Author: mosu
Date: 2004-09-11 21:48:34 +0400 (Sat, 11 Sep 2004)
New Revision: 781
Added:
trunk/RbMatroska/ebml/
trunk/RbMatroska/ebml/binary.rb
trunk/RbMatroska/ebml/date.rb
trunk/RbMatroska/ebml/file.rb
trunk/RbMatroska/ebml/float.rb
trunk/RbMatroska/ebml/master.rb
trunk/RbMatroska/ebml/sinteger.rb
trunk/RbMatroska/ebml/string.rb
trunk/RbMatroska/ebml/uinteger.rb
trunk/RbMatroska/ebml/unicodestring.rb
Modified:
trunk/RbMatroska/ebml.rb
Log:
Split the EBML classes into seperate files. This should be more concise, especially when I add support and a lot of code for writing stuff.
Added: trunk/RbMatroska/ebml/binary.rb
===================================================================
--- trunk/RbMatroska/ebml/binary.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/binary.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,32 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class Binary < Element
+ def read(ef)
+ @value = ef.io.read(@data_size)
+ raise EOFError if (@value.size < @data_size)
+
+ return self
+ end
+
+ def to_s
+ @value ||= Array.new
+ return "[Binary size " + @data_size.to_s + "]"
+ end
+ end # class Binary
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/binary.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/date.rb
===================================================================
--- trunk/RbMatroska/ebml/date.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/date.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,27 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+require "ebml/uinteger"
+
+module Ebml
+ class Date < UInteger
+ def to_s
+ @value ||= 0
+ return Time.at(@value / 1000000000).to_s
+ end
+ end # class Date
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/date.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/file.rb
===================================================================
--- trunk/RbMatroska/ebml/file.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/file.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,123 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class File
+ attr_reader :io
+
+ def initialize(io)
+ @io = io
+ end
+
+ def entity_size?(byte, mask_bits = false)
+ size = 0
+ mask = 0
+ if ((byte & 0x80) == 0x80)
+ size = 1
+ mask = 0x7f
+ elsif ((byte & 0xc0) == 0x40)
+ size = 2
+ mask = 0x3f
+ elsif ((byte & 0xe0) == 0x20)
+ size = 3
+ mask = 0x1f
+ elsif ((byte & 0xf0) == 0x10)
+ size = 4
+ mask = 0x0f
+ elsif ((byte & 0xf8) == 0x08)
+ size = 5
+ mask = 0x07
+ elsif ((byte & 0xfc) == 0x04)
+ size = 6
+ mask = 0x03
+ elsif ((byte & 0xfe) == 0x02)
+ size = 7
+ mask = 0x01
+ elsif (byte == 1)
+ size = 8
+ mask = 0x00
+ else
+ raise DataError
+ end
+ byte = byte & mask if (mask_bits)
+ return [size, byte]
+ end
+
+ def read_id
+ id = 0
+
+ byte = @io.getc
+ return nil if (byte == nil)
+
+ esize = entity_size?(byte)
+ raise IdError if (esize[0] > 4)
+ id = esize[1]
+
+ 1.upto(esize[0] - 1) do |i|
+ byte = @io.readchar
+ id = id * 256 + byte
+ end
+ return Id.new(id, esize[0])
+ end
+
+ def read_size
+ byte = @io.getc
+ return nil if (byte == nil)
+
+ esize = entity_size?(byte, true)
+
+ size = esize[1]
+ 1.upto(esize[0] - 1) do
+ byte = @io.readchar
+ size = size * 256 + byte
+ end
+ return [size, esize[0]]
+ end
+
+ def read_element_head
+ pos = @io.pos
+ id = read_id
+ return nil if (id.class == NilClass)
+ size = read_size
+ return nil if (size.class == NilClass)
+ return find_class_for_id(id).new(id, pos, size[0], size[1])
+ end
+
+ def map_ids(namespace = nil)
+ @id_mapping = Hash.new
+
+ rebml = Regexp.new("^Ebml::")
+ rns = nil
+ if (namespace != nil)
+ require namespace.downcase
+ rns = Regexp.new("^#{namespace}::")
+ end
+ ObjectSpace.each_object(Class) do |c|
+ if (((rebml =~ c.name) or ((rns != nil) and (rns =~ c.name))) and
+ (c.respond_to?("global_id")))
+ @id_mapping[c.global_id.value] = c
+ end
+ end
+ end
+
+ def find_class_for_id(id)
+ raise Error, "IDs not mapped" unless (@id_mapping)
+ return @id_mapping[id.value] if (@id_mapping.has_key?(id.value))
+ return Element
+ end
+ end # class File
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/file.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/float.rb
===================================================================
--- trunk/RbMatroska/ebml/float.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/float.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,37 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class Float < Element
