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Former-commit-id: 7f8bd24058
This commit is contained in:
Malte Rosenbjerg 2022-03-12 19:06:46 +01:00
parent 40a28f92e7
commit 52bf2ec4d0
9 changed files with 174 additions and 157 deletions
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7
FFMpegCore.Test/FFProbeTests.cs
View file

@ -11,13 +11,6 @@ namespace FFMpegCore.Test
[TestClass] [TestClass]
public class FFProbeTests public class FFProbeTests
{ {
[TestMethod]
public void Probe_TooLongOutput()
{
Assert.ThrowsException<System.Text.Json.JsonException>(() => FFProbe.Analyse(TestResources.Mp4Video, 5));
}
[TestMethod] [TestMethod]
public async Task Audio_FromStream_Duration() public async Task Audio_FromStream_Duration()
{ {

2
FFMpegCore.Test/VideoTest.cs
View file

@ -544,7 +544,7 @@ public void Video_OutputsData()
.WithVerbosityLevel(VerbosityLevel.Info)) .WithVerbosityLevel(VerbosityLevel.Info))
.OutputToFile(outputFile, false, opt => opt .OutputToFile(outputFile, false, opt => opt
.WithDuration(TimeSpan.FromSeconds(2))) .WithDuration(TimeSpan.FromSeconds(2)))
.NotifyOnOutput((_, _) => dataReceived = true) .NotifyOnError(_ => dataReceived = true)
.ProcessSynchronously(); .ProcessSynchronously();
Assert.IsTrue(dataReceived); Assert.IsTrue(dataReceived);

32
FFMpegCore/FFMpeg/FFMpeg.cs
View file

@ -8,6 +8,7 @@
using System.IO; using System.IO;
using System.Linq; using System.Linq;
using System.Threading.Tasks; using System.Threading.Tasks;
using Instances;
namespace FFMpegCore namespace FFMpegCore
{ {
@ -417,15 +418,16 @@ internal static IReadOnlyList<PixelFormat> GetPixelFormatsInternal()
FFMpegHelper.RootExceptionCheck(); FFMpegHelper.RootExceptionCheck();
var list = new List<PixelFormat>(); var list = new List<PixelFormat>();
using var instance = new Instances.Instance(GlobalFFOptions.GetFFMpegBinaryPath(), "-pix_fmts"); var processArguments = new ProcessArguments(GlobalFFOptions.GetFFMpegBinaryPath(), "-pix_fmts");
instance.DataReceived += (e, args) => processArguments.OutputDataReceived += (e, data) =>
{ {
if (PixelFormat.TryParse(args.Data, out var format)) if (PixelFormat.TryParse(data, out var format))
list.Add(format); list.Add(format);
}; };
var exitCode = instance.BlockUntilFinished(); var result = processArguments.StartAndWaitForExit();
if (exitCode != 0) throw new FFMpegException(FFMpegExceptionType.Process, string.Join("\r\n", instance.OutputData)); if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, string.Join("\r\n", result.OutputData));
return list.AsReadOnly(); return list.AsReadOnly();
} }
@ -462,10 +464,10 @@ private static void ParsePartOfCodecs(Dictionary<string, Codec> codecs, string a
{ {
FFMpegHelper.RootExceptionCheck(); FFMpegHelper.RootExceptionCheck();
using var instance = new Instances.Instance(GlobalFFOptions.GetFFMpegBinaryPath(), arguments); var processArguments = new ProcessArguments(GlobalFFOptions.GetFFMpegBinaryPath(), arguments);
instance.DataReceived += (e, args) => processArguments.OutputDataReceived += (e, data) =>
{ {
var codec = parser(args.Data); var codec = parser(data);
if(codec != null) if(codec != null)
if (codecs.TryGetValue(codec.Name, out var parentCodec)) if (codecs.TryGetValue(codec.Name, out var parentCodec))
parentCodec.Merge(codec); parentCodec.Merge(codec);
@ -473,8 +475,8 @@ private static void ParsePartOfCodecs(Dictionary<string, Codec> codecs, string a
codecs.Add(codec.Name, codec); codecs.Add(codec.Name, codec);
}; };
var exitCode = instance.BlockUntilFinished(); var result = processArguments.StartAndWaitForExit();
if (exitCode != 0) throw new FFMpegException(FFMpegExceptionType.Process, string.Join("\r\n", instance.OutputData)); if (result.ExitCode != 0) throw new FFMpegException(FFMpegExceptionType.Process, string.Join("\r\n", result.OutputData));
} }
internal static Dictionary<string, Codec> GetCodecsInternal() internal static Dictionary<string, Codec> GetCodecsInternal()
@ -546,15 +548,15 @@ internal static IReadOnlyList<ContainerFormat> GetContainersFormatsInternal()
FFMpegHelper.RootExceptionCheck(); FFMpegHelper.RootExceptionCheck();
var list = new List<ContainerFormat>(); var list = new List<ContainerFormat>();
using var instance = new Instances.Instance(GlobalFFOptions.GetFFMpegBinaryPath(), "-formats"); var instance = new ProcessArguments(GlobalFFOptions.GetFFMpegBinaryPath(), "-formats");
instance.DataReceived += (e, args) => instance.OutputDataReceived += (e, data) =>
{ {
if (ContainerFormat.TryParse(args.Data, out var fmt)) if (ContainerFormat.TryParse(data, out var fmt))
list.Add(fmt); list.Add(fmt);
}; };
var exitCode = instance.BlockUntilFinished(); var result = instance.StartAndWaitForExit();
if (exitCode != 0) throw new FFMpegException(FFMpegExceptionType.Process, string.Join("\r\n", instance.OutputData)); if (result.ExitCode != 0) throw new FFMpegException(FFMpegExceptionType.Process, string.Join("\r\n", result.OutputData));
return list.AsReadOnly(); return list.AsReadOnly();
} }

