library/src/main/java/com/felipecsl/gifimageview/library/GifHeaderParser.java
private int readBlock() {
    blockSize = read();
    int n = 0;
    if (blockSize > 0) {
      int count = 0;
      try {
        while (n < blockSize) {
          count = blockSize - n;
          rawData.get(block, n, count);

          n += count;
        }
      } catch (Exception e) {
        if (Log.isLoggable(TAG, Log.DEBUG)) {
          Log.d(TAG,
              "Error Reading Block n: " + n + " count: " + count + " blockSize: " + blockSize, e);
        }
        header.status = GifDecoder.STATUS_FORMAT_ERROR;
      }
    }
    return n;
  }
private int readBlock() {
    blockSize = read();
    int n = 0;
    if (blockSize > 0) {
      int count = 0;
      try {
        while (n < blockSize) {
          count = blockSize - n;
          rawData.get(block, n, count);

          n += count;
        }
      } catch (Exception e) {
        if (Log.isLoggable(TAG, Log.DEBUG)) {
          Log.d(TAG,
              "Error Reading Block n: " + n + " count: " + count + " blockSize: " + blockSize, e);
        }
        header.status = GifDecoder.STATUS_FORMAT_ERROR;
      }
    }
    return n;
  }
private int readBlock ( ) { blockSize = read ( ) ; int n = 0 ; if ( blockSize > 0 ) { int count = 0 ; try { while ( n < blockSize ) { count = blockSize - n ; rawData . get ( block , n , count ) ; n += count ; } } catch ( Exception e ) { if ( Log . isLoggable ( TAG , Log . DEBUG ) ) { Log . d ( TAG , "Error Reading Block n: " + n + " count: " + count + " blockSize: " + blockSize , e ) ; } header . status = GifDecoder . STATUS_FORMAT_ERROR ; } } return n ; }
Reads next variable length block from input.

@return number of bytes stored in "buffer"
Reads next variable length block from input .