v01

thirdparty/Pangolin/pyexamples/SimpleVideo.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+import sys
+import os
+import argparse
+import numpy as np
+import time
+import json
+
+# If this example doesn't work, it's probably because this path is wrong...
+sys.path.append('../build/src')
+
+import pypangolin as pango
+
+def main(flags):
+    vid_uri = flags.pango
+    vout_uri = flags.pangoOut
+
+    vid = pango.VideoInput(vid_uri)
+    vout = pango.VideoOutput(vout_uri) if vout_uri else None
+
+    device_properties = vid.DeviceProperties()
+
+    # print metadata
+    print("Opened video uri: '{}' with {} x {} dimensions".format( vid_uri,vid.Width(),vid.Height()))
+
+    # user specified initial frame
+    vid.Seek(flags.startFrame)
+
+    # show each frame
+    streamsBitDepth = vid.GetStreamsBitDepth()
+
+    for frame in vid:
+        if vout:
+            vout.WriteStreams(frame, streamsBitDepth, vid.FrameProperties(), device_properties);
+
+        # frame is a list of Images! One per stream
+        # process(frame)
+
+        # printing
+        sys.stdout.write('\rframe: {} / {}'.format(vid.GetCurrentFrameId(), vid.GetTotalFrames()))
+
+    print('\nDONE')
+
+if __name__ == "__main__":
+    # input flags
+    parser = argparse.ArgumentParser('Read a .pango file frame by frame. Optionally stream to another video output.')
+    parser.add_argument(
+        '--pango', type=str,
+        help='path to the input pango file.')
+    parser.add_argument(
+        '--startFrame', type=int, default=0,
+        help='index of the start frame (inclusive)')
+    parser.add_argument(
+        '--pangoOut', type=str, default=None,
+        help='path to the output pango file.')
+
+    # main function
+    main(parser.parse_args())