diff --git a/audio.c b/audio.c
index 165483f..cd1f9cf 100644
--- a/audio.c
+++ b/audio.c
@@ -105,20 +105,20 @@ typedef struct _audio_module_
 {
     const char *Name;			///< audio output module name
 
-    void (*Thread) (void);		///< module thread handler
-    void (*Enqueue) (const void *, int);	///< enqueue samples for output
-    void (*VideoReady) (void);		///< video ready, start audio
-    void (*FlushBuffers) (void);	///< flush sample buffers
-    void (*Poller) (void);		///< output poller
-    int (*FreeBytes) (void);		///< number of bytes free in buffer
-    int (*UsedBytes) (void);		///< number of bytes used in buffer
-     uint64_t(*GetDelay) (void);	///< get current audio delay
-    void (*SetVolume) (int);		///< set output volume
-    int (*Setup) (int *, int *, int);	///< setup channels, samplerate
-    void (*Play) (void);		///< play
-    void (*Pause) (void);		///< pause
-    void (*Init) (void);		///< initialize audio output module
-    void (*Exit) (void);		///< cleanup audio output module
+    void (*const Thread) (void);	///< module thread handler
+    void (*const Enqueue) (const void *, int);	///< enqueue samples for output
+    void (*const VideoReady) (void);	///< video ready, start audio
+    void (*const FlushBuffers) (void);	///< flush sample buffers
+    void (*const Poller) (void);	///< output poller
+    int (*const FreeBytes) (void);	///< number of bytes free in buffer
+    int (*const UsedBytes) (void);	///< number of bytes used in buffer
+     int64_t(*const GetDelay) (void);	///< get current audio delay
+    void (*const SetVolume) (int);	///< set output volume
+    int (*const Setup) (int *, int *, int);	///< setup channels, samplerate
+    void (*const Play) (void);		///< play
+    void (*const Pause) (void);		///< pause
+    void (*const Init) (void);		///< initialize audio output module
+    void (*const Exit) (void);		///< cleanup audio output module
 } AudioModule;
 
 static const AudioModule NoopModule;	///< forward definition of noop module
@@ -912,17 +912,17 @@ static void AlsaInitMixer(void)
 **
 **	@todo FIXME: handle the case no audio running
 */
-static uint64_t AlsaGetDelay(void)
+static int64_t AlsaGetDelay(void)
 {
     int err;
     snd_pcm_sframes_t delay;
-    uint64_t pts;
+    int64_t pts;
 
     if (!AlsaPCMHandle || !AudioSampleRate) {
-	return 0UL;
+	return 0L;
     }
     if (!AudioRunning) {		// audio not running
-	return 0UL;
+	return 0L;
     }
     // FIXME: thread safe? __assert_fail_base in snd_pcm_delay
 
@@ -940,8 +940,8 @@ static uint64_t AlsaGetDelay(void)
 	delay = 0L;
     }
 
-    pts = ((uint64_t) delay * 90 * 1000) / AudioSampleRate;
-    pts += ((uint64_t) RingBufferUsedBytes(AlsaRingBuffer) * 90 * 1000)
+    pts = ((int64_t) delay * 90 * 1000) / AudioSampleRate;
+    pts += ((int64_t) RingBufferUsedBytes(AlsaRingBuffer) * 90 * 1000)
 	/ (AudioSampleRate * AudioChannels * AudioBytesProSample);
     Debug(4, "audio/alsa: hw+sw delay %zd %" PRId64 " ms\n",
 	RingBufferUsedBytes(AlsaRingBuffer), pts / 90);
@@ -1732,16 +1732,16 @@ static void OssInitMixer(void)
 **
 **	@returns audio delay in time stamps.
 */
-static uint64_t OssGetDelay(void)
+static int64_t OssGetDelay(void)
 {
     int delay;
-    uint64_t pts;
+    int64_t pts;
 
     if (OssPcmFildes == -1) {		// setup failure
-	return 0UL;
+	return 0L;
     }
     if (!AudioRunning) {		// audio not running
-	return 0UL;
+	return 0L;
     }
     // delay in bytes in kernel buffers
     delay = -1;
@@ -1754,7 +1754,7 @@ static uint64_t OssGetDelay(void)
 	delay = 0;
     }
 
-    pts = ((uint64_t) (delay + RingBufferUsedBytes(OssRingBuffer)) * 90 * 1000)
+    pts = ((int64_t) (delay + RingBufferUsedBytes(OssRingBuffer)) * 90 * 1000)
 	/ (AudioSampleRate * AudioChannels * AudioBytesProSample);
     Debug(4, "audio/oss: hw+sw delay %zd %" PRId64 " ms\n",
 	RingBufferUsedBytes(OssRingBuffer), pts / 90);
@@ -2003,9 +2003,9 @@ static int NoopUsedBytes(void)
 **
 **	@returns audio delay in time stamps.
 */
-static uint64_t NoopGetDelay(void)
+static int64_t NoopGetDelay(void)
 {
-    return 0UL;
+    return 0L;
 }
 