+ def read(ef)
+ ins = ef.io.read(@data_size)
+ raise EOFError if (ins.size < @data_size)
+ @value = ins.unpack(@data_size == 4 ? "g" : "G")[0]
+
+ return self
+ end
+
+ def to_f
+ @value ||= 0.0
+ return @value
+ end
+
+ def to_s
+ return sprintf("%f", to_f)
+ end
+ end # class Float
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/float.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/master.rb
===================================================================
--- trunk/RbMatroska/ebml/master.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/master.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,69 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class Master < Element
+ attr_reader :children
+
+ def initialize(id, pos, data_size, size_length)
+ super(id, pos, data_size, size_length)
+ @children = Array.new
+ end
+
+ def read(ef)
+ @children = Array.new
+
+ size_left = data_size
+ while (size_left > 0)
+ e = ef.read_element_head
+ if (e.class != NilClass)
+ e.read(ef)
+ @children.push(e)
+ size_left -= e.element_size
+ e.skip(ef)
+ else
+ break
+ end
+ end
+
+ return self
+ end
+
+ def each(filter = Id.none)
+ @children.each do |c|
+ yield(c) if ((filter == Id.none) or (filter == c.id))
+ end
+ end
+
+ def find(filter)
+ id = nil
+ if (filter.class == Class)
+ id = filter.global_id
+ else
+ id = filter
+ end
+ @children.each { |c| return c if (c.id == id) }
+ return nil
+ end
+
+ def to_s
+ s = "{" + self.class.name + " " + super + " "
+ @children.each { |c| s += c.to_s + " " }
+ return s + "}"
+ end
+ end # class Master
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/master.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/sinteger.rb
===================================================================
--- trunk/RbMatroska/ebml/sinteger.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/sinteger.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,45 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class SInteger < Element
+ def read(ef)
+ byte = ef.io.readchar
+ if ((byte & 0x80) == 0x80)
+ @value = -1 << 8
+ else
+ @value = 0
+ end
+ @value |= byte
+ 2.upto(@data_size) do |i|
+ byte = ef.io.readchar
+ @value = (@value << 1) | byte
+ end
+
+ return self
+ end
+
+ def to_i
+ @value ||= 0
+ return @value
+ end
+
+ def to_s
+ return to_i.to_s
+ end
+ end # class SInteger
+end # module Ebml
+
Property changes on: trunk/RbMatroska/ebml/sinteger.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/string.rb
===================================================================
--- trunk/RbMatroska/ebml/string.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/string.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,32 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class String < Element
+ def read(ef)
+ @value = ef.io.read(@data_size)
+ raise DataError if (@value.size < @data_size)
+
+ return self
+ end
+
+ def to_s
+ @value ||= ""
+ return @value
+ end
+ end # class String
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/string.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/uinteger.rb
===================================================================
--- trunk/RbMatroska/ebml/uinteger.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/uinteger.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,39 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class UInteger < Element
+ def read(ef)
+ @value = 0
+ 1.upto(@data_size) do
+ byte = ef.io.readchar
+ @value = (@value << 8) | byte
+ end
+
+ return self
+ end
+
+ def to_i
+ @value ||= 0
+ return @value
+ end
+
+ def to_s
+ return to_i.to_s
+ end
+ end # class UInteger
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/uinteger.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: trunk/RbMatroska/ebml/unicodestring.rb
===================================================================
--- trunk/RbMatroska/ebml/unicodestring.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml/unicodestring.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -0,0 +1,32 @@
+#!/usr/bin/ruby
+
+#
+# Distributed under the MIT license
+# see the file COPYING for details
+# or visit http://www.opensource.org/licenses/mit-license.php
+#
+# $Id$
+#
+# A simple EBML parser based loosely on libebml and other
+# EBML implementations. It also contains classes for the global EBML
+# elements mentioned on # http://www.matroska.org/technical/specs/index.html
+#
+# Written by Moritz Bunkus <[email protected]>.