119
FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs
View file

@ -18,7 +18,8 @@ public class FFMpegArgumentProcessor
private readonly FFMpegArguments _ffMpegArguments; private readonly FFMpegArguments _ffMpegArguments;
private Action<double>? _onPercentageProgress; private Action<double>? _onPercentageProgress;
private Action<TimeSpan>? _onTimeProgress; private Action<TimeSpan>? _onTimeProgress;
private Action<string, DataType>? _onOutput; private Action<string>? _onOutput;
private Action<string>? _onError;
private TimeSpan? _totalTimespan; private TimeSpan? _totalTimespan;
internal FFMpegArgumentProcessor(FFMpegArguments ffMpegArguments) internal FFMpegArgumentProcessor(FFMpegArguments ffMpegArguments)
@ -57,11 +58,16 @@ public FFMpegArgumentProcessor NotifyOnProgress(Action<TimeSpan> onTimeProgress)
/// Register action that will be invoked during the ffmpeg processing, when a line is output /// Register action that will be invoked during the ffmpeg processing, when a line is output
/// </summary> /// </summary>
/// <param name="onOutput"></param> /// <param name="onOutput"></param>
public FFMpegArgumentProcessor NotifyOnOutput(Action<string, DataType> onOutput) public FFMpegArgumentProcessor NotifyOnOutput(Action<string> onOutput)
{ {
_onOutput = onOutput; _onOutput = onOutput;
return this; return this;
} }
public FFMpegArgumentProcessor NotifyOnError(Action<string> onError)
{
_onError = onError;
return this;
}
public FFMpegArgumentProcessor CancellableThrough(out Action cancel, int timeout = 0) public FFMpegArgumentProcessor CancellableThrough(out Action cancel, int timeout = 0)
{ {
cancel = () => CancelEvent?.Invoke(this, timeout); cancel = () => CancelEvent?.Invoke(this, timeout);
@ -80,43 +86,47 @@ public FFMpegArgumentProcessor Configure(Action<FFOptions> configureOptions)
public bool ProcessSynchronously(bool throwOnError = true, FFOptions? ffMpegOptions = null) public bool ProcessSynchronously(bool throwOnError = true, FFOptions? ffMpegOptions = null)
{ {
var options = GetConfiguredOptions(ffMpegOptions); var options = GetConfiguredOptions(ffMpegOptions);
using var instance = PrepareInstance(options, out var cancellationTokenSource); var processArguments = PrepareProcessArguments(options, out var cancellationTokenSource);
processArguments.Exited += delegate { cancellationTokenSource.Cancel(); };
void OnCancelEvent(object sender, int timeout) IProcessResult? processResult = null;
{
instance.SendInput("q");
if (!cancellationTokenSource.Token.WaitHandle.WaitOne(timeout, true))
{
cancellationTokenSource.Cancel();
instance.Started = false;
}
}
CancelEvent += OnCancelEvent;
instance.Exited += delegate { cancellationTokenSource.Cancel(); };
var errorCode = -1;
try try
{ {
errorCode = Process(instance, cancellationTokenSource).ConfigureAwait(false).GetAwaiter().GetResult(); processResult = Process(processArguments, cancellationTokenSource).ConfigureAwait(false).GetAwaiter().GetResult();
} }
catch (Exception e) catch (Exception e)
{ {
if (!HandleException(throwOnError, e, instance.ErrorData)) return false; if (!HandleException(throwOnError, e, processResult?.ErrorData ?? Array.Empty<string>())) return false;
}
finally
{
CancelEvent -= OnCancelEvent;
} }
return HandleCompletion(throwOnError, errorCode, instance.ErrorData); return HandleCompletion(throwOnError, processResult?.ExitCode ?? -1, processResult?.ErrorData ?? Array.Empty<string>());
} }
public async Task<bool> ProcessAsynchronously(bool throwOnError = true, FFOptions? ffMpegOptions = null) public async Task<bool> ProcessAsynchronously(bool throwOnError = true, FFOptions? ffMpegOptions = null)
{ {
var options = GetConfiguredOptions(ffMpegOptions); var options = GetConfiguredOptions(ffMpegOptions);
using var instance = PrepareInstance(options, out var cancellationTokenSource); var processArguments = PrepareProcessArguments(options, out var cancellationTokenSource);
IProcessResult? processResult = null;
try
{
processResult = await Process(processArguments, cancellationTokenSource).ConfigureAwait(false);
}
catch (Exception e)
{
if (!HandleException(throwOnError, e, processResult?.ErrorData ?? Array.Empty<string>())) return false;
}
return HandleCompletion(throwOnError, processResult?.ExitCode ?? -1, processResult?.ErrorData ?? Array.Empty<string>());
}
private async Task<IProcessResult> Process(ProcessArguments processArguments, CancellationTokenSource cancellationTokenSource)
{
