Android FFmpeg无法识别的选项

Question

我想在android中使用ffmepg压缩视频。这里是我的代码：

String[] cmd = {"-y -i" ,myVideo.getAbsolutePath().replaceAll(" ", "%20"),"-vf","-s 640x480","-threads 5","-preset ultrafast","-strict -2", (local_paths.getLocal_images() + File.separator + "test.mp4")}; 
      FFmpeg ffmpeg = FFmpeg.getInstance(context); 
      try { 
       //Load the binary 
       ffmpeg.loadBinary(new LoadBinaryResponseHandler() { 

        @Override 
        public void onStart() { 
        } 

        @Override 
        public void onFailure() { 
        } 

        @Override 
        public void onSuccess() { 
        } 

        @Override 
        public void onFinish() { 
        } 
       }); 
      } catch (FFmpegNotSupportedException e) { 
       // Handle if FFmpeg is not supported by device 
      } 
      try { 
       // to execute "ffmpeg -version" command you just need to pass "-version" 
       ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() { 

        @Override 
        public void onStart() { 
         Log.e("FFmpeg", "onStart"); 
        } 

        @Override 
        public void onProgress(String message) { 
         Log.e("FFmpeg", message); 
        } 

        @Override 
        public void onFailure(String message) { 
         Log.e("FFmpeg", message); 
        } 

        @Override 
        public void onSuccess(String message) { 
         Log.e("FFmpeg", message); 
        } 


        @Override 
        public void onFinish() { 
         Log.e("FFmpeg", "onFinish"); 
        } 
       }); 
      } catch (FFmpegCommandAlreadyRunningException e) { 
       e.printStackTrace(); 
       // Handle if FFmpeg is already running 
      } 

的问题是，我使用的原因Unrecognized option错误几乎所有的命令：

> 07-04 11:31:21.471 24610-25450/com.network.imyth.network E/FFmpeg: 
> onStart 07-04 11:31:22.091 24610-25460/com.network.imyth.network 
> D/FFmpeg: Running publishing updates method 07-04 11:31:22.101 
> 24610-24610/com.network.imyth.network E/FFmpeg: ffmpeg version n3.0.1 
> Copyright (c) 2000-2016 the FFmpeg developers 07-04 11:31:22.101 
> 24610-24610/com.network.imyth.network E/FFmpeg: built with gcc 4.8 
> (GCC) 07-04 11:31:22.101 24610-24610/com.network.imyth.network 
> E/FFmpeg: configuration: --target-os=linux 
> --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- 
> --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot 
> --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include 
> -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib 
> -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags= 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libavutil  55. 
> 17.103/55. 17.103 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libavcodec  57. 
> 24.102/57. 24.102 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libavformat 57. 
> 25.100/57. 25.100 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libavdevice 57. 
> 0.101/57. 0.101 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libavfilter  6. 
> 31.100/6. 31.100 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libswscale  4. 
> 0.100/4. 0.100 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libswresample 2. 
> 0.101/2. 0.101 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: libpostproc 54. 
> 0.100/54. 0.100 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: Unrecognized option 'y 
> -i'. 07-04 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: Error splitting the argument list: Option not found 07-04 
> 11:31:22.101 24610-24610/com.network.imyth.network E/FFmpeg: ffmpeg 
> version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers 
>                  built with gcc 4.8 (GCC) 
>                  configuration: --target-os=linux 
> --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- 
> --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot 
> --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include 
> -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib 
> -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags= 
>                  libavutil  55. 17.103/55. 17.103 
>                  libavcodec  57. 24.102/57. 24.102 
>                  libavformat 57. 25.100/57. 25.100 
>                  libavdevice 57. 0.101/57. 0.101 
>                  libavfilter  6. 31.100/6. 31.100 
>                  libswscale  4. 0.100/4. 0.100 
>                  libswresample 2. 0.101/2. 0.101 
>                  libpostproc 54. 0.100/54. 0.100 
>                 Unrecognized option 'y -i'. 
>                 Error splitting the argument list: Option not found 07-04 11:31:22.101 
> 24610-24610/com.network.imyth.network E/FFmpeg: onFinish 

这样的问题是什么我得到这个无法识别的选项错误分裂参数列表：选项不发现使用该LIB ffmpeg-android-java

Answer 1

尝试分裂你的论点

IM。这应该工作：

String[] command = {"-y", "-i", "/path/to/your/video.mp4", "-vf", "-s", "640x480", "-threads", "5", "-preset", "ultrafast", "-strict", "-2", "/path/to/your/video_out.mp4"};