Improved replay of recordings.

Todo

@@ -83,8 +83,8 @@ HDMI/SPDIF Passthrough:
     Channels are wrong setup, if changing setting during operation.
 
 playback of recording
-    play back is too fast
     pause is not reset, when replay exit
+    replay/pause need 100% cpu
 
 setup:
     Setup of decoder type.

audio.c

@@ -342,6 +342,11 @@ static int AlsaPlayRingbuffer(void)
 		if (err == -EAGAIN) {
 		    goto again;
 		}
+		/*
+		   if (err == -EBADFD) {
+		   goto again;
+		   }
+		 */
 		Error(_("audio/alsa: underrun error?\n"));
 		err = snd_pcm_recover(AlsaPCMHandle, err, 0);
 		if (err >= 0) {
@@ -370,9 +375,13 @@ static void AlsaFlushBuffers(void)
     int err;
 
     RingBufferReadAdvance(AlsaRingBuffer, RingBufferUsedBytes(AlsaRingBuffer));
-    if ((err = snd_pcm_drop(AlsaPCMHandle))) {
+    if ((err = snd_pcm_drop(AlsaPCMHandle)) < 0) {
 	Error(_("audio: snd_pcm_drop(): %s\n"), snd_strerror(err));
     }
+    if ((err = snd_pcm_prepare(AlsaPCMHandle)) < 0) {
+	Error(_("audio: snd_pcm_prepare(): %s\n"), snd_strerror(err));
+    }
+    AudioPTS = INT64_C(0x8000000000000000);
 }
 
 #if 0
@@ -567,8 +576,20 @@ static void AlsaThread(void)
     for (;;) {
 	int err;
 
-	Debug(4, "audio: play loop\n");
 	pthread_testcancel();
+	if (AlsaFlushBuffer) {
+	    // we can flush too many, but wo cares
+	    Debug(3, "audio/alsa: flushing buffers\n");
+	    AlsaFlushBuffers();
+	    /*
+	       if ((err = snd_pcm_prepare(AlsaPCMHandle))) {
+	       Error(_("audio: snd_pcm_prepare(): %s\n"), snd_strerror(err));
+	       }
+	     */
+	    AlsaFlushBuffer = 0;
+	    break;
+	}
+	// wait for space in kernel buffers
 	if ((err = snd_pcm_wait(AlsaPCMHandle, 100)) < 0) {
 	    Error(_("audio/alsa: wait underrun error?\n"));
 	    err = snd_pcm_recover(AlsaPCMHandle, err, 0);
@@ -580,14 +601,7 @@ static void AlsaThread(void)
 	    continue;
 	}
 	if (AlsaFlushBuffer) {
-	    // we can flush too many, but wo cares
+	    continue;
-	    Debug(3, "audio/alsa: flushing buffers\n");
-	    AlsaFlushBuffers();
-	    if ((err = snd_pcm_prepare(AlsaPCMHandle))) {
-		Error(_("audio: snd_pcm_prepare(): %s\n"), snd_strerror(err));
-	    }
-	    AlsaFlushBuffer = 0;
-	    break;
 	}
 	if ((err = AlsaPlayRingbuffer())) {	// empty / error
 	    snd_pcm_state_t state;
@@ -600,7 +614,8 @@ static void AlsaThread(void)
 		Debug(3, "audio/alsa: stopping play\n");
 		break;
 	    }
-	    usleep(20 * 1000);
+	    pthread_yield();
+	    usleep(20 * 1000);		// let fill the buffers
 	}
     }
 }
@@ -1195,6 +1210,21 @@ static int OssPlayRingbuffer(void)
     return 0;
 }
 
+/**
+**	Flush oss buffers.
+*/
+static void OssFlushBuffers(void)
+{
+    RingBufferReadAdvance(OssRingBuffer, RingBufferUsedBytes(OssRingBuffer));
+    // flush kernel buffers
+    if (ioctl(OssPcmFildes, SNDCTL_DSP_HALT_OUTPUT, NULL) < 0) {
+	Error(_("audio/oss: ioctl(SNDCTL_DSP_HALT_OUTPUT): %s\n"),
+	    strerror(errno));
+	return;
+    }
+    AudioPTS = INT64_C(0x8000000000000000);
+}
+
 //----------------------------------------------------------------------------
 //	OSS pcm polled
 //----------------------------------------------------------------------------
@@ -1410,14 +1440,7 @@ static int OssSetup(int *freq, int *channels)
     // flush any buffered data
     {
 	AudioRunning = 0;
-	RingBufferReadAdvance(OssRingBuffer,
+	OssFlushBuffers();
-	    RingBufferUsedBytes(OssRingBuffer));
-	// flush kernel buffers
-	if (ioctl(OssPcmFildes, SNDCTL_DSP_HALT_OUTPUT, NULL) == -1) {
-	    Error(_("audio/oss: ioctl(SNDCTL_DSP_HALT_OUTPUT): %s\n"),
-		strerror(errno));
-	    return -1;
-	}
     }
     AudioPTS = INT64_C(0x8000000000000000);
 
