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@ -40,6 +40,13 @@ QString text(const char* value) { return QCoreApplication::translate("ChatGui",
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struct StreamPlayerWindow::Playback { |
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struct Video { QImage image; int64_t pts; }; |
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struct AudioGap { |
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uint64_t count = 0, silentFrames = 0; |
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unsigned requested = 0, received = 0; |
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int64_t reserve = 0, feedAge = -1, workerAge = -1, audioPts = -1; |
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size_t videoQueue = 0; |
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bool held = false; |
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} audioGap; |
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uint64_t id = ++nextId, group = 0, source = 0, epoch = 0; |
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std::atomic<bool> running{true}, audioAvailable{false}; |
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std::atomic<float> volume{1.0f}; |
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@ -56,6 +63,7 @@ struct StreamPlayerWindow::Playback {
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uint64_t audioFrameStart = 0, shown = 0, underruns = 0, endFrames = UINT64_MAX; |
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bool started = false, presenting = false, videoReady = false, ended = false, videoEnded = false; |
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bool activeAudio = false, holdAudio = false, resync = false; |
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int64_t audioFedAt = 0, audioFedPts = -1, workerAt = 0; |
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~Playback() { stream_playback_audio_destroy(sound); } |
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uint64_t played(int64_t now) const { |
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@ -128,7 +136,13 @@ void StreamPlayerWindow::openAudio() {
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if (count < 0) { p.resync = true; count = 0; } |
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if ((unsigned)count < frames) { |
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stream_playback_audio_silence(p.sound, frames - (unsigned)count); |
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if (p.presenting && !p.ended) p.underruns++; |
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if (p.presenting && !p.ended) { |
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p.underruns++; p.audioGap.count++; p.audioGap.silentFrames += frames - (unsigned)count; |
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p.audioGap.requested = frames; p.audioGap.received = (unsigned)count; p.audioGap.held = p.holdAudio; |
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p.audioGap.reserve = p.ready - p.position; p.audioGap.videoQueue = p.videos.size(); |
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p.audioGap.feedAge = p.audioFedAt ? now - p.audioFedAt : -1; p.audioGap.audioPts = p.audioFedPts; |
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p.audioGap.workerAge = p.workerAt ? now - p.workerAt : -1; |
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} |
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} |
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float volume = p.volume.load(); |
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for (int i = 0; i < count * 2; i++) pcm[i] = static_cast<int16_t>(pcm[i] * volume); |
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@ -200,6 +214,8 @@ void StreamPlayerWindow::decode() {
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uint32_t revision = 0; |
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uint64_t decoded = 0, discarded = 0, reportedShown = 0; |
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int64_t deadline = nowUs() + 10000000, report = nowUs(), decoderProgress = -1, lastInputAt = -1; |
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uint64_t reportedGaps = 0; |
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int64_t gapReportAt = 0; |
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auto reset = [&](bool request) { |
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avcodec_free_context(&decoder); av_packet_unref(packet); waitKey = true; finishing = eosSent = false; |
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decoderProgress = lastInputAt = -1; |
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@ -210,6 +226,7 @@ void StreamPlayerWindow::decode() {
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p.decoderLead = 0; p.framePeriod = 33333; p.lastInputPts = p.lastDecodedPts = -1; |
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p.ended = p.videoEnded = false; |
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p.audioDacAt = 0; p.audioFrameStart = 0; p.holdAudio = p.resync = false; p.endFrames = UINT64_MAX; |
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p.audioFedAt = 0; p.audioFedPts = -1; |
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} |
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if (request && !gui_stream_resync(p.id)) DEBUG_WARN(DEBUG_CATEGORY_STREAM, "desktop playback resync refused"); |
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deadline = nowUs() + 10000000; emit statusChanged(text("Waiting for a key frame…")); |
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@ -226,7 +243,7 @@ void StreamPlayerWindow::decode() {
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if (!status.initialized) return; |
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if (!p.started) { |
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p.activeAudio = status.audio_enabled && p.audioAvailable; |
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if (p.activeAudio) p.sound = stream_playback_audio_create(status.start_us); |
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if (p.activeAudio) p.sound = stream_playback_audio_create(status.start_us, 40); |
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if (p.activeAudio && !p.sound) { p.running = false; return; } |
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p.position = status.start_us; p.clockAt = nowUs(); p.started = true; |
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stream_playback_clock_reset(&p.adaptation, p.id); |
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@ -283,7 +300,18 @@ void StreamPlayerWindow::decode() {
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else if (!gui_stream_open(p.id, p.group, p.source, p.epoch)) fail(text("Could not connect to the stream")); |
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else while (p.running) { |
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bool resync; |
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{ std::lock_guard<std::mutex> guard(p.lock); resync = p.resync; } |
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Playback::AudioGap gap; |
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{ std::lock_guard<std::mutex> guard(p.lock); resync = p.resync; p.workerAt = nowUs(); gap = p.audioGap; } |
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/* Callback сохраняет снимок; печать выполняется worker без блокировки аудиоустройства. */ |
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if (gap.count != reportedGaps && nowUs() - gapReportAt >= 1000000) { |
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DEBUG_WARN(DEBUG_CATEGORY_DEBUG, |
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"desktop audio gap id=%llu count=%llu delta=%llu silence_frames=%llu cause=%s got=%u/%u " |
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"reserve_us=%lld feed_age_us=%lld worker_age_us=%lld audio_pts=%lld videoQ=%zu", |
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(unsigned long long)p.id, (unsigned long long)gap.count, (unsigned long long)(gap.count - reportedGaps), |
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(unsigned long long)gap.silentFrames, gap.held ? "video_hold" : "pcm_short", gap.received, gap.requested, |
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(long long)gap.reserve, (long long)gap.feedAge, (long long)gap.workerAge, (long long)gap.audioPts, gap.videoQueue); |
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reportedGaps = gap.count; gapReportAt = nowUs(); |
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} |
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if (resync) reset(true); |
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observe(); |
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drainVideo(); |
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@ -359,10 +387,15 @@ void StreamPlayerWindow::decode() {
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observe(); |
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if (record.pts > INT64_MAX) { fail(text("Invalid stream timestamp")); break; } |
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if (record.kind == StreamRecordKind::Audio) { |
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int result = 0; |
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int result = 0, wanted = 0, stillWanted = 0; |
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{ std::lock_guard<std::mutex> guard(p.lock); |
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if (p.sound) wanted = stream_playback_audio_needs_input(p.sound); |
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if (p.sound) result = stream_playback_audio_feed(p.sound, (int64_t)record.pts, |
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reinterpret_cast<const uint8_t*>(record.data.constData()), (size_t)record.data.size()); } |
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reinterpret_cast<const uint8_t*>(record.data.constData()), (size_t)record.data.size()); |
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if (p.sound && result == 0) { p.audioFedAt = nowUs(); p.audioFedPts = (int64_t)record.pts; } |
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if (p.sound) stillWanted = stream_playback_audio_needs_input(p.sound); } |
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DEBUG_TRACE(DEBUG_CATEGORY_DEBUG, "desktop audio feed id=%llu pts=%llu result=%d needs_input=%d->%d", |
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(unsigned long long)p.id, (unsigned long long)record.pts, result, wanted, stillWanted); |
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if (result == -2) reset(true); |
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else if (result < 0) { fail(text("Stream audio decoder failed")); break; } |
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continue; |
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evgeny
2 days ago