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Add fragment transfer estimate

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Janez T
2026-03-05 09:38:39 +01:00
parent 55a85659d3
commit 76b093685e
4 changed files with 77 additions and 2 deletions
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23
lib/providers/voice_provider.dart
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@@ -13,6 +13,8 @@ class VoiceSession {
final VoicePacketMode mode;
final int total;
final List<VoicePacket?> packets; // indexed by packet.index
DateTime? firstPacketAt;
DateTime? lastPacketAt;
VoiceSession({
required this.sessionId,
@@ -23,6 +25,19 @@ class VoiceSession {
int get receivedCount => packets.where((p) => p != null).length;
bool get isComplete => receivedCount == total;
Duration? estimateRemaining() {
if (isComplete) return Duration.zero;
if (firstPacketAt == null || lastPacketAt == null) return null;
if (receivedCount < 2) return null;
final elapsedMs = lastPacketAt!.difference(firstPacketAt!).inMilliseconds;
if (elapsedMs <= 0) return null;
final avgMsPerPacket = elapsedMs / (receivedCount - 1);
final remaining = total - receivedCount;
if (remaining <= 0) return Duration.zero;
return Duration(milliseconds: (avgMsPerPacket * remaining).round());
}
/// Total estimated audio duration in seconds (sum of all received packets).
double get estimatedDurationSeconds {
var ms = 0;
@@ -93,6 +108,8 @@ class VoiceProvider with ChangeNotifier {
bool hasOutgoingSession(String sessionId) =>
_outgoingSessions.containsKey(sessionId);
Duration? estimateRemainingTransferTime(String sessionId) =>
_sessions[sessionId]?.estimateRemaining();
List<int> missingPacketIndices(String sessionId) {
final session = _sessions[sessionId];
@@ -120,7 +137,13 @@ class VoiceProvider with ChangeNotifier {
final session = _sessions[packet.sessionId]!;
if (packet.index < session.total) {
final wasMissing = session.packets[packet.index] == null;
session.packets[packet.index] = packet;
if (wasMissing) {
final now = DateTime.now();
session.firstPacketAt ??= now;
session.lastPacketAt = now;
}
}
final justComplete = session.isComplete;