视频合成无人像展示

shenrongliang

2025-04-15 25a703840328fdbac6b5f9f2173e84ce95e4837b

 yudao-module-digitalcourse/yudao-module-digitalcourse-biz/src/main/java/cn/iocoder/yudao/module/digitalcourse/service/coursemedia/CourseMediaServiceUtil.java

@@ -147,19 +147,20 @@
            //ffmpeg -i 2.png -i 1.mp4 -filter_complex "[0:v]scale=w=ceil(iw/2)*2:h=ceil(ih/2)*2[bg];[1:v]scale=iw/2:ih/2[v1];[bg][v1]overlay=x=0:y=H-h" output.mp4
            //判断是否有人像
            ProcessBuilder builder = null;
            if("1".equals(scene.getHasPerson())){
            if ("1".equals(scene.getHasPerson())) {
                // 当有需要添加人像时
                builder = new ProcessBuilder(
                        "ffmpeg",
                        "-i", cover1,
                        "-i", cover,
                        "-i", substring1,
                        "-i", cover1, // 背景图
                        "-i", cover,  // PPT内容
                        "-i", substring1, // 人像视频
                        "-filter_complex",
                        "[0:v]scale=" + Math.round(scene.getBackground().getWidth()) + ":" + Math.round(scene.getBackground().getHeight()) + "[bg];" +
                                "[1:v]scale=" + Math.round(scene.getComponents().get(1).getWidth()) + ":" + Math.round(scene.getComponents().get(1).getHeight()) + "[v1];" +
                                "[bg][v1]overlay=x=" + Math.round(scene.getComponents().get(1).getMarginLeft()) + ":y=" + Math.round(scene.getComponents().get(1).getTop()) + "[img];" +
                                "[2:v]scale=" + Math.round(scene.getComponents().get(0).getWidth()) + ":" + Math.round(scene.getComponents().get(0).getHeight()) + "[v2];" +
                                "[img][v2]overlay=x=" + Math.round(scene.getComponents().get(0).getMarginLeft()) + ":y=" + Math.round(scene.getComponents().get(0).getTop()),
                        newFileName2
                        newFileName2 // 输出文件名
                );
            } else if ("2".equals(scene.getHasPerson())) {
                // 当没有人像时，视频放在 cover 的下层
@@ -167,10 +168,13 @@
                        "ffmpeg",
                        "-i", cover1, // 背景图
                        "-i", substring1, // 视频
                        "-i", cover, // PPT内容
                        "-filter_complex",
                        "[0:v]scale=" + Math.round(scene.getBackground().getWidth()) + ":" + Math.round(scene.getBackground().getHeight()) + "[bg];" +
                                "[1:v]scale=" + Math.round(scene.getComponents().get(0).getWidth()) + ":" + Math.round(scene.getComponents().get(0).getHeight()) + "[v1];" +
                                "[bg][v1]overlay=x=" + Math.round(scene.getComponents().get(0).getMarginLeft()) + ":y=" + Math.round(scene.getComponents().get(0).getTop()),
                                "[bg][v1]overlay=x=" + Math.round(scene.getComponents().get(0).getMarginLeft()) + ":y=" + Math.round(scene.getComponents().get(0).getTop()) + "[img];" +
                                "[2:v]scale=" + Math.round(scene.getComponents().get(1).getWidth()) + ":" + Math.round(scene.getComponents().get(1).getHeight()) + "[v2];" +
                                "[img][v2]overlay=x=" + Math.round(scene.getComponents().get(1).getMarginLeft()) + ":y=" + Math.round(scene.getComponents().get(1).getTop()),
                        newFileName2 // 输出文件名
                );
            }