Adds trick speed support.

4 files changed, 72 insertions, 20 deletions

diff --git a/ChangeLog b/ChangeLog
index 60e93fd..38e12cc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,9 @@
 User johns
+Date:
+
+    Adds trick speed support.
+
+User johns
 Date: Thu Feb 16 09:59:14 CET 2012
 
     Release Version 0.4.8
diff --git a/softhddev.c b/softhddev.c
index 7ec3bd4..85a9b1a 100644
--- a/softhddev.c
+++ b/softhddev.c
@@ -471,16 +471,6 @@ int PlayAudio(const uint8_t * data, int size, uint8_t id)
 }
 
 /**
-**	Turns off audio while replaying.
-*/
-void Mute(void)
-{
-    SkipAudio = 1;
-    AudioFlushBuffers();
-    //AudioSetVolume(0);
-}
-
-/**
 **	Set volume of audio device.
 **
 **	@param volume	VDR volume (0 .. 255)
@@ -513,8 +503,11 @@ static AVPacket VideoPacketRb[VIDEO_PACKET_MAX];
 static int VideoPacketWrite;		///< write pointer
 static int VideoPacketRead;		///< read pointer
 atomic_t VideoPacketsFilled;		///< how many of the buffer is used
+
 static volatile char VideoClearBuffers;	///< clear video buffers
 static volatile char SkipVideo;		///< skip video
+static volatile char VideoTrickSpeed;	///< current trick speed
+static volatile char VideoTrickCounter;	///< current trick speed counter
 
 #ifdef DEBUG
 static int VideoMaxPacketSize;		///< biggest used packet buffer
@@ -722,6 +715,13 @@ int VideoDecode(void)
 	VideoClearBuffers = 0;
 	return 1;
     }
+    if (VideoTrickSpeed) {
+	if (VideoTrickCounter++ < VideoTrickSpeed * 2) {
+	    usleep(5 * 1000);
+	    return 1;
+	}
+	VideoTrickCounter = 0;
+    }
 
     filled = atomic_read(&VideoPacketsFilled);
     if (!filled) {
@@ -1225,6 +1225,21 @@ void SetPlayMode(void)
 	    NewAudioStream = 1;
 	}
     }
+    Play();
+}
+
+/**
+**	Set trick play speed.
+**
+**	Every single frame shall then be displayed the given number of
+**	times.
+**
+**	@param speed	trick speed
+*/
+void TrickSpeed(int speed)
+{
+    VideoTrickSpeed = speed;
+    VideoTrickCounter = 0;
     StreamFreezed = 0;
 }
 
@@ -1251,6 +1266,8 @@ void Clear(void)
 */
 void Play(void)
 {
+    VideoTrickSpeed = 0;
+    VideoTrickCounter = 0;
     StreamFreezed = 0;
     SkipAudio = 0;
     AudioPlay();
@@ -1266,6 +1283,16 @@ void Freeze(void)
 }
 
 /**
+**	Turns off audio while replaying.
+*/
+void Mute(void)
+{
+    SkipAudio = 1;
+    AudioFlushBuffers();
+    //AudioSetVolume(0);
+}
+
+/**
 **	Display the given I-frame as a still picture.
 **
 **	@param data	pes frame data
diff --git a/softhddev.h b/softhddev.h
index feb4a26..631cd56 100644
--- a/softhddev.h
+++ b/softhddev.h
@@ -37,8 +37,6 @@ extern "C"
 
     /// C plugin play audio packet
     extern int PlayAudio(const uint8_t *, int, uint8_t);
-    /// C plugin mute audio
-    extern void Mute(void);
     /// C plugin set audio volume
     extern void SetVolumeDevice(int);
 
@@ -51,12 +49,16 @@ extern "C"
 
