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• How to capture video of VIEW in android

  18 novembre 2015, par Mayur R. Amipara

  we can take screen-shot of particular VIEW programmatically in android same way i want to capture video of VIEW , is that possible ?

  i successfully run third party library ffmpeg but it doesn’t provide such functionality.

  Another way i tried it by taking so many screenshot of view each-second and combine it with ffmpeg , but it is to expensive and taking soooooo much time.

  FINAL QUESTIONS :

  i want to add text that is animating on video, any idea todo this ?

  currently get idea that i can animating textview in layout above video is playing in activity and capture that part of screen programatically, but i fail !

  iphone have functionality for adding text overlay with animation and it is called by AVComposition in iPhone. so, Android have such type of any functions or method ?... googled it for 5 days but not getting any result !

  sorry for my bad english, any point to suggest or any idea that how can i achieve this ?

• aacenc : increase fuzz on aac-ms-encode test

  17 octobre 2015, par Rostislav Pehlivanov

  aacenc : increase fuzz on aac-ms-encode test
  GCC 3.4 miscompiles it on sunos. Date of release ? The second of
  
  August two thousand and five, anno Domini. That’s ten years two
  
  months and fourteen days ago. Three thousand seven hundred and
  
  twenty seven days ago. One sixth of the average life expectancy
  
  of a person living in a country with a human development index
  
  of zero point eight hundred and eight, equality adjusted.
  
  GCC 4.3 also miscompiles it, though not as bad.
  

  • [DH] tests/fate/aac.mak

• ios video after trimming then play on non ios device audio/video out of sync

  31 août 2015, par gavinHe

  trimming video,then I send the video trimmed to android device and play,I find audio/video out of sync, the audio is several seconds behind the video. but the video can play normal on iOS device.
  1.I trim video with codes like this :

   - (IBAction)showTrimmedVideo:(UIButton *)sender
  
  {
  
  [self deleteTmpFile];
  
  
  
  NSURL *videoFileUrl = [NSURL fileURLWithPath:self.originalVideoPath];
  
  
  
  AVAsset *anAsset = [[AVURLAsset alloc] initWithURL:videoFileUrl options:nil];
  
  NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:anAsset];
  
  if ([compatiblePresets containsObject:AVAssetExportPresetMediumQuality]) {
  
  
  
      self.exportSession = [[AVAssetExportSession alloc]
  
                            initWithAsset:anAsset presetName:AVAssetExportPresetHighestQuality];
  
      // Implementation continues.
  
  
  
      NSURL *furl = [NSURL fileURLWithPath:self.tmpVideoPath];
  
  
  
      self.exportSession.outputURL = furl;
  
      self.exportSession.outputFileType = AVFileTypeMPEG4;
  
  
  
      CMTime start = CMTimeMakeWithSeconds(self.startTime, anAsset.duration.timescale);
  
      CMTime duration = CMTimeMakeWithSeconds(self.stopTime-self.startTime, anAsset.duration.timescale);
  
      CMTimeRange range = CMTimeRangeMake(start, duration);
  
      self.exportSession.timeRange = range;
  
  
  
      self.trimBtn.hidden = YES;
  
      self.myActivityIndicator.hidden = NO;
  
      [self.myActivityIndicator startAnimating];
  
      [self.exportSession exportAsynchronouslyWithCompletionHandler:^{
  
  
  
          switch ([self.exportSession status]) {
  
              case AVAssetExportSessionStatusFailed:
  
                  NSLog(@"Export failed: %@", [[self.exportSession error] localizedDescription]);
  
                  break;
  
              case AVAssetExportSessionStatusCancelled:
  
                  NSLog(@"Export canceled");
  
                  break;
  
              default:
  
                  NSLog(@"NONE");
  
                  dispatch_async(dispatch_get_main_queue(), ^{
  
                      [self.myActivityIndicator stopAnimating];
  
                      self.myActivityIndicator.hidden = YES;
  
                      self.trimBtn.hidden = NO;
  
                      [self playMovie:self.tmpVideoPath];
  
                  });
  
                  break;
  
          }
  
      }];
  
  }
  
  }

  2.I send the video trimmed to server,then android device get video from server,but they find audio/video out of sync,at first I consider of server do something wrong,so I just send video to android device with USB,the error still exist.

  3.so I analyze the trimmed video by ffmpeg tools :
  ffmpeg -i trimVideo.mp4
  then I find trimVideo.mp4 start is a negative number.
  here is what ffmpeg print :

  Metadata :
  major_brand : qt
  minor_version : 0
  compatible_brands : qt
  creation_time : 2015-08-29 12:22:13
  encoder : Lavf56.15.102
  Duration : 00:02:21.77, start : -4.692568, bitrate : 359 kb/s
  Stream #0:0(und) : Audio : aac (LC) (mp4a / 0x6134706D), 24000 Hz, stereo, fltp, 69 kb/s (default)
  Metadata :
  creation_time : 2015-08-29 12:22:13
  handler_name : Core Media Data Handler
  Stream #0:1(und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p, 512x288 [SAR 1:1 DAR 16:9], 277 kb/s, 15.16 fps, 15.17 tbr, 12136 tbn, 30.34 tbc (default)
  Metadata :
  creation_time : 2015-08-29 12:22:13
  handler_name : Core Media Data Handler
  encoder : ’avc1’

  I have been puzzled by this bug for several days, I am sorry of my bad english and I really need your help,thanks.