Writ: Difference between revisions

From XiphWiki
Jump to navigation Jump to search
No edit summary
(fix redirect)
 
(8 intermediate revisions by 7 users not shown)
Line 1: Line 1:
== Introduction ==
#REDIRECT [[OggWrit]]
Ogg Writ is a text phrase codec.  While its primary purpose is to embed
subtitles or captions in a Theora stream, its design makes it useful
for many other purposes.  It could provide lyrics to song encoded in
Vorbis, a transcript to a political debate encoded in Speex, or even
incorporate a live chat session as part of a continuous video stream.
 
One of the unique aspects of Writ is its discontinuous nature, that is,
unlike other Ogg codecs the granules for which seperate packets effect
may overlap.  See the Granules and Muxing section
below for how this works.
 
 
=== SVN ===
Current Ogg Writ development is on Xiph SVN as /trunk/writ/.  It's
being developed to use libogg2, so you'll need both to work on it.
The reference encoder and decoder are available as part of the py-ogg2
package which is available on Xiph SVN as /trunk/py-ogg2/.
 
 
<B>This is a (near final) working draft of the spec</B><BR>
Writ has been designed so that encoders/decoders can support a bare
minimum and be fully compatable with future subversions. Each subversion
adds a new feature, some building on others, adding a new header packet
and likely a new field to each body packet.
<P>
Decoders should ignore header packets beyond what they were written to
support and also ignore extra fields in data packets beyond their
current version.  This allows new features to be added without requiring
that all software, or even most software, to support them.
<P>
We will be conservative about adding future subversions.
 
<pre>
Header Packet 0 (BOS, 16 bytes):
0x00                                  ( 8 bit Header 0)
"writ" (LSB 0x74697277)                (32 bit codec identification)
version                                ( 8 bit unsigned int, 0 = Alpha)
subversion                            ( 8 bit unsigned int)
granulerate_numerator                  (32 bit unsigned int)
granulerate_denominator                (32 bit unsigned int)
 
Data Packet (each):
0xFF                                  ( 8 bit 0xFF = data packet)
granule_start                          (64 bit signed integer)
granule_duration                      (32 bit unsigned integer)
text_length                            ( 8 bit unsigned integer)
text_string                            (variable-length UTF-8 string)
 
 
<B>Subversion 1 adds multiple language support</B>
 
Header Packet 1 (Language Definition, 8+ bytes) :
0x01                                  ( 8 bit Header 1)
"writ" (LSB 0x74697277)                (32 bit codec identification)
num_languages                          ( 8 bit unsigned int)
[repeated 1+num_languages times] :
  language_length                      ( 8 bit unsigned int)
  language_string                      (0+language_length rfc3066)
  language_desc_length                ( 8 bit unsigned int)
  language_desc_string                (0+language_desc_length UTF-8)
 
Data Packet (each):
0xFF                                  ( 8 bit 0xFF = data packet)
granule_start                          (64 bit signed integer)
granule_duration                      (32 bit unsigned integer)
[repeated num_languages times] :
  text_length                          ( 8 bit unsigned integer)
  text_string                          (variable-length UTF-8 string)
 
 
<B>Subversion 2 adds text window support</B>
 
Header Packet 2 (Window Definition, 10+ bytes) :
0x02                                  ( 8 bit Header 2)
"writ" (LSB 0x74697277)                (32 bit codec identification)
location_scale_x                      (16 bit unsigned int)
location_scale_y                      (16 bit unsigned int)
num_windows                            ( 8 bit unsigned int)
[if (window_num > 0) repeated window_num times] :
  location_x                          (variable length, see below)
  location_y                          (variable length, see below)
  location_width                      (variable length, see below)
  location_height                      (variable length, see below)
  alignment_x                          ( 2 bit alignment, see below)
  alignment_y                          ( 2 bit alignment, see below)
 
Data Packet (each):
0xFF                                  ( 8 bit 0xFF = data packet)
granule_start                          (64 bit signed integer)
granule_duration                      (32 bit unsigned integer)
[repeated num_languages times] :
  text_length                          ( 8 bit unsigned integer)
  text_string                          (variable-length UTF-8 string)
[if (window_num > 1)] :
  window_id                            ( 8 bit unsigned integer)
 
 
<B>Example Stream</B>
Header Packet 0
  version 0
  subversion 2
  granulenum 1
  granuledom 1
\x00writ\x00\x02\x01\x00\x00\x00\x01\x00\x00\x00
 
Header Packet 1
  num_languages 2
  Language 0:
    language en
    language_desc English
  Language 1:
    language es
    language_desc Spanish
\x01writ\x01\x02en\x07English\x02es\x07Spanish
 
Header Packet 2
  location_scale_x 4000 (12 bits)
  location_scale_y 270  ( 9 bits)
  num_windows 2
  Window 0:
    location_x 1
    location_y 2
    location_width 3
    location_height 1
    alignment_x 3 (Full)
    alignment_y 3 (Full)
  Window 1:
    location_x 5
    location_y 6
    location_width 7
    location_height 1
    alignment_x 3 (Full)
    alignment_y 3 (Full)
\x02writ\xa0\x0f\x0e\x01\x02\x01\x20\x60\x00\x02\x7c\x01\x18\x38\x80\x00\x0f
 
Phrase Packet:
  granule_start 5
  granule_duration 10
  Language 0: "Hello World!"
  Language 1: "Hola, Mundo!"
  window_id 0
\xff\x05\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x0cHello World!\x0cHola, Mundo!\x00
 
Phrase Packet:
  granule_start 12
  granule_duration 15
  Language 0: "It's a beautiful day to be born."
  Language 1: "Es un día hermoso para que se llevará."
  window_id 1
\xff\x0c\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x20It's a beautiful day to be born.\x26Es un d\xeda hermoso para que se llevar\xe1.\x01
 
 
</pre>
 
== Granules and Muxing ==
 
Granulepos in Writ (as well as future discontinuous codecs) will be by
start time, not end time, that the data in a given page is tagged for.
This greatly simplifies this specification (see the old method below).
 