@@ -1672,6 +1695,30 @@ void AudioEnqueue(const void *samples, int count)
     (void)count;
 }
 
+/**
+**	Flush audio buffers.
+*/
+void AudioFlushBuffers(void)
+{
+#ifdef USE_ALSA
+#ifdef USE_AUDIO_THREAD
+    if (AudioRunning) {
+	while (AudioRunning) {
+	    AlsaFlushBuffer = 1;
+	    usleep(1 * 1000);
+	}
+	AlsaFlushBuffer = 0;
+    } else
+#endif
+    {
+	AlsaFlushBuffers();
+    }
+#endif
+#ifdef USE_OSS
+    OssFlushBuffers();
+#endif
+}
+
 /**
 **	Call back to play audio polled.
 */
@@ -1687,6 +1734,20 @@ void AudioPoller(void)
 #endif
 }
 
+/**
+**	Get free bytes in audio output.
+*/
+int AudioFreeBytes(void)
+{
+#ifdef USE_ALSA
+    return RingBufferFreeBytes(AlsaRingBuffer);
+#endif
+#ifdef USE_OSS
+    return RingBufferFreeBytes(OssRingBuffer);
+#endif
+    return -1;
+}
+
 /**
 **	Set audio clock base.
 **

audio.h

@@ -1,7 +1,7 @@
 ///
 ///	@file audio.h		@brief Audio module headerfile
 ///
-///	Copyright (c) 2009 - 2011 by Johns.  All Rights Reserved.
+///	Copyright (c) 2009 - 2012 by Johns.  All Rights Reserved.
 ///
 ///	Contributor(s):
 ///
@@ -28,12 +28,14 @@
 //----------------------------------------------------------------------------
 
 extern void AudioEnqueue(const void *, int);	///< buffer audio samples
+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 AudioFreeBytes(void);	///< free bytes in audio output
 //extern int AudioUsedBytes(void);	///< used bytes in audio output
 extern void AudioSetClock(int64_t);	///< set audio clock base
 extern int64_t AudioGetClock();		///< get current audio clock
-
 extern uint64_t AudioGetDelay(void);	///< get current audio delay
 
 extern int AudioSetup(int *, int *);	///< setup audio output

codec.c

@@ -561,6 +561,16 @@ void CodecVideoDecode(VideoDecoder * decoder, const AVPacket * avpkt)
     }
 }
 
+/**
+**	Flush the video decoder.
+**
+**	@param decoder	video decoder data
+*/
+void CodecVideoFlushBuffers(VideoDecoder * decoder)
+{
+    avcodec_flush_buffers(decoder->VideoCtx);
+}
+
 //----------------------------------------------------------------------------
 //	Audio
 //----------------------------------------------------------------------------
@@ -738,9 +748,11 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
     spkt->pts = avpkt->pts;
     spkt->dts = avpkt->dts;
 #endif
+#ifdef DEBUG
     if (!audio_decoder->AudioParser) {
 	Fatal(_("codec: internal error parser freeded while running\n"));
     }
+#endif
 
     audio_ctx = audio_decoder->AudioCtx;
     index = 0;
@@ -1026,6 +1038,17 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
 
 #endif
 
+/**
+**	Flush the audio decoder.
+**
+**	@param decoder	audio decoder data
+*/
+void CodecAudioFlushBuffers(AudioDecoder * decoder)
+{
+    // FIXME: reset audio parser
+    avcodec_flush_buffers(decoder->AudioCtx);
+}
+
 //----------------------------------------------------------------------------
 //	Codec
 //----------------------------------------------------------------------------

codec.h

@@ -1,7 +1,7 @@
 ///
 ///	@file codec.h	@brief Codec module headerfile
 ///
-///	Copyright (c) 2009 - 2011 by Johns.  All Rights Reserved.
+///	Copyright (c) 2009 - 2012 by Johns.  All Rights Reserved.
 ///
 ///	Contributor(s):
 ///
@@ -40,26 +40,32 @@ typedef struct _audio_decoder_ AudioDecoder;
     /// Allocate a new video decoder context.
 extern VideoDecoder *CodecVideoNewDecoder(VideoHwDecoder *);
 
