Ejemplo n.º 1
0
    public ProgramScheduleItem Peek(int offset)
    {
        if (offset == 0)
        {
            return(Current);
        }

        if ((State.Index + offset) % _scheduleItemsCount == 0)
        {
            IList <ProgramScheduleItem> shuffled;
            ProgramScheduleItem         tail = Current;

            // clone the random
            CloneableRandom randomCopy = _random.Clone();

            do
            {
                int newSeed = randomCopy.Next();
                randomCopy = new CloneableRandom(newSeed);
                shuffled   = Shuffle(_scheduleItems, randomCopy);
            } while (_scheduleItems.Count > 1 && shuffled[0] == tail);

            return(shuffled[0]);
        }

        return(_shuffled[(State.Index + offset) % _scheduleItemsCount]);
    }
        private async Task <ProgramScheduleItemViewModel> PersistItem(
            AddProgramScheduleItem request,
            ProgramSchedule programSchedule)
        {
            int nextIndex = programSchedule.Items.Select(i => i.Index).DefaultIfEmpty(0).Max() + 1;

            ProgramScheduleItem item = BuildItem(programSchedule, nextIndex, request);

            programSchedule.Items.Add(item);

            await _programScheduleRepository.Update(programSchedule);

            // rebuild any playouts that use this schedule
            foreach (Playout playout in programSchedule.Playouts)
            {
                await _channel.WriteAsync(new BuildPlayout(playout.Id, true));
            }

            return(ProjectToViewModel(item));
        }
    private async Task <ProgramScheduleItemViewModel> PersistItem(
        TvContext dbContext,
        AddProgramScheduleItem request,
        ProgramSchedule programSchedule)
    {
        int nextIndex = programSchedule.Items.Select(i => i.Index).DefaultIfEmpty(0).Max() + 1;

        ProgramScheduleItem item = BuildItem(programSchedule, nextIndex, request);

        programSchedule.Items.Add(item);

        await dbContext.SaveChangesAsync();

        // refresh any playouts that use this schedule
        foreach (Playout playout in programSchedule.Playouts)
        {
            await _channel.WriteAsync(new BuildPlayout(playout.Id, PlayoutBuildMode.Refresh));
        }

        return(ProjectToViewModel(item));
    }
Ejemplo n.º 4
0
    public void MoveNext()
    {
        if ((State.Index + 1) % _scheduleItemsCount == 0)
        {
            ProgramScheduleItem tail = Current;

            State.Index = 0;
            do
            {
                State.Seed = _random.Next();
                _random    = new CloneableRandom(State.Seed);
                _shuffled  = Shuffle(_scheduleItems, _random);
            } while (_scheduleItems.Count > 1 && Current == tail);
        }
        else
        {
            State.Index++;
        }

        State.Index %= _scheduleItemsCount;
    }
Ejemplo n.º 5
0
    public override Tuple <PlayoutBuilderState, List <PlayoutItem> > Schedule(
        PlayoutBuilderState playoutBuilderState,
        Dictionary <CollectionKey, IMediaCollectionEnumerator> collectionEnumerators,
        ProgramScheduleItemOne scheduleItem,
        ProgramScheduleItem nextScheduleItem,
        DateTimeOffset hardStop)
    {
        IMediaCollectionEnumerator contentEnumerator =
            collectionEnumerators[CollectionKey.ForScheduleItem(scheduleItem)];

        foreach (MediaItem mediaItem in contentEnumerator.Current)
        {
            // find when we should start this item, based on the current time
            DateTimeOffset itemStartTime = GetStartTimeAfter(
                playoutBuilderState,
                scheduleItem);

            TimeSpan            itemDuration = DurationForMediaItem(mediaItem);
            List <MediaChapter> itemChapters = ChaptersForMediaItem(mediaItem);

            var playoutItem = new PlayoutItem
            {
                MediaItemId = mediaItem.Id,
                Start       = itemStartTime.UtcDateTime,
                Finish      = itemStartTime.UtcDateTime + itemDuration,
                InPoint     = TimeSpan.Zero,
                OutPoint    = itemDuration,
                GuideGroup  = playoutBuilderState.NextGuideGroup,
                FillerKind  = scheduleItem.GuideMode == GuideMode.Filler
                    ? FillerKind.Tail
                    : FillerKind.None,
                WatermarkId = scheduleItem.WatermarkId,
                PreferredAudioLanguageCode    = scheduleItem.PreferredAudioLanguageCode,
                PreferredSubtitleLanguageCode = scheduleItem.PreferredSubtitleLanguageCode,
                SubtitleMode = scheduleItem.SubtitleMode
            };