All Writ phrases will be provided at and given the granulepos of their
start time, ordered by their start time within the logical bitstream.
 
Phrase packets with long durations should be repeated in the logical
bitstream at regular intervals to ensure that a player seeking to the
middle of their duration will still see them.  These packet copies will
be identical to their original, including the start and duration fields,
the granulepos of the page they reside on will be incremented for each
copy to place it forward on the logical bitstream.
 
No two phrases can start on the same granule. On decoding, each packets'
start granule is checked against already known packets.  If a match is
found the new packet is ignored.  This prevents phrase copies from being
interpreted as new phrases.
 
== Seeking Example ==
<pre>
 
Here is a timeline (granule numbers at top, read down) of a sample stream:
 
                        <- Granules ->
0000000000111111111122222222223333333333444444444455555555556666666666
0123456789012345678901234567890123456789012345678901234567890123456789
___________  ____________  ____________  ____________  _____________
|_Vorbis____||_Vorbis_____||_Vorbis_____||_Vorbis_____||_Vorbis______|
____________________  ____________________________________
|_A____________>_____| |_D____________>______________>______|
    _________      ___    __________    ___________
    |_B_______|    |_C_|  |_E________|  |_F_________|
 
(note: these have been seperated vertically for easy viewing only)
 
Packet  Granule Description
V H0  0      Vorbis Header 0x01 (page by itself)
W H0  0      Writ Header 0 (page by itself)
V H1  0      Vorbis Header 0x03
V H2  0      Vorbis Header 0x05
W H1  0      Writ Header 1 (Language Defs)
W H2  0      Writ Header 2 (Window Defs)
W A    0      Writ Phrase A
W B    4      Writ Phrase B
V      12      Vorbis 0-12
W A    15      Writ Phrase A
W C    19      Writ Phrase C
W D    23      Writ Phrase D
V      26      Vorbis 13-26
W E    26      Writ Phrase E
W D    38      Writ Phrase D
V      40      Vorbis 27-40
W F    41      Writ Phrase F
W D    53      Writ Phrase D (EOF)
V      54      Vorbis 41-54
V      69      Vorbis 55-69 (EOF)
 
</pre>
 
Player begins decoding at beginning of stream.  It reads the BOS pages
for both codecs, then receives a non-BOS page.  At this point it knows
that it has two bitstreams to decode and has resolved that one is Writ
and the other Vorbis.  It'll continue processing the headers for both.
 
Next it's going to find two Writ packets (phrases A and B) and toss them
into libwrit.  Then it'll get to the first Vorbis data page.  It now has
data from both bitstreams, and it knows (from the granulepos on the
Vorbis page) that it has enough data to run until 12.  If there were any
Writ packets before 12 they would have appeared first.
 
At around granule 9 the listener seeks forward to 24.  This will cause a
rapid seek through the file to find the first page with a granulepos
greater than the seek position and begin decoding at that point.
 
It'll find a Vorbis packet containing 13-26 (and not use 13-23) and Writ
phrase E.  Again, having data from both bitstreams it can begin playing.
D would normally appear at granule 24 but is not known about yet.  The
player knows that this is only enough to decode until 26 so, knowing
enough to prebuffer, continues reading the file as it plays the media.
 
The next packet it finds is Writ phrase D, and passing it to libwrit, is
found that the current granulepos is within the duration.  It is thus
displayed immediatly, as it's prebuffered, without waiting for
granulepos 38.  It'll keep reading (because the maximum decoded Vorbis
is still 26) and find a Vorbis packet with a 40 granulepos.
 
As it nears 38 it'll read the file again and find Writ phrase F, which
takes it out to 41.  Vorbis only goes until 40, so it'll have to keep
reading until the next Vorbis packet.
 
Next it'll find Writ phrase D, which will be ignored by libwrit because
phrase D is already known (matches start granule of earlier D), and the
EOF on that page marks this as the last of the Writ stream.
 
It'll continue reading for the next Vorbis data and find the packet
for granule 54, followed by the Vorbis packet for granule 69.  With that
it's EOS, EOF, finished.
 
This is of course a simplistic example, Writ and Vorbis will rarely have
granules which equal the same amount of time.  Each bitstream has its'
own granule -> time mapping which is calculated when muxing concurrent
bitstreams within the file.  So if there are 44100 Vorbis granules
per second and only 4 Writ granules per second, pages would be ordered
as W25 V297892 W31 V385932 W39 W41 V463057 etc.  The logic used in the
above example works after this granule-time mapping is calculated.
 
 
== Ongoing Discussion ==
 
* How does this get "encoded" and "merged"?
** &lt;purple_haese&gt; The muxing rule is pages are arranged in ascending order by the timestamp that is represented by their granulepos.
 