 /**
@@ -2080,9 +2080,8 @@ static void *AudioPlayHandlerThread(void *dummy)
 	    // cond_wait can return, without signal!
 	} while (!AudioRunning);
 
-	Debug(3, "audio: ----> %d ms\n", (AudioUsedBytes() * 1000)
-	    / (!AudioSampleRate
-		|| !AudioChannels +
+	Debug(3, "audio: ----> %d ms start\n", (AudioUsedBytes() * 1000)
+	    / (!AudioSampleRate + !AudioChannels +
 		AudioSampleRate * AudioChannels * AudioBytesProSample));
 
 	pthread_mutex_unlock(&AudioMutex);
@@ -2118,7 +2117,6 @@ static void *AudioPlayHandlerThread(void *dummy)
 	}
 #endif
 
-	Debug(3, "audio: play start\n");
 	AudioUsedModule->Thread();
     }
 
@@ -2192,7 +2190,7 @@ void AudioEnqueue(const void *samples, int count)
 	static uint32_t last;
 	static uint32_t tick;
 	static uint32_t max = 101;
-	uint64_t delay;
+	int64_t delay;
 
 	delay = AudioGetDelay();
 	tick = GetMsTicks();
@@ -2208,7 +2206,7 @@ void AudioEnqueue(const void *samples, int count)
     // Update audio clock (stupid gcc developers thinks INT64_C is unsigned)
     if (AudioPTS != (int64_t) INT64_C(0x8000000000000000)) {
 	AudioPTS +=
-	    ((int64_t) count * 90000) / (AudioSampleRate * AudioChannels *
+	    ((int64_t) count * 90 * 1000) / (AudioSampleRate * AudioChannels *
 	    AudioBytesProSample);
     }
 }
@@ -2259,7 +2257,7 @@ int AudioUsedBytes(void)
 **
 **	@returns audio delay in time stamps.
 */
-uint64_t AudioGetDelay(void)
+int64_t AudioGetDelay(void)
 {
     return AudioUsedModule->GetDelay();
 }
@@ -2275,7 +2273,6 @@ void AudioSetClock(int64_t pts)
     if (AudioPTS != pts) {
 	Debug(4, "audio: set clock to %#012" PRIx64 " %#012" PRIx64 " pts\n",
 	    AudioPTS, pts);
-
     }
 #endif
     AudioPTS = pts;
diff --git a/audio.h b/audio.h
index 94ac55a..2393b6f 100644
--- a/audio.h
+++ b/audio.h
@@ -32,7 +32,7 @@ extern void AudioFlushBuffers(void);	///< flush audio buffers
 extern void AudioPoller(void);		///< poll audio events/handling
 extern int AudioFreeBytes(void);	///< free bytes in audio output
 extern int AudioUsedBytes(void);	///< used bytes in audio output
-extern uint64_t AudioGetDelay(void);	///< get current audio delay
+extern int64_t AudioGetDelay(void);	///< get current audio delay
 extern void AudioSetClock(int64_t);	///< set audio clock base
 extern int64_t AudioGetClock();		///< get current audio clock
 extern void AudioSetVolume(int);	///< set volume
diff --git a/video.c b/video.c
index a7ffe87..a0afa58 100644
--- a/video.c
+++ b/video.c
@@ -543,9 +543,9 @@ static void VideoUpdateOutput(AVRational input_aspect_ratio, int input_width,
 ///
 ///	Reduce output.
 ///
-static void VideoMessage(void)
-{
-}
+//static void VideoMessage(const char *message)
+//{
+//}
 
 //----------------------------------------------------------------------------
 //	GLX
@@ -1723,6 +1723,8 @@ static VaapiDecoder *VaapiNewHwDecoder(void)
     decoder->OutputWidth = VideoWindowWidth;
     decoder->OutputHeight = VideoWindowHeight;
 
+    decoder->PTS = AV_NOPTS_VALUE;
+
     // get/put still not working
     //decoder->GetPutImage = !VaapiBuggyIntel || VaapiNewIntel;
     decoder->GetPutImage = !VaapiBuggyIntel;
@@ -4345,10 +4347,12 @@ static void VaapiDisplayFrame(void)
 ///
 static void VaapiSyncDisplayFrame(VaapiDecoder * decoder)
 {
+    int err;
     int filled;
     int64_t audio_clock;
     int64_t video_clock;
 
