start adding intro framework

main.py

@@ -38,6 +38,22 @@ def main(args):
         sys.exit(-1)
     log.info("preparing video", input_video=input_file)
 
+    intro_file = args.introvidpath
+    if intro_file is not None:
+        intro_vid_path = Path(intro_file)
+        if not in_vid_path.is_file():
+            log.error("the specified input path does not exist for the intro", path=intro_file)
+            sys.exit(-1)
+        log.info("found intro", input_video=intro_file)
+
+    outro_file = args.outrovidpath
+    if outro_file is not None:
+        outro_vid_path = Path(outro_file)
+        if not outro_vid_path.is_file():
+            log.error("the specified input path does not exist for the outro", path=outro_file)
+            sys.exit(-1)
+        log.info("found outro", input_video=outro_file)
+
     # Hash the video, we use this to see if we have processed this video before
     # and as a simple way to generate temp file names
     sha1 = hashlib.sha1()
@@ -135,7 +151,7 @@ def main(args):
             out_path = Path(args.destination)
             log.info("rendering...")
             start = time.time()
-            render_moments(moment_results[index_min][0], str(in_vid_path.resolve()), str(out_path.resolve()))
+            render_moments(moment_results[index_min][0], str(in_vid_path.resolve()), str(out_path.resolve()), intro_path=intro_file, parallelism=args.parallelism)
             log.info("render complete", duration=time.time() - start, output=str(out_path.resolve()))
             sys.exit(0)
         iterations = iterations + parallelism
@@ -183,19 +199,47 @@ if __name__ == "__main__":
     parser.add_argument("--cost-function", dest="cost", choices=ERROR_FUNCS.keys(), default='quadratic')
 
     parser.add_argument(
-        "--minduration",
+        "--min-duration",
         default=8,
         help="Minimum clip duration",
         dest="mindur",
         type=int,
     )
     parser.add_argument(
-        "--maxduration",
+        "--max-duration",
         default=15,
         help="Maximum clip duration",
         dest="maxdur",
         type=int,
     )
+    parser.add_argument(
+        "--intro-video",
+        default=None,
+        help="Path to a video file to use as an intro",
+        dest="introvidpath",
+        type=str,
+    )
+    parser.add_argument(
+        "--outro-video",
+        default=None,
+        help="Path to a video file to use as an outro",
+        dest="outrovidpath",
+        type=str,
+    )
+    parser.add_argument(
+        "--title-slide-text",
+        default=None,
+        help="Text to show during a title slide. The title slide is played after any provided intro. If there is no intro, the title slide is the intro",
+        dest="outrovidpath",
+        type=str,
+    )
+    parser.add_argument(
+        "--title-slide-duration",
+        default=5,
+        help="Time, in seconds, to show a title slide for",
+        dest="outrovidpath",
+        type=str,
+    )
 
     args = parser.parse_args()
     try:

src/mediautils/video.py

@@ -1,4 +1,5 @@
 import moviepy.editor as mp
+from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 
 def get_subclips(source_video_path, moments):
     vid = mp.VideoFileClip(source_video_path)
@@ -7,10 +8,15 @@ def get_subclips(source_video_path, moments):
         clips.append(vid.subclip(m.start, m.stop))
     return clips, vid
 
-def render_moments(moments, input_video_path, output_path):
+def render_moments(moments, input_video_path, output_path, intro_path=None, outro_path=None, parallelism=1):
         clips, vid = get_subclips(input_video_path, moments)
-        to_render = mp.concatenate_videoclips(clips)
+        size = clips[0].size
-        to_render.write_videofile(output_path, logger=None)
+        if intro_path is not None:
+            iclip = mp.VideoFileClip(intro_path)
+            clips.insert(0, iclip)
+        composite = CompositeVideoClip(clips, size=size)
+        composite.preview()
+        composite.write_videofile(output_path, logger=None, threads=parallelism)
 
 def filter_moments(moments, min_length, max_length):
     return [m for m in moments if m.get_duration() > min_length and m.get_duration() < max_length]