* For what reason is the 0x00 and 0xFF byte at the beginning of header and data packet respectively?
** &lt;xiphmont&gt; If, after a seek, I hand your codec a header packet, what does the codec do?
** &lt;xiphmont&gt; It does *nothing*.  If I haven't told it to reset, the header is not data, *it must ignore the header*.
** &lt;xiphmont&gt; this eliminates a huge raft of special cases in Ogg seeking.
 
 
 
== "The Old Way" ==
<B>The section below is for historical purposes only!</B>
<pre>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2003/08/17
  In a lengthy discussion with Monty and Derf the decidion to change the
  behavior of discontinuous bitstreams in Ogg, or rather, extend the
  current Ogg specification to handle discontinuous codecs, was made.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
</pre>
 
The Ogg granulepos of each page is equal to the expiration of the text,
packets are ordered by expiration time and may overlap.  So, at or before
text A is to be displayed, the following sequence is included:
 
<pre>
Physical        Text    Text    Text
Location        Packet  Start  Expire  (text expire = page granulepos)
---------------------------------------
00              B      04      14
00              D      19      23
00              C      09      24
00              F      27      34
00              E      26      37
00              G      35      47
00              H      42      54
00              A      00      59
51              I      51      66
</pre>
So B, D, C, F, E, G, and H are all defined before A, building a FIFO (first
in first out) buffer in the player.  Encoders should limit the extend of this
behavior to reduce nessesary buffer size on the player side by prematurly
expiring captions and recreating them periodically.
 
