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Support cancellationtoken on async ffprobe calls #299

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Malte Rosenbjerg 2022-03-24 20:34:25 +01:00
parent 2133d31021
commit da251e99ad
1 changed files with 44 additions and 39 deletions
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83
FFMpegCore/FFProbe/FFProbe.cs
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@ -2,6 +2,7 @@
using System.Diagnostics;
using System.IO;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using FFMpegCore.Arguments;
using FFMpegCore.Exceptions;
@ -15,38 +16,33 @@ public static class FFProbe
{
public static IMediaAnalysis Analyse(string filePath, FFOptions? ffOptions = null)
{
if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
ThrowIfInputFileDoesNotExist(filePath);
var processArguments = PrepareStreamAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var result = processArguments.StartAndWaitForExit();
if (result.ExitCode != 0)
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));
ThrowIfExitCodeNotZero(result);
return ParseOutput(result);
}
public static FFProbeFrames GetFrames(string filePath, FFOptions? ffOptions = null)
{
if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
ThrowIfInputFileDoesNotExist(filePath);
var instance = PrepareFrameAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var result = instance.StartAndWaitForExit();
if (result.ExitCode != 0)
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));
ThrowIfExitCodeNotZero(result);
return ParseFramesOutput(result);
}
public static FFProbePackets GetPackets(string filePath, FFOptions? ffOptions = null)
{
if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
ThrowIfInputFileDoesNotExist(filePath);
var instance = PreparePacketAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var result = instance.StartAndWaitForExit();
if (result.ExitCode != 0)
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));
ThrowIfExitCodeNotZero(result);
return ParsePacketsOutput(result);
}
@ -55,8 +51,7 @@ public static IMediaAnalysis Analyse(Uri uri, FFOptions? ffOptions = null)
{
var instance = PrepareStreamAnalysisInstance(uri.AbsoluteUri, ffOptions ?? GlobalFFOptions.Current);
var result = instance.StartAndWaitForExit();
if (result.ExitCode != 0)
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));
ThrowIfExitCodeNotZero(result);
return ParseOutput(result);
}
@ -78,64 +73,59 @@ public static IMediaAnalysis Analyse(Stream stream, FFOptions? ffOptions = null)
pipeArgument.Post();
}
var result = task.ConfigureAwait(false).GetAwaiter().GetResult();
if (result.ExitCode != 0)
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));
ThrowIfExitCodeNotZero(result);
return ParseOutput(result);
}
public static async Task<IMediaAnalysis> AnalyseAsync(string filePath, FFOptions? ffOptions = null)
public static async Task<IMediaAnalysis> AnalyseAsync(string filePath, FFOptions? ffOptions = null, CancellationToken cancellationToken = default)
{
if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
ThrowIfInputFileDoesNotExist(filePath);
var instance = PrepareStreamAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
if (result.ExitCode != 0)
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));
var result = await instance.StartAndWaitForExitAsync(cancellationToken).ConfigureAwait(false);
ThrowIfExitCodeNotZero(result);
return ParseOutput(result);
}
public static async Task<FFProbeFrames> GetFramesAsync(string filePath, FFOptions? ffOptions = null)
public static async Task<FFProbeFrames> GetFramesAsync(string filePath, FFOptions? ffOptions = null, CancellationToken cancellationToken = default)
{
if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
ThrowIfInputFileDoesNotExist(filePath);
var instance = PrepareFrameAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
var result = await instance.StartAndWaitForExitAsync(cancellationToken).ConfigureAwait(false);
return ParseFramesOutput(result);
}
public static async Task<FFProbePackets> GetPacketsAsync(string filePath, FFOptions? ffOptions = null)
public static async Task<FFProbePackets> GetPacketsAsync(string filePath, FFOptions? ffOptions = null, CancellationToken cancellationToken = default)
{
if (!File.Exists(filePath))
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
ThrowIfInputFileDoesNotExist(filePath);
var instance = PreparePacketAnalysisInstance(filePath, ffOptions ?? GlobalFFOptions.Current);
var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
var result = await instance.StartAndWaitForExitAsync(cancellationToken).ConfigureAwait(false);
return ParsePacketsOutput(result);
}
public static async Task<IMediaAnalysis> AnalyseAsync(Uri uri, FFOptions? ffOptions = null)
public static async Task<IMediaAnalysis> AnalyseAsync(Uri uri, FFOptions? ffOptions = null, CancellationToken cancellationToken = default)
{
var instance = PrepareStreamAnalysisInstance(uri.AbsoluteUri, ffOptions ?? GlobalFFOptions.Current);
var result = await instance.StartAndWaitForExitAsync().ConfigureAwait(false);
if (result.ExitCode != 0)
throw new FFMpegException(FFMpegExceptionType.Process, $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", null, string.Join("\n", result.ErrorData));
var result = await instance.StartAndWaitForExitAsync(cancellationToken).ConfigureAwait(false);
ThrowIfExitCodeNotZero(result);
return ParseOutput(result);
}
public static async Task<IMediaAnalysis> AnalyseAsync(Stream stream, FFOptions? ffOptions = null)
public static async Task<IMediaAnalysis> AnalyseAsync(Stream stream, FFOptions? ffOptions = null, CancellationToken cancellationToken = default)
{
var streamPipeSource = new StreamPipeSource(stream);
var pipeArgument = new InputPipeArgument(streamPipeSource);
var instance = PrepareStreamAnalysisInstance(pipeArgument.PipePath, ffOptions ?? GlobalFFOptions.Current);
pipeArgument.Pre();
var task = instance.StartAndWaitForExitAsync();
var task = instance.StartAndWaitForExitAsync(cancellationToken);
try
{
await pipeArgument.During().ConfigureAwait(false);
await pipeArgument.During(cancellationToken).ConfigureAwait(false);
}
catch(IOException)
{
@ -145,8 +135,7 @@ public static async Task<IMediaAnalysis> AnalyseAsync(Stream stream, FFOptions?
pipeArgument.Post();
}
var result = await task.ConfigureAwait(false);
if (result.ExitCode != 0)
throw new FFProbeProcessException($"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})", result.ErrorData);
ThrowIfExitCodeNotZero(result);
pipeArgument.Post();
return ParseOutput(result);
@ -189,6 +178,22 @@ private static FFProbePackets ParsePacketsOutput(IProcessResult instance)
return ffprobeAnalysis;
}
private static void ThrowIfInputFileDoesNotExist(string filePath)
{
if (!File.Exists(filePath))
{
throw new FFMpegException(FFMpegExceptionType.File, $"No file found at '{filePath}'");
}
}
private static void ThrowIfExitCodeNotZero(IProcessResult result)
{
if (result.ExitCode != 0)
{
var message = $"ffprobe exited with non-zero exit-code ({result.ExitCode} - {string.Join("\n", result.ErrorData)})";
throw new FFMpegException(FFMpegExceptionType.Process, message, null, string.Join("\n", result.ErrorData));
}
}
private static ProcessArguments PrepareStreamAnalysisInstance(string filePath, FFOptions ffOptions)
=> PrepareInstance($"-loglevel error -print_format json -show_format -sexagesimal -show_streams \"{filePath}\"", ffOptions);