private ulong TotalTicks; // For ETA calculation.
// The object created may modify trackSamples in a destructive way, to save memory.
// Expects tracks[...].NextStartTime and tracks[...].DownloadedChunkCount to be initialized.
public DownloadingMediaDataSource(IList <Track> tracks, string manifestParentPath,
ulong timeScale, bool isLive, ulong stopAfter, ulong totalTicks,
DisplayDuration displayDuration)
{
int trackCount = tracks.Count;
this.Tracks = tracks;
this.ManifestParentPath = manifestParentPath;
this.TimeScale = timeScale;
this.DisplayDuration = displayDuration;
this.IsLive = isLive;
this.StopAfter = stopAfter;
this.TotalDuration = 0;
this.MinStartTime = ulong.MaxValue;
this.IsStopped = false;
for (int i = 0; i < trackCount; ++i)
{
ulong chunkStartTime = tracks[i].NextStartTime;
if (this.MinStartTime > chunkStartTime)
{
this.MinStartTime = chunkStartTime;
}
}
this.TotalTicks = totalTicks;
this.TrackSamples = new IList <MediaSample> [trackCount]; // Items initialized to null.
for (int i = 0; i < trackCount; ++i)
{
this.TrackSamples[i] = new List <MediaSample>();
}
this.TrackSampleStartIndexes = new int[trackCount]; // Items initialized to 0.
this.TrackFirstBlocks = new MediaDataBlock[trackCount]; // Items initialized to null.
this.TrackFirstFileDatas = new byte[trackCount][]; // Items initialized to null.
this.ChunkStartTimeReceiver = null;
}
/// <summary>
/// </summary>
/// <param name="tracks"></param>
/// <param name="manifestParentPath"></param>
/// <param name="timeScale"></param>
/// <param name="isLive"></param>
/// <param name="stopAfter"></param>
/// <param name="totalTicks"></param>
/// <param name="displayDuration"></param>
public DownloadingMediaDataSource(IList <Track> tracks, string manifestParentPath,
ulong timeScale, bool isLive, ulong stopAfter, ulong totalTicks,
DisplayDuration displayDuration)
{
_tracks = tracks;
_manifestParentPath = manifestParentPath;
_timeScale = timeScale;
_displayDuration = displayDuration;
_isLive = isLive;
_stopAfter = stopAfter;
for (var i = 0; i < tracks.Count; ++i)
{
var chunkStartTime = tracks[i].NextStartTime;
if (_minStartTime > chunkStartTime)
{
_minStartTime = chunkStartTime;
}
}
_totalTicks = totalTicks;
_trackSamples = new IList <MediaSample> [tracks.Count];
for (var i = 0; i < tracks.Count; ++i)
{
_trackSamples[i] = new List <MediaSample>();
}
_trackSampleStartIndexes = new int[tracks.Count]; // Items initialized to 0.
_trackFirstBlocks = new MediaDataBlock[tracks.Count]; // Items initialized to null.
_trackFirstFileDatas = new byte[tracks.Count][];
_chunkStartTimeReceiver = null;
}
/// <inheritdoc />
/// <summary>
/// </summary>
/// <param name="startTimeReceiver"></param>
public void StartChunks(IChunkStartTimeReceiver startTimeReceiver)
{
_chunkStartTimeReceiver = startTimeReceiver;
for (var trackIndex = 0; trackIndex < _tracks.Count; ++trackIndex)
{
_chunkStartTimeReceiver.SetChunkStartTime(trackIndex, _tracks[trackIndex].DownloadedChunkCount, _tracks[trackIndex].NextStartTime);
}
}
/*implements*/ public void StartChunks(IChunkStartTimeReceiver chunkStartTimeReceiver)
{
this.ChunkStartTimeReceiver = chunkStartTimeReceiver;
for (int trackIndex = 0; trackIndex < this.Tracks.Count; ++trackIndex)
{
// Propagate the start time of the verify first chunk of the track. If resuming from a .muxstate,
// this also checks that the .muxstate is consistent with what we want to do.
// TODO: If not consistent, don't use the .muxstate instead of making the process abort.
this.ChunkStartTimeReceiver.SetChunkStartTime(
trackIndex, this.Tracks[trackIndex].DownloadedChunkCount, this.Tracks[trackIndex].NextStartTime);
}
}
/*implements*/
public void StartChunks(IChunkStartTimeReceiver chunkStartTimeReceiver)
{
this.ChunkStartTimeReceiver = chunkStartTimeReceiver;
for (int trackIndex = 0; trackIndex < this.Tracks.Count; ++trackIndex) {
// Propagate the start time of the verify first chunk of the track. If resuming from a .muxstate,
// this also checks that the .muxstate is consistent with what we want to do.
// TODO: If not consistent, don't use the .muxstate instead of making the process abort.
this.ChunkStartTimeReceiver.SetChunkStartTime(
trackIndex, this.Tracks[trackIndex].DownloadedChunkCount, this.Tracks[trackIndex].NextStartTime);
}
}
// The object created may modify trackSamples in a destructive way, to save memory.
// Expects tracks[...].NextStartTime and tracks[...].DownloadedChunkCount to be initialized.
public DownloadingMediaDataSource(IList<Track> tracks, string manifestParentPath,
ulong timeScale, bool isLive, ulong stopAfter, ulong totalTicks,
DisplayDuration displayDuration)
{
int trackCount = tracks.Count;
this.Tracks = tracks;
this.ManifestParentPath = manifestParentPath;
this.TimeScale = timeScale;
this.DisplayDuration = displayDuration;
this.IsLive = isLive;
this.StopAfter = stopAfter;
this.TotalDuration = 0;
this.MinStartTime = ulong.MaxValue;
this.IsStopped = false;
for (int i = 0; i < trackCount; ++i) {
ulong chunkStartTime = tracks[i].NextStartTime;
if (this.MinStartTime > chunkStartTime) {
this.MinStartTime = chunkStartTime;
}
}
this.TotalTicks = totalTicks;
this.TrackSamples = new IList<MediaSample>[trackCount]; // Items initialized to null.
for (int i = 0; i < trackCount; ++i) {
this.TrackSamples[i] = new List<MediaSample>();
}
this.TrackSampleStartIndexes = new int[trackCount]; // Items initialized to 0.
this.TrackFirstBlocks = new MediaDataBlock[trackCount]; // Items initialized to null.
this.TrackFirstFileDatas = new byte[trackCount][]; // Items initialized to null.
this.ChunkStartTimeReceiver = null;
}