The screen should not be updated with the new captions until they've all
been processed to prevent "flicker".  New caption data to the same position
will scroll the previous data upwards with no line breaks seperating them
(unless present in text).
[http://www.shop263.com/i-45/1.htm 107粘合剂]
[http://www.shop263.com/i-45/2.htm 内墙涂料]
[http://www.shop263.com/i-45/3.htm 内外浸塑防腐管道]
[http://www.shop263.com/i-45/4.htm 内外墙涂料]
[http://www.shop263.com/i-45/5.htm 内外墙专用腻子粉]
[http://www.shop263.com/i-45/6.htm 纳米丙稀酸外墙乳胶漆]
[http://www.shop263.com/i-45/7.htm 纳米材料]
[http://www.shop263.com/i-45/8.htm 纳米改性氟碳涂料]
[http://www.shop263.com/i-45/9.htm 纳米涂料]
[http://www.shop263.com/i-45/10.htm 纳米余辉自发光涂料]
[http://www.shop263.com/i-45/11.htm 耐腐蚀树脂]
[http://www.shop263.com/i-45/12.htm 耐高温特种涂料]
[http://www.shop263.com/i-45/13.htm 耐磨地坪骨料]
[http://www.shop263.com/i-45/14.htm 耐磨地坪漆]
[http://www.shop263.com/i-45/15.htm 偶联剂]
[http://www.shop263.com/i-45/16.htm 哌啶系列衍生物]
[http://www.shop263.com/i-45/17.htm 膨胀型过氯乙烯]
[http://www.shop263.com/i-45/18.htm 皮带运输机自动纠偏装置]
[http://www.shop263.com/i-45/19.htm 皮具边油]
[http://www.shop263.com/i-45/20.htm 偏苯三酸酐]
[http://www.shop263.com/i-45/21.htm 企口漆]
[http://www.shop263.com/i-45/22.htm 汽车门窗密封条植绒胶粘剂]
[http://www.shop263.com/i-45/23.htm 汽车密封胶]
[http://www.shop263.com/i-45/24.htm 汽车漆]
[http://www.shop263.com/i-45/25.htm 汽车涂料]
[http://www.shop263.com/i-45/26.htm 汽车修补漆]
[http://www.shop263.com/i-45/27.htm 汽油辛烷]
[http://www.shop263.com/i-45/28.htm 强膜防水漆]
[http://www.shop263.com/i-45/29.htm 羟基硅油]
[http://www.shop263.com/i-45/30.htm 羟基乙腈]
[http://www.shop263.com/i-45/31.htm 清漆]
[http://www.shop263.com/i-45/32.htm 全丙高弹性外墙乳胶漆]
[http://www.shop263.com/i-45/33.htm 全天候硅丙外墙漆]
[http://www.shop263.com/i-45/34.htm 全息铝箔]
[http://www.shop263.com/i-45/35.htm 全息烟膜]
[http://www.shop263.com/i-45/36.htm 热固化阻焊油墨]
[http://www.shop263.com/i-45/37.htm 热固性半光无光型粉末]
[http://www.shop263.com/i-45/38.htm 热固性粉末]
[http://www.shop263.com/i-45/39.htm 热固性粉末涂料]
[http://www.shop263.com/i-45/40.htm 热固性环氧]
[http://www.shop263.com/i-45/41.htm 热固性环氧聚酯粉末涂料]
[http://www.shop263.com/i-45/42.htm 热固性环氧型粉末涂料]
[http://www.shop263.com/i-45/43.htm 重防腐油漆]
[http://www.shop263.com/i-45/44.htm 助流剂]
[http://www.shop263.com/i-45/45.htm 转炉喷补料]
[http://www.shop263.com/i-45/46.htm 转移膜]
[http://www.shop263.com/i-45/47.htm 装饰美术纹理型粉末涂料]
[http://www.shop263.com/i-45/48.htm 装饰纸色浆]
[http://www.shop263.com/i-45/49.htm 装修漆]
[http://www.shop263.com/i-45/50.htm 紫外固化]
[http://www.shop263.com/i-45/51.htm 紫外光固化]
[http://www.shop263.com/i-45/52.htm 紫外光固化产品]
[http://www.shop263.com/i-45/53.htm 紫外光固化涂料]
[http://www.shop263.com/i-45/54.htm 紫外光硬化阻焊油墨]
[http://www.shop263.com/i-45/55.htm 自动涂装生产]
[http://www.shop263.com/i-45/56.htm 自乳化丙烯酸环氧树脂]
[http://www.shop263.com/i-45/57.htm 阻聚剂]
[http://www.shop263.com/i-45/58.htm 阻燃剂]
[http://www.shop263.com/i-45/59.htm 阻燃两用装修漆]
[http://www.shop263.com/i-45/60.htm 阻燃吸音装饰板]
[http://www.shop263.com/i-45/61.htm 钻井泥浆助剂]
[http://www.shop263.com/i-45/62.htm 醋酸丁酯和乙酯]
[http://www.shop263.com/i-45/63.htm 醋酸乙烯无光乳胶漆]
[http://www.shop263.com/i-45/64.htm 大孔螯合型离子交换树脂]
[http://www.shop263.com/i-45/65.htm 单力建筑胶]
[http://www.shop263.com/i-45/66.htm 弹性凹凸漆]
[http://www.shop263.com/i-45/67.htm 弹性建筑密封胶]
[http://www.shop263.com/i-45/68.htm 弹性胶浆]
[http://www.shop263.com/i-45/69.htm 弹性涂料]
[http://www.shop263.com/i-45/70.htm 弹性质感涂料]
[http://www.shop263.com/i-45/71.htm 导电漆]
[http://www.shop263.com/i-45/72.htm 导静电地坪涂料]
[http://www.shop263.com/i-45/73.htm 道路沥青]
[http://www.shop263.com/i-45/74.htm 灯用卤磷酸钙荧光粉]
[http://www.shop263.com/i-45/75.htm 低温固化粉末型]
[http://www.shop263.com/i-45/76.htm 底色漆]
[http://www.shop263.com/i-45/77.htm 地板漆]
[http://www.shop263.com/i-45/78.htm 地坪涂料]
[http://www.shop263.com/i-45/79.htm 电线瓷瓶]
[http://www.shop263.com/i-45/80.htm 饺子模]
[http://www.shop263.com/i-45/81.htm 结构胶]
[http://www.shop263.com/i-45/82.htm 界面剂]
[http://www.shop263.com/i-45/83.htm 金刚石磨轮]
[http://www.shop263.com/i-45/84.htm 金属防腐蚀专用涂料]
[http://www.shop263.com/i-45/85.htm 金属漆]
[http://www.shop263.com/i-45/86.htm 金属闪光漆]
[http://www.shop263.com/i-45/87.htm 金属外壳涂装]
[http://www.shop263.com/i-45/88.htm 金属装饰漆]
