全网首发_api方式flashvsr批量视频高清增强修复教程

近半月研究，研究出用 ComfyUi API 的方式批量增强视频的方法，只需要简单的工作流搭配使用脚本即可，其他工作流若有批量需求，亦可如此。

应该是全网首创这种方法实现批量任务。

环境准备

安装 CUDA 12.8。

安装 ComfyUI，可以使用整合包比较方便，比如 B 站 UP 主离离原上咩或者秋叶 aki 的，确认 Python 3.12。

安装 flashvsr 相关节点和依赖库

安装节点

lihaoyun6/ComfyUI-FlashVSR_Ultra_Fast: Real-Time Diffusion-Based Streaming Video Super-Resolution / 基于 Diffusion 架构的实时视频流超分模型

修改节点代码，使之支持 1 倍修复。

修改 nodes.py 中的 413 和 504 行，从 2 改为 1。

安装依赖

进入 comfyui 的 python 目录。进入 {替换成你自己的comfyui根目录}\python_embeded

python -m pip install torch==2.7.0 torchvision==0.22.0 torchaudio==2.7.0 --index-url https://download.pytorch.org/whl/cu128

# 轮子在此处下载 https://github.com/lihaoyun6/Block-Sparse-Attention/releases/tag/v0.0.1
# Nvidia 50系显卡可不安装
# 放到当前目录运行，或者自己改下实际路径。
python -m pip install .\block_sparse_attn-0.0.1+cu128torch2.7cxx11abiFALSE-cp312-cp312-win_amd64.whl
python -m pip install .\flash_attn-2.8.1+cu128torch2.7cxx11abiFALSE-cp312-cp312-win_amd64.whl

python -m pip install flash-attention --no-build-isolation

python -m pip install modelscope -i https://mirrors.aliyun.com/pypi/simple/

模型

flashvsr-v1.1

镜像链接：
JunhaoZhuang/FlashVSR-v1.1 at main

放到 comfyui 的 model 目录下。

{替换成你自己的路径}\ComfyUI\models\FlashVSR-v1.1

vae

Comfy-Org/Wan_2.2_ComfyUI_Repackaged at main
{替换成你自己的路径}\ComfyUI\models\vae\Wan_2.2\wan2.2_vae.safetensors

