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TASK 18: local (record-only) recording pipeline + top-bar pills/light/Start-End button UX

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Encoder dual-output: StreamEnabled/RecordEnabled/RecordPath options; per-output
ffmpeg block (stream ->flv, record ->mp4); throw unless at least one output.

RecordingFile: auto-name ty-<yyyymmdd>-<start hhmm>-0000.mp4, rename-on-stop to
ty-...-<len hhmmss>.mp4 with numeric-suffix on collision. LayoutStore persists
record folder. MainViewModel: REC/ON-AIR pills, status light, single Start<->End
button (replaces Start/Stop variants), StopStream no longer signs out, explicit
session timer. About overlay widened. Sign In label + spacing before Start.

Tests: 244 passed / 246 (2 pre-existing: AudioPipeline gains-mute, RoundClip).
Build 0 warnings. Scope check clean.

Memory-map correction (derived-solution rule, 2026-08-29): image-shrink recipe was
never recorded when first done, so it was re-derived. Added Derived-solution/recipes
rule to AGENTS.md; MyMistakes.md now a permanent recipes registry (records the
verified WPF-imaging shrink recipe); schema.md rows MyMistakes as registry; ai.md
points to the rule. README hero image replaced: 3.2MB screenshot -> 1400x794 ->
188KB docs/ytLlive-preview.jpg (JPEG q82).
This commit is contained in:
Llama Chile Shop
2026-08-29 09:02:55 -07:00
parent 1e633f9bd9
commit a9eb360288
20 changed files with 708 additions and 151 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Services/Encoder/FfmpegArgs.cs
+39 -29
View File
@@ -12,40 +12,50 @@ public static class FfmpegArgs
{
public static IReadOnlyList<string> Build(EncoderOptions options, string videoEncoder)
{
var gop = options.GopSize;
return
[
"-hide_banner",
"-loglevel", "info",
"-stats",
"-stats_period", "0.5",
var args = new List<string>
{
"-hide_banner", "-loglevel", "info",
"-stats", "-stats_period", "0.5",
"-re",
"-f", "rawvideo",
"-pix_fmt", "bgra",
"-f", "rawvideo", "-pix_fmt", "bgra",
"-video_size", $"{options.Width}x{options.Height}",
"-framerate", options.Fps.ToString(),
"-i", "pipe:0",
"-f", "f32le",
"-ar", options.AudioSampleRate.ToString(),
"-f", "f32le", "-ar", options.AudioSampleRate.ToString(),
"-ac", options.AudioChannels.ToString(),
"-i", $@"\\.\pipe\{options.AudioPipeName}",
"-map", "0:v",
"-map", "1:a",
"-c:v", videoEncoder,
"-b:v", $"{options.BitrateKbps}k",
"-maxrate", $"{options.BitrateKbps}k",
"-bufsize", $"{options.BitrateKbps * 2}k",
"-g", gop.ToString(),
"-keyint_min", gop.ToString(),
"-sc_threshold", "0",
"-bf", "0",
"-pix_fmt", "yuv420p",
"-c:a", "aac",
"-b:a", "128k",
"-ar", options.AudioSampleRate.ToString(),
"-ac", options.AudioChannels.ToString(),
"-f", "flv",
options.RtmpUrl,
];
};
// Each output is a self-contained block: its own -map, codec options,
// format, and destination. Record+stream encodes the video twice off the
// one raw input pipe (cheap on NVENC).
if (options.StreamEnabled)
{
AddVideoTags(args, options, videoEncoder);
args.AddRange(["-c:a", "aac", "-b:a", "128k",
"-ar", options.AudioSampleRate.ToString(), "-ac", options.AudioChannels.ToString()]);
args.AddRange(["-f", "flv", options.RtmpUrl]);
}
if (options.RecordEnabled)
{
AddVideoTags(args, options, videoEncoder);
args.AddRange(["-c:a", "aac",
"-ar", options.AudioSampleRate.ToString(), "-ac", options.AudioChannels.ToString()]);
args.AddRange(["-f", "mp4", options.RecordPath!]);
}
return args;
}
private static void AddVideoTags(List<string> args, EncoderOptions options, string videoEncoder)
{
var gop = options.GopSize;
args.AddRange(["-map", "0:v", "-map", "1:a"]);
args.AddRange(["-c:v", videoEncoder]);
args.AddRange(["-b:v", $"{options.BitrateKbps}k", "-maxrate", $"{options.BitrateKbps}k",
"-bufsize", $"{options.BitrateKbps * 2}k"]);
args.AddRange(["-g", gop.ToString(), "-keyint_min", gop.ToString(),
"-sc_threshold", "0", "-bf", "0", "-pix_fmt", "yuv420p"]);
}
}