[http://www.shop263.com/i-45/89.htm 浸渍料]
[http://www.shop263.com/i-45/90.htm 静电喷涂]
[http://www.shop263.com/i-45/91.htm 静电涂装成套设备]
[http://www.shop263.com/i-45/92.htm 静电植绒胶]
[http://www.shop263.com/i-45/93.htm 聚氨脂灌封料]
[http://www.shop263.com/i-45/94.htm 聚氨酯]
[http://www.shop263.com/i-45/95.htm 聚氨酯单组份防腐漆]
[http://www.shop263.com/i-45/96.htm 聚氨酯粉末涂料]
[http://www.shop263.com/i-45/97.htm 聚氨酯互穿网络防腐涂料]
[http://www.shop263.com/i-45/98.htm 硬胶漆]
[http://www.shop263.com/i-45/99.htm 硬脂酸]
[http://www.shop263.com/i-45/100.htm 硬脂酸锌]
[http://www.shop263.com/i-45/101.htm 硬质UV哑光涂料]
[http://www.shop263.com/i-45/102.htm 硬质UV罩光涂]
[http://www.shop263.com/i-45/103.htm 硬质UV罩光涂料]
[http://www.shop263.com/i-45/104.htm 硬质聚氨酯泡沫]
[http://www.shop263.com/i-45/105.htm 钢结构防火涂料]
[http://www.shop263.com/i-45/106.htm 钢结构隔热]
[http://www.shop263.com/i-45/107.htm 钢性抗渗腻子]
[http://www.shop263.com/i-45/108.htm 高档环保水性建筑涂料]
[http://www.shop263.com/i-45/109.htm 高档聚酯漆]
[http://www.shop263.com/i-45/110.htm 高分子助剂]
[http://www.shop263.com/i-45/111.htm 高光外墙专用乳液]
[http://www.shop263.com/i-45/112.htm 高级彩色瓦面漆]
[http://www.shop263.com/i-45/113.htm 高级彩色屋面防水涂料]
[http://www.shop263.com/i-45/114.htm 高级防火涂料]
[http://www.shop263.com/i-45/115.htm 高级聚氨酯漆]
[http://www.shop263.com/i-45/116.htm 高级闪光雨线]
[http://www.shop263.com/i-45/117.htm 高级丝光乳胶漆]
[http://www.shop263.com/i-45/118.htm 蓝色粉末材料]
[http://www.shop263.com/i-45/119.htm 镭射烟用衬纸]
[http://www.shop263.com/i-45/120.htm 冷库硬质聚氨酯泡沫]
[http://www.shop263.com/i-45/121.htm 冷施工橡塑防水防腐涂料]
[http://www.shop263.com/i-45/122.htm 连铸保护渣]
[http://www.shop263.com/i-45/123.htm 亮光耐酒精硬胶油墨]
[http://www.shop263.com/i-45/124.htm 邻苯二甲酸二丁酯]
[http://www.shop263.com/i-45/125.htm 磷化液]
[http://www.shop263.com/i-45/126.htm 流平剂]
[http://www.shop263.com/i-45/127.htm 流态化石灰粉]
[http://www.shop263.com/i-45/128.htm 热固性聚酯型粉末涂料]
[http://www.shop263.com/i-45/129.htm 热固性美术纹理型粉末涂料]
[http://www.shop263.com/i-45/130.htm 热喷涂锌]
[http://www.shop263.com/i-45/131.htm 热熔反光标线涂料]
[http://www.shop263.com/i-45/132.htm 热熔性树脂]
[http://www.shop263.com/i-45/133.htm 热塑涂料]
[http://www.shop263.com/i-45/134.htm 人造大理石]
[http://www.shop263.com/i-45/135.htm 溶剂型工业涂料]
[http://www.shop263.com/i-45/136.htm 溶剂型聚酰]
[http://www.shop263.com/i-45/137.htm 溶剂型聚酰胺]
[http://www.shop263.com/i-45/138.htm 有机硅改性丙烯酸外墙涂料]
[http://www.shop263.com/i-45/139.htm 鞣剂]
[http://www.shop263.com/i-45/140.htm 乳胶漆]
[http://www.shop263.com/i-45/141.htm 乳液]
[http://www.shop263.com/i-45/142.htm 锐钛型钛白粉]
[http://www.shop263.com/i-45/143.htm 三聚氯氰]
[http://www.shop263.com/i-45/144.htm 三片金属罐外涂料]
[http://www.shop263.com/i-45/145.htm 三羟甲基丙烷三丙烯酸酯]
[http://www.shop263.com/i-45/146.htm 三嗪类除草剂]
[http://www.shop263.com/i-45/147.htm 三烷基]
[http://www.shop263.com/i-45/148.htm 三元乙丙橡胶]
[http://www.shop263.com/i-45/149.htm 色标卡]
[http://www.shop263.com/i-45/150.htm 深酞兰氨基面漆]
[http://www.shop263.com/i-45/151.htm 石材防护剂]
[http://www.shop263.com/i-45/152.htm 石头漆]
[http://www.shop263.com/i-45/153.htm 食品级氟涂料]
[http://www.shop263.com/i-45/154.htm 室内乳胶漆]
[http://www.shop263.com/i-45/155.htm 室温固化31570X]
[http://www.shop263.com/i-45/156.htm 兽用抗生素原料药]
[http://www.shop263.com/i-45/157.htm 叔丙乳液]
[http://www.shop263.com/i-45/158.htm 叔醋乳液]
[http://www.shop263.com/i-45/159.htm 树脂]
[http://www.shop263.com/i-45/160.htm 树脂胶版油墨]
[http://www.shop263.com/i-45/161.htm 树脂类地坪]
[http://www.shop263.com/i-45/162.htm 双组份烤漆]
[http://www.shop263.com/i-45/163.htm 水不漏]
[http://www.shop263.com/i-45/164.htm 水处理产品]
[http://www.shop263.com/i-45/165.htm 水墨]
[http://www.shop263.com/i-45/166.htm 水性氟碳漆]
[http://www.shop263.com/i-45/167.htm 水性工业涂料]
[http://www.shop263.com/i-45/168.htm 水性光油]
[http://www.shop263.com/i-45/169.htm 水性环保型功能性涂料]
[http://www.shop263.com/i-45/170.htm 水性涂料]
[http://www.shop263.com/i-45/171.htm 水性助剂]
[http://www.shop263.com/i-45/172.htm 水性自乳化双酚A环氧树脂]
[http://www.shop263.com/i-45/173.htm 丝光乳胶漆]
[http://www.shop263.com/i-45/174.htm 丝面漆专用乳液]
[http://www.shop263.com/i-45/175.htm 丝网油墨]
[http://www.shop263.com/i-45/176.htm 塑胶UV上光油]
[http://www.shop263.com/i-45/177.htm 塑料薄膜油墨]
[http://www.shop263.com/i-45/178.htm 塑料助剂]
[http://www.shop263.com/i-45/179.htm 碳钢食品容器内壁防腐涂料]
