Add jpeg extract functionnality (for cover image)

export-video.py

@@ -42,7 +42,10 @@ params = {
     "verbose": True,
     "pattern": "*",
     "twopass": False,
-    "recursive": False}
+    "recursive": False,
+    "format": [],
+    "delay": ""
+    }
 
 VERSION = "0.1dev"
 
@@ -124,7 +127,7 @@ def process_arg(sysarg):
     """
     try:
         opts, args = getopt.getopt(
-            sysarg, "hi:o:dp:a:v:2",
+            sysarg, "hi:o:dp:a:v:2f:t:",
             [
                 "help",
                 "input=",
@@ -133,7 +136,9 @@ def process_arg(sysarg):
                 "pattern=",
                 "abitrate=",
                 "vbitrate=",
-                "twopass"
+                "twopass",
+                "format=",
+                "delay="
             ]
         )
     except getopt.GetoptError:
@@ -161,6 +166,10 @@ def process_arg(sysarg):
             params["twopass"] = True
         if opt in ("-r", "--recursive"):
             params["recursive"] = True
+        if opt in ("-f", "--format"):
+            params["format"] = arg
+        if opt in ("-t", "--delay"):
+            params["delay"] = arg
 
 
 def encode_h264(src, dest):
@@ -212,12 +221,36 @@ def encode_h264(src, dest):
         execute(encode)
 
 
+def extract_jpg(src, dest, delay):
+    """
+    Extract an image from a video file
+    """
+    logging.info(
+        "extract_jpeg() started to %s from %s with %s s delay",
+        src,
+        dest,
+        delay
+        )
+    encode = [
+        EXEC_FFMPEG,
+        "-ss", delay,
+        "-i", src,
+        "-f", "image2",
+        "-vframes", "1",
+        dest+".jpg"
+    ]
+    logging.debug(encode)
+    execute(encode)
+
+
 if __name__ == "__main__":
     EXEC_FFMPEG = find_executable("ffmpeg")
     if not EXEC_FFMPEG:
         print('ffmpeg not found, exiting')
         sys.exit(2)
     process_arg(sys.argv[1:])
+    if not params["format"]:
+        params["format"] = ["mp4", "jpg"]
     if not params["file_input"]:
         print("you must specify a file / directory input")
         sys.exit(2)
@@ -233,9 +266,20 @@ if __name__ == "__main__":
         )
         for f in video_files:
             logging.info('batch encode | file %s', f)
+            if "mp4" in params["format"]:
                 encode_h264(f, os.path.join(
                     params["file_output"], get_file_name(f)
                 ))
+            if "jpg" in params["format"]:
+                extract_jpg(
+                    f,
+                    os.path.join(
+                        params["file_output"],
+                        get_file_name(f)
+                    ),
+                    params["delay"]
+                )
+
     else:
         if os.path.isfile(params["file_input"]):
             if not params["file_output"]:
@@ -247,7 +291,15 @@ if __name__ == "__main__":
                         get_file_name(params["file_input"])
                     )
             logging.info('%s is a file', params["file_input"])
+            if "mp4" in params["format"]:
                 encode_h264(params["file_input"], params["file_output"])
+            if "jpg" in params["format"]:
+                extract_jpg(
+                    params["file_input"],
+                    params["file_output"],
+                    params["delay"]
+                )
+
         else:
             logging.info("input file desn't exist, bye bye")
             sys.exit(2)