Ethanfel/ComfyUI-Tween
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Support relative paths and robust preview in TweenConcatVideos

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Relative output_directory values are now resolved against ComfyUI's
output directory. Video preview is skipped with a warning when the
output path is outside the output tree (frontend can't serve it).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ethanfel
2026-02-12 23:30:48 +01:00
parent aa85f523f2
commit d935462e24
1 changed files with 23 additions and 20 deletions
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31
nodes.py
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@@ -360,7 +360,8 @@ class TweenConcatVideos:
"output_directory": ("STRING", {
"default": "",
"tooltip": "Directory containing the segment video files. "
"Leave empty to use ComfyUI's default output directory.",
"Leave empty to use ComfyUI's default output directory. "
"Relative paths are resolved from the output directory.",
}),
"filename_prefix": ("STRING", {
"default": "segment",
@@ -406,10 +407,13 @@ class TweenConcatVideos:
return ffmpeg_path
def concat(self, model, output_directory, filename_prefix, output_filename, delete_segments, preview):
# Resolve output directory
# Resolve output directory — empty or relative paths are relative to ComfyUI output
comfy_output = folder_paths.get_output_directory()
out_dir = output_directory.strip()
if not out_dir:
out_dir = folder_paths.get_output_directory()
out_dir = comfy_output
elif not os.path.isabs(out_dir):
out_dir = os.path.join(comfy_output, out_dir)
if not os.path.isdir(out_dir):
raise ValueError(f"Output directory does not exist: {out_dir}")
@@ -481,24 +485,23 @@ class TweenConcatVideos:
result = {"result": (output_path,)}
if preview:
filename = os.path.basename(output_path)
# Determine subfolder relative to ComfyUI output dir
comfy_output = folder_paths.get_output_directory()
if os.path.abspath(out_dir) == os.path.abspath(comfy_output):
subfolder = ""
else:
try:
subfolder = os.path.relpath(out_dir, comfy_output)
except ValueError:
subfolder = ""
# Preview only works when the file is inside ComfyUI's output tree
abs_out = os.path.abspath(out_dir)
abs_comfy = os.path.abspath(comfy_output)
if abs_out.startswith(abs_comfy + os.sep) or abs_out == abs_comfy:
subfolder = os.path.relpath(abs_out, abs_comfy) if abs_out != abs_comfy else ""
result["ui"] = {
"gifs": [{
"filename": filename,
"filename": os.path.basename(output_path),
"subfolder": subfolder,
"type": "output",
"format": "video/mp4",
}]
}
else:
logger.warning(
f"Video preview skipped: {out_dir} is outside ComfyUI output directory"
)
return result