From 59463a345784eda01a5ce9f158dd3d1ffb9a821d Mon Sep 17 00:00:00 2001
From: Jakub Trllo <jakub.trllo@gmail.com>
Date: Wed, 3 Aug 2022 16:54:53 +0200
Subject: [PATCH] add new function to determine fps value

---
 openpype/lib/__init__.py    |  2 ++
 openpype/lib/transcoding.py | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/openpype/lib/__init__.py b/openpype/lib/__init__.py
index 31cd5e7510..3d3e425a86 100644
--- a/openpype/lib/__init__.py
+++ b/openpype/lib/__init__.py
@@ -115,6 +115,7 @@ from .transcoding import (
     get_ffmpeg_codec_args,
     get_ffmpeg_format_args,
     convert_ffprobe_fps_value,
+    convert_ffprobe_fps_to_float,
 )
 from .avalon_context import (
     CURRENT_DOC_SCHEMAS,
@@ -287,6 +288,7 @@ __all__ = [
     "get_ffmpeg_codec_args",
     "get_ffmpeg_format_args",
     "convert_ffprobe_fps_value",
+    "convert_ffprobe_fps_to_float",
 
     "CURRENT_DOC_SCHEMAS",
     "PROJECT_NAME_ALLOWED_SYMBOLS",
diff --git a/openpype/lib/transcoding.py b/openpype/lib/transcoding.py
index ee9a0f08de..60d5d3ed4a 100644
--- a/openpype/lib/transcoding.py
+++ b/openpype/lib/transcoding.py
@@ -938,3 +938,40 @@ def convert_ffprobe_fps_value(str_value):
         fps = int(fps)
 
     return str(fps)
+
+
+def convert_ffprobe_fps_to_float(value):
+    """Convert string value of frame rate to float.
+
+    Copy of 'convert_ffprobe_fps_value' which raises exceptions on invalid
+    value, does not convert value to string and does not return "Unknown"
+    string.
+
+    Args:
+        value (str): Value to be converted.
+
+    Returns:
+        Float: Converted frame rate in float. If divisor in value is '0' then
+            '0.0' is returned.
+
+    Raises:
+        ValueError: Passed value is invalid for conversion.
+    """
+
+    if not value:
+        raise ValueError("Got empty value.")
+
+    items = value.split("/")
+    if len(items) == 1:
+        return float(items[0])
+
+    if len(items) > 2:
+        raise ValueError((
+            "FPS expression contains multiple dividers \"{}\"."
+        ).format(value))
+
+    dividend = float(items.pop(0))
+    divisor = float(items.pop(0))
+    if divisor == 0.0:
+        return 0.0
+    return dividend / divisor