IProcessResult processResult = null!;
_ffMpegArguments.Pre();
using var instance = processArguments.Start();
void OnCancelEvent(object sender, int timeout) void OnCancelEvent(object sender, int timeout)
{ {
instance.SendInput("q"); instance.SendInput("q");
@ -124,41 +134,26 @@ void OnCancelEvent(object sender, int timeout)
if (!cancellationTokenSource.Token.WaitHandle.WaitOne(timeout, true)) if (!cancellationTokenSource.Token.WaitHandle.WaitOne(timeout, true))
{ {
cancellationTokenSource.Cancel(); cancellationTokenSource.Cancel();
instance.Started = false; instance.Kill();
} }
} }
CancelEvent += OnCancelEvent; CancelEvent += OnCancelEvent;
var errorCode = -1;
try try
{ {
errorCode = await Process(instance, cancellationTokenSource).ConfigureAwait(false); await Task.WhenAll(instance.WaitForExitAsync().ContinueWith(t =>
} {
catch (Exception e) processResult = t.Result;
{ cancellationTokenSource.Cancel();
if (!HandleException(throwOnError, e, instance.ErrorData)) return false; _ffMpegArguments.Post();
}), _ffMpegArguments.During(cancellationTokenSource.Token)).ConfigureAwait(false);
return processResult;
} }
finally finally
{ {
CancelEvent -= OnCancelEvent; CancelEvent -= OnCancelEvent;
} }
return HandleCompletion(throwOnError, errorCode, instance.ErrorData);
}
private async Task<int> Process(Instance instance, CancellationTokenSource cancellationTokenSource)
{
var errorCode = -1;
_ffMpegArguments.Pre();
await Task.WhenAll(instance.FinishedRunning().ContinueWith(t =>
{
errorCode = t.Result;
cancellationTokenSource.Cancel();
_ffMpegArguments.Post();
}), _ffMpegArguments.During(cancellationTokenSource.Token)).ConfigureAwait(false);
return errorCode;
} }
private bool HandleCompletion(bool throwOnError, int exitCode, IReadOnlyList<string> errorData) private bool HandleCompletion(bool throwOnError, int exitCode, IReadOnlyList<string> errorData)
@ -184,7 +179,7 @@ internal FFOptions GetConfiguredOptions(FFOptions? ffOptions)
return options; return options;
} }
private Instance PrepareInstance(FFOptions ffOptions, private ProcessArguments PrepareProcessArguments(FFOptions ffOptions,
out CancellationTokenSource cancellationTokenSource) out CancellationTokenSource cancellationTokenSource)
{ {
FFMpegHelper.RootExceptionCheck(); FFMpegHelper.RootExceptionCheck();
@ -197,17 +192,25 @@ private Instance PrepareInstance(FFOptions ffOptions,
StandardErrorEncoding = ffOptions.Encoding, StandardErrorEncoding = ffOptions.Encoding,
WorkingDirectory = ffOptions.WorkingDirectory WorkingDirectory = ffOptions.WorkingDirectory
}; };
var instance = new Instance(startInfo); var processArguments = new ProcessArguments(startInfo);
cancellationTokenSource = new CancellationTokenSource(); cancellationTokenSource = new CancellationTokenSource();
if (_onOutput != null || _onTimeProgress != null || (_onPercentageProgress != null && _totalTimespan != null)) if (_onOutput != null || _onTimeProgress != null || (_onPercentageProgress != null && _totalTimespan != null))
instance.DataReceived += OutputData; processArguments.OutputDataReceived += OutputData;
return instance; if (_onError != null)
processArguments.ErrorDataReceived += ErrorData;
return processArguments;
}
private void ErrorData(object sender, string msg)
{
_onError?.Invoke(msg);
} }
private static bool HandleException(bool throwOnError, Exception e, IReadOnlyList<string> errorData) private static bool HandleException(bool throwOnError, Exception e, IEnumerable<string> errorData)
{ {
if (!throwOnError) if (!throwOnError)
return false; return false;
@ -215,12 +218,12 @@ private static bool HandleException(bool throwOnError, Exception e, IReadOnlyLis
throw new FFMpegException(FFMpegExceptionType.Process, "Exception thrown during processing", e, string.Join("\n", errorData)); throw new FFMpegException(FFMpegExceptionType.Process, "Exception thrown during processing", e, string.Join("\n", errorData));
} }
private void OutputData(object sender, (DataType Type, string Data) msg) private void OutputData(object sender, string msg)
{ {
Debug.WriteLine(msg.Data); Debug.WriteLine(msg);
_onOutput?.Invoke(msg.Data, msg.Type); _onOutput?.Invoke(msg);
var match = ProgressRegex.Match(msg.Data); var match = ProgressRegex.Match(msg);
if (!match.Success) return; if (!match.Success) return;
var processed = TimeSpan.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture); var processed = TimeSpan.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture);

