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This is were I am setting up the codec context and format:<br>
<br>
<span style=" color:#646482;"> </span><span style="
font-weight:600;">m_videoCodecCTX</span>-><span style="
font-weight:600;">codec_id</span> = AV_CODEC_ID_WMV2;
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_videoCodecCTX</span>-><span style=" font-weight:600;">bit_rate</span> = 400000;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_videoCodecCTX</span>-><span style=" font-weight:600;">width</span> = 640;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_videoCodecCTX</span>-><span style=" font-weight:600;">height</span> = 480;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_video_st</span>.<span style=" font-weight:600;">st</span>-><span style=" font-weight:600;">time_base</span>.<span style=" font-weight:600;">num</span> = 1;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_video_st</span>.<span style=" font-weight:600;">st</span>-><span style=" font-weight:600;">time_base</span>.<span style=" font-weight:600;">den</span> = 25;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_videoCodecCTX</span>-><span style=" font-weight:600;">time_base</span> = <span style=" font-weight:600;">m_video_st</span>.<span style=" font-weight:600;">st</span>-><span style=" font-weight:600;">time_base</span>;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_videoCodecCTX</span>-><span style=" font-weight:600;">gop_size</span> = 12;</pre>
<pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> <span style=" font-weight:600;">m_videoCodecCTX</span>-><span style=" font-weight:600;">pix_fmt</span> = AV_PIX_FMT_YUV420P;</pre>
<pre style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">
</pre>
<br>
m_video_st.st is a AVStream pointer. m_videoCodecCTX is a
m_videoCodecCTX pointer.<br>
<br>
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Sincerely,<span style="font-size:12.0pt;color:#0070C0"><br>
Kevin J. Brooks<o:p></o:p></span><span
style="font-size:12.0pt;color:#0070C0"><br>
Senior Software Engineer<o:p></o:p></span><span
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R2C Support Services<o:p></o:p></span><span
style="font-size:14.0pt;color:black;mso-themecolor: text1"><br>
200 West Side Square Suite 604<o:p></o:p></span><span
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Huntsville, AL 35801</span><span
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Office: 256-684-8383 ext. 104<o:p></o:p></span> <br>
<br>
<img alt="" src="cid:part1.01070301.04060903@r2c-ss.com"
height="281" width="281"><br>
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<div class="moz-cite-prefix">On 7/2/2015 9:59 AM, Talgorn
François-Xavier wrote:<br>
</div>
<blockquote cite="mid:DF005040-62FE-4843-8D41-D0207EC13961@yahoo.fr"
type="cite">
<pre wrap="">Hi,
Frames/second shouldn't be an issue in itself. It might be because of time_base parameter.
To help you better, could you provide the code used ?
Le 2 juil. 2015 à 16:41, Kevin J. Brooks <a class="moz-txt-link-rfc2396E" href="mailto:kbrooks@r2c-ss.com"><kbrooks@r2c-ss.com></a> a écrit :
</pre>
<blockquote type="cite">
<pre wrap="">Hi all,
I am successfully saving video in a wmv format, capturing from a video capture card. However, the play back in windows media is just a bit fast. I am attempting to save at 25 frames per second, but the properties on the wmv file states it is 30 fps. What should I be looking at to get this set up right?
Thanks,
Kevin
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