工作流

将以下代码保存为 flahvsr-mix.json 文件，放到 {替换成你自己的路径}\ComfyUI\users\default\workflows 路径下。

{"id":"c02fa9ca-4e2a-482a-bce0-45d21af8aa21","revision":0,"last_node_id":34,"last_link_id":43,"nodes":[{"id":21,"type":"ImageFromBatch","pos":[-10332.037845020597,582.3260346013175],"size":[210,82],"flags":{"collapsed":false},"order":2,"mode":0,"inputs":[{"label":"图像","localized_name":"图像","name":"image","type":"IMAGE","link":25},{"localized_name":"批次索引","name":"batch_index","type":"INT","widget":{"name":"batch_index"},"link":null},{"localized_name":"长度","name":"length","type":"INT","widget":{"name":"length"},"link":null}],"outputs":[{"label":"图像","localized_name":"图像","name":"IMAGE","type":"IMAGE","links":[24]}],"properties":{"cnr_id":"comfy-core","ver":"0.3.75","Node name for S&R":"ImageFromBatch","widget_ue_connectable":{}},"widgets_values":[38,1]},{"id":22,"type":"VHS_VideoInfoLoaded","pos":[-10030.48674091957,593.8389078291776],"size":[186,106],"flags":{"collapsed":false},"order":4,"mode":0,"inputs":[{"label":"视频信息","localized_name":"video_info","name":"video_info","type":"VHS_VIDEOINFO","link":26}],"outputs":[{"label":"FPS🟦","localized_name":"fps🟦","name":"fps🟦","type":"FLOAT","links":[42]},{"label":"帧数🟦","localized_name":"frame_count🟦","name":"frame_count🟦","type":"INT","links":[]},{"label":"时长🟦","localized_name":"duration🟦","name":"duration🟦","type":"FLOAT","links":[]},{"label":"宽度🟦","localized_name":"width🟦","name":"width🟦","type":"INT","links":[]},{"label":"高度🟦","localized_name":"height🟦","name":"height🟦","type":"INT","links":[]}],"properties":{"cnr_id":"comfyui-videohelpersuite","ver":"1.7.8","Node name for S&R":"VHS_VideoInfoLoaded"},"widgets_values":{}},{"id":20,"type":"easy imageSize","pos":[-9644.242784423812,784.5696477830178],"size":[210,108],"flags":{"collapsed":false},"order":5,"mode":0,"inputs":[{"label":"图像","localized_name":"图像","name":"image","type":"IMAGE","link":24}],"outputs":[{"label":"宽度","localized_name":"宽度","name":"width_int","type":"INT","links":[22]},{"label":"高度","localized_name":"高度","name":"height_int","type":"INT","links":[23]}],"properties":{"cnr_id":"comfyui-easy-use","ver":"1.3.4","Node name for S&R":"easy imageSize","widget_ue_connectable":{}},"widgets_values":["Width: 800 , Height: 600"]},{"id":34,"type":"VHS_VideoCombine","pos":[-8952.327956636696,103.25977773732329],"size":[563.2943630166619,334],"flags":{},"order":8,"mode":0,"inputs":[{"label":"图像","localized_name":"images","name":"images","type":"IMAGE","link":41},{"label":"音频","localized_name":"audio","name":"audio","shape":7,"type":"AUDIO","link":null},{"label":"批次管理","localized_name":"meta_batch","name":"meta_batch","shape":7,"type":"VHS_BatchManager","link":null},{"localized_name":"vae","name":"vae","shape":7,"type":"VAE","link":null},{"localized_name":"帧率","name":"frame_rate","type":"FLOAT","widget":{"name":"frame_rate"},"link":42},{"localized_name":"循环次数","name":"loop_count","type":"INT","widget":{"name":"loop_count"},"link":null},{"localized_name":"文件名前缀","name":"filename_prefix","type":"STRING","widget":{"name":"filename_prefix"},"link":null},{"localized_name":"格式","name":"format","type":"COMBO","widget":{"name":"format"},"link":null},{"localized_name":"Ping-Pong","name":"pingpong","type":"BOOLEAN","widget":{"name":"pingpong"},"link":null},{"localized_name":"保存到输出文件夹","name":"save_output","type":"BOOLEAN","widget":{"name":"save_output"},"link":null},{"name":"pix_fmt","type":["yuv420p","yuv420p10le"],"widget":{"name":"pix_fmt"},"link":null},{"name":"crf","type":"INT","widget":{"name":"crf"},"link":null},{"label":"保存元数据","localized_name":"保存元数据","name":"save_metadata","type":"BOOLEAN","widget":{"name":"save_metadata"},"link":null},{"name":"trim_to_audio","type":"BOOLEAN","widget":{"name":"trim_to_audio"},"link":null}],"outputs":[{"label":"文件名","localized_name":"Filenames","name":"Filenames","type":"VHS_FILENAMES","links":[]}],"properties":{"cnr_id":"comfyui-videohelpersuite","ver":"3234937ff5f3ca19068aaba5042771514de2429d","Node name for S&R":"VHS_VideoCombine"},"widgets_values":{"frame_rate":8,"loop_count":0,"filename_prefix":"batch_upscale","format":"video/h264-mp4","pix_fmt":"yuv420p","crf":19,"save_metadata":true,"trim_to_audio":false,"pingpong":false,"save_output":true,"videopreview":{"hidden":false,"paused":false,"params":{"filename":"batch_upscale_00004.mp4","subfolder":"","type":"output","format":"video/h264-mp4","frame_rate":25,"workflow":"batch_upscale_00004.png","fullpath":"/root/comfy/ComfyUI/output/batch_upscale_00004.mp4"}}}},{"id":25,"type":"VHS_LoadVideo","pos":[-10495.367613102837,198.3739583734827],"size":[426.0032958984375,310],"flags":{"collapsed":false},"order":0,"mode":0,"inputs":[{"label":"批次管理","localized_name":"meta_batch","name":"meta_batch","shape":7,"type":"VHS_BatchManager","link":null},{"label":"vae","localized_name":"vae","name":"vae","shape":7,"type":"VAE","link":null},{"localized_name":"视频","name":"video","type":"COMBO","widget":{"name":"video"},"link":null},{"localized_name":"强制帧率","name":"force_rate","type":"FLOAT","widget":{"name":"force_rate"},"link":null},{"localized_name":"custom_width","name":"custom_width","type":"INT","widget":{"name":"custom_width"},"link":null},{"localized_name":"custom_height","name":"custom_height","type":"INT","widget":{"name":"custom_height"},"link":null},{"localized_name":"帧数读取上限","name":"frame_load_cap","type":"INT","widget":{"name":"frame_load_cap"},"link":null},{"localized_name":"跳过前X帧","name":"skip_first_frames","type":"INT","widget":{"name":"skip_first_frames"},"link":null},{"localized_name":"模选","name":"select_every_nth","type":"INT","widget":{"name":"select_every_nth"},"link":null},{"localized_name":"format","name":"format","shape":7,"type":"COMBO","widget":{"name":"format"},"link":null}],"outputs":[{"label":"图像","localized_name":"图像","name":"IMAGE","type":"IMAGE","slot_index":0,"links":[25,34]},{"label":"帧计数","localized_name":"frame_count","name":"frame_count","type":"INT","slot_index":1,"links":[]},{"label":"音频","localized_name":"audio","name":"audio","type":"AUDIO","links":[]},{"label":"视频信息","localized_name":"video_info","name":"video_info","type":"VHS_VIDEOINFO","links":[26]}],"properties":{"cnr_id":"comfyui-videohelpersuite","ver":"3a96e87951f498ebcbb6d5bf685f6b0014c8f591","Node 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1.mp4","force_rate":0,"custom_width":0,"select_every_nth":1,"frame_load_cap":0,"format":"video/mp4","skip_first_frames":0,"type":"input"}}},"color":"#3c3c83","bgcolor":"rgba(24,24,27,.9)"},{"id":29,"type":"FlashVSRInitPipe","pos":[-9738.626953546307,-58.410855612817784],"size":[418.89400622109815,215.34911779913296],"flags":{},"order":1,"mode":0,"inputs":[{"label":"model","localized_name":"model","name":"model","type":"COMBO","widget":{"name":"model"},"link":null},{"label":"mode","localized_name":"mode","name":"mode","type":"COMBO","widget":{"name":"mode"},"link":null},{"label":"alt_vae","localized_name":"alt_vae","name":"alt_vae","type":"COMBO","widget":{"name":"alt_vae"},"link":null},{"label":"force_offload","localized_name":"force_offload","name":"force_offload","type":"BOOLEAN","widget":{"name":"force_offload"},"link":null},{"label":"precision","localized_name":"precision","name":"precision","type":"COMBO","widget":{"name":"precision"},"link":null},{"label":"device","localized_name":"device","name":"device","type":"COMBO","widget":{"name":"device"},"link":null},{"label":"attention_mode","localized_name":"attention_mode","name":"attention_mode","type":"COMBO","widget":{"name":"attention_mode"},"link":null}],"outputs":[{"label":"pipe","localized_name":"pipe","name":"pipe","type":"PIPE","links":[35]}],"properties":{"aux_id":"lihaoyun6/ComfyUI-FlashVSR_Ultra_Fast","Node name for S&R":"FlashVSRInitPipe","cnr_id":"flashvsr_ultra_fast","ver":"9c4f26042c5d132903129909031c58cb36ca815e"},"widgets_values":["FlashVSR-v1.1","tiny-long","none",true,"fp16","auto","block_sparse_attention"]},{"id":28,"type":"FlashVSRNodeAdv","pos":[-9761.780345551851,266.9198658597777],"size":[427.40473930103474,398.663737790725],"flags":{},"order":6,"mode":0,"inputs":[{"label":"pipe","localized_name":"pipe","name":"pipe","type":"PIPE","link":35},{"label":"frames","localized_name":"frames","name":"frames","type":"IMAGE","link":36},{"label":"scale","localized_name":"scale","name":"scale","type":"INT","widget":{"name":"scale"},"link":null},{"label":"color_fix","localized_name":"color_fix","name":"color_fix","type":"BOOLEAN","widget":{"name":"color_fix"},"link":null},{"label":"tiled_vae","localized_name":"tiled_vae","name":"tiled_vae","type":"BOOLEAN","widget":{"name":"tiled_vae"},"link":null},{"label":"tiled_dit","localized_name":"tiled_dit","name":"tiled_dit","type":"BOOLEAN","widget":{"name":"tiled_dit"},"link":null},{"label":"tile_size","localized_name":"tile_size","name":"tile_size","type":"INT","widget":{"name":"tile_size"},"link":null},{"label":"tile_overlap","localized_name":"tile_overlap","name":"tile_overlap","type":"INT","widget":{"name":"tile_overlap"},"link":null},{"label":"unload_dit","localized_name":"unload_dit","name":"unload_dit","type":"BOOLEAN","widget":{"name":"unload_dit"},"link":null},{"label":"sparse_ratio","localized_name":"sparse_ratio","name":"sparse_ratio","type":"FLOAT","widget":{"name":"sparse_ratio"},"link":null},{"label":"kv_ratio","localized_name":"kv_ratio","name":"kv_ratio","type":"FLOAT","widget":{"name":"kv_ratio"},"link":null},{"label":"local_range","localized_name":"local_range","name":"local_range","type":"INT","widget":{"name":"local_range"},"link":null},{"label":"seed","localized_name":"seed","name":"seed","type":"INT","widget":{"name":"seed"},"link":null}],"outputs":[{"label":"image","localized_name":"image","name":"image","type":"IMAGE","links":[38]}],"properties":{"aux_id":"lihaoyun6/ComfyUI-FlashVSR_Ultra_Fast","Node 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批量增强视频