4
FFMpegCore/FFMpegCore.csproj
View file

@ -32,9 +32,9 @@
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<PackageReference Include="Instances" Version="1.6.1" /> <PackageReference Include="Instances" Version="2.0.0" />
<PackageReference Include="System.Drawing.Common" Version="5.0.2" /> <PackageReference Include="System.Drawing.Common" Version="5.0.2" />
<PackageReference Include="System.Text.Json" Version="5.0.1" /> <PackageReference Include="System.Text.Json" Version="6.0.2" />
</ItemGroup> </ItemGroup>
</Project> </Project>

139
FFMpegCore/FFProbe/FFProbe.cs
View file

@ -13,61 +13,61 @@ namespace FFMpegCore
{ {
public static class FFProbe public static class FFProbe
{ {
public static IMediaAnalysis Analyse(string filePath, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static IMediaAnalysis Analyse(string filePath, FFOptions? ffOptions = null)
{ {
if (!File.Exists(filePath)) if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'"); throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
using var instance = PrepareStreamAnalysisInstance(filePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var processArguments = PrepareStreamAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var exitCode = instance.BlockUntilFinished(); var result = processArguments.StartAndWaitForExit();
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParseOutput(instance); return ParseOutput(result);
} }
public static FFProbeFrames GetFrames(string filePath, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static FFProbeFrames GetFrames(string filePath, FFOptions? ffOptions = null)
{ {
if (!File.Exists(filePath)) if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'"); throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
using var instance = PrepareFrameAnalysisInstance(filePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareFrameAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var exitCode = instance.BlockUntilFinished(); var result = instance.StartAndWaitForExit();
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParseFramesOutput(instance); return ParseFramesOutput(result);
} }
public static FFProbePackets GetPackets(string filePath, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static FFProbePackets GetPackets(string filePath, FFOptions? ffOptions = null)
{ {
if (!File.Exists(filePath)) if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'"); throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
using var instance = PreparePacketAnalysisInstance(filePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PreparePacketAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var exitCode = instance.BlockUntilFinished(); var result = instance.StartAndWaitForExit();
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParsePacketsOutput(instance); return ParsePacketsOutput(result);
} }
public static IMediaAnalysis Analyse(Uri uri, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static IMediaAnalysis Analyse(Uri uri, FFOptions? ffOptions = null)
{ {
using var instance = PrepareStreamAnalysisInstance(uri.AbsoluteUri, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareStreamAnalysisInstance(uri.AbsoluteUri, ffOptions ?? GlobalFFOptions.Current);
var exitCode = instance.BlockUntilFinished(); var result = instance.StartAndWaitForExit();
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParseOutput(instance); return ParseOutput(result);
} }
public static IMediaAnalysis Analyse(Stream stream, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static IMediaAnalysis Analyse(Stream stream, FFOptions? ffOptions = null)
{ {
var streamPipeSource = new StreamPipeSource(stream); var streamPipeSource = new StreamPipeSource(stream);
var pipeArgument = new InputPipeArgument(streamPipeSource); var pipeArgument = new InputPipeArgument(streamPipeSource);
using var instance = PrepareStreamAnalysisInstance(pipeArgument.PipePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareStreamAnalysisInstance(pipeArgument.PipePath, ffOptions ?? GlobalFFOptions.Current);
pipeArgument.Pre(); pipeArgument.Pre();
var task = instance.FinishedRunning(); var task = instance.StartAndWaitForExitAsync();
try try
{ {
pipeArgument.During().ConfigureAwait(false).GetAwaiter().GetResult(); pipeArgument.During().ConfigureAwait(false).GetAwaiter().GetResult();
@ -77,62 +77,62 @@ public static IMediaAnalysis Analyse(Stream stream, int outputCapacity = int.Max