-    /// Open video codec
+    /// Open video codec.
 extern void CodecVideoOpen(VideoDecoder *, const char *, int);
 
-    /// Close video codec
+    /// Close video codec.
 extern void CodecVideoClose(VideoDecoder *);
 
-    /// Decode a video packet
+    /// Decode a video packet.
-extern void CodecVideoDecode(VideoDecoder *, const AVPacket * pkt);
+extern void CodecVideoDecode(VideoDecoder *, const AVPacket *);
+
+    /// Flush video buffers.
+extern void CodecVideoFlushBuffers(VideoDecoder *);
 
     /// Allocate a new audio decoder context.
 extern AudioDecoder *CodecAudioNewDecoder(void);
 
-    /// Open audio codec
+    /// Open audio codec.
 extern void CodecAudioOpen(AudioDecoder *, const char *, int);
 
-    /// Close audio codec
+    /// Close audio codec.
 extern void CodecAudioClose(AudioDecoder *);
 
-    /// Decode an audio packet
+    /// Decode an audio packet.
-extern void CodecAudioDecode(AudioDecoder *, const AVPacket * pkt);
+extern void CodecAudioDecode(AudioDecoder *, const AVPacket *);
+
+    /// Flush audio buffers.
+extern void CodecAudioFlushBuffers(AudioDecoder *);
 
     /// Setup and initialize codec module.
 extern void CodecInit(void);

softhddev.c

@@ -59,6 +59,7 @@ static const char DeviceStopped = 1;	///< flag device stopped
 //////////////////////////////////////////////////////////////////////////////
 
 static volatile char NewAudioStream;	///< new audio stream
+static volatile char SkipAudio;		///< skip audio stream
 static AudioDecoder *MyAudioDecoder;	///< audio decoder
 static enum CodecID AudioCodecID;	///< current codec id
 
@@ -185,10 +186,11 @@ static int FindAudioSync(const AVPacket * avpkt)
 **	@param size	size of PES packet
 **	@param id	PES packet type
 */
-void PlayAudio(const uint8_t * data, int size,
+int PlayAudio(const uint8_t * data, int size,
     __attribute__ ((unused)) uint8_t id)
 {
     int n;
+    int osize;
     AVPacket avpkt[1];
 
     // channel switch: SetAudioChannelDevice: SetDigitalAudioDevice:
@@ -199,12 +201,19 @@ void PlayAudio(const uint8_t * data, int size,
 	AudioCodecID = CODEC_ID_NONE;
 	NewAudioStream = 0;
     }
+    if (SkipAudio) {
+	return size;
+    }
     // PES header 0x00 0x00 0x01 ID
     // ID 0xBD 0xC0-0xCF
 
     if (size < 9) {
 	Error(_("[softhddev] invalid audio packet\n"));
-	return;
+	return size;
+    }
+    // Don't overrun audio buffers on replay
+    if (AudioFreeBytes() < 3072 * 8 * 8) {	// 8 channels 8 packets
+	return 0;
     }
 
     n = data[8];			// header size
@@ -225,11 +234,12 @@ void PlayAudio(const uint8_t * data, int size,
 	}
     }
 
+    osize = size;
     data += 9 + n;
     size -= 9 + n;			// skip pes header
     if (size <= 0) {
 	Error(_("[softhddev] invalid audio packet\n"));
-	return;
+	return osize;
     }
     // Detect audio code
     // MPEG-PS mp2 MPEG1, MPEG2, AC3
@@ -271,7 +281,7 @@ void PlayAudio(const uint8_t * data, int size,
 	    avpkt->size = size;
 	    n = FindAudioSync(avpkt);
 	    if (n < 0) {
-		return;
+		return osize;
 	    }
 	    if (!MyAudioDecoder) {
 		MyAudioDecoder = CodecAudioNewDecoder();
@@ -286,13 +296,15 @@ void PlayAudio(const uint8_t * data, int size,
 
     // no decoder or codec known
     if (!MyAudioDecoder || AudioCodecID == CODEC_ID_NONE) {
-	return;
+	return osize;
     }
 
     avpkt->data = (void *)data;
     avpkt->size = size;
     //memset(avpkt->data + avpkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
     CodecAudioDecode(MyAudioDecoder, avpkt);
+
+    return osize;
 }
 
 /**
@@ -300,6 +312,7 @@ void PlayAudio(const uint8_t * data, int size,
 */
 void Mute(void)
 {
+    SkipAudio = 1;
     AudioSetVolume(0);
 }
 
