Function ResolveFFmpegToolchainPath

api/service/ffmpeg_toolchain.go:43–91

ResolveFFmpegToolchainPath 按项目优先级解析 ffmpeg 可执行文件路径。

()

// ResolveFFmpegToolchainPath 按项目优先级解析 ffmpeg 可执行文件路径。
func ResolveFFmpegToolchainPath() (string, error) {
	// 优先级1: 环境变量 FFMPEG_PATH
	if path := strings.TrimSpace(os.Getenv("FFMPEG_PATH")); path != "" {
		resolved, err := resolveFFmpegExecutableCandidate(path)
		if err == nil && resolved != "" {
			return resolved, nil
		}
	}

	// 优先级2: 当前工作目录下的相对路径（适用于开发调试）
	if wd, err := os.Getwd(); err == nil {
		candidates := []string{
			filepath.Join(wd, "bin", "ffmpeg", "ffmpeg"),
			filepath.Join(wd, "bin", "ffmpeg"),
			filepath.Join(wd, "ffmpeg", "ffmpeg"),
			filepath.Join(wd, "ffmpeg"),
		}
		for _, candidate := range candidates {
			if resolved, err := resolveFFmpegExecutableCandidate(candidate); err == nil {
				return resolved, nil
			}
		}
	}

	// 优先级3: 基于可执行文件目录的相对路径（适用于部署环境）
	if execPath, err := ffmpegToolchainExecutablePath(); err == nil {
		appDir := filepath.Dir(execPath)
		candidates := []string{
			filepath.Join(appDir, "bin", "ffmpeg", "ffmpeg"),
			filepath.Join(appDir, "bin", "ffmpeg"),
			filepath.Join(appDir, "ffmpeg", "ffmpeg"),
			filepath.Join(appDir, "ffmpeg"),
		}
		for _, candidate := range candidates {
			if resolved, err := resolveFFmpegExecutableCandidate(candidate); err == nil {
				return resolved, nil
			}
		}
	}

	// 优先级4: 系统 PATH
	if path, err := ffmpegToolchainLookPath("ffmpeg"); err == nil {
		if resolved, err := resolveFFmpegExecutableCandidate(path); err == nil {
			return resolved, nil
		}
	}

	return "", errors.New("未找到可用的 ffmpeg 可执行文件")
}

// CheckFFmpegToolchainCapabilitiesWithPath 使用指定路径探测 FFmpeg 能力。
func CheckFFmpegToolchainCapabilitiesWithPath(ctx context.Context, path string, runner ffmpegToolchainCommandRunner) FFmpegToolchainResult {