. The ownership is transfered to the element when dispatching to
|
|
// the main threads.
|
|
nsAutoPtr<MetadataTags> mTags;
|
|
// The media info, including the info of audio tracks and video tracks.
|
|
// The ownership is transfered to MediaDecoder when dispatching to the
|
|
// main thread.
|
|
nsAutoPtr<MediaInfo> mInfo;
|
|
};
|
|
|
|
// This class encapsulate the logic to give the metadata from the reader to
|
|
// the content, at the right time.
|
|
class MediaMetadataManager
|
|
{
|
|
public:
|
|
~MediaMetadataManager() {
|
|
TimedMetadata* element;
|
|
while((element = mMetadataQueue.popFirst()) != nullptr) {
|
|
delete element;
|
|
}
|
|
}
|
|
void QueueMetadata(TimedMetadata* aMetadata) {
|
|
mMetadataQueue.insertBack(aMetadata);
|
|
}
|
|
|
|
void DispatchMetadataIfNeeded(AbstractMediaDecoder* aDecoder, double aCurrentTime) {
|
|
TimedMetadata* metadata = mMetadataQueue.getFirst();
|
|
while (metadata && aCurrentTime >= static_cast<double>(metadata->mPublishTime) / USECS_PER_S) {
|
|
// Remove all media tracks from the list first.
|
|
nsCOMPtr<nsIRunnable> removeTracksEvent =
|
|
new RemoveMediaTracksEventRunner(aDecoder);
|
|
NS_DispatchToMainThread(removeTracksEvent);
|
|
|
|
nsCOMPtr<nsIRunnable> metadataUpdatedEvent =
|
|
new MetadataUpdatedEventRunner(aDecoder,
|
|
metadata->mInfo,
|
|
metadata->mTags);
|
|
NS_DispatchToMainThread(metadataUpdatedEvent);
|
|
delete mMetadataQueue.popFirst();
|
|
metadata = mMetadataQueue.getFirst();
|
|
}
|
|
}
|
|
protected:
|
|
LinkedList<TimedMetadata> mMetadataQueue;
|
|
};
|
|
}
|
|
|
|
#endif
|