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Add Configure on FFMpegArgumentProcessor to fuently configure ffoptions per run.

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This commit is contained in:
BobSilent 2021-11-02 10:40:05 +01:00
parent e052688209
commit 965e756dc4
2 changed files with 42 additions and 12 deletions
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37
FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs
View file

@ -14,6 +14,7 @@ namespace FFMpegCore
public class FFMpegArgumentProcessor
{
private static readonly Regex ProgressRegex = new Regex(@"time=(\d\d:\d\d:\d\d.\d\d?)", RegexOptions.Compiled);
private readonly List<Action<FFOptions>> _configurations;
private readonly FFMpegArguments _ffMpegArguments;
private Action<double>? _onPercentageProgress;
private Action<TimeSpan>? _onTimeProgress;
@ -22,12 +23,13 @@ public class FFMpegArgumentProcessor
internal FFMpegArgumentProcessor(FFMpegArguments ffMpegArguments)
{
_configurations = new List<Action<FFOptions>>();
_ffMpegArguments = ffMpegArguments;
}
public string Arguments => _ffMpegArguments.Text;
private event EventHandler<int> CancelEvent = null!;
private event EventHandler<int> CancelEvent = null!;
/// <summary>
/// Register action that will be invoked during the ffmpeg processing, when a progress time is output and parsed and progress percentage is calculated.
@ -70,10 +72,15 @@ public FFMpegArgumentProcessor CancellableThrough(CancellationToken token, int t
token.Register(() => CancelEvent?.Invoke(this, timeout));
return this;
}
public FFMpegArgumentProcessor Configure(Action<FFOptions> configureOptions)
{
_configurations.Add(configureOptions);
return this;
}
public bool ProcessSynchronously(bool throwOnError = true, FFOptions? ffMpegOptions = null)
{
using var instance = PrepareInstance(ffMpegOptions ?? GlobalFFOptions.Current, out var cancellationTokenSource);
var errorCode = -1;
var options = GetConfiguredOptions(ffMpegOptions);
using var instance = PrepareInstance(options, out var cancellationTokenSource);
void OnCancelEvent(object sender, int timeout)
{
@ -87,7 +94,8 @@ void OnCancelEvent(object sender, int timeout)
}
CancelEvent += OnCancelEvent;
instance.Exited += delegate { cancellationTokenSource.Cancel(); };
var errorCode = -1;
try
{
errorCode = Process(instance, cancellationTokenSource).ConfigureAwait(false).GetAwaiter().GetResult();
@ -100,14 +108,14 @@ void OnCancelEvent(object sender, int timeout)
{
CancelEvent -= OnCancelEvent;
}
return HandleCompletion(throwOnError, errorCode, instance.ErrorData);
}
public async Task<bool> ProcessAsynchronously(bool throwOnError = true, FFOptions? ffMpegOptions = null)
{
using var instance = PrepareInstance(ffMpegOptions ?? GlobalFFOptions.Current, out var cancellationTokenSource);
var errorCode = -1;
var options = GetConfiguredOptions(ffMpegOptions);
using var instance = PrepareInstance(options, out var cancellationTokenSource);
void OnCancelEvent(object sender, int timeout)
{
@ -120,7 +128,8 @@ void OnCancelEvent(object sender, int timeout)
}
}
CancelEvent += OnCancelEvent;
var errorCode = -1;
try
{
errorCode = await Process(instance, cancellationTokenSource).ConfigureAwait(false);
@ -163,6 +172,18 @@ private bool HandleCompletion(bool throwOnError, int exitCode, IReadOnlyList<str
return exitCode == 0;
}
private FFOptions GetConfiguredOptions(FFOptions? ffOptions)
{
var options = ffOptions ?? GlobalFFOptions.Current.Clone();
foreach (var configureOptions in _configurations)
{
configureOptions(options);
}
return options;
}
private Instance PrepareInstance(FFOptions ffOptions,
out CancellationTokenSource cancellationTokenSource)
{

17
FFMpegCore/FFOptions.cs
View file

@ -1,10 +1,11 @@
using System.Collections.Generic;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace FFMpegCore
{
public class FFOptions
public class FFOptions : ICloneable
{
/// <summary>
/// Working directory for the ffmpeg/ffprobe instance
@ -27,16 +28,24 @@ public class FFOptions
public Encoding Encoding { get; set; } = Encoding.Default;
/// <summary>
///
///
/// </summary>
public Dictionary<string, string> ExtensionOverrides { get; set; } = new Dictionary<string, string>
{
{ "mpegts", ".ts" },
};
/// <summary>
/// Whether to cache calls to get ffmpeg codec, pixel- and container-formats
/// </summary>
public bool UseCache { get; set; } = true;
/// <inheritdoc/>
object ICloneable.Clone() => Clone();
/// <summary>
/// Creates a new object that is a copy of the current instance.
/// </summary>
public FFOptions Clone() => (FFOptions)MemberwiseClone();
}
}