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690:20210804-15用C++解碼ogg音訊檔<br><table width=800 border=8><tr><td bgcolor=cyan><br>1、教學說明文件<a href="uploads/20210804用C++解碼ogg音訊檔.pdf"> 20210804用C++解碼ogg音訊檔.pdf</a>

<br>2、Ogg File Format: 

<br>2-1:<a href="https://www.loc.gov/preservation/digital/formats/fdd/fdd000026.shtml">https://www.loc.gov/preservation/digital/formats/fdd/fdd000026.shtml</a>
<br>2-2:<a href="https://en.wikipedia.org/wiki/Ogg#Page_structure">https://en.wikipedia.org/wiki/Ogg#Page_structure</a>

<br> 3、Ogg Vorbis I specification:
<a href="https://www.xiph.org/vorbis/doc/Vorbis_I_spec.html">https://www.xiph.org/vorbis/doc/Vorbis_I_spec.html</a>

<HR>
<br>4、程式碼：<a href="uploads/oggParse.cpp">oggParse.cpp</a>

<br>5、給定的ogg輸入檔：<a href="https://upload.wikimedia.org/wikipedia/commons/6/64/Square_wave_3500.ogg">https://upload.wikimedia.org/wikipedia/commons/6/64/Square_wave_3500.ogg</a>

<br>6、程式輸出結果檔：<a href="uploads/Oggpacket.txt"> Oggpacket.txt</a>

<hr>
<br>5、參考文件：
<br> 5-1：<a href="https://www.xiph.org/vorbis/doc/">Ogg file format ref3:https://www.xiph.org/vorbis/doc/</a>
<br> 5-2：<a href="https://www.ietf.org/rfc/rfc3533.txt">Ogg file format ref4:https://www.ietf.org/rfc/rfc3533.txt</a>
<br> 5-3：<a href="https://datatracker.ietf.org/doc/rfc5215/">Ogg file format ref5:https://datatracker.ietf.org/doc/rfc5215</a>



<br> 
<a href="https://en.wikipedia.org/wiki/Sine_and_cosine_transforms">Ogg ref6:https://en.wikipedia.org/wiki/Sine_and_cosine_transforms</a></table><br> select id,article_id,topic,text from lt_articles_text where article_id =690; ok.
update lt_articles set num_reads=num_reads +1 where id=690; ok.