Files
AmiReel/Services/FfmpegProgressParser.cs
klevze c412469773 Add unit tests, dedupe FFmpeg output filtering, harden settings records
Implements the suggestions from the last review pass:

- Add AmiReel.Tests (MSTest), covering the pure logic in Models/ and
  Services/: SupportedVideoFormats, AppSettings normalization,
  UserFacingErrors.Summarize, the new FfmpegProgressParser/
  FfmpegOutputFilter, RenderPipeline.Validate, BuildProgressMessage, and
  MoveSourceVideos. 59 tests, all passing. UI code-behind and anything that
  spawns an actual FFmpeg process are left to manual/integration testing.
  Exclude AmiReel.Tests\**\*.cs from AmiReel.csproj's default item glob —
  it's a subfolder of the app project now, so without the exclude the app
  itself was compiling the MSTest-only test files.

- Extract the FFmpeg version/library-banner boilerplate list that
  ProcessRunner (live log filter) and UserFacingErrors (error summarizer)
  had each duplicated into a shared FfmpegOutputFilter.IsBoilerplateLine;
  each caller keeps its own remaining context-specific checks on top.
  Also extract ProcessRunner's line-parsing regexes into a standalone
  FfmpegProgressParser so it's directly unit-testable without spawning a
  process.

- Convert AppSettings and RenderSettings from positional record
  constructors to named `required` init properties. Both records had
  runs of same-typed consecutive parameters (three string timing fields
  in AppSettings; three doubles then five ints in RenderSettings) that a
  positional constructor would let get silently transposed at a call site
  without the compiler catching it. Update the two call sites
  (MainPage.xaml.cs) to object-initializer syntax.

- Add Properties/AssemblyInfo.cs with InternalsVisibleTo("AmiReel.Tests")
  and make Validate/BuildProgressMessage/IsNoise internal so tests can
  reach them directly instead of only through process-spawning entry
  points.

- README: document `dotnet test`, and note that Package.appxmanifest's
  Identity is a local-dev placeholder that needs a real publisher/cert
  before MSIX distribution.

Verified: dotnet build (solution + test project) is 0 warnings/errors,
dotnet test is 59/59 passing, and the app still launches unchanged.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-13 14:27:57 +02:00

45 lines
1.8 KiB
C#

using System.Globalization;
using System.Text.RegularExpressions;
namespace AmiReel.Services;
public sealed record FfmpegOutputLine(string Line, TimeSpan? Time, double? FramesPerSecond, double? Speed, int? Frame);
/// <summary>
/// Parses a single line of FFmpeg stdout/stderr for the `time=`/`frame=`/`fps=`/`speed=`
/// progress fields FFmpeg prints while encoding.
/// </summary>
public static partial class FfmpegProgressParser
{
public static FfmpegOutputLine Parse(string line)
{
TimeSpan? time = null;
double? fps = null;
double? speed = null;
int? frame = null;
Match timeMatch = TimeRegex().Match(line);
if (timeMatch.Success && TimeSpan.TryParse(timeMatch.Groups[1].Value, CultureInfo.InvariantCulture, out TimeSpan parsedTime))
time = parsedTime;
Match frameMatch = FrameRegex().Match(line);
if (frameMatch.Success)
{
if (int.TryParse(frameMatch.Groups["frame"].Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out int parsedFrame))
frame = parsedFrame;
if (double.TryParse(frameMatch.Groups["fps"].Value, NumberStyles.Float, CultureInfo.InvariantCulture, out double parsedFps))
fps = parsedFps;
if (double.TryParse(frameMatch.Groups["speed"].Value, NumberStyles.Float, CultureInfo.InvariantCulture, out double parsedSpeed))
speed = parsedSpeed;
}
return new FfmpegOutputLine(line, time, fps, speed, frame);
}
[GeneratedRegex(@"time=(\d{2}:\d{2}:\d{2}(?:\.\d+)?)", RegexOptions.CultureInvariant)]
private static partial Regex TimeRegex();
[GeneratedRegex(@"frame=\s*(?<frame>\d+).*?fps=\s*(?<fps>\d+(?:\.\d+)?).*?speed=\s*(?<speed>\d+(?:\.\d+)?)x", RegexOptions.CultureInvariant)]
private static partial Regex FrameRegex();
}