writing SER file works.

README.md

@@ -1,6 +1,12 @@
 # SimpleSkyCam
 
 Simple application  to create images using a teleskope and a cameramodul.
+We have basic support for follow any object seen by the cammera.
+
+One SER sample Outputfile can be found in the SampleOutput folder.
+
+# Screenshots
+
+![Screenshot](https://steffen.gulpe.de/gitea/steffen/SimpleSkyCam/raw/branch/master/SampleOutput/screenshot-2024_04_13.png)
 
-Screenshots and other stuff can be found at: <https://steffen.gulpe.de/progs/SimpleSkyCam>
 

convert.cc

@@ -54,8 +54,6 @@ struct timeval convert_debug_tv;
 /*
  * will be called on first frame
  */
-#define LEN_FILENAME 64
-#define LEN_FULLFILENAME 256
 int convert_debug_open(uint32_t pixelformat, int srcw, int srch) {
 	time_t t = time(NULL);
 	struct tm *tmptr;

gui.h

@@ -16,6 +16,9 @@
 #include <iostream>
 #include <list>
 
+#define LEN_FILENAME 64
+#define LEN_FULLFILENAME 256
+
 enum {
 	VID_ENTERDATA_NONE = 0,
 	VID_ENTERDATA_POS,

output.cc

@@ -42,16 +42,29 @@ gboolean cb_thread_output (gpointer data) {
 }
 
 
+void input_getdestandsufix (std::string *sdir, std::string *ssufix) {
+	GtkWidget *inputdest = GTK_WIDGET(gtk_builder_get_object (GTK_BUILDER(_builder_), "input_entry_destpath"));
+	GtkWidget *inputsufix = GTK_WIDGET(gtk_builder_get_object (GTK_BUILDER(_builder_), "btn_input_filesufix"));
+	if (sdir != NULL) 	*sdir = gtk_entry_get_text(GTK_ENTRY(inputdest));
+	if (ssufix != NULL)	*ssufix = gtk_entry_get_text(GTK_ENTRY(inputsufix));
+}
+
+
 void cb_input_btncapture (GtkWidget *widget, gpointer data) {
+	std::string sdir, ssufix;
+
 	printf ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
-	GtkWidget *inputdest = GTK_WIDGET(gtk_builder_get_object (GTK_BUILDER(_builder_), "input_entry_destpath"));
-	std::string s = gtk_entry_get_text(GTK_ENTRY(inputdest));
-	output.SERStart(s);
+	input_getdestandsufix(&sdir, &ssufix);
+	output.SERStart(sdir, ssufix);
 };
 
 
 void cb_input_btnsnapshot (GtkWidget *widget, gpointer data) {
+	std::string sdir, ssufix;
+
 	printf ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
+	input_getdestandsufix(&sdir, &ssufix);
+	// output.Capture(sdir, ssufix);
 };
 
 void cb_input_btnstop (GtkWidget *widget, gpointer data) {
@@ -76,15 +89,17 @@ gpointer _OutputThread (gpointer data) {
 Output::Output() { // @suppress("Class members should be properly initialized")
 	printf ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
 
+	outputser = NULL;
 	g_mutex_init (&mutexin);
 	g_mutex_init (&muteximage);
 	g_mutex_init (&mutextmp);
 	g_mutex_init (&mutex);
 	running = 1;
 	inFrame.Delete();
+	mode = 0;
+
 	thread = NULL;
 	thread = g_thread_new("Output", _OutputThread, NULL);
-	mode = 0;
 };
 
 
@@ -95,12 +110,23 @@ void Output::NotifyGTK () {
 
 /*
  * open output file and set mode flag
+ * all the other SER stuff will be set with the first frame
  */
-void Output::SERStart (std::string destpath) {
-	printf ("%s:%d SERStart Destination Folder: %s\n", __FILE__, __LINE__, destpath.c_str());
+void Output::SERStart (std::string destpath, std::string sufix) {
+	time_t t = time(NULL);
+	struct tm *tmptr;
+	char fname[LEN_FILENAME];
+	char fullfname[LEN_FULLFILENAME];
+
+	//
+	// check to create file, if not possible try creating the directory and create the file again
+	tmptr = localtime(&t);
+	strftime(fname, LEN_FILENAME, "%Y%m%d-%H%M%S", tmptr);
+	snprintf (fullfname, LEN_FULLFILENAME, "%s/%s-%s.ser", destpath.c_str(), fname, sufix.c_str());
+	outputfilename = fullfname;
+	printf ("%s:%d SERStart Destination File: %s\n", __FILE__, __LINE__, outputfilename.c_str());
 
 	mode |= OUTPUT_MODE_SER_STARTED;
-	// start SER output
 	NotifyGTK();
 };
 
@@ -110,7 +136,11 @@ void Output::SERStart (std::string destpath) {
  */
 void Output::SERStop () {
 	mode &= ~(OUTPUT_MODE_SER_STARTED);
-	// stop SER output
+	if (outputser) {
+		// close SER and delete object --> deleting the object should also rewrite the write the header
+		delete outputser;
+		outputser = NULL;
+	}
 	NotifyGTK();
 };
 
