ComfyUI-CustomNode/nodes/videocut.py

import glob
import os
import shutil
import traceback
import uuid
from datetime import datetime

import ffmpy
import torchaudio
import torchvision.io

video_extensions = ['webm', 'mp4', 'mkv', 'gif', 'mov']



class VideoCut:
    """FFMPEG视频剪辑"""

    @classmethod
    def INPUT_TYPES(s):
        return {
            "required": {
                "video_path": ("STRING",{"placeholder": "X://insert/path/here.mp4", "vhs_path_extensions": video_extensions}),
                "start": ("STRING", {"default": "00:00:00.000"}),
                "end": ("STRING", {"default": "00:00:10.000"}),
            },
        }

    RETURN_TYPES = ("IMAGE","AUDIO")
    RETURN_NAMES = ("视频帧","音频")

    FUNCTION = "cut"

    # OUTPUT_NODE = False

    CATEGORY = "不忘科技-自定义节点🚩"

    def cut(self, video_path, start, end):
        # 原文件名
        origin_fname = ".".join(video_path.split(os.sep)[-1].split(".")[:-1])
        # 新文件名 复制改名适配ffmpeg
        uid = uuid.uuid1()
        temp_fname = os.sep.join(
            [
                *video_path.split(os.sep)[:-1],
                "%s.%s" % (str(uid), video_path.split(".")[-1]),
            ]
        )
        try:
            shutil.copy(video_path, temp_fname)
        except:
            return ("请检查输入文件权限",)
        video_path = temp_fname
        # 组装输出文件名
        output_name = ".".join(
            [
                *video_path.split(os.sep)[-1].split(".")[:-2],
                video_path.split(os.sep)[-1].split(".")[-2]
                + "_output_%s" % datetime.now().strftime("%Y%m%d_%H%M%S"),
                video_path.split(os.sep)[-1].split(".")[-1],
            ]
        )
        output = (
            os.sep.join([*video_path.split(os.sep)[:-1], output_name])
            .replace(
                os.sep.join(["ComfyUI", "input"]), os.sep.join(["ComfyUI", "output"])
            )
            .replace(" ", "")
        )
        # 调用ffmpeg
        ff = ffmpy.FFmpeg(
            inputs={video_path: None},
            outputs={
                output: [
                    "-ss",
                    start,
                    "-to",
                    end,
                    "-c:v",
                    "libx264",
                    "-c:a",
                    "libmp3lame",
                    "-reset_timestamps",
                    "1",
                    "-sc_threshold",
                    "0",
                    "-g",
                    "1"
                    "-force_key_frames",
                    "expr:gte(t, n_forced * 1)",
                    "-v",
                    "-8"
                ]
            },
        )
        print(ff.cmd)
        ff.run()
        # uuid填充改回原文件名
        try:
            os.remove(temp_fname)
        except:
            pass
        try:
            files = glob.glob(output.replace("%03d", "*"))
            for file in files:
                shutil.move(file, file.replace(str(uid), origin_fname))
            files = glob.glob(
                output.replace(str(uid), origin_fname).replace("%03d", "*")
            )
        except:
            files = glob.glob(output.replace("%03d", "*"))
            traceback.print_exc()
        video, audio, info = torchvision.io.read_video(files[0])
        video.mul_(255)
        audio.unsqueeze_(0)
        try:
            os.remove(files[0])
        except:
            pass
        return (video, {"waveform":audio,"sample_rate":info["audio_fps"]},)

class VideoCutByFramePoint:
    """FFMPEG视频剪辑-帧位"""

    @classmethod
    def INPUT_TYPES(s):
        return {
            "required": {
                "video_path": ("STRING",{"placeholder": "X://insert/path/here.mp4", "vhs_path_extensions": video_extensions}),
                "start_point": ("FLOAT", {"default": "0.0"}),
                "duration": ("FLOAT", {"default": "10.0"}),
                "fps": ("INT", {"default": "25"}),
                "force_match_fps": ("BOOLEAN", {"default": True}),
            },
        }

    RETURN_TYPES = ("IMAGE","AUDIO")
    RETURN_NAMES = ("视频帧","音频")

    FUNCTION = "cut"

    # OUTPUT_NODE = False

    CATEGORY = "不忘科技-自定义节点🚩"

    def cut(self, video_path, start_point, duration, fps, force_match_fps):
        # 原文件名
        origin_fname = ".".join(video_path.split(os.sep)[-1].split(".")[:-1])
        # 新文件名 复制改名适配ffmpeg
        uid = uuid.uuid1()
        temp_fname = os.sep.join(
            [
                *video_path.split(os.sep)[:-1],
                "%s.%s" % (str(uid), video_path.split(".")[-1]),
            ]
        )
        try:
            shutil.copy(video_path, temp_fname)
        except:
            return ("请检查输入文件权限",)
        video_path = temp_fname
        # 组装输出文件名
        output_name = ".".join(
            [
                *video_path.split(os.sep)[-1].split(".")[:-2],
                video_path.split(os.sep)[-1].split(".")[-2]
                + "_output_%s" % datetime.now().strftime("%Y%m%d_%H%M%S"),
                video_path.split(os.sep)[-1].split(".")[-1],
            ]
        )
        output = (
            os.sep.join([*video_path.split(os.sep)[:-1], output_name])
            .replace(
                os.sep.join(["ComfyUI", "input"]), os.sep.join(["ComfyUI", "output"])
            )
            .replace(" ", "")
        )
        # 调用ffmpeg
        ff = ffmpy.FFmpeg(
            inputs={video_path: None},
            outputs={
                output: [
                    "-ss",
                    "%.3f" % (start_point/fps),
                    "-t",
                    "%.3f" % (duration/fps),
                    "-c:v",
                    "libx264",
                    "-c:a",
                    "libmp3lame",
                    "-reset_timestamps",
                    "1",
                    "-sc_threshold",
                    "0",
                    "-g",
                    "1",
                    "-force_key_frames",
                    "expr:gte(t, n_forced * 1)",
                    "-r" if force_match_fps else "",
                    "%d" % fps if force_match_fps else "",
                    "-v",
                    "-8"
                ]
            },
        )
        print(ff.cmd)
        ff.run()
        # uuid填充改回原文件名
        try:
            os.remove(temp_fname)
        except:
            pass
        try:
            files = glob.glob(output.replace("%03d", "*"))
            for file in files:
                shutil.move(file, file.replace(str(uid), origin_fname))
            files = glob.glob(
                output.replace(str(uid), origin_fname).replace("%03d", "*")
            )
        except:
            files = glob.glob(output.replace("%03d", "*"))
            traceback.print_exc()
        video, audio, info = torchvision.io.read_video(files[0])
        video.mul_(255)
        audio.unsqueeze_(0)
        try:
            os.remove(files[0])
        except:
            pass
        return (video, {"waveform":audio,"sample_rate":info["audio_fps"]},)