[http://www.shop263.com/i-45/180.htm 陶瓷粉]
[http://www.shop263.com/i-45/181.htm 特富龙涂料]
[http://www.shop263.com/i-45/182.htm 特种工业涂料]
[http://www.shop263.com/i-45/183.htm 特种油墨]
[http://www.shop263.com/i-45/184.htm 天然真石漆]
[http://www.shop263.com/i-45/185.htm 填眼灰]
[http://www.shop263.com/i-45/186.htm 铁沟捣打料]
[http://www.shop263.com/i-45/187.htm 涂料色浆]
[http://www.shop263.com/i-45/188.htm 涂料用丙烯酸树脂]
[http://www.shop263.com/i-45/189.htm 涂料用树脂]
[http://www.shop263.com/i-45/190.htm 脱塑剂]
[http://www.shop263.com/i-45/191.htm 外墙平涂类]
[http://www.shop263.com/i-45/192.htm 外墙普通面涂料]
[http://www.shop263.com/i-45/193.htm 外墙涂料]
[http://www.shop263.com/i-45/194.htm 外墙有色底涂料]
[http://www.shop263.com/i-45/195.htm 万能胶]
[http://www.shop263.com/i-45/196.htm 网版印刷油墨]
[http://www.shop263.com/i-45/197.htm 微型球铝粉]
[http://www.shop263.com/i-45/198.htm 无苯稀释剂]
[http://www.shop263.com/i-45/199.htm 无毒固化剂]
[http://www.shop263.com/i-45/200.htm 无毒玩具漆]
[http://www.shop263.com/i-45/201.htm 无毒无溶剂涂料]
[http://www.shop263.com/i-45/202.htm 五氧化二钒]
[http://www.shop263.com/i-45/203.htm 吸附树脂]
[http://www.shop263.com/i-45/204.htm 象牙白氨基面漆]
[http://www.shop263.com/i-45/205.htm 橡胶金属热硫化胶粘剂]
[http://www.shop263.com/i-45/206.htm 橡胶漆]
[http://www.shop263.com/i-45/207.htm 消泡剂]
[http://www.shop263.com/i-45/208.htm 硝基类系列涂料]
[http://www.shop263.com/i-45/209.htm 硝基漆]
[http://www.shop263.com/i-45/210.htm 鞋材油漆]
[http://www.shop263.com/i-45/211.htm 仿瓷涂料]
[http://www.shop263.com/i-45/212.htm 水性防瓷釉涂料]
[http://www.shop263.com/i-45/213.htm 压裂弹]
[http://www.shop263.com/i-45/214.htm 压敏陶瓷]
[http://www.shop263.com/i-45/215.htm 哑光厚质高弹弹性乳胶漆]
[http://www.shop263.com/i-45/216.htm 亚光内墙乳胶]
[http://www.shop263.com/i-45/217.htm 亚光内墙乳胶漆]
[http://www.shop263.com/i-45/218.htm 岩棉制品]
[http://www.shop263.com/i-45/219.htm 颜料糊]
[http://www.shop263.com/i-45/220.htm 氧化络绿]
[http://www.shop263.com/i-45/221.htm 液体氰化钠]
[http://www.shop263.com/i-45/222.htm 乙烯基异丁基醚]
[http://www.shop263.com/i-45/223.htm 乙烯基酯]
[http://www.shop263.com/i-45/224.htm 乙氧基化]
[http://www.shop263.com/i-45/225.htm 异氰酸酯]
[http://www.shop263.com/i-45/226.htm 印花色浆]
[http://www.shop263.com/i-45/227.htm 印花粘合剂]
[http://www.shop263.com/i-45/228.htm 印刷包装胶粘剂]
[http://www.shop263.com/i-45/229.htm 油封]
[http://www.shop263.com/i-45/230.htm 油漆催干剂]
[http://www.shop263.com/i-45/231.htm 油漆专用稀释剂]
[http://www.shop263.com/i-45/232.htm 油田污水处理系列药剂]
[http://www.shop263.com/i-45/233.htm 油性丙烯酸树脂]
[http://www.shop263.com/i-45/234.htm 油性高抗碱底漆]
[http://www.shop263.com/i-45/235.htm 有机膨润土]
[http://www.shop263.com/i-45/236.htm 有机锡]
[http://www.shop263.com/i-45/237.htm 玉石钢化涂料]
[http://www.shop263.com/i-45/238.htm 原子灰]
[http://www.shop263.com/i-45/239.htm 增稠剂]
[http://www.shop263.com/i-45/240.htm 增密双层胶辊]
[http://www.shop263.com/i-45/241.htm 粘合粘合剂]
[http://www.shop263.com/i-45/242.htm 珍珠白氨基面漆]
[http://www.shop263.com/i-45/243.htm 振利保温材料]
[http://www.shop263.com/i-45/244.htm 振利涂料]
[http://www.shop263.com/i-45/245.htm 整体耐磨防腐地面涂料]
[http://www.shop263.com/i-45/246.htm 纸品UV涂料]
[http://www.shop263.com/i-45/247.htm 制革助剂]
[http://www.shop263.com/i-45/248.htm 中间包喷涂料]
[http://www.shop263.com/i-45/249.htm 中密度纤维板]
[http://www.shop263.com/i-45/250.htm 中涂漆]
[http://www.shop263.com/i-45/251.htm 种子包衣剂]
[http://www.shop263.com/i-45/252.htm 本色漆]
http://www.shop263.com/i-45/1.htm
http://www.shop263.com/i-45/2.htm
http://www.shop263.com/i-45/3.htm
http://www.shop263.com/i-45/4.htm
http://www.shop263.com/i-45/5.htm
http://www.shop263.com/i-45/6.htm
http://www.shop263.com/i-45/7.htm
http://www.shop263.com/i-45/8.htm
http://www.shop263.com/i-45/9.htm
http://www.shop263.com/i-45/10.htm
http://www.shop263.com/i-45/11.htm
http://www.shop263.com/i-45/12.htm
http://www.shop263.com/i-45/13.htm
http://www.shop263.com/i-45/14.htm
http://www.shop263.com/i-45/15.htm
http://www.shop263.com/i-45/16.htm
http://www.shop263.com/i-45/17.htm
http://www.shop263.com/i-45/18.htm
http://www.shop263.com/i-45/19.htm
http://www.shop263.com/i-45/20.htm
http://www.shop263.com/i-45/21.htm
http://www.shop263.com/i-45/22.htm
http://www.shop263.com/i-45/23.htm
http://www.shop263.com/i-45/24.htm
http://www.shop263.com/i-45/25.htm
http://www.shop263.com/i-45/26.htm
