# HG changeset patch
# User mdd
# Date 1511536610 -3600
# Node ID 92409c985e0d71312b8ef1b06f46fb83ecbc7049
# Parent  0d021d47eca5023c806c6953a1c146f638364028
added autocrop and 720p rescaler

diff -r 0d021d47eca5 -r 92409c985e0d ts2mkv.py
--- a/ts2mkv.py	Fri Nov 24 02:12:25 2017 +0100
+++ b/ts2mkv.py	Fri Nov 24 16:16:50 2017 +0100
@@ -30,16 +30,18 @@
         self.msg_ffmpeg = ""
         self.command = None
 
+        self.scaleto_720p = True
+
         self.video_options = [
             "-c:v libx264",
-            "-preset slow",
-            "-crf 21"
+            "-preset faster", # slow
+            "-tune film", # film / animation
+            "-crf 19" # 21, better 19
         ]
         self.audio_options = [
             "-c:a copy",
         ]
 
-
     def get_stream_index(self, data):
         idx = data.find("Stream #")
         if idx == -1:
@@ -55,15 +57,40 @@
         # http://www.omdbapi.com/apikey.aspx
         self.msg_eit = readeit(os.path.splitext(filename)[0] + ".eit")
 
+    def get_crop_option(self):
+        lines = filter_lines(self.msg_ffmpeg, "[Parsed_cropdetect").split("\n")
+        option = None
+        for line in lines:
+            tmp = line[line.find(" crop="):].strip()
+            #print "DEBUG: " + tmp
+            if not option:
+                option = tmp
+            else:
+                if option != tmp:
+                    self.msg_prepare += "WARNING: cropdetect inconsistent over scan time, disabling autocrop\n"
+                    return None
+        self.msg_prepare += "Crop detected: %s\n" % option
+        return option
+
     def get_ffmpeg_command(self, filename):
         commands = []
         fn = "\\'".join(p for p in filename.split("'"))
 
-        p = subprocess.Popen(["ffmpeg", "-i", fn],
-            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        #  ffmpeg -ss 00:05:00 -t 2 -i testfiles/chappie.ts -vf "cropdetect=24:16:0" -f null -
+
+        cmd = ["ffmpeg",
+                "-ss 00:05:00", "-t 1", # search to 5 minutes, analyze 1 second
+                "-i %s" % fn,
+                "-vf \"cropdetect=24:2:0\"", # detect black bar crop on top and bottom
+                "-f null", "-" # no output file
+                ]
+        print " ".join(cmd)
+        p = subprocess.Popen(shlex.split(" ".join(cmd)), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         out, err = p.communicate()
+        print "Command return code: ", p.poll()
         self.msg_ffmpeg = out + "\n" + err
         self.msg_ffmpeg = self.msg_ffmpeg[self.msg_ffmpeg.find("Input #0"):]
+
         # find "Stream #0:" lines
         info = filter_lines(self.msg_ffmpeg, "Stream #0:")
 
@@ -107,12 +134,23 @@
             audiomap.append(a)
 
 
+
         self.msg_prepare += "Video Stream selected: Stream #%s\n" % v
         cmd = [
             "ffmpeg",
             "-i %s" % fn,
             "-map %s" % v,
             ]
+        flt = []
+        crop = self.get_crop_option()
+        if crop:
+            flt.append(crop)
+        if self.scaleto_720p:
+            flt.append("scale='min(1280,iw)':-2'") # -2 ensures division by two for codec
+            self.msg_prepare += "Scaling cropped output stream to 720p\n"
+        if len(flt) > 0:
+            # append video filters
+            cmd.append('-filter:v "%s"' % ",".join(flt))
         for a in audiomap:
             self.msg_prepare += "Audio Stream selected: Stream #%s\n" % a
             cmd.append("-map %s" % a)
@@ -133,7 +171,8 @@
     os.system('cls' if os.name == 'nt' else 'clear')
 
     # TODO: get file from commandline
-    filename = "testfiles/chappie.ts"
+    #filename = "testfiles/chappie.ts"
+    filename = "/srv/storage0/DREAMBOX/Science Fiction/THE_ISLAND.ts"
 
     mkv = ts2mkv()
     mkv.load(filename)
@@ -147,5 +186,5 @@
         print mkv.msg_ffmpeg
 
         for cmd in mkv.command:
-            print "Executing ffmpeg:\n%s\n" % " ".join(cmd)
+            print "Executing ffmpeg:\n%s\n" % cmd
             run_command(cmd)