{ {
pipeArgument.Post(); pipeArgument.Post();
} }
var exitCode = task.ConfigureAwait(false).GetAwaiter().GetResult(); var result = task.ConfigureAwait(false).GetAwaiter().GetResult();
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParseOutput(instance); return ParseOutput(result);
} }
public static async Task<IMediaAnalysis> AnalyseAsync(string filePath, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static async Task<IMediaAnalysis> AnalyseAsync(string filePath, FFOptions? ffOptions = null)
{ {
if (!File.Exists(filePath)) if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'"); throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
using var instance = PrepareStreamAnalysisInstance(filePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareStreamAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var exitCode = await instance.FinishedRunning().ConfigureAwait(false); var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParseOutput(instance); return ParseOutput(result);
} }
public static async Task<FFProbeFrames> GetFramesAsync(string filePath, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static async Task<FFProbeFrames> GetFramesAsync(string filePath, FFOptions? ffOptions = null)
{ {
if (!File.Exists(filePath)) if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'"); throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
using var instance = PrepareFrameAnalysisInstance(filePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareFrameAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
await instance.FinishedRunning().ConfigureAwait(false); var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
return ParseFramesOutput(instance); return ParseFramesOutput(result);
} }
public static async Task<FFProbePackets> GetPacketsAsync(string filePath, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static async Task<FFProbePackets> GetPacketsAsync(string filePath, FFOptions? ffOptions = null)
{ {
if (!File.Exists(filePath)) if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'"); throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
using var instance = PreparePacketAnalysisInstance(filePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PreparePacketAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
await instance.FinishedRunning().ConfigureAwait(false); var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
return ParsePacketsOutput(instance); return ParsePacketsOutput(result);
} }
public static async Task<IMediaAnalysis> AnalyseAsync(Uri uri, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static async Task<IMediaAnalysis> AnalyseAsync(Uri uri, FFOptions? ffOptions = null)
{ {
using var instance = PrepareStreamAnalysisInstance(uri.AbsoluteUri, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareStreamAnalysisInstance(uri.AbsoluteUri, ffOptions ?? GlobalFFOptions.Current);
var exitCode = await instance.FinishedRunning().ConfigureAwait(false); var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", null, string.Join("\n", instance.ErrorData)); throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
return ParseOutput(instance); return ParseOutput(result);
} }
public static async Task<IMediaAnalysis> AnalyseAsync(Stream stream, int outputCapacity = int.MaxValue, FFOptions? ffOptions = null) public static async Task<IMediaAnalysis> AnalyseAsync(Stream stream, FFOptions? ffOptions = null)
{ {
var streamPipeSource = new StreamPipeSource(stream); var streamPipeSource = new StreamPipeSource(stream);
var pipeArgument = new InputPipeArgument(streamPipeSource); var pipeArgument = new InputPipeArgument(streamPipeSource);
using var instance = PrepareStreamAnalysisInstance(pipeArgument.PipePath, outputCapacity, ffOptions ?? GlobalFFOptions.Current); var instance = PrepareStreamAnalysisInstance(pipeArgument.PipePath, ffOptions ?? GlobalFFOptions.Current);
pipeArgument.Pre(); pipeArgument.Pre();
var task = instance.FinishedRunning(); var task = instance.StartAndWaitForExitAsync();
try try
{ {
await pipeArgument.During().ConfigureAwait(false); await pipeArgument.During().ConfigureAwait(false);
@ -144,15 +144,15 @@ public static async Task<IMediaAnalysis> AnalyseAsync(Stream stream, int outputC
{ {
pipeArgument.Post(); pipeArgument.Post();
} }
var exitCode = await task.ConfigureAwait(false); var result = await task.ConfigureAwait(false);
