音频 + 图片→视频

复制#!/bin/bash
# 将 input.jpg 和 input.mp3 合成为 10 秒视频 output.mp4
# 图片会循环显示，音频长度决定视频总时长

ffmpeg -loop 1 \
       -i input.jpg \
       -i input.mp3 \
       -c:v libx264 \
       -tune stillimage \
       -c:a aac \
       -b:a 192k \
       -pix_fmt yuv420p \
       -shortest \
       output.mp4

echo "生成完成: output.mp4"

复制import subprocess
import os

def image_audio_to_video(image_path: str, audio_path: str, output_path: str):
    """
    使用 FFmpeg 将静态图片 + 音频合成为视频
    音频长度决定视频时长，图片循环显示
    """
    if not os.path.exists(image_path):
        raise FileNotFoundError(f"图片文件不存在: {image_path}")
    if not os.path.exists(audio_path):
        raise FileNotFoundError(f"音频文件不存在: {audio_path}")

    cmd = [
        "ffmpeg",
        "-loop", "1",           # 循环播放图片
        "-i", image_path,
        "-i", audio_path,
        "-c:v", "libx264",
        "-tune", "stillimage",  # 针对静态图片优化编码
        "-c:a", "aac",
        "-b:a", "192k",
        "-pix_fmt", "yuv420p",  # 兼容性最好的像素格式
        "-shortest",            # 以最短输入（音频）为时长
        "-y",                   # 覆盖已有文件
        output_path
    ]

    result = subprocess.run(cmd, capture_output=True, text=True)
    if result.returncode != 0:
        raise RuntimeError(f"FFmpeg 执行失败: {result.stderr}")
    return output_path

# 使用示例
output = image_audio_to_video("cover.jpg", "narration.mp3", "output.mp4")
print(f"视频已生成: {output}")

复制package main

import (
	"fmt"
	"os"
	"os/exec"
)

// ImageAudioToVideo 将图片和音频合成为视频
func ImageAudioToVideo(imagePath, audioPath, outputPath string) error {
	// 检查输入文件是否存在
	if _, err := os.Stat(imagePath); os.IsNotExist(err) {
		return fmt.Errorf("图片文件不存在: %s", imagePath)
	}
	if _, err := os.Stat(audioPath); os.IsNotExist(err) {
		return fmt.Errorf("音频文件不存在: %s", audioPath)
	}

	cmd := exec.Command("ffmpeg",
		"-loop", "1",
		"-i", imagePath,
		"-i", audioPath,
		"-c:v", "libx264",
		"-tune", "stillimage",
		"-c:a", "aac",
		"-b:a", "192k",
		"-pix_fmt", "yuv420p",
		"-shortest",
		"-y",
		outputPath,
	)

	output, err := cmd.CombinedOutput()
	if err != nil {
		return fmt.Errorf("FFmpeg 执行失败: %s, 输出: %s", err, string(output))
	}
	return nil
}

func main() {
	err := ImageAudioToVideo("cover.jpg", "narration.mp3", "output.mp4")
	if err != nil {
		fmt.Fprintf(os.Stderr, "错误: %v\n", err)
		os.Exit(1)
	}
	fmt.Println("视频已生成: output.mp4")
}