+#
+
+module Ebml
+ class UnicodeString < String
+ def read(ef)
+ @value = ef.io.read(@data_size)
+ raise DataError if (@value.size < @data_size)
+
+ return self
+ end
+
+ def to_s
+ @value ||= ""
+ return @value
+ end
+ end # class UnicodeString
+
+end # module Ebml
Property changes on: trunk/RbMatroska/ebml/unicodestring.rb
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Modified: trunk/RbMatroska/ebml.rb
===================================================================
--- trunk/RbMatroska/ebml.rb 2004-09-11 17:42:24 UTC (rev 780)
+++ trunk/RbMatroska/ebml.rb 2004-09-11 17:48:34 UTC (rev 781)
@@ -108,279 +108,17 @@
end
end
- class SInteger < Element
- def read(ef)
- byte = ef.io.readchar
- if ((byte & 0x80) == 0x80)
- @value = -1 << 8
- else
- @value = 0
- end
- @value |= byte
- 2.upto(@data_size) do |i|
- byte = ef.io.readchar
- @value = (@value << 8) | byte
- end
+ require "ebml/binary"
+ require "ebml/date"
+ require "ebml/float"
+ require "ebml/master"
+ require "ebml/sinteger"
+ require "ebml/string"
+ require "ebml/uinteger"
+ require "ebml/unicodestring"
- return self
- end
+ require "ebml/file"
- def to_i
- @value ||= 0
- return @value
- end
-
- def to_s
- return to_i.to_s
- end
- end
-
- class UInteger < Element
- def read(ef)
- @value = 0
- 1.upto(@data_size) do
- byte = ef.io.readchar
- @value = (@value << 8) | byte
- end
-
- return self
- end
-
- def to_i
- @value ||= 0
- return @value
- end
-
- def to_s
- return to_i.to_s
- end
- end
-
- class String < Element
- def read(ef)
- @value = ef.io.read(@data_size)
- raise DataError if (@value.size < @data_size)
-
- return self
- end
-
- def to_s
- @value ||= ""
- return @value
- end
- end
-
- class UnicodeString < String
- def read(ef)
- @value = ef.io.read(@data_size)
- raise DataError if (@value.size < @data_size)
-
- return self
- end
-
- def to_s
- @value ||= ""
- return @value
- end
- end
-
- class Binary < Element
- def read(ef)
- @value = ef.io.read(@data_size)
- raise EOFError if (@value.size < @data_size)
-
- return self
- end
-
- def to_s
- @value ||= Array.new
- return "[Binary size " + @data_size.to_s + "]"
- end
- end
-
- class Float < Element
- def read(ef)
- ins = ef.io.read(@data_size)
- raise EOFError if (ins.size < @data_size)
- @value = ins.unpack(@data_size == 4 ? "g" : "G")[0]
-
- return self
- end
-
- def to_f
- @value ||= 0.0
- return @value
- end
-
- def to_s
- return sprintf("%f", to_f)
- end
- end
-
- class Date < UInteger
- def to_s
- @value ||= 0
- return Time.at(@value / 1000000000).to_s
- end
- end
-
- class Master < Element
- attr_reader :children
-
- def initialize(id, pos, data_size, size_length)
- super(id, pos, data_size, size_length)
- @children = Array.new
- end
-
- def read(ef)
- @children = Array.new
-
- size_left = data_size