     /// C plugin set play mode
     extern void SetPlayMode(void);
+    /// C plugin set trick speed
+    extern void TrickSpeed(int);
     /// C plugin clears all video and audio data from the device
     extern void Clear(void);
     /// C plugin sets the device into play mode
     extern void Play(void);
     /// C plugin sets the device into "freeze frame" mode
     extern void Freeze(void);
+    /// C plugin mute audio
+    extern void Mute(void);
     /// C plugin display I-frame as a still picture.
     extern void StillPicture(const uint8_t *, int);
     /// C plugin poll if ready
diff --git a/softhddevice.cpp b/softhddevice.cpp
index 35d32ed..6002d6e 100644
--- a/softhddevice.cpp
+++ b/softhddevice.cpp
@@ -42,7 +42,7 @@ extern "C"
 
 //////////////////////////////////////////////////////////////////////////////
 
-static const char *const VERSION = "0.4.8";
+static const char *const VERSION = "0.4.9";
 static const char *const DESCRIPTION =
 trNOOP("A software and GPU emulated HD device");
 
@@ -144,12 +144,15 @@ extern "C" void FeedKeyPress(const char *keymap, const char *key, int repeat,
 //	OSD
 //////////////////////////////////////////////////////////////////////////////
 
+/**
+**	Soft device plugin OSD class.
+*/
 class cSoftOsd:public cOsd
 {
-    int Level;				///< level: subtitle
+    //int Level;				///< level: subtitle
 
   public:
-     cSoftOsd(int, int, uint);
+    cSoftOsd(int, int, uint);
      virtual ~ cSoftOsd(void);
     virtual void Flush(void);
     virtual void SetActive(bool);
@@ -167,7 +170,7 @@ static volatile char OsdDirty;		///< flag force redraw everything
 */
 void cSoftOsd::SetActive(bool on)
 {
-    dsyslog("[softhddev]%s: %d\n", __FUNCTION__, on);
+    //dsyslog("[softhddev]%s: %d\n", __FUNCTION__, on);
 
     if (Active() == on) {
 	return;				// already active, no action
@@ -188,7 +191,7 @@ cSoftOsd::cSoftOsd(int left, int top, uint level)
        OsdHeight(), left, top, level);
      */
 
-    this->Level = level;
+    //this->Level = level;
     SetActive(true);
 }
 
@@ -334,6 +337,9 @@ void cSoftOsd::Flush(void)
 //	OSD provider
 //////////////////////////////////////////////////////////////////////////////
 
+/**
+**	Soft device plugin OSD provider class.
+*/
 class cSoftOsdProvider:public cOsdProvider
 {
   private:
@@ -357,12 +363,13 @@ cOsd *cSoftOsdProvider::CreateOsd(int left, int top, uint level)
 {
     //dsyslog("[softhddev]%s: %d, %d, %d\n", __FUNCTION__, left, top, level);
 
-    Osd = new cSoftOsd(left, top, level);
-    return Osd;
+    return Osd = new cSoftOsd(left, top, level);
 }
 
 /**
-**	 Returns true if this OSD provider is able to handle a true color OSD.
+**	Check if this OSD provider is able to handle a true color OSD.
+**
+**	@returns true we are able to handle a true color OSD.
 */
 bool cSoftOsdProvider::ProvidesTrueColor(void)
 {
@@ -810,13 +817,21 @@ int64_t cSoftHdDevice::GetSTC(void)
 /**
 **	Set trick play speed.
 **
+**	Every single frame shall then be displayed the given number of
+**	times.
+**
 **	@param speed	trick speed
 */
 void cSoftHdDevice::TrickSpeed(int speed)
 {
     dsyslog("[softhddev]%s: %d\n", __FUNCTION__, speed);
+
+    ::TrickSpeed(speed);
 }
 
+/**
+**	Clears all video and audio data from the device.
+*/
 void cSoftHdDevice::Clear(void)
 {
     dsyslog("[softhddev]%s:\n", __FUNCTION__);
@@ -825,6 +840,9 @@ void cSoftHdDevice::Clear(void)
     ::Clear();
 }
 
+/**
+**	Sets the device into play mode (after a previous trick mode)
+*/
 void cSoftHdDevice::Play(void)
 {
     dsyslog("[softhddev]%s:\n", __FUNCTION__);