使用工作流 API 方式来实现不限时长视频和多个视频增强。

API 模板文件

flashvsr_video/api_flashvsr_mix.json at main · OHLIA/flashvsr_video

可能不同电脑上节点 ID 不一样，大家也可以自己导出 API 模板文件，按着修改。

脚本

flashvsr_video/api_flashvsr_mix.json at main · OHLIA/flashvsr_video

脚本使用

D:\ai\flashvsr_video>python flashvsr_mix.py
usage: flashvsr_mix.py [-h] -i INPUT [--template TEMPLATE] [--frames-per-batch FRAMES_PER_BATCH]
                       [--attn-mode {block_sparse_attention,sparse_sage_attention}] [--tiled-dit]
                       [--tile-size TILE_SIZE] [--tile-overlap TILE_OVERLAP] [--scale SCALE]
                       [--gpu GPU] [--frames-pre FRAMES_PRE] [--batch-pre BATCH_PRE]
                       [--auto-load-state] [--save-state] [--no-save-state] [--max-workers MAX_WORKERS]
                       [--output-dir OUTPUT_DIR] [--timeout TIMEOUT] [--pattern PATTERN]
                       [--server SERVER] [--log-dir LOG_DIR] [--skip-pymedia-check]
flashvsr_mix.py: error: the following arguments are required: -i/--input

解释参数

[-h] #帮助文档。

[--template TEMPLATE] #api范本文件，默认 api-flashvsr-mix.json
[--attn-mode {block_sparse_attention,sparse_sage_attention}] #可选。稀疏方式。50系设置 sparse_sage_attention，其他显卡默认，不用设置。
[--scale SCALE] #增强倍数。默认2倍。

[--INPUT [file or dir] ] #必填。输入文件或者目录。
[--output-dir OUTPUT_DIR] #可选，输出文件夹，默认 comfyui 自身的 output 文件夹。需要降低 comfyui安全等级才能成功设置，不然文件不输出，非必须不要设置。
[--pattern PATTERN] #可选。默认文件名前缀为 flashvsr_ 。

[--frames-per-batch FRAMES_PER_BATCH] #可选。每次跑的帧数，也就是切片帧数。不设置则整个视频跑。举例，增强到1080P，150帧，需要 32G 内存 33.3G 显存占用。
[--frames-pre FRAMES_PRE] #可选。已经处理过的帧数。。
[--batch-pre BATCH_PRE] #可选。已经处理的批次，方便区分切片顺序。


[--tiled-dit] #可选。将画面切块增强，降低显存使用，但是处理时间边长。
[--tile-size TILE_SIZE]#可选。搭配--tiled-dit使用。分块大小，需要为 32 的倍数。
[--tile-overlap TILE_OVERLAP] #可选。搭配--tiled-dit，--tile-size使用。分块重叠大小，需要为 8 的倍数。

[--timeout TIMEOUT] #可选。每批次超时时间，默认600秒。如果是分块处理，请自行设置更长时间。

[--gpu GPU] #可选。设置使用的 GPU 。默认第一张 CUDA 设备。
[--max-workers MAX_WORKERS] #可选。并发工作。默认1.

[--auto-load-state] #可选。读取上次状态，方便断点继续。
[--save-state] #可选。默认保存此次状态，方便断点继续。
[--no-save-state] #可选。不保存状态。
[--log-dir LOG_DIR] #可选。设置日志文件路径。默认为当前运行路径。

[--server SERVER] #可选。api 地址，默认 http://127.0.0.1:8188。
[--skip-pymedia-check] #可选。跳过 pymedia，改用 ffmpeg 获取文件帧率等基础信息。

实例

使用 1 倍修复，也就是只增强画质，不超分。

默认输出文件按切片帧数切块，无音频。

文件名格式默认 flashvsr_源文件名_批次_起始帧数+当前文件帧数_序号.mp4。

最后使用 mkvtoolnix 合并多个视频和原音频。

其他辅助工具

内存清理工具 MemReduct

Download -- Mem Reduct Download and Install

按使用率和时间来清理内存，跑 flashvsr 有内存泄漏的问题。

MKVTOOLnix

MKVToolNix Downloads -- Matroska tools for Linux/Unix and Windows

用以合并视频和音频。

视频对比工具 Video Compare GUI

TetzkatLipHoka/VideoCompareGUI: GUI for the Video-Compare Tool

---

参考资料

flashvsr 视频高清之路-工作流及教程

FlashVSR-1.1 视高清放大，Block-Sparse-Attention 安装，ComfyUI-FlashVSR_Ultra_Fast

不限视频帧数，视频本地 4 倍高清放大，基于FlashVSR

顶级的视频高清放大工具 FlashVSR | aibyte

GitHub - OpenImagingLab/FlashVSR: Towards Real-Time Diffusion-Based Streaming Video Super-Resolution --- An efficient one-step diffusion framework for streaming VSR with locality-constrained sparse attention and a tiny conditional decoder.