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Fix MPEG movie startup cadence

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gamer147
2026-07-28 12:16:16 -04:00
parent b2f1b4a45e
commit fdc7bb2bbc
10 changed files with 269 additions and 34 deletions
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14
godot/Main.cs
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@@ -624,6 +624,7 @@ public partial class Main : Godot.Control
stop_time_ms = pair.Value.Decoder.StopTimeMs,
decoder_completed = pair.Value.Decoder.IsCompleted,
decoder_failure = pair.Value.Decoder.Failure,
first_frame_source_pts_ms = pair.Value.Decoder.FirstFramePresentationTimeMs,
frame_seen = _movieFrameSeen.Contains(pair.Key),
completion_notified = _movieCompletionNotified.Contains(pair.Key),
watchdog_ms = pair.Value.WatchdogMs,
@@ -649,6 +650,7 @@ public partial class Main : Godot.Control
stop_time_ms = pair.Value.Decoder.StopTimeMs,
decoder_completed = pair.Value.Decoder.IsCompleted,
decoder_failure = pair.Value.Decoder.Failure,
first_frame_source_pts_ms = pair.Value.Decoder.FirstFramePresentationTimeMs,
})
.ToArray();
var snapshot = new
@@ -1804,13 +1806,21 @@ public partial class Main : Godot.Control
if (_host == null) return;
foreach (var (playbackId, movie) in _movies)
{
if (_movieAudio.TryGetValue(playbackId, out var audio)) audio.Update();
bool frameWasAlreadySeen = _movieFrameSeen.Contains(playbackId);
_movieAudio.TryGetValue(playbackId, out var audio);
if (frameWasAlreadySeen) audio?.Update();
if (movie.Decoder.TryTakeFrame(out var frame))
{
_host.PublishMovieFrame(playbackId, movie.Name, movie.AssetId, frame);
if (_movieFrameSeen.Add(playbackId))
{
GD.Print($"movie first frame {movie.Name} playback={playbackId}: " +
$"{frame.Width}x{frame.Height} RGBA8 at render frame {_timelineFrame}");
$"{frame.Width}x{frame.Height} RGBA8 at render frame {_timelineFrame} " +
$"(source PTS {movie.Decoder.FirstFramePresentationTimeMs?.ToString() ?? "unknown"} ms)");
// Do not let decode startup consume the opening audio timeline. The first PCM push
// begins only after the first decoded image has reached the retained movie surface.
audio?.Update();
}
}
bool watchdogExpired = Stopwatch.GetElapsedTime(movie.StartedAtTimestamp).TotalMilliseconds
>= movie.WatchdogMs;