- while (size_left > 0)
- e = ef.read_element_head
- if (e.class != NilClass)
- e.read(ef)
- @children.push(e)
- size_left -= e.element_size
- e.skip(ef)
- else
- break
- end
- end
-
- return self
- end
-
- def each(filter = Id.none)
- @children.each do |c|
- yield(c) if ((filter == Id.none) or (filter == c.id))
- end
- end
-
- def find(filter)
- id = nil
- if (filter.class == Class)
- id = filter.global_id
- else
- id = filter
- end
- @children.each { |c| return c if (c.id == id) }
- return nil
- end
-
- def to_s
- s = "{" + self.class.name + " " + super + " "
- @children.each { |c| s += c.to_s + " " }
- return s + "}"
- end
- end
-
- class File
- attr_reader :io
-
- def initialize(io)
- @io = io
- end
-
- def entity_size?(byte, mask_bits = false)
- size = 0
- mask = 0
- if ((byte & 0x80) == 0x80)
- size = 1
- mask = 0x7f
- elsif ((byte & 0xc0) == 0x40)
- size = 2
- mask = 0x3f
- elsif ((byte & 0xe0) == 0x20)
- size = 3
- mask = 0x1f
- elsif ((byte & 0xf0) == 0x10)
- size = 4
- mask = 0x0f
- elsif ((byte & 0xf8) == 0x08)
- size = 5
- mask = 0x07
- elsif ((byte & 0xfc) == 0x04)
- size = 6
- mask = 0x03
- elsif ((byte & 0xfe) == 0x02)
- size = 7
- mask = 0x01
- elsif (byte == 1)
- size = 8
- mask = 0x00
- else
- raise DataError
- end
- byte = byte & mask if (mask_bits)
- return [size, byte]
- end
-
- def read_id
- id = 0
-
- byte = @io.getc
- return nil if (byte == nil)
-
- esize = entity_size?(byte)
- raise IdError if (esize[0] > 4)
- id = esize[1]
-
- 1.upto(esize[0] - 1) do |i|
- byte = @io.readchar
- id = id * 256 + byte
- end
- return Id.new(id, esize[0])
- end
-
- def read_size
- byte = @io.getc
- return nil if (byte == nil)
-
- esize = entity_size?(byte, true)
-
- size = esize[1]
- 1.upto(esize[0] - 1) do
- byte = @io.readchar
- size = size * 256 + byte
- end
- return [size, esize[0]]
- end
-
- def read_element_head
- pos = @io.pos
- id = read_id
- return nil if (id.class == NilClass)
- size = read_size
- return nil if (size.class == NilClass)
- return find_class_for_id(id).new(id, pos, size[0], size[1])
- end
-
- def map_ids(namespace = nil)
- @id_mapping = Hash.new
-
- rebml = Regexp.new("^Ebml::")
- rns = nil
- if (namespace != nil)
- require namespace.downcase
- rns = Regexp.new("^#{namespace}::")
- end
- ObjectSpace.each_object(Class) do |c|
- if (((rebml =~ c.name) or ((rns != nil) and (rns =~ c.name))) and
- (c.respond_to?("global_id")))
- @id_mapping[c.global_id.value] = c
- end
- end
- end
-
- def find_class_for_id(id)
- raise Error, "IDs not mapped" unless (@id_mapping)
- return @id_mapping[id.value] if (@id_mapping.has_key?(id.value))
- return Element
- end
- end # class EFile
-
-
class Head < Master
def Head.global_id
@@id ||= Id.new(0x1a45dfa3, 4)
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