<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_extra"><br><div class="gmail_quote">2018-03-24 21:13 GMT+11:00 YIRAN LI <span dir="ltr"><<a href="mailto:mrfun.china@gmail.com" target="_blank">mrfun.china@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div style="font-family:georgia,serif">Hi guys,</div><div style="font-family:georgia,serif"><br></div><div style="font-family:georgia,serif"><br></div><div style="font-family:georgia,serif">Want to confirm one thing. May I write my own demuxer (for example for AVI) and only use ffmpeg API for video/audio decoding?  </div><div style="font-family:georgia,serif"><br></div><div style="font-family:georgia,serif"><br></div><div style="font-family:georgia,serif">Thanks</div></div>
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<div class="gmail_default" style="color:rgb(34,34,34);font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;font-family:georgia,serif">Hi guys,</div><div class="gmail_default" style="color:rgb(34,34,34);font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;font-family:georgia,serif"><br></div><div class="gmail_default" style="color:rgb(34,34,34);font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;font-family:georgia,serif">I've found an example video_decode_example@avcodec.c (mine is an old version so this might have been moved to another place)</div>

<div class="gmail_default" style="font-family:georgia,serif"><br></div>in which the codeccontext is initialized with avcodec_alloc_context3 so no avformat context is needed.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">That way I can call av_decode_frame with my own demuxer.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">Thanks​</div><br></div></div>