@@ -480,6 +493,10 @@ int VideoDecode(void)
     }
     if (VideoClearBuffers) {
 	atomic_set(&VideoPacketsFilled, 0);
+	VideoPacketRead = VideoPacketWrite;
+	if (MyVideoDecoder) {
+	    CodecVideoFlushBuffers(MyVideoDecoder);
+	}
 	VideoClearBuffers = 0;
 	return 1;
     }
@@ -751,8 +768,12 @@ void SetPlayMode(void)
 	}
     }
     if (MyAudioDecoder) {
-	NewAudioStream = 1;
+	if (AudioCodecID != CODEC_ID_NONE) {
+	    NewAudioStream = 1;
+	}
     }
+    VideoFreezed = 0;
+    SkipAudio = 0;
 }
 
 /**
@@ -760,9 +781,16 @@ void SetPlayMode(void)
 */
 void Clear(void)
 {
+    int i;
+
+    VideoNextPacket(VideoCodecID);	// terminate work
     VideoClearBuffers = 1;
     // FIXME: avcodec_flush_buffers
-    // FIXME: flush audio buffers
+    AudioFlushBuffers();
+
+    for (i = 0; VideoClearBuffers && i < 20; ++i) {
+	usleep(1 * 1000);
+    }
 }
 
 /**
@@ -771,6 +799,7 @@ void Clear(void)
 void Play(void)
 {
     VideoFreezed = 0;
+    SkipAudio = 0;
     // FIXME: restart audio
 }
 
@@ -781,16 +810,33 @@ void Freeze(void)
 {
     VideoFreezed = 1;
     // FIXME: freeze audio
+    AudioFlushBuffers();
+}
+
+/**
+**	Display the given I-frame as a still picture.
+*/
+void StillPicture(const uint8_t * data, int size)
+{
+    // must be a PES start code
+    if (size < 9 || !data || data[0] || data[1] || data[2] != 0x01) {
+	Error(_("[softhddev] invalid PES video packet\n"));
+	return;
+    }
+    PlayVideo(data, size);
+    PlayVideo(data, size);
+    VideoNextPacket(VideoCodecID);	// terminate work
 }
 
 /**
 **	Poll if device is ready.  Called by replay.
+**
+**	@param timeout	timeout to become ready in ms
 */
 int Poll(int timeout)
 {
     // buffers are too full
     if (atomic_read(&VideoPacketsFilled) >= VIDEO_PACKET_MAX / 2) {
-	Debug(3, "replay: poll %d\n", timeout);
 	if (timeout) {
 	    // let display thread work
 	    usleep(timeout * 1000);
@@ -800,6 +846,22 @@ int Poll(int timeout)
     return 0;
 }
 
+/**
+**	Flush the device output buffers.
+**
+**	@param timeout	timeout to flush in ms
+*/
+int Flush(int timeout)
+{
+    if (atomic_read(&VideoPacketsFilled)) {
+	if (timeout) {			// let display thread work
+	    usleep(timeout * 1000);
+	}
+	return !atomic_read(&VideoPacketsFilled);
+    }
+    return 1;
+}
+
 //////////////////////////////////////////////////////////////////////////////
 //	OSD
 //////////////////////////////////////////////////////////////////////////////

softhddev.h

@@ -1,7 +1,7 @@
 ///
 ///	@file softhddev.h	@brief software HD device plugin header file.
 ///
-///	Copyright (c) 2011 by Johns.  All Rights Reserved.
+///	Copyright (c) 2011 - 2012 by Johns.  All Rights Reserved.
 ///
 ///	Contributor(s):
 ///
@@ -36,7 +36,7 @@ extern "C"
     extern void OsdDrawARGB(int, int, int, int, const uint8_t *);
 
     /// C plugin play audio packet
-    extern void PlayAudio(const uint8_t *, int, uint8_t);
+    extern int PlayAudio(const uint8_t *, int, uint8_t);
     /// C plugin mute audio
     extern void Mute(void);
     /// C plugin set audio volume
@@ -55,8 +55,12 @@ extern "C"
     extern void Play(void);
     /// C plugin sets the device into "freeze frame" mode
     extern void Freeze(void);
+    /// C plugin display I-frame as a still picture.
+    extern void StillPicture(const uint8_t *, int);
     /// C plugin poll if ready
     extern int Poll(int);
+    /// C plugin flush output buffers
+    extern int Flush(int);
 
     /// C plugin command line help
     extern const char *CommandLineHelp(void);

softhddevice.cpp

@@ -499,9 +499,14 @@ int64_t cSoftHdDevice::GetSTC(void)
     return::VideoGetClock();
 }
 
