android - FFmpeg 错误输出文件 #0 不包含任何流

Question

我在使用 FFmpeg 剪切视频的一部分时遇到错误

以下是我的代码

String[] cmd = {"ffmpeg -ss 0 -i "+mPath+" -t 30 -c copy "+ (Environment.getExternalStorageDirectory().getAbsolutePath()+"/sample.mp4")};
executeCommand(cmd);

函数执行命令

void executeCommand(String[] cmd) {
    try {
        fFmpeg.execute(cmd, new FFmpegExecuteResponseHandler() {
            @Override
            public void onSuccess(String message) {
                Toast.makeText(VideoFullScreen.this, "finished :" + message, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onProgress(String message) {

            }

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

            @Override
            public void onStart() {

            }

            @Override
            public void onFinish() {

            }
        });
    } catch (FFmpegCommandAlreadyRunningException e) {
        e.printStackTrace();
    }
}

错误

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

Output #0, mp4, to 'ffmpeg -ss 0 -i /storage/emulated/0/Video/Demo.mp4 -t 30 -c copy /storage/emulated/0/sample.mp4':

Output file #0 does not contain any stream

Answer 1

This is an answer to my own question

我的问题出在我传递的命令字符串数组中

This answer is to the people who all are facing the similar kind of issues with ffmpeg

使用 ffmpeg 时应遵循的重要事项

1. 确保您在正确的 String Array

   中传递命令

   String[] cmd = {"-ss", "0", "-i" ,input_video_path, "-t" ,"30", "-c", "copy",output_video_path};
   

2. 不要在您传递的参数和标志中添加任何额外空格 {“-c”是错误的

3. 不要在 cmd 数组中传递 ffmpeg {“ffmpeg”是错误的

希望对大家有帮助