@@ -151,10 +181,51 @@ void Output::Thread() {
 
 		if (inFrameNew == 1) {
 			if (mode & OUTPUT_MODE_SER_STARTED) {
-				// for now display error message
-				errormessage_display((char*)"windows-main", (char*)"Error", (char*)"Writing SER files is not finished yet.");
+				if (outputser == NULL) {	// first frame of ser output
+					int pixsize;
+					int serformat;
+					outputserw = inFrame.w;
+					outputserh = inFrame.h;
+					outputserfmt = inFrame.pixfmt;
+
+					if (!ser_convert_type_to_ser(outputserfmt, &pixsize, &serformat)) {
+						errormessage_display((char*)"windows-main", (char*)"Error", (char*)"Pixelformat [%s] not supported.", convert_from_pixelformat(outputserfmt).c_str());
 						SERStop();
 					}
+
+					outputser = new SER();
+					outputser->setWidth(outputserw);
+					outputser->setHeight(outputserh);
+					outputser->setColorID(serformat);
+					outputser->setPixelDepth(pixsize);
+					if (outputser->setFile((char *)outputfilename.c_str()) == -1) {
+						errormessage_display((char*)"windows-main", (char*)"Error", (char*)"Could not set output file [%s]. Error: %s", outputfilename.c_str(), strerror(errno));
+						SERStop();
+					}
+					outputser->setObserver((char *)"FIXME:read username from OS");
+					outputser->setTelescope((char *)"FIXME:not implemented yet");
+					outputser->setInstrument((char *)"FIXME:just read device from dirver");
+					outputser->setNumberOfFrames(0);
+					outputser->writeHeader();
+				}
+
+				else {
+					//
+					// check if the frame type or size changed
+					if (outputserw != inFrame.w || outputserh != inFrame.h || outputserfmt != inFrame.pixfmt) {
+						errormessage_display((char*)"windows-main", (char*)"Error", (char*)"Frame format or dimensions changed.\n(%s @ %d x %d) != (%s @ %d x %d)\n",
+								convert_from_pixelformat(outputserfmt).c_str(), outputserw, outputserh,
+								convert_from_pixelformat(inFrame.pixfmt).c_str(), inFrame.w, inFrame.h);
+						SERStop();
+					}
+				}
+
+				if (outputser != NULL) {	// we need to check in case outputser got deleted.
+					//
+					// write frame
+					outputser->appendFrame(inFrame.data);
+				}
+			}
 			inFrameNew = 0;
 		}
 

output.h

@@ -12,6 +12,7 @@
 #include "config.h"
 #include "video.h"
 #include "videoframe.h"
+#include "ser.h"
 
 
 #define OUTPUT_MODE_SER_STARTED		0x0001
@@ -27,9 +28,15 @@ private:
 	GMutex mutex;				// general mutex for changing settings
 	GThread *thread;
 	unsigned int mode;			// see OUTPUT_MODE_ flags
+	std::string outputfilename;	// current output
 
 	void ComposeOutput();
 	void NotifyGTK ();
+	SER *outputser;
+	int outputserw;			// to detect if the size
+	int outputserh;			// changes white recording
+	uint32_t outputserfmt;	//
+
 public:
 	Output();
 	~Output();
@@ -54,7 +61,7 @@ public:
 	void SetObject (VideoFrame objFrame, int newx, int newy);
 	void GetObjectPos (int *x, int *y);
 
-	void SERStart(std::string destpath);
+	void SERStart(std::string destpath, std::string sufix);
 	void SERStop();
 
 	int GetStatus() { return mode; };

ser.cc

@@ -12,6 +12,31 @@
 #include <time.h>
 #include <sys/time.h>
 #include "ser.h"
+#include "videodev.h"
+
+
+/*
+ * Convert v4l2 pixelformat to the corresponding ser format.
+ * Also return depth per channel.
+ */
+int ser_convert_type_to_ser (int v4l2_fmt, int *pixeldepth, int *serformat) {
+	if (pixeldepth == NULL || serformat == NULL) return 0;
+
+	switch (v4l2_fmt) {
+	case (V4L2_PIX_FMT_RGB24):
+		*serformat = SER_COLORID_RGB;
+		*pixeldepth = 8;
+		break;
+	case (V4L2_PIX_FMT_BGR24):
+		*serformat = SER_COLORID_BGR;
+		*pixeldepth = 8;
+		break;
+	default: return 0;
+	}
+
+	return 1;
+}
+
 
 SER::SER() {
   /* clear header */

ser.h

@@ -38,6 +38,9 @@
 
  */
 
+int ser_convert_type_to_ser (int v4l2_fmt, int *pixeldepth, int *serformat);
+
+
 enum {
   SER_COLORID_MONO = 0,
   SER_COLORID_BAYER_RGGB = 8,

simpleskycam.ui

@@ -2487,6 +2487,11 @@
                       <item translatable="yes">Flat</item>
                       <item translatable="yes">DarkFlat</item>
                     </items>
+                    <child internal-child="entry">
+                      <object class="GtkEntry" id="btn_input_filesufix">
+                        <property name="can-focus">False</property>
+                      </object>
+                    </child>
                   </object>
                   <packing>
                     <property name="expand">False</property>

videoframe.cc

@@ -54,7 +54,7 @@ int VideoFrameRaw::CopyFrom(VideoFrameRaw *src) {
 
 int VideoFrameRaw::CopyFrom(VideoFrame *src) {
 	if (src == NULL) return 0;
-	return CopyFrom(V4L2_PIX_FMT_RGB32, src->w, src->h, src->size, src->data);
+	return CopyFrom(V4L2_PIX_FMT_RGB24, src->w, src->h, src->size, src->data);
 }