From 366e4bb6fe99e455cc3c0f78c320e4d1427248da Mon Sep 17 00:00:00 2001
From: pux <pux@pux.dom>
Date: Wed, 12 Feb 2020 22:42:59 +0100
Subject: escaping works with spaces, commas still make it fail

---
 nstvid.py | 79 ++++++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 48 insertions(+), 31 deletions(-)

diff --git a/nstvid.py b/nstvid.py
index 18873d4..d663db3 100755
--- a/nstvid.py
+++ b/nstvid.py
@@ -3,11 +3,19 @@
 # neural style transfer video generator
 # 2020-02-11 Oliver Meckmann
 
+# meant to be run from the root directory of this project:
+# https://github.com/ProGamerGov/neural-style-pt
+
+# opticalflow.py from this project should also be copied over to the
+# neural-style-pt root directory
+# https://github.com/larspars/neural-style-video
+
+
 from gooey import Gooey, GooeyParser
 import subprocess
 import os
 import glob
-import shlex
+#from shlex import quote
 
 @Gooey(default_size=(800, 600), terminal_font_color="#FFFFFF", \
         header_bg_color="#000000")
@@ -31,17 +39,21 @@ def init():
 
 def main():
     print("Running ffmpeg extract images")
-    subprocess.Popen("ffmpeg -i " + params.input_video \
-            + " -r " + params.fps + " -f image2 " \
-            + params.output_dir + os.sep + "image-%5d.jpg", \
-            shell=True).wait()
+    command = [
+            "ffmpeg", "-i", r"" + params.input_video,
+            "-r", r"" + params.fps, "-f", "image2",
+            r"" + params.output_dir + os.sep + "image-%5d.jpg"]
+    subprocess.Popen(command).wait()
+
     print("Running ffmpeg extract audio")
-    subprocess.Popen("ffmpeg -y -i " + params.input_video + " " \
-            + params.output_dir + os.sep + "rawaudio.wav", \
-            shell=True).wait()
+    command = [
+            "ffmpeg", "-y", "-i", r"" + params.input_video,
+            r"" + params.output_dir + os.sep + "rawaudio.wav"]
+    subprocess.Popen(command).wait()
 
     left = len(params.output_dir)
-    for fn in sorted(glob.glob(params.output_dir + os.sep + "image-*.jpg")):
+    flist = sorted(glob.glob(params.output_dir + os.sep + "image-*.jpg"))
+    for fn in flist:
         num = fn[left+len(os.linesep)+6:-4]
         print("Processing loop: new iteration")
         print("Num: " + num + ", input file: " + fn)
@@ -49,9 +61,9 @@ def main():
         command = [
                 "python", "neural_style.py",
                 "-style_image", r"" + params.style_image,
-                "-content_image", params.output_dir + os.sep + "image-" \
+                "-content_image", r"" + params.output_dir + os.sep + "image-" \
                 + str(num) + ".jpg",
-                "-output_image", params.output_dir + os.sep \
+                "-output_image", r"" + params.output_dir + os.sep \
                 + "generated-" + str(num) + ".jpg",
                 "-image_size", params.image_size,
                 "-style_weight", params.style_weight,
@@ -72,28 +84,33 @@ def main():
                 "-multidevice_strategy", "4,7,29"]
         subprocess.Popen(command).wait()
 
-        print("Running opticalflow: num: " + num)
-        subprocess.Popen( \
-                "python opticalflow.py "
-                + "--input_1 " + params.output_dir \
-                + os.sep + "image-" + str(num) + ".jpg " \
-                + "--input_1_styled " + params.output_dir
-                + os.sep + "generated-" + str(num) + ".jpg " \
-                + "--input_2 " + params.output_dir + os.sep + "image-" \
-                + str(int(num)+1).zfill(5) + ".jpg " \
-                + "--output " + params.output_dir \
-                + os.sep + "blended-" + str(num) \
-                + ".jpg " \
-                + "--alpha 0.55 " \
-                + "--flowblend False", shell=True).wait()
+        if fn is not flist[-1]:
+            print("Running opticalflow: num: " + num)
+            command = [
+                    "python", "opticalflow.py",
+                    "--input_1", r"" + params.output_dir \
+                    + os.sep + "image-" + str(num) + ".jpg",
+                    "--input_1_styled", r"" + params.output_dir \
+                    + os.sep + "generated-" + str(num) + ".jpg",
+                    "--input_2", r"" + params.output_dir + os.sep + "image-" \
+                    + str(int(num)+1).zfill(5) + ".jpg",
+                    "--output", r"" + params.output_dir \
+                    + os.sep + "blended-" + str(num) + ".jpg",
+                    "--alpha", "0.55",
+                    "--flowblend", "False"]
+            subprocess.Popen(command).wait()
+        else:
+            print("Last element: skipping opticalflow")
 
     print("Running ffmpeg merge")
-    subprocess.Popen("ffmpeg -y -framerate " + params.fps + " " \
-            + "-i " + params.output_dir + os.sep + "blended-%05d.jpg " \
-            + "-i " + params.output_dir + os.sep + "rawaudio.wav " \
-            + "-c:v libx264 -preset veryslow -qp 0 -pix_fmt yuv420p " \
-            + params.output_dir + os.sep + "out.mp4", shell=True).wait()
-
+    command = [
+            "ffmpeg", "-y", "-framerate", params.fps,
+            "-i", r"" + params.output_dir + os.sep + "blended-%05d.jpg",
+            "-i", r"" + params.output_dir + os.sep + "rawaudio.wav",
+            "-c:v", "libx264", "-preset", "veryslow", "-qp", "0",
+            "-pix_fmt", "yuv420p", r""
+            + params.output_dir + os.sep + "out.mp4"]
+    subprocess.Popen(command).wait()
 
 if __name__ == '__main__':
     params = init()
-- 
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