            DateTimeOffset itemEndTimeWithFiller = CalculateEndTimeWithFiller(
                collectionEnumerators,
                scheduleItem,
                itemStartTime,
                itemDuration,
                itemChapters);

            List <PlayoutItem> playoutItems = AddFiller(
                playoutBuilderState,
                collectionEnumerators,
                scheduleItem,
                playoutItem,
                itemChapters);

            PlayoutBuilderState nextState = playoutBuilderState with
            {
                CurrentTime = itemEndTimeWithFiller
            };

            nextState.ScheduleItemsEnumerator.MoveNext();
            contentEnumerator.MoveNext();

            // LogScheduledItem(scheduleItem, mediaItem, itemStartTime);

            // only play one item from collection, so always advance to the next item
            // _logger.LogDebug(
            //     "Advancing to next schedule item after playout mode {PlayoutMode}",
            //     "One");

            DateTimeOffset nextItemStart = GetStartTimeAfter(nextState, nextScheduleItem);

            if (scheduleItem.TailFiller != null)
            {
                (nextState, playoutItems) = AddTailFiller(
                    nextState,
                    collectionEnumerators,
                    scheduleItem,
                    playoutItems,
                    nextItemStart);
            }

            if (scheduleItem.FallbackFiller != null)
            {
                (nextState, playoutItems) = AddFallbackFiller(
                    nextState,
                    collectionEnumerators,
                    scheduleItem,
                    playoutItems,
                    nextItemStart);
            }

            nextState = nextState with {
                NextGuideGroup = nextState.IncrementGuideGroup
            };

            return(Tuple(nextState, playoutItems));
        }

        return(Tuple(playoutBuilderState, new List <PlayoutItem>()));
    }
}
Ejemplo n.º 6
0
 public static CollectionKey ForScheduleItem(ProgramScheduleItem item) =>
 item.CollectionType switch
 {
    public override Tuple <PlayoutBuilderState, List <PlayoutItem> > Schedule(
        PlayoutBuilderState playoutBuilderState,
        Dictionary <CollectionKey, IMediaCollectionEnumerator> collectionEnumerators,
        ProgramScheduleItemFlood scheduleItem,
        ProgramScheduleItem nextScheduleItem,
        DateTimeOffset hardStop)
    {
        var playoutItems = new List <PlayoutItem>();

        PlayoutBuilderState nextState = playoutBuilderState;
        var willFinishInTime          = true;

        IMediaCollectionEnumerator contentEnumerator =
            collectionEnumerators[CollectionKey.ForScheduleItem(scheduleItem)];

        ProgramScheduleItem peekScheduleItem = nextScheduleItem;

        while (contentEnumerator.Current.IsSome && nextState.CurrentTime < hardStop && willFinishInTime)
        {
            MediaItem mediaItem = contentEnumerator.Current.ValueUnsafe();

            // find when we should start this item, based on the current time
            DateTimeOffset      itemStartTime = GetStartTimeAfter(nextState, scheduleItem);
            TimeSpan            itemDuration  = DurationForMediaItem(mediaItem);
            List <MediaChapter> itemChapters  = ChaptersForMediaItem(mediaItem);

            var playoutItem = new PlayoutItem
            {
                MediaItemId = mediaItem.Id,
                Start       = itemStartTime.UtcDateTime,
                Finish      = itemStartTime.UtcDateTime + itemDuration,
                InPoint     = TimeSpan.Zero,
                OutPoint    = itemDuration,
                GuideGroup  = nextState.NextGuideGroup,
                FillerKind  = scheduleItem.GuideMode == GuideMode.Filler
                    ? FillerKind.Tail
                    : FillerKind.None,
                WatermarkId = scheduleItem.WatermarkId,
                PreferredAudioLanguageCode    = scheduleItem.PreferredAudioLanguageCode,
                PreferredSubtitleLanguageCode = scheduleItem.PreferredSubtitleLanguageCode,
                SubtitleMode = scheduleItem.SubtitleMode
            };

            DateTimeOffset peekScheduleItemStart =
                peekScheduleItem.StartType == StartType.Fixed
                    ? GetStartTimeAfter(nextState with {
                InFlood = false
            }, peekScheduleItem)
                    : DateTimeOffset.MaxValue;

            DateTimeOffset itemEndTimeWithFiller = CalculateEndTimeWithFiller(
                collectionEnumerators,
                scheduleItem,
                itemStartTime,
                itemDuration,
                itemChapters);

