Fonction d'extraction des informations du film

vid_convert.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import json
+import subprocess
+import logging
+
+
+def get_infos(file):
+    '''
+    Cette fonction extrait les informations du film à l'aide de ffprobe et les stocke
+    dans un dictionnaire pour une utilisation ultérieure.
+
+    -> http://ffmpeg.org/ffprobe.html
+    '''
+    v_infos, a_infos = {}, {}
+    v_infos_cmd = f"ffprobe -v quiet -print_format json -show_format -show_streams -select_streams v {file}"
+    v_infos_raw = subprocess.getoutput(v_infos_cmd)
+    a_infos_cmd = f"ffprobe -v quiet -print_format json -show_format -show_streams -select_streams a {file}"
+    a_infos_raw = subprocess.getoutput(a_infos_cmd)
+    full_v_infos = json.loads(v_infos_raw)
+    full_a_infos = json.loads(a_infos_raw)
+    v_stream = full_v_infos['streams'][0]
+    v_infos.update({
+        'height': v_stream['height'],
+        'width': v_stream['width'],
+        'color_primaries': v_stream['color_primaries'],
+        'color_space': v_stream['color_space'],
+        'color_transfer': v_stream['color_transfer'],
+        'dar': v_stream['display_aspect_ratio']
+        })
+    a_infos = []
+    for a_stream in full_a_infos['streams']:
+        a_stream_infos = {
+                'index': a_stream['index'],
+                'channels': a_stream['channels']}
+        a_infos.append(a_stream_infos)
+    duration = subprocess.getoutput(f"ffprobe -v quiet -print_format json -show_format {file}")
+    duration = json.loads(duration)
+    duration = float(duration['format']['duration'])
+    infos = {'duration': duration, 'video': v_infos, 'audio': a_infos}
+    logging.debug("Informations du film : \n" + json.dumps(infos, indent=True))
+    return infos
+
+
+if __name__ == '__main__':
+    import argparse
+    parser = argparse.ArgumentParser()
+    parser.add_argument("f_input")
+    parser.add_argument("-d", "--debug", dest='debug', action='store_true')
+    args = parser.parse_args()
+    if args.debug:
+        logging.basicConfig(format='[%(asctime)s]\n%(message)s', level=logging.DEBUG, datefmt='%d/%m/%Y %H:%M:%S')
+    else:
+        logging.basicConfig(format='[%(asctime)s]\n%(message)s', level=logging.INFO, datefmt='%d/%m/%Y %H:%M:%S')
+    get_infos(args.f_input)