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<p class="MsoNormal"><span lang="EN-US">Hi opusfile developers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Recently, when I use the opusfile library to seek a file that located on our<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http server. The API reported that it was not seekable.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I found that it was because of the library send<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http/1.0 request by default as below in http.c: op_http_stream_open when I dig a little deeper.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#2B2B2B"><span style="font-size:9.0pt;font-family:Menlo;color:gray">/*Send HTTP/1.0 by default for maximum compatibility (so we don't have to<br>
re-try if HTTP/1.1 fails, though it shouldn't, even for a 1.0 server).<br>
This means we aren't conditionally compliant with RFC 2145, because we<br>
violate the requirement that "An HTTP client SHOULD send a request<br>
version equal to the highest version for which the client is at least<br>
conditionally compliant...".<br>
According to RFC 2145, that means we can't claim any compliance with any<br>
IETF HTTP specification.*/<br>
</span><span style="font-size:9.0pt;font-family:Menlo;color:#A9B7C6">ret|=op_sb_append(&_stream-></span><span style="font-size:9.0pt;font-family:Menlo;color:#9373A5">request</span><span style="font-size:9.0pt;font-family:Menlo;color:#CC7832">,</span><span style="font-size:9.0pt;font-family:Menlo;color:#6A8759">"
HTTP/1.1</span><span style="font-size:9.0pt;font-family:Menlo;color:#CC7832">\r\n</span><span style="font-size:9.0pt;font-family:Menlo;color:#6A8759">"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CC7832">,</span><span style="font-size:9.0pt;font-family:Menlo;color:#6897BB">11</span><span style="font-size:9.0pt;font-family:Menlo;color:#A9B7C6">)</span><span style="font-size:9.0pt;font-family:Menlo;color:#CC7832">;<br>
</span><span style="font-size:9.0pt;font-family:Menlo;color:gray">/*Remember where this is so we can upgrade to HTTP/1.1 if the server<br>
supports it.*/</span><span style="font-size:9.0pt;font-family:Menlo;color:#A9B7C6"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">It was OK after I changed this to http/1.1 and tried again.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">As far as I known, the “Accept-Ranges” feature is defined in http 1.1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://tools.ietf.org/html/rfc2616#section-14.5">https://tools.ietf.org/html/rfc2616#section-14.5</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">And I know that the http stream seek feature is depend on<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The range requests. If we made http 1.0 requests by default, it<br>
may make some http servers that support range requests cannot<br>
seek the stream(like our case, you could use the following commands<br>
to test this: <o:p></o:p></span></p>
<pre style="background:#2B2B2B"><span style="font-size:9.0pt;font-family:Menlo;color:gray">curl </span><span lang="EN-US" style="font-size:9.0pt;font-family:Menlo;color:gray">-</span><span style="font-size:9.0pt;font-family:Menlo;color:gray">I --http1</span><span lang="EN-US" style="font-size:9.0pt;font-family:Menlo;color:gray">.0</span><span style="font-size:9.0pt;font-family:Menlo;color:gray"> <a href="http://server/avstudy_resources/ogg/txh.opus">http://<span lang="EN-US">server</span>/avstudy_resources/ogg/txh.opus</a><o:p></o:p></span></pre>
<pre style="background:#2B2B2B"><span style="font-size:9.0pt;font-family:Menlo;color:gray">curl </span><span lang="EN-US" style="font-size:9.0pt;font-family:Menlo;color:gray">-</span><span style="font-size:9.0pt;font-family:Menlo;color:gray">I --http1.1 <a href="http://server/avstudy_resources/ogg/txh.opus">http://<span lang="EN-US">server</span>/avstudy_resources/ogg/txh.opus</a><o:p></o:p></span></pre>
<p class="MsoNormal"><span lang="EN-US">).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">As http 1.1(even http2) is widely used nowadays, can you change this<br>
to http 1.1 instead? Or at least, provide a compile MACRO that give<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">users an option to choose default http request version.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">BR,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Guoshun<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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