视频剪辑

复制import subprocess

# 使用 FFmpeg 裁剪视频：保留第 10 秒到第 20 秒，关键帧无损
input_file = "input.mp4"
output_file = "output_cut.mp4"
start_time = "00:00:10"
duration = "00:00:10"  # 从 start 开始持续 10 秒

# -c copy 表示不重新编码，保持原质量
cmd = [
    "ffmpeg",
    "-i", input_file,
    "-ss", start_time,
    "-t", duration,
    "-c", "copy",
    output_file
]

result = subprocess.run(cmd, capture_output=True, text=True)
if result.returncode != 0:
    print("FFmpeg 错误:", result.stderr)
else:
    print(f"裁剪完成：{output_file}")

复制package main

import (
	"fmt"
	"os/exec"
)

func main() {
	// 使用 FFmpeg 裁剪视频，从第 10 秒开始持续 10 秒，关键帧无损
	input := "input.mp4"
	output := "output_cut.mp4"

	cmd := exec.Command("ffmpeg",
		"-i", input,
		"-ss", "00:00:10",
		"-t", "00:00:10",
		"-c", "copy",
		output,
	)

	out, err := cmd.CombinedOutput()
	if err != nil {
		fmt.Printf("FFmpeg 错误: %v\n%s\n", err, string(out))
		return
	}
	fmt.Printf("裁剪完成：%s\n", output)
}

复制const { execSync } = require('child_process');

// 使用 FFmpeg 裁剪视频，从第 10 秒开始持续 10 秒，关键帧无损
const input = 'input.mp4';
const output = 'output_cut.mp4';
const start = '00:00:10';
const duration = '00:00:10';

try {
  execSync(
    `ffmpeg -i "${input}" -ss ${start} -t ${duration} -c copy "${output}"`,
    { stdio: 'pipe' }
  );
  console.log(`裁剪完成：${output}`);
} catch (err) {
  console.error('FFmpeg 错误:', err.stderr.toString());
}