/// <summary>
/// Reads all the blocks of the specified media type from the source url.
/// </summary>
/// <param name="mediaSource">The subtitles URL.</param>
/// <param name="sourceType">Type of the source.</param>
/// <param name="parent">The parent.</param>
/// <returns>A buffer containing all the blocks.</returns>
internal static MediaBlockBuffer LoadBlocks(string mediaSource, MediaType sourceType, ILoggingHandler parent)
{
if (string.IsNullOrWhiteSpace(mediaSource))
{
throw new ArgumentNullException(nameof(mediaSource));
}
using (var tempContainer = new MediaContainer(mediaSource, null, parent))
{
tempContainer.Initialize();
// Skip reading and decoding unused blocks
tempContainer.MediaOptions.IsAudioDisabled = sourceType != MediaType.Audio;
tempContainer.MediaOptions.IsVideoDisabled = sourceType != MediaType.Video;
tempContainer.MediaOptions.IsSubtitleDisabled = sourceType != MediaType.Subtitle;
// Open the container
tempContainer.Open();
if (tempContainer.Components.Main == null || tempContainer.Components.MainMediaType != sourceType)
{
throw new MediaContainerException($"Could not find a stream of type '{sourceType}' to load blocks from");
}
// read all the packets and decode them
var outputFrames = new List <MediaFrame>(1024 * 8);
while (true)
{
tempContainer.Read();
var frames = tempContainer.Decode();
foreach (var frame in frames)
{
if (frame.MediaType != sourceType)
{
continue;
}
outputFrames.Add(frame);
}
if (frames.Count <= 0 && tempContainer.IsAtEndOfStream)
{
break;
}
}
// Build the result
var result = new MediaBlockBuffer(outputFrames.Count, sourceType);
foreach (var frame in outputFrames)
{
result.Add(frame, tempContainer);
}
tempContainer.Close();
return(result);
}
}
static void Start(string[] args)
{
InputFile = TestInputs.HlsStream;
StartTime = 0;
DecodeDurationLimit = 20;
IsBenchmarking = false;
SaveWaveFile = true;
SaveSnapshots = true;
Container = new MediaContainer(InputFile);
Container.Initialize();
TestNormalDecoding();
//TestMultipleSeeks();
Container.Dispose();
Terminal.WriteLine("All Tests Done!");
Terminal.ReadKey(true, true);
}
public void Open(IMediaInputStream stream, Uri streamUri, HardwareDeviceInfo ha)
{
if (stream != null || streamUri != null)
{
Close();
try
{
// TODO: Sometimes when the stream can't be read, the sample player stays as if it were trying to open
// until the interrupt timeout occurs but and the Real-Time Clock continues. Strange behavior. Investigate more.
// Signal the initial state
var source = stream != null ? stream.StreamUri : streamUri;
State.ResetAll();
State.UpdateSource(source);
// Create a default stream container configuration object
var containerConfig = new ContainerConfiguration();
// Convert the URI object to something the Media Container understands (Uri to String)
var mediaSource = source.IsWellFormedOriginalString()
? source.OriginalString
: Uri.EscapeUriString(source.OriginalString);
// When opening via URL (and not via custom input stream), fix up the protocols and stuff
if (stream == null)
{
try
{
// the async protocol prefix allows for increased performance for local files.
// or anything that is file-system related
if (source.IsFile || source.IsUnc)
{
// Set the default protocol Prefix
// The async protocol prefix by default does not ssem to provide
// any performance improvements. Just leaving it for future reference below.
// containerConfig.ProtocolPrefix = "async"
mediaSource = source.LocalPath;
}
}
catch { /* Ignore exception and continue */ }
// Support device URLs
// GDI GRAB: Example URI: device://gdigrab?desktop
if (string.IsNullOrWhiteSpace(source.Scheme) == false &&
(source.Scheme == "format" || source.Scheme == "device") &&
string.IsNullOrWhiteSpace(source.Host) == false &&
string.IsNullOrWhiteSpace(containerConfig.ForcedInputFormat) &&
string.IsNullOrWhiteSpace(source.Query) == false)
{
// Update the Input format and container input URL
// It is also possible to set some input options as follows:
// Example: streamOptions.PrivateOptions["framerate"] = "20"
containerConfig.ForcedInputFormat = source.Host;
mediaSource = Uri.UnescapeDataString(source.Query).TrimStart('?');
//this.LogInfo(Aspects.EngineCommand,
// $"Media URI will be updated. Input Format: {source.Host}, Input Argument: {mediaSource}");
}
}
// Instantiate the public container using either a URL (default) or a custom input stream.
Container = stream == null ?
new MediaContainer(mediaSource, containerConfig, this) :
new MediaContainer(stream, containerConfig, this);
// Initialize the container
Container.Initialize();
Container.MediaOptions.VideoHardwareDevice = ha;
// Side-load subtitles if requested
// Get the main container open
Container.Open();
State.InitializeBufferingStatistics();
Workers = new MediaWorkerSet(this);
Workers.Start();
}
catch
{
try { Workers?.Dispose(); } catch { /* Ignore any exceptions and continue */ }
try { Container?.Dispose(); } catch { /* Ignore any exceptions and continue */ }
Container = null;
throw;
}
}
else
{
Close();
}
}
/// <summary>
/// Opens the specified media Asynchronously
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns></returns>
private async Task OpenAsync(Uri uri)
{
try
{
await Task.Run(() =>
{
var mediaUrl = uri.IsFile ? uri.LocalPath : uri.ToString();
Container = new MediaContainer(mediaUrl);
RaiseMediaOpeningEvent();
Container.Log(MediaLogMessageType.Debug, $"{nameof(OpenAsync)}: Entered");
Container.Initialize();
});
foreach (var t in Container.Components.MediaTypes)
{
Blocks[t] = new MediaBlockBuffer(MaxBlocks[t], t);
Frames[t] = new MediaFrameQueue();
LastRenderTime[t] = TimeSpan.MinValue;
Renderers[t] = CreateRenderer(t);
}
IsTaskCancellationPending = false;
BlockRenderingCycle.Set();
FrameDecodingCycle.Set();
PacketReadingCycle.Set();
PacketReadingTask = new Thread(RunPacketReadingWorker)
{
IsBackground = true
};
FrameDecodingTask = new Thread(RunFrameDecodingWorker)
{
IsBackground = true
};
BlockRenderingTask = new Thread(RunBlockRenderingWorker)
{
IsBackground = true
};
PacketReadingTask.Start();
FrameDecodingTask.Start();
BlockRenderingTask.Start();
RaiseMediaOpenedEvent();
if (LoadedBehavior == MediaState.Play)
{
Play();
}
}
catch (Exception ex)
{
RaiseMediaFailedEvent(ex);
}
finally
{
UpdateMediaProperties();
Container.Log(MediaLogMessageType.Debug, $"{nameof(OpenAsync)}: Completed");
}
}
