🎬🪡AGSoft Video Concatenate Plus

Concatenate without the 'everything must match' lecture

By Art-xmaster·Created about a year ago·Updated a day ago· 24

video_path
duration_seconds
duration_timecode
file_size_mb
width
height
fps
frames_est

◄output_nameoutput_video_plus.mp4►

◄output_path►

◄inputs_count2►

◄transition_typefade►

◄transition_duration1.0►

◄audio_modeauto►

◄encoder_modeauto►

◄quality_presetbalanced►

◄output_fpsauto►

◄resize_modefirst_clip►

◄fit_modeletterbox►

◄custom_width0►

◄custom_height0►

◄auto_coloroff►

◄video_fade_in0.0►

◄video_fade_out0.0►

◄audio_fade_in0.0►

◄audio_fade_out0.0►

◄audio_loudnormoff►

🎬🪡AGSoft Video Concatenate Plus is the sibling that re-encodes. Where the plain Video Concatenate stream-copies clips and demands they all match, this one happily takes a pile of clips of different sizes, frame rates, and codecs, normalizes them, and produces a single consistent file - with transitions, fades, and audio handling on top. It's slower than a stream copy, obviously, but it's the "just make it work" node.

Set inputs_count and the node grows that many video_N inputs. Then the fields that do the real work:

transition_type / transition_duration - a global transition between clips (default fade, duration 1s; 0 = hard cut). This is the biggest reason to pick Plus over the plain version.
resize_mode (default first_clip) - how the output resolution is chosen, with fit_mode (letterbox / crop / stretch) deciding how clips that don't match the target are fitted, plus custom_width/custom_height for hand-picked output.
output_fps - default auto uses the first clip's frame rate; pick a common one (24, 30, 60...) to force consistency.
audio_mode - default auto keeps each clip's original audio and pads missing audio with silence. The pack's fuller audio tools (loudnorm etc.) live on the audio concatenator.
auto_color - an experimental per-clip color normalization. It's labeled experimental for a reason; leave it off unless clips visibly clash.
video_fade_in / video_fade_out, audio_fade_in / audio_fade_out - global fades for the whole result, nice for a finished piece that should fade up from black.
audio_loudnorm - EBU R128 normalization on the final audio, if you want every clip's sound leveled too.
encoder_mode - auto uses NVENC when available, otherwise CPU; force nvenc or cpu when you know your hardware. quality_preset - fast / balanced / quality.

Outputs

The standard pack set: video_path (STRING), duration_seconds, duration_timecode, file_size_mb, width, height, fps, frames_est. If output_path is empty, the result lands in ComfyUI/output.

Install

Part of the comfyui-AGSoft pack. ComfyUI Manager → search "comfyui-AGSoft" → Install → restart, or:

cd ComfyUI/custom_nodes
git clone https://github.com/Art-xmaster/comfyui-AGSoft

Restart. No model downloads; the node drives the bundled FFmpeg (or a system ffmpeg on PATH).

Where people get burned

If you force nvenc on a machine without a working NVENC build, you'll get an encoder error - that's the classic one. Drop to auto or cpu and it recovers. Otherwise, this is a forgiving node: it's the one you reach for when clips were generated at different times and nothing matches, and you'd rather render once than hand-normalize six inputs.

CategoryAGSoft/Video

Inputs (19)

Name	Type	Default	Description
output_name	STRING	output_video_plus.mp4	Output filename. The extension is kept as entered (.mp4 by default). --- Имя итогового файла. Расширение сохраняется как введено (по умолчанию .mp4).
output_path	STRING		Output directory. If empty, ComfyUI/output is used. --- Папка сохранения. Если пусто, используется ComfyUI/output.
inputs_count	COMBO	2	Number of video clips to concatenate. --- Количество клипов для склейки.
transition_type	COMBO	fade	Global transition type. cut = no transition (hard cut). random = random transition at each junction. --- Глобальный тип перехода. cut = без перехода (жёсткая склейка). random = случайный переход на каждом стыке.
transition_duration	FLOAT	1.00–10	Global transition duration in seconds. 0 = cut mode. Automatically clamped if longer than a clip. --- Глобальная длительность перехода в секундах. 0 = режим cut. Автоматически ограничивается, если длиннее клипа.
audio_mode	COMBO	auto	auto = keep original audio, fill missing audio with silence. mute = silent output. --- auto = сохранять оригинальный звук, отсутствующий заменять тишиной. mute = итоговое видео без звука.
encoder_mode	COMBO	auto	auto = use NVENC if available, otherwise CPU. nvenc = force NVIDIA NVENC. cpu = force libx264. --- auto = NVENC, если доступен, иначе CPU. nvenc = принудительно NVIDIA NVENC. cpu = принудительно libx264.
quality_preset	COMBO	balanced	Encoding quality preset (speed vs quality trade-off). --- Пресет качества кодирования (баланс скорости и качества).
output_fps	COMBO	auto	Common output FPS. auto = use FPS from the first clip. --- Общий FPS результата. auto = FPS первого клипа.
resize_mode	COMBO	first_clip	How to choose the output resolution. first_clip = first clip size. max_size/min_size = extremes. custom = use custom_width/custom_height. --- Как выбирать разрешение результата. first_clip = по первому клипу. max_size/min_size = экстремумы. custom = использовать custom_width/custom_height.
fit_mode	COMBO	letterbox	letterbox = fit with black bars. crop = fill and crop center. stretch = stretch to output size. --- letterbox = вписать с чёрными полосами. crop = заполнить и обрезать центр. stretch = растянуть.
custom_width	INT	00–8192	Custom width, used only when resize_mode = custom. 0 = fallback. --- Кастомная ширина, только при resize_mode = custom. 0 = fallback.
custom_height	INT	00–8192	Custom height, used only when resize_mode = custom. 0 = fallback. --- Кастомная высота, только при resize_mode = custom. 0 = fallback.
auto_color	COMBO	off	Experimental auto color normalization per clip. --- Экспериментальная авто-нормализация цвета для каждого клипа.
video_fade_in	FLOAT	0.00–60	Global video fade-in duration in seconds (start of the result). --- Длительность глобального появления видео в секундах (начало результата).
video_fade_out	FLOAT	0.00–60	Global video fade-out duration in seconds (end of the result). --- Длительность глобального затухания видео в секундах (конец результата).
audio_fade_in	FLOAT	0.00–60	Global audio fade-in duration in seconds. --- Длительность глобального появления звука в секундах.
audio_fade_out	FLOAT	0.00–60	Global audio fade-out duration in seconds. --- Длительность глобального затухания звука в секундах.
audio_loudnorm	COMBO	off	Apply EBU R128 loudness normalization to the final audio. --- Применить нормализацию громкости EBU R128 к итоговому звуку.

Outputs (8)

Name	Type	Description
video_path	STRING	—
duration_seconds	FLOAT	—
duration_timecode	STRING	—
file_size_mb	FLOAT	—
width	INT	—
height	INT	—
fps	FLOAT	—
frames_est	INT	—