arpruss · July 19, 2023 15:54 · Jul 19, 2023 · Jul 19, 2023 · Jul 19, 2023 · Jul 19, 2023
diff --git a/videosplitter.py b/videosplitter.py
@@ -14,8 +14,8 @@ def getDuration(filename):
             return float(duration[0])*3600+float(duration[1])*60+float(duration[0])
 
 def trySplit(filename,parts):
-    print("Trying to split into %d parts." % parts)
-    duration = getDuration(sys.argv[1])
+    print("Trying to split %s into %d parts." % (filename,parts))
+    duration = getDuration(filename)
     print("Original duration: %g sec." % duration)
     splitSize = int(math.ceil(duration / parts))
     print("Aiming at %d sec parts." % splitSize)
@@ -54,6 +54,7 @@ def help():
     sys.exit(0)
 
 args = sys.argv[1:]
+
 while args:
     if not args[0].startswith("-"):
         break
@@ -71,7 +72,7 @@ def help():
 
 if not args:
     help()
-    
+
 name = args[0]
 
 size = os.stat(name).st_size

diff --git a/videosplitter.py b/videosplitter.py
@@ -14,11 +14,11 @@ def getDuration(filename):
             return float(duration[0])*3600+float(duration[1])*60+float(duration[0])
 
 def trySplit(filename,parts):
-    print("Trying to split into %d parts" % parts)
+    print("Trying to split into %d parts." % parts)
     duration = getDuration(sys.argv[1])
-    print("Duration: %g sec" % duration)
-    splitSize = int(duration / parts)
-    print("aiming at sizes of size %d sec" % splitSize)
+    print("Original duration: %g sec." % duration)
+    splitSize = int(math.ceil(duration / parts))
+    print("Aiming at %d sec parts." % splitSize)
     position = 0
     nameParts = os.path.splitext(filename)
     for i in range(parts):
@@ -33,7 +33,7 @@ def trySplit(filename,parts):
             cmd += ["-ss", "%d" % start]
         if i + 1 < parts:
             cmd += ["-to", "%d" % position]
-        outname = "%s-part%02d%s" % (nameParts[0],i,nameParts[1])
+        outname = "%s-part%02d%s" % (nameParts[0],i+1,nameParts[1])
         cmd += ["-i", filename, "-c", "copy", outname]
         print(cmd)
         try:
@@ -76,7 +76,7 @@ def help():
 
 size = os.stat(name).st_size
 if size <= maxSize:
-    print("Size is %d, which is good enough" % size)
+    print("Size is already %d, which is good enough!" % size)
     sys.exit(0)
 
 partCount = int(math.ceil((float(size) / maxSize)))

diff --git a/videosplitter.py b/videosplitter.py
@@ -25,6 +25,8 @@ def trySplit(filename,parts):
         start = position
         if i > 0:
             start -= overlapSeconds
+            if start < 0:
+                start = 0
         position += splitSize
         cmd = ["ffmpeg"]
         if i > 0:
@@ -45,14 +47,39 @@ def trySplit(filename,parts):
             print("Too big!")
             return False
     return True
+
+def help():    
+    print("python videosplitter.py [--max maxByteSize] [--overlap overlapSeconds] filename")
+    print("(Note: need to have ffprobe and ffmpeg on the path.)");
+    sys.exit(0)
+
+args = sys.argv[1:]
+while args:
+    if not args[0].startswith("-"):
+        break
+    if args[0] == "--":
+        args = args[1:]
+        break
+    if args[0] == "--max":
+        maxSize = int(args[1])
+        args = args[2:]
+    elif args[0] == "--overlap":
+        overlapSeconds = int(args[1])
+        args = args[2:]
+    else:
+        help()
 
+if not args:
+    help()
+
+name = args[0]
 
-size = os.stat(sys.argv[1]).st_size
+size = os.stat(name).st_size
 if size <= maxSize:
     print("Size is %d, which is good enough" % size)
     sys.exit(0)
 
 partCount = int(math.ceil((float(size) / maxSize)))
 
-while not trySplit(sys.argv[1],partCount):
+while not trySplit(name,partCount):
     partCount += 1
diff --git a/videosplitter.py b/videosplitter.py
@@ -52,7 +52,7 @@ def trySplit(filename,parts):
     print("Size is %d, which is good enough" % size)
     sys.exit(0)
 
-partCount = int(math.ceil((size*1.05 / maxSize)))
+partCount = int(math.ceil((float(size) / maxSize)))
 
 while not trySplit(sys.argv[1],partCount):
     partCount += 1
diff --git a/videosplitter.py b/videosplitter.py
@@ -0,0 +1,58 @@
+import os
+import sys
+import math
+import subprocess
+
+maxSize = 999999999
+overlapSeconds = 6
+
+def getDuration(filename):
+    pipe = subprocess.Popen(["ffprobe", filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
+    for line in pipe.stderr:
+        if line.strip().startswith("Duration: "):
+            duration = line[12:].split(",")[0].split(":")
+            return float(duration[0])*3600+float(duration[1])*60+float(duration[0])
+
+def trySplit(filename,parts):
+    print("Trying to split into %d parts" % parts)
+    duration = getDuration(sys.argv[1])
+    print("Duration: %g sec" % duration)
+    splitSize = int(duration / parts)
+    print("aiming at sizes of size %d sec" % splitSize)
+    position = 0
+    nameParts = os.path.splitext(filename)
+    for i in range(parts):
+        start = position
+        if i > 0:
+            start -= overlapSeconds
+        position += splitSize
+        cmd = ["ffmpeg"]
+        if i > 0:
+            cmd += ["-ss", "%d" % start]
+        if i + 1 < parts:
+            cmd += ["-to", "%d" % position]
+        outname = "%s-part%02d%s" % (nameParts[0],i,nameParts[1])
+        cmd += ["-i", filename, "-c", "copy", outname]
+        print(cmd)
+        try:
+            os.unlink(outname)
+        except:
+            pass
+        subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
+        size = os.stat(outname).st_size
+        print("Size: %d" % size)
+        if size > maxSize:
+            print("Too big!")
+            return False
+    return True
+
+
+size = os.stat(sys.argv[1]).st_size
+if size <= maxSize:
+    print("Size is %d, which is good enough" % size)
+    sys.exit(0)
+
+partCount = int(math.ceil((size*1.05 / maxSize)))
+
+while not trySplit(sys.argv[1],partCount):
+    partCount += 1
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