            // if the next schedule item is supposed to start during this item,
            // don't schedule this item and just move on
            willFinishInTime = peekScheduleItemStart < itemStartTime ||
                               peekScheduleItemStart >= itemEndTimeWithFiller;

            if (willFinishInTime)
            {
                playoutItems.AddRange(
                    AddFiller(nextState, collectionEnumerators, scheduleItem, playoutItem, itemChapters));
                // LogScheduledItem(scheduleItem, mediaItem, itemStartTime);

                DateTimeOffset actualEndTime = playoutItems.Max(p => p.FinishOffset);
                if (Math.Abs((itemEndTimeWithFiller - actualEndTime).TotalSeconds) > 1)
                {
                    _logger.LogWarning(
                        "Filler prediction failure: predicted {PredictedDuration} doesn't match actual {ActualDuration}",
                        itemEndTimeWithFiller,
                        actualEndTime);

                    // _logger.LogWarning("Playout items: {@PlayoutItems}", playoutItems);
                }

                nextState = nextState with
                {
                    CurrentTime    = itemEndTimeWithFiller,
                    InFlood        = true,
                    NextGuideGroup = nextState.IncrementGuideGroup
                };

                contentEnumerator.MoveNext();
            }
        }

        // _logger.LogDebug(
        //     "Advancing to next schedule item after playout mode {PlayoutMode}",
        //     "Flood");

        nextState = nextState with
        {
            InFlood        = nextState.CurrentTime >= hardStop,
            NextGuideGroup = nextState.DecrementGuideGroup
        };

        nextState.ScheduleItemsEnumerator.MoveNext();

        ProgramScheduleItem peekItem      = nextScheduleItem;
        DateTimeOffset      peekItemStart = GetStartTimeAfter(nextState, peekItem);

        if (scheduleItem.TailFiller != null)
        {
            (nextState, playoutItems) = AddTailFiller(
                nextState,
                collectionEnumerators,
                scheduleItem,
                playoutItems,
                peekItemStart);
        }

        if (scheduleItem.FallbackFiller != null)
        {
            (nextState, playoutItems) = AddFallbackFiller(
                nextState,
                collectionEnumerators,
                scheduleItem,
                playoutItems,
                peekItemStart);
        }

        nextState = nextState with {
            NextGuideGroup = nextState.IncrementGuideGroup
        };

        return(Tuple(nextState, playoutItems));
    }
}
Ejemplo n.º 8
0
    public override Tuple <PlayoutBuilderState, List <PlayoutItem> > Schedule(
        PlayoutBuilderState playoutBuilderState,
        Dictionary <CollectionKey, IMediaCollectionEnumerator> collectionEnumerators,
        ProgramScheduleItemDuration scheduleItem,
        ProgramScheduleItem nextScheduleItem,
        DateTimeOffset hardStop)
    {
        var playoutItems = new List <PlayoutItem>();

        PlayoutBuilderState nextState = playoutBuilderState;

        var willFinishInTime = true;
        Option <DateTimeOffset> durationUntil = None;

        IMediaCollectionEnumerator contentEnumerator =
            collectionEnumerators[CollectionKey.ForScheduleItem(scheduleItem)];

        while (contentEnumerator.Current.IsSome && nextState.CurrentTime < hardStop && willFinishInTime)
        {
            MediaItem mediaItem = contentEnumerator.Current.ValueUnsafe();

            // find when we should start this item, based on the current time
            DateTimeOffset itemStartTime = GetStartTimeAfter(nextState, scheduleItem);

            // remember when we need to finish this duration item
            if (nextState.DurationFinish.IsNone)
            {
                nextState = nextState with
                {
                    DurationFinish = itemStartTime + scheduleItem.PlayoutDuration
                };

                durationUntil = nextState.DurationFinish;
            }

            TimeSpan            itemDuration = DurationForMediaItem(mediaItem);
            List <MediaChapter> itemChapters = ChaptersForMediaItem(mediaItem);

            if (itemDuration > scheduleItem.PlayoutDuration)
            {
                _logger.LogWarning(
                    "Skipping playout item {Title} with duration {Duration} that is longer than schedule item duration {PlayoutDuration}",
                    PlayoutBuilder.DisplayTitle(mediaItem),
                    itemDuration,
                    scheduleItem.PlayoutDuration);

