run ffmpegs

tsmark/video_annotator.py

@@ -1,14 +1,16 @@
 import os
+import shlex
+import subprocess
 import sys
 import time
 
 import cv2
 
-AUDIO_COMPRESS = "-c:a libmp3lame -ar 44100 -b:a 192k"
-AUDIO_COPY = "-c:a copy"
-AUDIO_DISCARD = "-an"
-VIDEO_COMPRESS = "-c:v mpeg2video -q:v 3 -g 1"
-VIDEO_COPY = "-c:v copy"
+AUDIO_COMPRESS = "-c:a libmp3lame -ar 44100 -b:a 192k".split(" ")
+AUDIO_COPY = "-c:a copy".split(" ")
+AUDIO_DISCARD = "-an".split(" ")
+VIDEO_COMPRESS = "-c:v mpeg2video -q:v 3 -g 1".split(" ")
+VIDEO_COPY = "-c:v copy".split(" ")
 EXT_COMPRESS = ".mpeg"
 
 
@@ -356,7 +358,7 @@ class Marker:
     def print_timestamps(self):
 
         if self.crop[2] is None:
-            cropstr = ""
+            cropstr = []
         else:
             self.opts.ffmpeg_copy = False
             x, y = [
@@ -373,7 +375,7 @@ class Marker:
             if h < 0:
                 y = y + h
                 h = -h
-            cropstr = f"-filter:v crop={w}:{h}:{x}:{y} "
+            cropstr = ["-filter:vf", f"crop={w}:{h}:{x}:{y}"]
         self.stamps.sort()
         print("# Timestamps:")
         audio_str = AUDIO_COPY if self.opts.ffmpeg_copy else AUDIO_COMPRESS
@@ -397,9 +399,25 @@ class Marker:
             to_ft = self.format_time(to_ts)
             from_str = str(from_ts).zfill(padlen)
             to_str = str(to_ts).zfill(padlen)
-            print(
-                f'ffmpeg -i "{src_name}" {cropstr}{video_str} {audio_str} -ss {from_ft} -to {to_ft} "{tgt_name}.trim.{from_str}-{to_str}{tgt_ext}"'
-            )
+            ffmpeg_cmd = [
+                "ffmpeg",
+                "-hide_banner",
+                "-i",
+                shlex.quote(src_name),
+                *cropstr,
+                *video_str,
+                *audio_str,
+                "-ss",
+                f"{from_ft}",
+                "-to",
+                f"{to_ft}",
+                shlex.quote(f"{tgt_name}.trim.{from_str}-{to_str}{tgt_ext}"),
+            ]
+            print(" ".join(ffmpeg_cmd))
+            if self.opts.ffmpeg_run:
+                ffmpeg_cmd[3] = src_name
+                ffmpeg_cmd[-1] = f"{tgt_name}.trim.{from_str}-{to_str}{tgt_ext}"
+                subprocess.run(ffmpeg_cmd)
 
     def save_timestamps(self):
 
@@ -589,5 +607,6 @@ class Marker:
                 self.read_next = True
 
         self.video_reader.release()
+        cv2.destroyAllWindows()
         self.print_timestamps()
         self.save_timestamps()