Do not record non-seqential frames

[fgen.git] / fgen.sh

diff --git a/fgen.sh b/fgen.sh
index a0c3800..56b162e 100755 (executable)
--- a/fgen.sh
+++ b/fgen.sh
@@ -62,7 +62,7 @@ function get_label()
 # Arg1: line
 function get_frame_id()
 {
-    frame=$(echo "${1}" | grep -e "label:[0-9]" | ${SED} "s/label:\([0-9]\+\),.*/\1/g")
+    frame=$(echo "${1}" | grep -e "label:[0-9]\+," | ${SED} "s/label:\([0-9]\+\),.*/\1/g")
 
     if [ x"${frame}" = x"" ]; then
         echo ""
@@ -145,7 +145,6 @@ layers=${dest}/layers.txt
 
 if [ ! -d ${dest} ]; then
     mkdir ${dest}
-    #    rm -rf ${dest}
 fi
 
 for tool in convert composite identify; do
@@ -175,6 +174,8 @@ if [ ${trames} -eq 1 ]; then
     # Will start at frame 2 at first loop iteration
     f=1
 
+    nf=""
+    oldnf=""
     files=""
 
     while read l; do
@@ -196,9 +197,23 @@ if [ ${trames} -eq 1 ]; then
         files="${files} -page ${p} ${src}[${f}]"
 
         if [ x"${nf}" != x"" ]; then
+            # Only check expected frame if oldnf is set...
+            if [ x"${oldnf}" != x"" ]; then
+                expected_nf=$((${oldnf} + 1))
+
+                if [ ${expected_nf} -ne ${nf} ]; then
+                    echo "Error: invalid frame sequence: ${nf}"
+                    echo "  previous: ${oldnf}"
+                    echo "  expected: ${expected_nf}"
+                    files=""
+                    continue
+                fi
+            fi
+
             log_dbg "New frame ID: ${nf}"
             convert -colorspace sRGB -page +0+0 ${dest}/background.png ${files} -background none -layers merge ${dest}/f${nf}.png
             files=""
+            oldnf="${nf}"
         fi
     done <${layers}
 fi