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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No, but you do need to close or free any ffmpeg objects that you created with, e.g., avcodec_close(), avfilter_graph_free(), av_free(), etc.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> libav-user-bounces@ffmpeg.org [mailto:libav-user-bounces@ffmpeg.org] <b>On Behalf Of </b>Quy Pham Sy<br><b>Sent:</b> Wednesday, November 14, 2012 6:38 PM<br><b>To:</b> This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.<br><b>Subject:</b> Re: [Libav-user] when to call av_register_all()<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>do i need to unregister when there is no need of ffmpeg or before the program exit?<o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Thu, Nov 15, 2012 at 12:55 AM, Ron Woods <<a href="mailto:rwoods@vaytek.com" target="_blank">rwoods@vaytek.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Call av_register_all() only at the beginning of your main program, not before each open file; but, depending on what you are doing, you may also need to call avcodec_register_all() and/or avfilter_register_all(). Refer to the documentation if you’re not sure what each does.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:libav-user-bounces@ffmpeg.org" target="_blank">libav-user-bounces@ffmpeg.org</a> [mailto:<a href="mailto:libav-user-bounces@ffmpeg.org" target="_blank">libav-user-bounces@ffmpeg.org</a>] <b>On Behalf Of </b>Quy Pham Sy<br><b>Sent:</b> Tuesday, November 13, 2012 10:31 PM<br><b>To:</b> This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.<br><b>Subject:</b> [Libav-user] when to call av_register_all()</span><o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi, i'm very new to this, so please bear with me if the question is stupid.<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>In my app, there will be more than one instance of decoder process that decode multiple files at the same time, so there will be more than place where i need to open and do all the initialization before open video files and start decoding.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My question is that should i call av_register_all for each decoding process? when and where should the method be called? <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks,<o:p></o:p></p></div></div></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>Libav-user mailing list<br><a href="mailto:Libav-user@ffmpeg.org">Libav-user@ffmpeg.org</a><br><a href="http://ffmpeg.org/mailman/listinfo/libav-user" target="_blank">http://ffmpeg.org/mailman/listinfo/libav-user</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>