<div dir="ltr">I am trying to convert audio file format and using libav for this but dont know how to do it can you guys help me how to do it, i will very thankful.<br><br><div class="gmail_quote">On Mon, Oct 15, 2012 at 7:43 PM, Chandranath Bhattacharyya <span dir="ltr"><<a href="mailto:cbhattac@adobe.com" target="_blank">cbhattac@adobe.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="white" lang="EN-US" link="blue" vlink="purple"><div><div class="im"><p class="MsoNormal" style="text-autospace:none">
>> What’s going wrong?<span style="font-size:9.5pt;font-family:Consolas"> AVStream::time_base.den = 12800; </span>seems to be wrong data. Other than fixing some compilation errors, I did not modify anything else in examples/demuxing.c.<u></u><u></u></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p></div><p class="MsoNormal"><span style="color:#1f497d">- I downloaded the older version (ffmpeg-20121003-git-df82454-win32-*) from </span><a href="http://ffmpeg.zeranoe.com/builds/" target="_blank">http://ffmpeg.zeranoe.com/builds/</a>. Now AVStream::time_base.den = 25 – perfect!!<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="color:#1f497d">However, I had to comment out the following lines in write_video_frame (muxing.c) to get rid of pts (0) < dts (1) error:<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"> </span><span style="font-size:9.5pt;font-family:Consolas;color:green">if (c->coded_frame->pts != AV_NOPTS_VALUE)</span><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"><u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"> </span><span style="font-size:9.5pt;font-family:Consolas;color:green"> pkt.pts = av_rescale_q(c->coded_frame->pts,</span><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"><u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"> </span><span style="font-size:9.5pt;font-family:Consolas;color:green"> c->time_base, st->time_base);</span><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"><u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal" style="text-autospace:none"><span style="color:windowtext">In above c->coded_frame->pts was always 0 causing the problem.<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal" style="text-autospace:none"><span style="color:windowtext">Also, the file I was referring to was example/muxing.c (not demuxing.c). Sorry for the error.<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Chandranath<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p></div></div><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><div>Thanks and Regards :-</div> Rishi Kant Gupta<div>Mob :- +917827055522</div></div><br>
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