duration

问题 i'm trying to get the audio file duration from my server using media player MediaPlayer mp = new MediaPlayer(); try { mp.reset(); mp.setDataSource("link here"); mp.prepare(); }catch (IOException e){ e.printStackTrace(); } mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mediaPlayer) { Log.e("time",mp.getDuration()+" .."); } }); when i put my server file link , it always return 0 but when i use another link from the web it gives me

问题 How can you make ObjectAnimator independent of the "Animator duration scale" developer options setting when constant and unmodifiable speed is critical? 回答1: I noticed there is no explicit answer for this. You can do this by calling the hidden API via reflection: // Get duration scale from the global settings. float durationScale = Settings.Global.getFloat(context.getContentResolver(), Settings.Global.ANIMATOR_DURATION_SCALE, 0); // If global duration scale is not 1 (default), try to override

问题 I am automating a excel report using the POI API for Java. I will have few reports in my disposal which I read using POI, process them, and create a new excel report. One of columns from an excel file has total time spent, that is, it could in following format, 46:23:12 - this reads as 46 hours, 23 minutes and 12 seconds . I understand how to read date and time values and I usually store them in java.util.Date . The problem here is this is a time duration, the hours spent could be more than

问题 I am automating a excel report using the POI API for Java. I will have few reports in my disposal which I read using POI, process them, and create a new excel report. One of columns from an excel file has total time spent, that is, it could in following format, 46:23:12 - this reads as 46 hours, 23 minutes and 12 seconds . I understand how to read date and time values and I usually store them in java.util.Date . The problem here is this is a time duration, the hours spent could be more than

问题 I am automating a excel report using the POI API for Java. I will have few reports in my disposal which I read using POI, process them, and create a new excel report. One of columns from an excel file has total time spent, that is, it could in following format, 46:23:12 - this reads as 46 hours, 23 minutes and 12 seconds . I understand how to read date and time values and I usually store them in java.util.Date . The problem here is this is a time duration, the hours spent could be more than

问题 I am automating a excel report using the POI API for Java. I will have few reports in my disposal which I read using POI, process them, and create a new excel report. One of columns from an excel file has total time spent, that is, it could in following format, 46:23:12 - this reads as 46 hours, 23 minutes and 12 seconds . I understand how to read date and time values and I usually store them in java.util.Date . The problem here is this is a time duration, the hours spent could be more than

问题 I have the following data file. This is a daily data of rainfall with four columns (YY,MM,DD,RR). Apologies, this is the smallest data that I can generate. dat<-structure(list(YY = c(1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1979L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L, 1980L,

问题 My problem is that i need to extract with FFMPEG the audio contained in a video with the same duration. But for some files that i tested, the audio's duration is sometimes shorter than the video's duration. I need to have the exact same duration between the audio and the video file. The command that i have already tried is this following: ffmpeg -i input_video.mp4 output_audio.wav How can i fix this with options in my command ? 回答1: I found the solution. To get an audio extract with the exact

问题 I apologize if this has already been discussed. I have a clip duration in a string: 00:10:17 I would like to convert that to value in milliseconds. (Basically 617000 for the above string) Is there some API that I could use to do this in one or two steps. On basic way would be to split the string and then add the minutes, seconds and hours. But is there a shorter way to do this? Thanks. 回答1: Here is one own written possible approach(assumption of same source format always) String source = "00

问题 I want my swift code to call the playSound and play the sound based for the duration of each item in array playamount. So I want the user to play the sound for the first time for 10 seconds then play the sound starting at the beginning for 20 and then the same thing for 30 seconds. So the sound always starts at the beginning each time it is called. import UIKit; import AVFoundation class ViewController: UIViewController { var player: AVAudioPlayer? func playSound() { let url = Bundle