http://www.shop263.com/i-45/27.htm
http://www.shop263.com/i-45/28.htm
http://www.shop263.com/i-45/29.htm
http://www.shop263.com/i-45/30.htm
http://www.shop263.com/i-45/31.htm
http://www.shop263.com/i-45/32.htm
http://www.shop263.com/i-45/33.htm
http://www.shop263.com/i-45/34.htm
http://www.shop263.com/i-45/35.htm
http://www.shop263.com/i-45/36.htm
http://www.shop263.com/i-45/37.htm
http://www.shop263.com/i-45/38.htm
http://www.shop263.com/i-45/39.htm
http://www.shop263.com/i-45/40.htm
http://www.shop263.com/i-45/41.htm
http://www.shop263.com/i-45/42.htm
http://www.shop263.com/i-45/43.htm
http://www.shop263.com/i-45/44.htm
http://www.shop263.com/i-45/45.htm
http://www.shop263.com/i-45/46.htm
http://www.shop263.com/i-45/47.htm
http://www.shop263.com/i-45/48.htm
http://www.shop263.com/i-45/49.htm
http://www.shop263.com/i-45/50.htm
http://www.shop263.com/i-45/51.htm
http://www.shop263.com/i-45/52.htm
http://www.shop263.com/i-45/53.htm
http://www.shop263.com/i-45/54.htm
http://www.shop263.com/i-45/55.htm
http://www.shop263.com/i-45/56.htm
http://www.shop263.com/i-45/57.htm
http://www.shop263.com/i-45/58.htm
http://www.shop263.com/i-45/59.htm
http://www.shop263.com/i-45/60.htm
http://www.shop263.com/i-45/61.htm
http://www.shop263.com/i-45/62.htm
http://www.shop263.com/i-45/63.htm
http://www.shop263.com/i-45/64.htm
http://www.shop263.com/i-45/65.htm
http://www.shop263.com/i-45/66.htm
http://www.shop263.com/i-45/67.htm
http://www.shop263.com/i-45/68.htm
http://www.shop263.com/i-45/69.htm
http://www.shop263.com/i-45/70.htm
http://www.shop263.com/i-45/71.htm
http://www.shop263.com/i-45/72.htm
http://www.shop263.com/i-45/73.htm
http://www.shop263.com/i-45/74.htm
http://www.shop263.com/i-45/75.htm
http://www.shop263.com/i-45/76.htm
http://www.shop263.com/i-45/77.htm
http://www.shop263.com/i-45/78.htm
http://www.shop263.com/i-45/79.htm
http://www.shop263.com/i-45/80.htm
http://www.shop263.com/i-45/81.htm
http://www.shop263.com/i-45/82.htm
http://www.shop263.com/i-45/83.htm
http://www.shop263.com/i-45/84.htm
http://www.shop263.com/i-45/85.htm
http://www.shop263.com/i-45/86.htm
http://www.shop263.com/i-45/87.htm
http://www.shop263.com/i-45/88.htm
http://www.shop263.com/i-45/89.htm
http://www.shop263.com/i-45/90.htm
http://www.shop263.com/i-45/91.htm
http://www.shop263.com/i-45/92.htm
http://www.shop263.com/i-45/93.htm
http://www.shop263.com/i-45/94.htm
http://www.shop263.com/i-45/95.htm
http://www.shop263.com/i-45/96.htm
http://www.shop263.com/i-45/97.htm
http://www.shop263.com/i-45/98.htm
http://www.shop263.com/i-45/99.htm
http://www.shop263.com/i-45/100.htm
http://www.shop263.com/i-45/101.htm
http://www.shop263.com/i-45/102.htm
http://www.shop263.com/i-45/103.htm
http://www.shop263.com/i-45/104.htm
http://www.shop263.com/i-45/105.htm
http://www.shop263.com/i-45/106.htm
http://www.shop263.com/i-45/107.htm
http://www.shop263.com/i-45/108.htm
http://www.shop263.com/i-45/109.htm
http://www.shop263.com/i-45/110.htm
http://www.shop263.com/i-45/111.htm
http://www.shop263.com/i-45/112.htm
http://www.shop263.com/i-45/113.htm
http://www.shop263.com/i-45/114.htm
http://www.shop263.com/i-45/115.htm
http://www.shop263.com/i-45/116.htm
http://www.shop263.com/i-45/117.htm
http://www.shop263.com/i-45/118.htm
http://www.shop263.com/i-45/119.htm
http://www.shop263.com/i-45/120.htm
http://www.shop263.com/i-45/121.htm
http://www.shop263.com/i-45/122.htm
http://www.shop263.com/i-45/123.htm
http://www.shop263.com/i-45/124.htm
http://www.shop263.com/i-45/125.htm
http://www.shop263.com/i-45/126.htm
http://www.shop263.com/i-45/127.htm
http://www.shop263.com/i-45/128.htm
http://www.shop263.com/i-45/129.htm
http://www.shop263.com/i-45/130.htm
http://www.shop263.com/i-45/131.htm
http://www.shop263.com/i-45/132.htm
http://www.shop263.com/i-45/133.htm
http://www.shop263.com/i-45/134.htm
http://www.shop263.com/i-45/135.htm
http://www.shop263.com/i-45/136.htm
http://www.shop263.com/i-45/137.htm
http://www.shop263.com/i-45/138.htm
http://www.shop263.com/i-45/139.htm
http://www.shop263.com/i-45/140.htm
http://www.shop263.com/i-45/141.htm
http://www.shop263.com/i-45/142.htm