+    err = 0;
     if (Video60HzMode && !(decoder->FramesDisplayed % 6)) {
 	// FIXME: drop next frame?
 	decoder->DupNextFrame++;
@@ -4372,6 +4376,7 @@ static void VaapiSyncDisplayFrame(VaapiDecoder * decoder)
 	    || video_clock > audio_clock + VideoAudioDelay + 120 * 90)) {
 	Debug(3, "video: initial slow down %d\n", decoder->StartCounter);
 	decoder->DupNextFrame = 2;
+	err = 1;
     }
 
     if (decoder->DupNextFrame) {
@@ -4383,22 +4388,25 @@ static void VaapiSyncDisplayFrame(VaapiDecoder * decoder)
 
 	if (abs(video_clock - audio_clock) > 5000 * 90) {
 	    Debug(3, "video: pts difference too big\n");
+	    err = 1;
 	} else if (video_clock > audio_clock + VideoAudioDelay + 100 * 90) {
 	    Debug(3, "video: slow down video\n");
+	    err = 1;
 	    decoder->DupNextFrame += 2;
 	} else if (video_clock > audio_clock + VideoAudioDelay + 45 * 90) {
 	    Debug(3, "video: slow down video\n");
+	    err = 1;
 	    decoder->DupNextFrame++;
 	} else if (audio_clock + VideoAudioDelay > video_clock + 15 * 90
 	    && filled > 1) {
 	    Debug(3, "video: speed up video\n");
+	    err = 1;
 	    decoder->DropNextFrame = 1;
 	}
     }
 #if defined(DEBUG) || defined(AV_INFO)
     // debug audio/video sync
-    if (decoder->DupNextFrame || decoder->DropNextFrame
-	|| !(decoder->FramesDisplayed % AV_INFO_TIME)) {
+    if (err || !(decoder->FramesDisplayed % AV_INFO_TIME)) {
 	Info("video: %s%+5" PRId64 " %4" PRId64 " %3d/\\ms %3d v-buf\n",
 	    Timestamp2String(video_clock),
 	    abs((video_clock - audio_clock) / 90) <
@@ -7411,10 +7419,12 @@ static void VdpauDisplayFrame(void)
 ///
 static void VdpauSyncDisplayFrame(VdpauDecoder * decoder)
 {
+    int err;
     int filled;
     int64_t audio_clock;
     int64_t video_clock;
 
+    err = 0;
     if (Video60HzMode && !(decoder->FramesDisplayed % 6)) {
 	// FIXME: drop next frame?
 	decoder->DupNextFrame++;
@@ -7437,6 +7447,7 @@ static void VdpauSyncDisplayFrame(VdpauDecoder * decoder)
 	&& (audio_clock == (int64_t) AV_NOPTS_VALUE
 	    || video_clock > audio_clock + VideoAudioDelay + 120 * 90)) {
 	Debug(3, "video: initial slow down %d\n", decoder->StartCounter);
+	err = 1;
 	decoder->DupNextFrame = 2;
     }
 
@@ -7449,22 +7460,25 @@ static void VdpauSyncDisplayFrame(VdpauDecoder * decoder)
 
 	if (abs(video_clock - audio_clock) > 5000 * 90) {
 	    Debug(3, "video: pts difference too big\n");
+	    err = 1;
 	} else if (video_clock > audio_clock + VideoAudioDelay + 100 * 90) {
 	    Debug(3, "video: slow down video\n");
+	    err = 1;
 	    decoder->DupNextFrame += 2;
 	} else if (video_clock > audio_clock + VideoAudioDelay + 45 * 90) {
 	    Debug(3, "video: slow down video\n");
+	    err = 1;
 	    decoder->DupNextFrame++;
 	} else if (audio_clock + VideoAudioDelay > video_clock + 15 * 90
 	    && filled > 1 + 2 * decoder->Interlaced) {
 	    Debug(3, "video: speed up video\n");
+	    err = 1;
 	    decoder->DropNextFrame = 1;
 	}
     }
 #if defined(DEBUG) || defined(AV_INFO)
     // debug audio/video sync
-    if (decoder->DupNextFrame || decoder->DropNextFrame
-	|| !(decoder->FramesDisplayed % AV_INFO_TIME)) {
+    if (err || !(decoder->FramesDisplayed % AV_INFO_TIME)) {
 	Info("video: %s%+5" PRId64 " %4" PRId64 " %3d/\\ms %3d v-buf\n",
 	    Timestamp2String(video_clock),
 	    abs((video_clock - audio_clock) / 90) <
@@ -7486,7 +7500,8 @@ static void VdpauSyncRenderFrame(VdpauDecoder * decoder,
 {
     // FIXME: temp debug
     if (0 && frame->pkt_pts != (int64_t) AV_NOPTS_VALUE) {
-	Info("render frame pts %s\n", Timestamp2String(frame->pkt_pts));
+	Debug(3, "video: render frame pts %s\n",
+	    Timestamp2String(frame->pkt_pts));
     }
 
     VideoSetPts(&decoder->PTS, decoder->Interlaced, frame);
@@ -9699,9 +9714,9 @@ void VideoExit(void)
 int SysLogLevel;			///< show additional debug informations
 uint32_t VideoSwitch;			///< required
 
-uint64_t AudioGetDelay(void)		///< required
+int64_t AudioGetDelay(void)		///< required
 {
-    return 0UL;
+    return 0L;
 }
 
 int64_t AudioGetClock(void)		///< required