在我的应用程序中，我具有修剪视频的功能。
我在这里使用FFmpeg。 下面是我的代码
在顶部声明，
FFmpeg ffmpeg;
使用以下代码加载库
try {
if (ffmpeg == null) {
Log.e("loadFFMpegBinary","null");
ffmpeg = FFmpeg.getInstance(Constants.appContext);
}
ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
@Override public void onFailure() {
Log.e("loadBinary","Failure");
}
@Override public void onSuccess() {
Log.e("onSuccess","onSuccess");
}
});
} catch (FFmpegNotSupportedException e) {
Log.e("FFmpegNot",":-"+e);
}
使用以下代码进行修整
File externalStoragePublicDirectory = new File(destPath);
if (!externalStoragePublicDirectory.exists() ? externalStoragePublicDirectory.mkdir() : true) {
String filePrefix = yourRealPath.substring(yourRealPath.lastIndexOf("."));
String destFileName = getString(R.string.app_name) + System.currentTimeMillis();
boolean isFastMode = false;
File dest = (filePrefix.equals(".webm") || filePrefix.equals(".mkv")) ? new File(externalStoragePublicDirectory, destFileName + ".mp4") : new File(externalStoragePublicDirectory, destFileName + filePrefix);
int fileNo = 0;
while (dest.exists()) {
fileNo++;
dest = (filePrefix.equals(".webm") || filePrefix.equals(".mkv")) ? new File(externalStoragePublicDirectory, destFileName + fileNo + ".mp4") : new File(externalStoragePublicDirectory, destFileName + fileNo + filePrefix);
}
Log.e(TAG, "startTrim: src: " + yourRealPath);
Log.e(TAG, "startTrim: dest: " + dest.getAbsolutePath());
Log.e(TAG, "startTrim: startMs: " + startMs);
Log.e(TAG, "startTrim: endMs: " + endMs);
String filePath = dest.getAbsolutePath();
Log.e(TAG, "startTrim: filePath: " + filePath);
String[] complexCommand = {"-ss", "" + startMs / 1000, "-y", "-i",
yourRealPath, "-t", "" + (endMs - startMs) / 1000, "-s",
"320x240", "-r", "15", "-vcodec", "mpeg4", "-b:v", "2097152",
"-b:a", "48000", "-ac", "2", "-ar", "22050", dest.getAbsolutePath()};
try {
ffmpeg.execute(complexCommand, new ExecuteBinaryResponseHandler() {
@Override
public void onFailure(String s) {
Log.e(TAG, "FAILED with output : " + s);
}
@Override
public void onSuccess(String s) {
Log.e(TAG, "SUCCESS with output : " + s);
}
@Override
public void onProgress(String s) {
Log.e(TAG, "Started command : ffmpeg " + command);
}
@Override
public void onStart() {
Log.e(TAG, "Started command : ffmpeg " + command);
}
@Override
public void onFinish() {
Log.e(TAG, "Finished command : ffmpeg " + command);
}
});
} catch (FFmpegCommandAlreadyRunningException e) {
Log.e("Exception",";-"+e);
}
这里我遇到以下错误，
12-13 12：53：38.057 31029-31029 / com.jobsounder E / VideoCropperFragment：FAILED with output：ffmpeg version n3.0.1版权所有（c）2000-2016 FFmpeg开发人员 内置gcc 4.8（GCC） 配置：--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-严格溢出-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 输入＃0，mov，mp4，m4a，3gp，3g2，mj2，来自“ /storage/emulated/0/Download/VID-20181211-WA0008.mp4”： 元数据： major_brand：isom minor_version：512 兼容品牌：isomiso2avc1mp41 编码器：Lavf56.40.101 评论：vid：v0702afc0000beoc8l4hfpit57rr9vbg 持续时间：00：00：15.09，开始：0.000000，比特率：1550 kb / s 流＃0：0（und）：视频：h264（高）（avc1 / 0x31637661），yuv420p，576x1024、1478 kb / s，27.43 fps，27.43 tbr，409k tbn，54.87 tbc（默认） 元数据： handler_name：VideoHandler 流＃0：1（und）：音频：aac（LC）（mp4a / 0x6134706D），44100 Hz，立体声，fltp，64 kb / s（默认） 元数据： handler_name：SoundHandler /data/app/com.jobsounder-2/lib/arm/JobSounder1544685817737.mp4：权限被拒绝 12-13 12：53：38.057 31029-31029 / com.jobsounder E / VideoCropperFragment：完成的命令：ffmpeg [Ljava.lang.String; @ 11c7227b