在视频上添加水印的命令 [英] Command for putting watermark on video
问题描述
我试图在一个视频上加水印，但FFmpeg命令无法执行，错误代码为3037.我运行相同的代码来修剪视频，并且视频被成功修剪，因此inputpath或outputpath没有任何问题我在Assets文件夹中也有ic_watermark.png.我尝试使用Drawable中的图像，但错误代码相同.
I tried to put watermark on one video but FFmpeg command won't execute and error code is 3037. I run the same code for trimming video and video is trimmed successfully so there is no issues with inputpath or outputpath also I have ic_watermark.png in assets folder. I tried with image from Drawable but same error code.
这是我尝试运行并在右上角添加水印的命令:
So here is the command which I tried to run and put watermark in right corner:
String[] cmd = new String[]{"-i", videoInputPath, "-i", imagePath, "-filter_complex", "overlay=main_w-overlay_w-5:main_h-overlay_h-5", videoOutPath };
这是整个方法:
private void executeFFmepg(String inputPath, String outputPath, String customCommand){
final Command command = videoKit.createCommand()
.overwriteOutput()
.inputPath(inputPath)
.outputPath(outputPath)
.customCommand(customCommand)
.experimentalFlag()
.build();
new AsyncCommandExecutor(command, this).execute();
}
我使用了一个基于FFmpeg的库: https://github.com/inFullMobile /videokit-ffmpeg-android
和说明说，这基本上是使用CLI参数调用FFmpeg main().
I used one library based on FFmpeg: https://github.com/inFullMobile/videokit-ffmpeg-android
and description says that this is basically invoking FFmpeg main() with CLI arguments.
这是我从Log那里得到的:
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
05-29 15:35:08.591 24037-24037/com.cleatchaser D/FFmpeg: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/Camera/20180406_140202.mp4':
Metadata:
major_brand : isom
minor_version : 0
05-29 15:35:08.596 24037-24037/com.cleatchaser D/FFmpeg: compatible_brands: isom3gp4
creation_time : 2018-04-06 12:02:25
Duration: 00:00:15.06, start: 0.000000, bitrate: 17185 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17029 kb/s, 29.95 fps, 30 tbr, 90k tbn, 180k tbc (default)
05-29 15:35:08.601 24037-24037/com.cleatchaser D/FFmpeg: Metadata:
rotate : 90
creation_time : 2018-04-06 12:02:25
handler_name : VideoHandle
Side data:
05-29 15:35:08.606 24037-24037/com.cleatchaser D/FFmpeg: displaymatrix: rotation of -90.00 degrees
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 123 kb/s (default)
Metadata:
creation_time : 2018-04-06 12:02:25
05-29 15:35:08.611 24037-24037/com.cleatchaser D/FFmpeg: handler_name : SoundHandle
05-29 15:35:08.756 24037-24037/com.cleatchaser D/FFmpeg: Input #1, png_pipe, from '/storage/emulated/0/watermark.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 856x1324, 25 tbr, 25 tbn, 25 tbc
我尝试了类似问题的许多答案，但没有一个起作用.
I tried many answers from similar questions but none of them worked.
错误是否可能在引号中?
Is possible that error is in quotes?
我没有FFmpeg的经验，所以我们将不胜感激.谢谢
I don't have experience with FFmpeg so any help would be very appreciated. Thanks
推荐答案
如果将来有人在视频上加水印时遇到问题，可以使用此方法.可以使用Writingminds编译的FFmpeg库来完成: http://writingminds.github.io/ffmpeg-android-java/
If anyone has the issue in future with putting watermark on video here is how you can do it. This can be done using writingminds compiled FFmpeg library: http://writingminds.github.io/ffmpeg-android-java/
按照说明如何将FFmpeg设置到您的项目中.之后，通过运行以下命令，我可以在视频上添加水印:
Follow the instructions how to setup FFmpeg into your project. After that by running this command I was able to put watermark on video:
String commands[]={"-y","-i",videoInputPath,"-i", imagePath,"-filter_complex","[1:v]scale=200:200 [ovrl], [0:v][ovrl]overlay=main_w-overlay_w-5:main_h-overlay_h-5:enable='between(t,"+0+","+timeInSec+")'","-codec:a","copy","-strict","-2","-c:v","libx264","-preset","ultrafast",videoOutPath};
videoInputPath-是视频的路径
imagePath-是来自外部存储器的图像路径.我尝试使用来自Drawable的图片，但没有发现该图片有效(不是说不可能)
imagePath - is path of an image from external storage. I tried by using image from Drawable but didn't find that working (not saying it's not possible)
timeInSec-是您可以从MediaMetadataRetriever获得的视频长度:
timeInSec - is length of video which you can get from MediaMetadataRetriever:
File videoFile = new File(path);
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
retriever.setDataSource(this, Uri.fromFile(videoFile));
String time = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
long timeInMillisec = Long.parseLong(time );
timeInSec = (int) (timeInMillisec /1000);
videoOutPath-放置水印后将保存视频的路径
videoOutPath - path where video is going to be saved after putting watermark
上面的命令还将在200:200上缩放水印，您可以根据需要进行调整并将其放置在右下角.
Command above will also scale watermark on 200:200 you can adjust according to your needs and put it in bottom right side.
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