FFmpegAndroid library rotates video after Compress

Question

execFFmpegBinary(new String[]{\"-y\", \"-i\", path, \"-s\", \"160x120\", \"-r\", \"25\", \"-vcodec\", \"mpeg4\", \"-b:v\", \"150k\", \"-b:a\", \"48000\", \"-ac\", \"2\", \"-ar\"

Answer 1

it might be the autorotate issue in FFMPEG and you have to disable autorotate:

ffmpeg -noautorotate -i input.mp4 output.mp4

if this solution doesn't solve your problem, you can get the input video rotation with Android APIs like this:

MediaMetadataRetriever m = new MediaMetadataRetriever();
m.setDataSource(inputVideoFilePath);
String rotation;
if (Build.VERSION.SDK_INT >= 17) {
     rotation = m.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
}

after finding input file's rotation, you have to rotate the output file accordingly as below :

ffmpeg -noautorotate -i input.mp4 -filter:v "rotation*PI/180" output.mp4