http://www.shop263.com/i-45/143.htm
http://www.shop263.com/i-45/144.htm
http://www.shop263.com/i-45/145.htm
http://www.shop263.com/i-45/146.htm
http://www.shop263.com/i-45/147.htm
http://www.shop263.com/i-45/148.htm
http://www.shop263.com/i-45/149.htm
http://www.shop263.com/i-45/150.htm
http://www.shop263.com/i-45/151.htm
http://www.shop263.com/i-45/152.htm
http://www.shop263.com/i-45/153.htm
http://www.shop263.com/i-45/154.htm
http://www.shop263.com/i-45/155.htm
http://www.shop263.com/i-45/156.htm
http://www.shop263.com/i-45/157.htm
http://www.shop263.com/i-45/158.htm
http://www.shop263.com/i-45/159.htm
http://www.shop263.com/i-45/160.htm
http://www.shop263.com/i-45/161.htm
http://www.shop263.com/i-45/162.htm
http://www.shop263.com/i-45/163.htm
http://www.shop263.com/i-45/164.htm
http://www.shop263.com/i-45/165.htm
http://www.shop263.com/i-45/166.htm
http://www.shop263.com/i-45/167.htm
http://www.shop263.com/i-45/168.htm
http://www.shop263.com/i-45/169.htm
http://www.shop263.com/i-45/170.htm
http://www.shop263.com/i-45/171.htm
http://www.shop263.com/i-45/172.htm
http://www.shop263.com/i-45/173.htm
http://www.shop263.com/i-45/174.htm
http://www.shop263.com/i-45/175.htm
http://www.shop263.com/i-45/176.htm
http://www.shop263.com/i-45/177.htm
http://www.shop263.com/i-45/178.htm
http://www.shop263.com/i-45/179.htm
http://www.shop263.com/i-45/180.htm
http://www.shop263.com/i-45/181.htm
http://www.shop263.com/i-45/182.htm
http://www.shop263.com/i-45/183.htm
http://www.shop263.com/i-45/184.htm
http://www.shop263.com/i-45/185.htm
http://www.shop263.com/i-45/186.htm
http://www.shop263.com/i-45/187.htm
http://www.shop263.com/i-45/188.htm
http://www.shop263.com/i-45/189.htm
http://www.shop263.com/i-45/190.htm
http://www.shop263.com/i-45/191.htm
http://www.shop263.com/i-45/192.htm
http://www.shop263.com/i-45/193.htm
http://www.shop263.com/i-45/194.htm
http://www.shop263.com/i-45/195.htm
http://www.shop263.com/i-45/196.htm
http://www.shop263.com/i-45/197.htm
http://www.shop263.com/i-45/198.htm
http://www.shop263.com/i-45/199.htm
http://www.shop263.com/i-45/200.htm
http://www.shop263.com/i-45/201.htm
http://www.shop263.com/i-45/202.htm
http://www.shop263.com/i-45/203.htm
http://www.shop263.com/i-45/204.htm
http://www.shop263.com/i-45/205.htm
http://www.shop263.com/i-45/206.htm
http://www.shop263.com/i-45/207.htm
http://www.shop263.com/i-45/208.htm
http://www.shop263.com/i-45/209.htm
http://www.shop263.com/i-45/210.htm
http://www.shop263.com/i-45/211.htm
http://www.shop263.com/i-45/212.htm
http://www.shop263.com/i-45/213.htm
http://www.shop263.com/i-45/214.htm
http://www.shop263.com/i-45/215.htm
http://www.shop263.com/i-45/216.htm
http://www.shop263.com/i-45/217.htm
http://www.shop263.com/i-45/218.htm
http://www.shop263.com/i-45/219.htm
http://www.shop263.com/i-45/220.htm
http://www.shop263.com/i-45/221.htm
http://www.shop263.com/i-45/222.htm
http://www.shop263.com/i-45/223.htm
http://www.shop263.com/i-45/224.htm
http://www.shop263.com/i-45/225.htm
http://www.shop263.com/i-45/226.htm
http://www.shop263.com/i-45/227.htm
http://www.shop263.com/i-45/228.htm
http://www.shop263.com/i-45/229.htm
http://www.shop263.com/i-45/230.htm
http://www.shop263.com/i-45/231.htm
http://www.shop263.com/i-45/232.htm
http://www.shop263.com/i-45/233.htm
http://www.shop263.com/i-45/234.htm
http://www.shop263.com/i-45/235.htm
http://www.shop263.com/i-45/236.htm
http://www.shop263.com/i-45/237.htm
http://www.shop263.com/i-45/238.htm
http://www.shop263.com/i-45/239.htm
http://www.shop263.com/i-45/240.htm
http://www.shop263.com/i-45/241.htm
http://www.shop263.com/i-45/242.htm
http://www.shop263.com/i-45/243.htm
http://www.shop263.com/i-45/244.htm
http://www.shop263.com/i-45/245.htm
http://www.shop263.com/i-45/246.htm
http://www.shop263.com/i-45/247.htm
http://www.shop263.com/i-45/248.htm
http://www.shop263.com/i-45/249.htm
http://www.shop263.com/i-45/250.htm
http://www.shop263.com/i-45/251.htm
http://www.shop263.com/i-45/252.htm

Latest revision as of 15:10, 12 May 2007

Redirect to:

Retrieved from "https://wiki.xiph.org/index.php?title=Writ&oldid=6651"