if (exitCode != 0) if (result.ExitCode != 0)
throw new FFProbeProcessException($"ffprobe exited with non-zero exit-code ({exitCode} - {string.Join("\n", instance.ErrorData)})", instance.ErrorData); throw new FFProbeProcessException($"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", result.ErrorData);
pipeArgument.Post(); pipeArgument.Post();
return ParseOutput(instance); return ParseOutput(result);
} }
private static IMediaAnalysis ParseOutput(Instance instance) private static IMediaAnalysis ParseOutput(IProcessResult instance)
{ {
var json = string.Join(string.Empty, instance.OutputData); var json = string.Join(string.Empty, instance.OutputData);
var ffprobeAnalysis = JsonSerializer.Deserialize<FFProbeAnalysis>(json, new JsonSerializerOptions var ffprobeAnalysis = JsonSerializer.Deserialize<FFProbeAnalysis>(json, new JsonSerializerOptions
@ -165,7 +165,7 @@ private static IMediaAnalysis ParseOutput(Instance instance)
return new MediaAnalysis(ffprobeAnalysis); return new MediaAnalysis(ffprobeAnalysis);
} }
private static FFProbeFrames ParseFramesOutput(Instance instance) private static FFProbeFrames ParseFramesOutput(IProcessResult instance)
{ {
var json = string.Join(string.Empty, instance.OutputData); var json = string.Join(string.Empty, instance.OutputData);
var ffprobeAnalysis = JsonSerializer.Deserialize<FFProbeFrames>(json, new JsonSerializerOptions var ffprobeAnalysis = JsonSerializer.Deserialize<FFProbeFrames>(json, new JsonSerializerOptions
@ -177,7 +177,7 @@ private static FFProbeFrames ParseFramesOutput(Instance instance)
return ffprobeAnalysis; return ffprobeAnalysis;
} }
private static FFProbePackets ParsePacketsOutput(Instance instance) private static FFProbePackets ParsePacketsOutput(IProcessResult instance)
{ {
var json = string.Join(string.Empty, instance.OutputData); var json = string.Join(string.Empty, instance.OutputData);
var ffprobeAnalysis = JsonSerializer.Deserialize<FFProbePackets>(json, new JsonSerializerOptions var ffprobeAnalysis = JsonSerializer.Deserialize<FFProbePackets>(json, new JsonSerializerOptions
@ -190,14 +190,14 @@ private static FFProbePackets ParsePacketsOutput(Instance instance)
} }
private static Instance PrepareStreamAnalysisInstance(string filePath, int outputCapacity, FFOptions ffOptions) private static ProcessArguments PrepareStreamAnalysisInstance(string filePath, FFOptions ffOptions)
=> PrepareInstance($"-loglevel error -print_format json -show_format -sexagesimal -show_streams \"{filePath}\"", outputCapacity, ffOptions); => PrepareInstance($"-loglevel error -print_format json -show_format -sexagesimal -show_streams \"{filePath}\"", ffOptions);
private static Instance PrepareFrameAnalysisInstance(string filePath, int outputCapacity, FFOptions ffOptions) private static ProcessArguments PrepareFrameAnalysisInstance(string filePath, FFOptions ffOptions)
=> PrepareInstance($"-loglevel error -print_format json -show_frames -v quiet -sexagesimal \"{filePath}\"", outputCapacity, ffOptions); => PrepareInstance($"-loglevel error -print_format json -show_frames -v quiet -sexagesimal \"{filePath}\"", ffOptions);
private static Instance PreparePacketAnalysisInstance(string filePath, int outputCapacity, FFOptions ffOptions) private static ProcessArguments PreparePacketAnalysisInstance(string filePath, FFOptions ffOptions)
=> PrepareInstance($"-loglevel error -print_format json -show_packets -v quiet -sexagesimal \"{filePath}\"", outputCapacity, ffOptions); => PrepareInstance($"-loglevel error -print_format json -show_packets -v quiet -sexagesimal \"{filePath}\"", ffOptions);
private static Instance PrepareInstance(string arguments, int outputCapacity, FFOptions ffOptions) private static ProcessArguments PrepareInstance(string arguments, FFOptions ffOptions)
{ {
FFProbeHelper.RootExceptionCheck(); FFProbeHelper.RootExceptionCheck();
FFProbeHelper.VerifyFFProbeExists(ffOptions); FFProbeHelper.VerifyFFProbeExists(ffOptions);
@ -207,8 +207,7 @@ private static Instance PrepareInstance(string arguments, int outputCapacity, FF
StandardErrorEncoding = ffOptions.Encoding, StandardErrorEncoding = ffOptions.Encoding,
WorkingDirectory = ffOptions.WorkingDirectory WorkingDirectory = ffOptions.WorkingDirectory
}; };
var instance = new Instance(startInfo) { DataBufferCapacity = outputCapacity }; return new ProcessArguments(startInfo);
return instance;
} }
} }
} }

