Expose track completion to desktop and retain the longer media tail

src/stream/stream_media_buffer.c

@@ -320,6 +320,7 @@ int stream_media_cursor_status(struct stream_media_cursor *c, struct stream_medi
         status.ready_us = status.video_us;
         if (status.audio_enabled && status.audio_us < status.ready_us) status.ready_us = status.audio_us;
         if (s->finished && c->video.ended && status.audio_enabled) status.ready_us = status.audio_us;
+        if (s->finished && c->audio.ended && status.video_us > status.ready_us) status.ready_us = status.video_us;
         status.video_ended = c->video.ended; status.audio_ended = c->audio.ended;
         status.start_us = c->start_us; status.generation = c->generation; status.initialized = 1;
     }

tools/chatgui/transport/stream_bridge.cpp

@@ -33,6 +33,8 @@ StreamRecord takeRecord(uint64_t id, stream_viewer_record* r) {
     case STREAM_VIEWER_OPENED: record.kind = StreamRecordKind::Opened; break;
     case STREAM_VIEWER_END: record.kind = StreamRecordKind::End; break;
     case STREAM_VIEWER_CLOSED: record.kind = StreamRecordKind::Closed; break;
+    case STREAM_VIEWER_VIDEO_END: record.kind = StreamRecordKind::VideoEnd; break;
+    case STREAM_VIEWER_AUDIO_END: record.kind = StreamRecordKind::AudioEnd; break;
     }
     record.id = id; record.pts = r->pts; record.format = r->format; record.flags = r->flags; record.reason = r->reason;
     record.data = QByteArray(reinterpret_cast<const char*>(r->data), static_cast<int>(r->length));

tools/chatgui/transport/stream_bridge.h

@@ -13,7 +13,7 @@
 #include "../../../src/stream/stream_publisher.h"
 
 struct UTUN_INSTANCE;
-enum class StreamRecordKind { Video, Audio, Gap, Opened, End, Closed };
+enum class StreamRecordKind { Video, Audio, Gap, Opened, End, Closed, VideoEnd, AudioEnd };
 struct StreamRecord {
     uint64_t id = 0, pts = 0;
     StreamRecordKind kind = StreamRecordKind::Gap;