#45 Parse other duration with ffprobe if seconds format not available

common_py/src/videoag_common/ffmpeg/ffprobe.py

 import json
 import math
+import re
 import subprocess
 from dataclasses import dataclass
 from pathlib import Path
@@ -32,6 +33,33 @@ class FFProbeImageStream(FFProbeStream):
     height: int
 
 
+def _parse_duration_string_human(val: str) -> int:
+    match = re.match("(?>(?>([0-9]+):)?([0-9]+):)?([0-9]+)(?>\\.([0-9]+))?", val)
+    if match is None:
+        raise ValueError(f"Unable to parse duration: {val}")
+    hours = int(match.group(1) or "0")
+    minutes = int(match.group(2) or "0")
+    seconds = int(match.group(3))
+    nanos = int(match.group(4) or "0")
+    return math.ceil(
+        (hours * 60 + minutes) * 60 + seconds
+        + nanos / math.pow(10, 9)
+    )
+
+
+def _get_stream_duration_sec(stream: dict):
+    duration_string = stream.get("duration")
+    if duration_string is not None:
+        return math.ceil(float(stream["duration"]))
+    tags = stream.get("tags")
+    if tags is not None:
+        duration_string = tags.get("DURATION")
+        if duration_string is not None:
+            return _parse_duration_string_human(duration_string)
+    
+    raise Exception(f"Unable to get duration from stream: {stream}")
+
+
 class FFProbe:
     
     def __init__(self):
@@ -76,7 +104,7 @@ class FFProbe:
                     height=int(stream["height"]),
                     frame_rate_numerator=int(frame_rate_num),
                     frame_rate_denominator=int(frame_rate_den),
-                    duration_sec=math.ceil(float(stream["duration"]))
+                    duration_sec=_get_stream_duration_sec(stream),
                 )
                 self.video_streams.append(probe_stream)
             elif stream["codec_type"] == "audio":
@@ -84,7 +112,7 @@ class FFProbe:
                     codec=stream["codec_name"],
                     sample_rate=int(stream["sample_rate"]),
                     channel_count=int(stream["channels"]),
-                    duration_sec=math.ceil(float(stream["duration"]))
+                    duration_sec=_get_stream_duration_sec(stream),
                 )
                 self.audio_streams.append(probe_stream)
             else: