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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">last time I used that, you were supposed to set
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AVFrame.pict_type=AV_PICTURE_TYPE_I; right before calling avcodec_encode_video2( .. AVFrame .. )<br>
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hope that helps ..<br>
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<div style="direction: ltr;" id="divRpF164270"><font face="Tahoma" color="#000000" size="2"><b>From:</b> Libav-user [libav-user-bounces@ffmpeg.org] on behalf of qw [applemax82@163.com]<br>
<b>Sent:</b> Wednesday, September 02, 2015 1:34 PM<br>
<b>To:</b> This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.<br>
<b>Subject:</b> [SPAM] Re: [Libav-user] force I frame in video coding<br>
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<div>Hi,</div>
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<div>Sorry, I should say more clearly my question.</div>
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<div>In general, <span style="line-height:1.7">avcodec_encode_video2() is used to encode each video frame, and video encoder decide which type frame the current frame is coded as. video frame can be coded as I frame, P frame, or B frame decided by video encoder.</span></div>
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<div><span style="line-height:1.7">But sometimes I want the current frame to be coded as one I frame instead of other type frame decided by video encoder. How to do it using ffmpeg functions?</span></div>
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<div><span style="line-height:1.7">Thanks</span><span style="line-height:1.7">!</span></div>
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<div><span style="line-height:1.7">B.R.</span></div>
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<div><span style="line-height:1.7">Andrew</span></div>
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At 2015-09-02 17:15:54, "Talgorn François-Xavier" <fxtalgorn-at-yahoo.fr@ffmpeg.org> wrote:<br>
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Hi,
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<div>You request seems odd to me since if you encode P or B frames as I frame you will get... P or B frame, hence partial image.</div>
<div>I've never done this, I can't tell you how to do this, sorry.</div>
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<div>Good luck!<br>
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<div>Le 2 sept. 2015 à 10:33, qw <<a href="mailto:applemax82@163.com" target="_blank">applemax82@163.com</a>> a écrit :</div>
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<div>Hi,</div>
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<div>In general, avcodec_encode_video2() is used to encode each video frame. How to force encoder code current frame as I frame?</div>
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<div>Thanks!</div>
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<div>B.R.</div>
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<div>andrew</div>
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