Show record init errors.

Telegram/Resources/langs/lang.strings

@@ -3248,6 +3248,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_record_lock_discard" = "Discard";
 "lng_record_voice_tip" = "Hold to record audio. Click to switch to video.";
 "lng_record_video_tip" = "Hold to record video. Click to switch to audio.";
+"lng_record_audio_problem" = "Could not start audio recording. Please check your microphone.";
+"lng_record_video_problem" = "Could not start video recording. Please check your camera.";
 "lng_record_once_first_tooltip" = "Click to set this message to **Play Once**.";
 "lng_record_once_active_tooltip" = "The recipient will be able to listen only once.";
 "lng_will_be_notified" = "Subscribers will be notified when you post.";

Telegram/SourceFiles/history/view/controls/history_view_compose_controls.cpp

@@ -2429,6 +2429,24 @@ void ComposeControls::initVoiceRecordBar() {
 		}
 	}, _wrap->lifetime());
 
+	_voiceRecordBar->errors(
+	) | rpl::start_with_next([=](::Media::Capture::Error error) {
+		using Error = ::Media::Capture::Error;
+		switch (error) {
+		case Error::AudioInit:
+		case Error::AudioTimeout:
+			_show->showToast(tr::lng_record_audio_problem(tr::now));
+			break;
+		case Error::VideoInit:
+		case Error::VideoTimeout:
+			_show->showToast(tr::lng_record_video_problem(tr::now));
+			break;
+		default:
+			_show->showToast(u"Unknown error."_q);
+			break;
+		}
+	}, _wrap->lifetime());
+
 	_voiceRecordBar->updateSendButtonTypeRequests(
 	) | rpl::start_with_next([=] {
 		updateSendButtonType();

Telegram/SourceFiles/history/view/controls/history_view_voice_record_bar.cpp

@@ -50,9 +50,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace HistoryView::Controls {
 namespace {
 
-using SendActionUpdate = VoiceRecordBar::SendActionUpdate;
-using VoiceToSend = VoiceRecordBar::VoiceToSend;
-
 constexpr auto kAudioVoiceUpdateView = crl::time(200);
 constexpr auto kAudioVoiceMaxLength = 100 * 60; // 100 minutes
 constexpr auto kMaxSamples
@@ -1703,8 +1700,9 @@ void VoiceRecordBar::startRecording() {
 				if (update.finished) {
 					stop(update.samples >= kMinSamples);
 				}
-			}, [=] {
+			}, [=](Error error) {
 				stop(false);
+				_errors.fire_copy(error);
 			}, _recordingLifetime);
 		}
 		_recordingLifetime.add([=] {
@@ -2025,6 +2023,10 @@ rpl::producer<> VoiceRecordBar::recordingTipRequests() const {
 	return _recordingTipRequests.events();
 }
 
+auto VoiceRecordBar::errors() const -> rpl::producer<Error> {
+	return _errors.events();
+}
+
 bool VoiceRecordBar::isLockPresent() const {
 	return _lockShowing.current();
 }

Telegram/SourceFiles/history/view/controls/history_view_voice_record_bar.h

@@ -21,6 +21,10 @@ namespace style {
 struct RecordBar;
 } // namespace style
 
+namespace Media::Capture {
+enum class Error : uchar;
+} // namespace Media::Capture
+
 namespace Ui {
 class AbstractButton;
 class SendButton;
@@ -57,6 +61,7 @@ public:
 	using SendActionUpdate = Controls::SendActionUpdate;
 	using VoiceToSend = Controls::VoiceToSend;
 	using FilterCallback = Fn<bool()>;
+	using Error = ::Media::Capture::Error;
 
 	VoiceRecordBar(
 		not_null<Ui::RpWidget*> parent,
@@ -88,6 +93,7 @@ public:
 	[[nodiscard]] rpl::producer<not_null<QEvent*>> lockViewportEvents() const;
 	[[nodiscard]] rpl::producer<> updateSendButtonTypeRequests() const;
 	[[nodiscard]] rpl::producer<> recordingTipRequests() const;
+	[[nodiscard]] rpl::producer<Error> errors() const;
 
 	void requestToSendWithOptions(Api::SendOptions options);
 
@@ -173,6 +179,7 @@ private:
 	rpl::event_stream<VoiceToSend> _sendVoiceRequests;
 	rpl::event_stream<> _cancelRequests;
 	rpl::event_stream<> _listenChanges;
+	rpl::event_stream<Error> _errors;
 
 	int _centerY = 0;
 	QRect _redCircleRect;

Telegram/SourceFiles/ui/controls/round_video_recorder.cpp

@@ -26,7 +26,8 @@ constexpr auto kUpdateEach = crl::time(100);
 constexpr auto kAudioFrequency = 48'000;
 constexpr auto kAudioBitRate = 32'000;
 constexpr auto kVideoBitRate = 3 * 1024 * 1024;
-constexpr auto kMaxDuration = 10 * crl::time(1000);
+constexpr auto kMinDuration = crl::time(200);
+constexpr auto kMaxDuration = 60 * crl::time(1000);
 constexpr auto kInitTimeout = 5 * crl::time(1000);
 
 using namespace FFmpeg;
@@ -384,6 +385,9 @@ RoundVideoResult RoundVideoRecorder::Private::finish() {
 		return {};
 	}
 	finishEncoding();
+	if (_resultDuration < kMinDuration) {
+		return {};
+	}
 	return {
 		.content = _result,
 		.waveform = QByteArray(),