                contentEnumerator.MoveNext();
                continue;
            }

            var playoutItem = new PlayoutItem
            {
                MediaItemId = mediaItem.Id,
                Start       = itemStartTime.UtcDateTime,
                Finish      = itemStartTime.UtcDateTime + itemDuration,
                InPoint     = TimeSpan.Zero,
                OutPoint    = itemDuration,
                GuideGroup  = nextState.NextGuideGroup,
                FillerKind  = scheduleItem.GuideMode == GuideMode.Filler
                    ? FillerKind.Tail
                    : FillerKind.None,
                CustomTitle = scheduleItem.CustomTitle,
                WatermarkId = scheduleItem.WatermarkId,
                PreferredAudioLanguageCode    = scheduleItem.PreferredAudioLanguageCode,
                PreferredSubtitleLanguageCode = scheduleItem.PreferredSubtitleLanguageCode,
                SubtitleMode = scheduleItem.SubtitleMode
            };

            durationUntil.Do(du => playoutItem.GuideFinish = du.UtcDateTime);

            DateTimeOffset durationFinish        = nextState.DurationFinish.IfNone(SystemTime.MaxValueUtc);
            DateTimeOffset itemEndTimeWithFiller = CalculateEndTimeWithFiller(
                collectionEnumerators,
                scheduleItem,
                itemStartTime,
                itemDuration,
                itemChapters);
            willFinishInTime = itemStartTime > durationFinish ||
                               itemEndTimeWithFiller <= durationFinish;
            if (willFinishInTime)
            {
                // LogScheduledItem(scheduleItem, mediaItem, itemStartTime);
                playoutItems.AddRange(
                    AddFiller(nextState, collectionEnumerators, scheduleItem, playoutItem, itemChapters));

                nextState = nextState with
                {
                    CurrentTime = itemEndTimeWithFiller,

                    // only bump guide group if we don't have a custom title
                    NextGuideGroup = string.IsNullOrWhiteSpace(scheduleItem.CustomTitle)
                        ? nextState.IncrementGuideGroup
                        : nextState.NextGuideGroup
                };

                contentEnumerator.MoveNext();
            }
            else
            {
                TimeSpan durationBlock = itemEndTimeWithFiller - itemStartTime;
                if (itemEndTimeWithFiller - itemStartTime > scheduleItem.PlayoutDuration)
                {
                    _logger.LogWarning(
                        "Unable to schedule duration block of {DurationBlock} which is longer than the configured playout duration {PlayoutDuration}",
                        durationBlock,
                        scheduleItem.PlayoutDuration);
                }

                nextState = nextState with
                {
                    DurationFinish = None
                };

                nextState.ScheduleItemsEnumerator.MoveNext();
            }
        }

        // this is needed when the duration finish exactly matches the hard stop
        if (nextState.DurationFinish.IsSome && nextState.CurrentTime == nextState.DurationFinish)
        {
            nextState = nextState with
            {
                DurationFinish = None
            };

            nextState.ScheduleItemsEnumerator.MoveNext();
        }

        if (playoutItems.Select(pi => pi.GuideGroup).Distinct().Count() != 1)
        {
            nextState = nextState with {
                NextGuideGroup = nextState.DecrementGuideGroup
            };
        }

        foreach (DateTimeOffset nextItemStart in durationUntil)
        {
            switch (scheduleItem.TailMode)
            {
            case TailMode.Filler:
                if (scheduleItem.TailFiller != null)
                {
                    (nextState, playoutItems) = AddTailFiller(
                        nextState,
                        collectionEnumerators,
                        scheduleItem,
                        playoutItems,
                        nextItemStart);
                }

                if (scheduleItem.FallbackFiller != null)
                {
                    (nextState, playoutItems) = AddFallbackFiller(
                        nextState,
                        collectionEnumerators,
                        scheduleItem,
                        playoutItems,
                        nextItemStart);
                }

                nextState = nextState with {
                    CurrentTime = nextItemStart
                };
                break;

            case TailMode.Offline:
                if (scheduleItem.FallbackFiller != null)
                {
                    (nextState, playoutItems) = AddFallbackFiller(
                        nextState,
                        collectionEnumerators,
                        scheduleItem,
                        playoutItems,
                        nextItemStart);
                }

                nextState = nextState with {
                    CurrentTime = nextItemStart
                };
                break;
            }
        }

        // clear guide finish on all but the last item
        var         all  = playoutItems.Filter(pi => pi.FillerKind == FillerKind.None).ToList();
        PlayoutItem last = all.OrderBy(pi => pi.FinishOffset).LastOrDefault();

        foreach (PlayoutItem item in all.Filter(pi => pi != last))
        {
            item.GuideFinish = null;
        }

        nextState = nextState with {
            NextGuideGroup = nextState.IncrementGuideGroup
        };

        return(Tuple(nextState, playoutItems));
    }
}