20
FFMpegCore/FFProbe/ProcessArgumentsExtensions.cs Normal file
View file

@ -0,0 +1,20 @@
using System.Threading;
using System.Threading.Tasks;
using Instances;
namespace FFMpegCore
{
public static class ProcessArgumentsExtensions
{
public static IProcessResult StartAndWaitForExit(this ProcessArguments processArguments)
{
using var instance = processArguments.Start();
return instance.WaitForExit();
}
public static async Task<IProcessResult> StartAndWaitForExitAsync(this ProcessArguments processArguments, CancellationToken cancellationToken = default)
{
using var instance = processArguments.Start();
return await instance.WaitForExitAsync(cancellationToken);
}
}
}

4
FFMpegCore/Helpers/FFMpegHelper.cs
View file

@ -38,8 +38,8 @@ public static void RootExceptionCheck()
public static void VerifyFFMpegExists(FFOptions ffMpegOptions) public static void VerifyFFMpegExists(FFOptions ffMpegOptions)
{ {
if (_ffmpegVerified) return; if (_ffmpegVerified) return;
var (exitCode, _) = Instance.Finish(GlobalFFOptions.GetFFMpegBinaryPath(ffMpegOptions), "-version"); var result = Instance.Finish(GlobalFFOptions.GetFFMpegBinaryPath(ffMpegOptions), "-version");
_ffmpegVerified = exitCode == 0; _ffmpegVerified = result.ExitCode == 0;
if (!_ffmpegVerified) if (!_ffmpegVerified)
throw new FFMpegException(FFMpegExceptionType.Operation, "ffmpeg was not found on your system"); throw new FFMpegException(FFMpegExceptionType.Operation, "ffmpeg was not found on your system");
} }

4
FFMpegCore/Helpers/FFProbeHelper.cs
View file

@ -27,8 +27,8 @@ public static void RootExceptionCheck()
public static void VerifyFFProbeExists(FFOptions ffMpegOptions) public static void VerifyFFProbeExists(FFOptions ffMpegOptions)
{ {
if (_ffprobeVerified) return; if (_ffprobeVerified) return;
var (exitCode, _) = Instance.Finish(GlobalFFOptions.GetFFProbeBinaryPath(ffMpegOptions), "-version"); var result = Instance.Finish(GlobalFFOptions.GetFFProbeBinaryPath(ffMpegOptions), "-version");
_ffprobeVerified = exitCode == 0; _ffprobeVerified = result.ExitCode == 0;
if (!_ffprobeVerified) if (!_ffprobeVerified)
throw new FFProbeException("ffprobe was not found on your system"); throw new FFProbeException("ffprobe was not found on your system");
} }