ipcam_server: add DVRScanInvalidTimecodes exception type, change handling logic

1 files changed, 8 insertions, 2 deletions

diff --git a/src/home/camera/util.py b/src/home/camera/util.py
index 5f18a1f..39bfcd3 100644
--- a/src/home/camera/util.py
+++ b/src/home/camera/util.py
@@ -63,9 +63,11 @@ async def ffmpeg_cut(input: str,
 
 
 def dvr_scan_timecodes(timecodes: str) -> list[tuple[int, int]]:
+    tc_backup = timecodes
+
     timecodes = timecodes.split(',')
     if len(timecodes) % 2 != 0:
-        raise ValueError('invalid number of timecodes')
+        raise DVRScanInvalidTimecodes(f'invalid number of timecodes. input: {tc_backup}')
 
     timecodes = list(map(time2seconds, timecodes))
     timecodes = list(chunks(timecodes, 2))
@@ -73,7 +75,7 @@ def dvr_scan_timecodes(timecodes: str) -> list[tuple[int, int]]:
     # sort out invalid fragments (dvr-scan returns them sometimes, idk why...)
     timecodes = list(filter(lambda f: f[0] < f[1], timecodes))
     if not timecodes:
-        raise ValueError('no valid timecodes')
+        raise DVRScanInvalidTimecodes(f'no valid timecodes. input: {tc_backup}')
 
     # https://stackoverflow.com/a/43600953
     timecodes.sort(key=lambda interval: interval[0])
@@ -88,6 +90,10 @@ def dvr_scan_timecodes(timecodes: str) -> list[tuple[int, int]]:
     return merged
 
 
+class DVRScanInvalidTimecodes(Exception):
+    pass
+
+
 def has_handle(fpath):
     for proc in psutil.process_iter():
         try: