when opening an image, check list of supported image formats. add error messages when openining AVI file fails, add fixme

veejay-current/veejay-server/libel/avilib.c

@@ -63,6 +63,34 @@ static char id_str[MAX_INFO_STRLEN];
 #define FRAME_RATE_SCALE 1000000
 
 
+static char *avi_error_list[] = {
+	"Unknown",				
+	"The write of the data would exceed",		// AVI_ERR_SIZELIM
+	"Error opening the AVI file - wrong path",	// AVI_ERR_OPEN
+	"Error reading from AVI file",			// AVI_ERR_READ
+	"Error writing to AVI file",
+	"Could not write index to AVI file",
+	"Could not write header to AVI file",
+	"Operation not permitted",
+	"Memory allocation failed",
+	"Not an AVI file",
+	"AVI file has no header list",
+	"AVI file has no MOVI list",
+	"AVI file contains no video data",
+	"AVI file has no index",
+	"AVI file is empty (header only)",		// AVI_ERR_EMPTY
+	NULL
+};
+
+static void avierror(long AVI_errno) {
+	if(AVI_errno < 0 || AVI_errno > 14) {
+		veejay_msg(0, "AVI Error: %s", avi_error_list[0]);
+	}
+
+	veejay_msg(0, "AVI Error: %s", avi_error_list[ AVI_errno ] );
+}
+
+
 /*******************************************************************
  *                                                                 *
  *    Utilities for writing an AVI File                            *
@@ -1972,6 +2000,7 @@ avi_t *AVI_open_input_indexfile(char *filename, int getIndex, char *indexfile)
   if(AVI==NULL)
     {
       AVI_errno = AVI_ERR_NO_MEM;
+      avierror(AVI_errno);
       return 0;
     }
   veejay_memset((void *)AVI,0,sizeof(avi_t));
@@ -1989,6 +2018,7 @@ avi_t *AVI_open_input_indexfile(char *filename, int getIndex, char *indexfile)
     {
       AVI_errno = AVI_ERR_OPEN;
       free(AVI);
+      avierror(AVI_errno);
       return 0;
     }
  
@@ -1997,6 +2027,7 @@ avi_t *AVI_open_input_indexfile(char *filename, int getIndex, char *indexfile)
 	{
 		AVI_errno = AVI_ERR_EMPTY;
 		free(AVI);
+		avierror(AVI_errno);
 		return 0;
 	}
 	lseek( AVI->fdes,0,SEEK_SET );
@@ -2010,8 +2041,10 @@ avi_t *AVI_open_input_indexfile(char *filename, int getIndex, char *indexfile)
       AVI->aptr=0; //reset  
   }
 
-  if (AVI_errno)
+  if (AVI_errno) {
+   	  avierror(AVI_errno);
       	  return AVI=NULL;
+  }
   else
       return AVI;
 }
@@ -2078,6 +2111,7 @@ avi_t *AVI_open_input_file(char *filename, int getIndex, long mmap_size)
   if(AVI==NULL)
     {
       AVI_errno = AVI_ERR_NO_MEM;
+      avierror(AVI_errno);
       return 0;
     }
   
@@ -2090,6 +2124,7 @@ avi_t *AVI_open_input_file(char *filename, int getIndex, long mmap_size)
     {
       AVI_errno = AVI_ERR_OPEN;
       free(AVI);
+      avierror(AVI_errno);
       return 0;
     }
   
@@ -2101,11 +2136,10 @@ avi_t *AVI_open_input_file(char *filename, int getIndex, long mmap_size)
   }
 
   if (AVI_errno) {
+	avierror(AVI_errno);
 	return 0;
   }
   
- 
-  
   if(!AVI_errno)
   {
 	if( AVI_mmap_file(AVI,mmap_size) == 0 ) {

veejay-current/veejay-server/libel/lav_io.c

@@ -34,6 +34,8 @@
 //#include <veejay/vj-lib.h>
 #include <libvjmsg/vj-msg.h>
 #ifdef USE_GDK_PIXBUF
+#include <gmodule.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
 #include <libel/pixbuf.h>
 #endif
 #include <libavcodec/avcodec.h>
@@ -67,6 +69,37 @@ static int      output_scale_height = 0;
 static float        output_fps = 25.0;
 static int      output_yuv = 1; // 422
 
+
+char *get_filename_ext(char *filename) {
+	char *dot = strrchr(filename, '.');
+	if(!dot || dot == filename) 
+		return NULL;
+	return dot + 1;
+}
+
+int	lav_is_supported_image_file(char *filename)
+{
+	GSList *list = gdk_pixbuf_get_formats();
+	GSList *iter;
+	int i;
+
+	char *ext = get_filename_ext(filename);
+
+	for( iter = list; iter->next != NULL; iter = iter->next ) {
+		gchar **extensions = gdk_pixbuf_format_get_extensions (list->data);
+		for( i = 0; extensions[i] != NULL; i ++ ) {
+			if( strncasecmp(ext, extensions[i], strlen(ext)) == 0 ) {
+				g_strfreev(extensions);
+				g_slist_free(list);
+				return 1;	
+			}
+		}	
+		g_strfreev (extensions);
+	}
+	g_slist_free(list);
+	return 0;
+}
+
 void    lav_set_project(int w, int h, float f, int fmt)
 {
     output_scale_width = w;
@@ -997,18 +1030,24 @@ lav_file_t *lav_open_input_file(char *filename, long mmap_size)
     }
 
 #ifdef USE_GDK_PIXBUF
-    lav_fd->picture = vj_picture_open( (const char*) filename,
-        output_scale_width, output_scale_height, get_ffmpeg_pixfmt(output_yuv) );
+    int is_picture = lav_is_supported_image_file( filename );
+#else
+    int is_picture = 0;
+#endif
+
+    if( is_picture ) {
+#ifdef USE_GDK_PIXBUF
+    	lav_fd->picture = vj_picture_open( (const char*) filename, output_scale_width, output_scale_height, get_ffmpeg_pixfmt(output_yuv) );
    	if(lav_fd->picture)
     	{
         	lav_fd->format = 'x';
         	lav_fd->bogus_len = (int) output_fps;
         	video_comp = pict;
-        ret = 1;
         	veejay_msg(VEEJAY_MSG_DEBUG,"\tLoaded image file");
         	return lav_fd;
     	}
 #endif
+    }
     else
     {
         lav_fd->avi_fd = AVI_open_input_file(filename,1,mmap_size);

veejay-current/veejay-server/veejay/vj-misc.c

@@ -220,7 +220,7 @@ filelist_t *find_media_files( veejay_t *info )
 	return fl;
 }
 
-/* FIXME: issue #78
+/* TODO: libvevosample
  * fx state is currently global, damage control is to check fx chain of current playing sample
  * for FX that needs a background frame.
  * before: apply on all FX

veejay-current/veejay-server/veejay/vj-perform.c

@@ -3296,7 +3296,7 @@ static	void	vj_perform_render_osd( veejay_t *info, video_playback_setup *setting
 	frame->data[1] = primary_buffer[destination]->Cb;
 	frame->data[2] = primary_buffer[destination]->Cr;
 
-	if( !frame->ssm)
+	if( !frame->ssm) //FIXME this is costly just to render OSD
 	{
 		chroma_supersample(
 			settings->sample_mode,