-void cSoftHdDevice::TrickSpeed(int Speed)
+/**
+**	Set trick play speed.
+**
+**	@param speed	trick speed
+*/
+void cSoftHdDevice::TrickSpeed(int speed)
 {
-    dsyslog("[softhddev]%s: %d\n", __FUNCTION__, Speed);
+    dsyslog("[softhddev]%s: %d\n", __FUNCTION__, speed);
 }
 
 void cSoftHdDevice::Clear(void)
@@ -533,24 +538,37 @@ void cSoftHdDevice::Mute(void)
     dsyslog("[softhddev]%s:\n", __FUNCTION__);
 
     cDevice::Mute();
-
     ::Mute();
 }
 
 void cSoftHdDevice::SetVolumeDevice(int volume)
 {
-    //dsyslog("[softhddev]%s: %d\n", __FUNCTION__, volume);
+    dsyslog("[softhddev]%s: %d\n", __FUNCTION__, volume);
 
     ::SetVolumeDevice(volume);
 }
 
-void cSoftHdDevice::StillPicture(
+/**
-    __attribute__ ((unused)) const uchar * data, __attribute__ ((unused))
+**	Display the given I-frame as a still picture.
-    int length)
+*/
+void cSoftHdDevice::StillPicture(const uchar * data, int length)
 {
     dsyslog("[softhddev]%s:\n", __FUNCTION__);
+
+    if ( data[0] == 0x47 ) {		// ts sync
+	cDevice::StillPicture(data, length);
+	return;
+    }
+
+    ::StillPicture(data, length);
 }
 
+/**
+**	Check if the device is ready for further action.
+**
+**	@param poller		file handles (unused)
+**	@param timeout_ms	timeout in ms to become ready
+*/
 bool cSoftHdDevice::Poll(
     __attribute__ ((unused)) cPoller & poller, int timeout_ms)
 {
@@ -559,11 +577,16 @@ bool cSoftHdDevice::Poll(
     return::Poll(timeout_ms);
 }
 
+/**
+**	Flush the device output buffers.
+**
+**	@param timeout_ms	timeout in ms to become ready
+*/
 bool cSoftHdDevice::Flush(int timeout_ms)
 {
     dsyslog("[softhddev]%s: %d ms\n", __FUNCTION__, timeout_ms);
 
-    return true;
+    return::Flush(timeout_ms);
 }
 
 // ----------------------------------------------------------------------------
@@ -580,13 +603,14 @@ void cSoftHdDevice::GetOsdSize(int &width, int &height, double &pixel_aspect)
 
 // ----------------------------------------------------------------------------
 
+/**
+**	Play a audio packet.
+*/
 int cSoftHdDevice::PlayAudio(const uchar * data, int length, uchar id)
 {
     //dsyslog("[softhddev]%s: %p %p %d %d\n", __FUNCTION__, this, data, length, id);
 
-    ::PlayAudio(data, length, id);
+    return::PlayAudio(data, length, id);
-
-    return length;
 }
 
 void cSoftHdDevice::SetAudioTrackDevice(

video.c

@@ -6245,6 +6245,7 @@ enum PixelFormat Video_get_format(VideoHwDecoder * decoder,
 static void VideoSetPts(int64_t * pts_p, int interlaced, const AVFrame * frame)
 {
     int64_t pts;
+    int64_t delta;
 
     // update video clock
     if ((uint64_t) * pts_p != AV_NOPTS_VALUE) {
@@ -6259,14 +6260,16 @@ static void VideoSetPts(int64_t * pts_p, int interlaced, const AVFrame * frame)
     if (!pts) {
 	pts = AV_NOPTS_VALUE;
     }
-    // build a monotonic pts
-    if ((uint64_t) * pts_p != AV_NOPTS_VALUE) {
-	if (pts - *pts_p < -10 * 90) {
-	    pts = AV_NOPTS_VALUE;
-	}
-    }
     // libav: sets only pkt_dts which can be 0
     if ((uint64_t) pts != AV_NOPTS_VALUE) {
+	// build a monotonic pts
+	if ((uint64_t) * pts_p != AV_NOPTS_VALUE) {
+	    delta = pts - *pts_p;
+	    // ignore negative jumps
+	    if (delta > -300 * 90 && delta < -15 * 90) {
+		return;
+	    }
+	}
 	if (*pts_p != pts) {
 	    Debug(3,
 		"video: %#012" PRIx64 "->%#012" PRIx64 " %4" PRId64 " pts\n",