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php-manual-pt_BR-5.2.4-1mdv2008.1.noarch.rpm

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NAME="ref.oggvorbis"
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><DIV
CLASS="TITLEPAGE"
><H1
CLASS="title"
>CX. oggvorbis</H1
><DIV
CLASS="PARTINTRO"
><A
NAME="AEN157664"
></A
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="oggvorbis.intro"
>Introdução</A
></H1
><P
>&#13;    The OGG/Vorbis file format, as defined by <A
HREF="http://www.vorbis.com/"
TARGET="_top"
>http://www.vorbis.com/</A
>, is a scheme
    for compressing audio streams by multiple factors with a minimum of
    quality loss. This extension adds Ogg Vorbis support to PHP's
    <A
HREF="wrappers.html"
>URL Wrappers</A
>. When used in read mode,
    compressed OGG/Vorbis data is expanded to raw PCM audio in one of six PCM
    encoding formats listed below.
   </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="oggvorbis.requirements"
>Dependências</A
></H1
><P
>&#13;    This extension requires <TT
CLASS="literal"
>PHP &#62;= 4.3.0</TT
>,
    <A
HREF="http://www.vorbis.com/setup/"
TARGET="_top"
>libogg</A
> &#62;= 1.0, and
    <A
HREF="http://www.vorbis.com/setup/"
TARGET="_top"
>libvorbis</A
> &#62;= 1.0.
   </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="oggvorbis.configuration"
>Configurações em execução</A
></H1
><P
>Esta extensão não define nenhum parâmetro de configuração no <TT
CLASS="filename"
>php.ini</TT
>.</P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="oggvorbis.installation"
>Instalação</A
></H1
><P
>&#13;  Informações para a instalação desta extensão PECL
 podem ser encontradas no manual no capitulo entitulado <A
HREF="install.pecl.html"
>Instalação
 de extensões PECL</A
>. Informações adicionais como novas versões,
 downloads, arquivos fontes, manutenções, e um Changelog, podem ser
 obtidos aqui: 
  <A
HREF="http://pecl.php.netoggvorbis"
TARGET="_top"
>http://pecl.php.netoggvorbis</A
>
 </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="oggvorbis.contexts"
>Context options</A
></H1
><DIV
CLASS="table"
><A
NAME="AEN157687"
></A
><P
><B
>Tabela 1. OGG/Vorbis tuning options</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><COL><COL><THEAD
><TR
><TH
>Option</TH
><TH
>Definition</TH
><TH
>Relevance</TH
><TH
>Default</TH
></TR
></THEAD
><TBODY
><TR
><TD
>pcm_mode</TD
><TD
>PCM byte encoding used.  See constants below.</TD
><TD
>Read / Write</TD
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_S16_LE</B
></TT
></TD
></TR
><TR
><TD
>rate</TD
><TD
>PCM Sampling rate.  Measured in Hz.</TD
><TD
>Write only</TD
><TD
><TT
CLASS="constant"
><B
>44100</B
></TT
></TD
></TR
><TR
><TD
>bitrate</TD
><TD
>&#13;      Vorbis Average Bitrate Encoding / Variable Bitrate Encoding.  
      Measured in bps (ABR) or Quality level (VBR: 0.0 to 1.0).  
      128000 ABR is rough equal to 0.4 VBR.
     </TD
><TD
>Write only</TD
><TD
><TT
CLASS="constant"
><B
>128000</B
></TT
></TD
></TR
><TR
><TD
>channels</TD
><TD
>Number of PCM channels.  1 == Mono, 2 == Stereo.</TD
><TD
>Write only</TD
><TD
><TT
CLASS="constant"
><B
>2</B
></TT
></TD
></TR
><TR
><TD
>serialno</TD
><TD
>&#13;      Serial Number of stream within file.  Must be unique within file.
      Because of the potential to select a duplicate serial number within
      a chained file, make efforts to manually assign unique numbers when
      encoding.
     </TD
><TD
>Write only</TD
><TD
><SPAN
CLASS="emphasis"
><I
CLASS="emphasis"
>Random</I
></SPAN
></TD
></TR
><TR
><TD
>comments</TD
><TD
>&#13;      Associative array of file comments.  
      Will be translated to <TT
CLASS="literal"
>strtoupper($name) . "=$value"</TT
>.
      Note: This context option is not available in oggvorbis-0.1
     </TD
><TD
>Write only</TD
><TD
><TT
CLASS="constant"
><B
>array('ENCODER' =&#62; 'PHP/OggVorbis, http://pear.php.net/oggvorbis')</B
></TT
></TD
></TR
></TBODY
></TABLE
></DIV
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="oggvorbis.constants"
>Constantes pré-definidas</A
></H1
><P
>&#13;As contantes abaixo são definidas por esta extensão e somente
 estarão disponíveis quando a extensão foi compilada com o PHP
 ou carregada dinamicamente durante a execução.
</P
><DIV
CLASS="table"
><A
NAME="AEN157737"
></A
><P
><B
>Tabela 2. OGG/Vorbis supports PCM encodings in the following formats</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><THEAD
><TR
><TH
>Constant</TH
><TH
>Definition</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_U8</B
></TT
></TD
><TD
>Unsigned 8-bit PCM.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_S8</B
></TT
></TD
><TD
>Signed 8-bit PCM.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_U16_LE</B
></TT
></TD
><TD
>Unsigned 16-bit PCM. Little Endian byte order.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_U16_BE</B
></TT
></TD
><TD
>Unsigned 16-bit PCM. Big Endian byte order.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_S16_LE</B
></TT
></TD
><TD
>Signed 16-bit PCM. Little Endian byte order.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>OGGVORBIS_PCM_S16_BE</B
></TT
></TD
><TD
>Signed 16-bit PCM. Big Endian byte order.</TD
></TR
></TBODY
></TABLE
></DIV
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CLASS="TOC"
><DL
><DT
><B
>Índice</B
></DT
><DT
><A
HREF="oggvorbis.usage.html"
>Usage</A
>&nbsp;--&nbsp;
    Examples on using the ogg:// wrapper.
   </DT
></DL
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