android - FFMPEG：覆盖video_audio不连接或合并android

Question

我正在尝试叠加两个视频+音频并制作单个视频，但我只得到第一个视频语音而没有得到第二个视频语音。这是我的代码：

String[] complexCommandv = {"ffmpeg", "-y", "-i", "/sdcard/videokit/in.mp4", "-i", "/sdcard/videokit/tttt.mp4", "-strict", "experimental", "-filter_complex", "[0:v:0]pad=iw*2:ih[bg];" + "[bg][1:v:1]overlay=w", "-s", "320x240", "-r", "30", "-b", "15496k", "-vcodec", "mpeg4", "-ab", "48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/partik.mp4"};

Answer 1

你应该使用这样的命令：

ffmpeg -i "videostream.mp4" -i "audiostream.aac" -acodec copy -vcodec copy "output.mp4"

Answer 2

是的！！！我用定制的代码自己做的。

        String[] complexCommand = {"ffmpeg", "-y", "-i", "/sdcard/videokit/g1.mp4",
                                    "-i", "/sdcard/videokit/t4.mp4",
                                    "-strict", "experimental", "-filter_complex",
                                    "[0:v:0]pad=iw*2:ih[bg];" + "[bg][1:v:1]overlay=w,scale=320x240; [0:1]pan=stereo|c0=2*c0|c1=3*c0[a0];[1:a]pan=stereo|c0=1*c0|c1=4*c0[a1];[a0][a1]amix=inputs=2:duration=first:dropout_transition=2",
                                    "-r", "30", "-b", "15496k", "-vcodec", "mpeg4", "-ab", "48000", "-ac", "2", "-ar", "22050", "-shortest", "/sdcard/videokit/parik.mp4"};