From 8b4e622aef80b5e3e55b813c3f71f044d82893be Mon Sep 17 00:00:00 2001
From: Leo Vasanko <git@vasanko.com>
Date: Fri, 1 May 2026 22:51:58 +0000
Subject: [PATCH] preview: remove ffprobe fallback and unused json import

_get_image_dimensions now relies solely on pyvips header reading.
If pyvips cannot read the header the function returns None and the
caller encodes at full resolution rather than falling back to ffprobe.
Remove unused stdlib json import.
---
 cista/preview.py | 29 ++---------------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/cista/preview.py b/cista/preview.py
index 4b93e81..abe042c 100644
--- a/cista/preview.py
+++ b/cista/preview.py
@@ -2,7 +2,6 @@ import asyncio
 import contextlib
 import gc
 import io
-import json
 import mimetypes
 import struct
 import subprocess
@@ -706,37 +705,13 @@ def _get_image_dimensions(path: Path) -> tuple[int, int] | None:
     """Probe image dimensions.
 
     pyvips can read the header of most formats (including HEIC) without
-    fully decoding the image.  ffprobe is used as a fallback.
+    fully decoding the image.
     """
     try:
         img = pyvips.Image.new_from_file(str(path))
         return img.width, img.height
     except pyvips.error.Error:
-        pass
-    try:
-        result = subprocess.run(
-            [
-                "ffprobe",
-                "-v",
-                "error",
-                "-select_streams",
-                "v:0",
-                "-show_entries",
-                "stream=width,height",
-                "-of",
-                "csv=s=x:p=0",
-                str(path),
-            ],
-            capture_output=True,
-            text=True,
-            check=True,
-        )
-        parts = result.stdout.strip().split("x")
-        if len(parts) == 2:
-            return int(parts[0]), int(parts[1])
-    except Exception:
-        pass
-    return None
+        return None
 
 
 def _image_via_ffmpeg(path: Path, maxsize: int, quality: int) -> bytes: