Class: BMFF::Box::CompactSampleSize

Inherits:
Full
  • Object
show all
Defined in:
lib/bmff/box/compact_sample_size.rb

Overview

vim: set expandtab tabstop=2 shiftwidth=2 softtabstop=2 autoindent:

Instance Attribute Summary collapse

Attributes inherited from Full

#flags, #version

Attributes inherited from Base

#io, #largesize, #offset, #parent, #size, #type, #usertype

Instance Method Summary collapse

Methods inherited from Base

#actual_size, #container?, #eob?, #parse, register_box, #remaining_size, #seek_to_end

Instance Attribute Details

#entry_size ⇒ Object

Returns the value of attribute entry_size.



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# File 'lib/bmff/box/compact_sample_size.rb', line 5

def entry_size
  @entry_size
end

#field_size ⇒ Object

Returns the value of attribute field_size.



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# File 'lib/bmff/box/compact_sample_size.rb', line 5

def field_size
  @field_size
end

#reserved1 ⇒ Object

Returns the value of attribute reserved1.



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# File 'lib/bmff/box/compact_sample_size.rb', line 5

def reserved1
  @reserved1
end

#sample_count ⇒ Object

Returns the value of attribute sample_count.



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# File 'lib/bmff/box/compact_sample_size.rb', line 5

def sample_count
  @sample_count
end

Instance Method Details

#parse_data ⇒ Object 



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# File 'lib/bmff/box/compact_sample_size.rb', line 8

def parse_data
  super
  @reserved1 = io.get_uint24
  @field_size = io.get_uint8
  @sample_count = io.get_uint32
  @entry_size = []
  i = 0
  while i < @sample_count
    case @field_size
    when 4
      tmp = io.get_uint8
      @entry_size << (tmp >> 4)
      i += 1
      @entry_size << (tmp & 0x0F) if i < @sample_count
    when 8
      @entry_size << io.get_uint8
    when 16
      @entry_size << io.get_uint16
    else
      raise ArgumentError, "Unsupported field_size"
    end
    i += 1
  end
end