<div>HI Irfan , </div>
<div> You are trying to write a ASF Parser plugin which will be used after ffmux_asf in pipeline . </div>
<div> Now you want to parse data packets and send them to next element . </div>
<div> </div>
<div> The buffer you get from ffmux_asf is already allocated so you dont need to allocated a separate buffer for that .</div>
<div> To know the size of input buffer in your ASF Parser plugin you can use GST_BUFFER_SIZE(buffer) . </div>
<div> So now you have to parse data part of this buffer , because data part of the buffer have the actual data . </div>
<div> For your outgoing packets allocate one more GstBuffer and copy the required number of bytes of data from received buffer to this buffer and push this buffer to next element. </div>
<div> </div>
<div> You can use adapter APIs also to make it simpler . Read GstBuffer APIs thoroughly for good practice. </div>
<div> </div>
<div> <br><br></div>
<div class="gmail_quote">On Tue, Oct 21, 2008 at 3:59 PM, Irfan Shaikh <span dir="ltr"><<a href="mailto:irfanshaikh@tataelxsi.co.in">irfanshaikh@tataelxsi.co.in</a>></span> wrote:<br>
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<div class="Ih2E3d">-----Original Message-----<br>From: sudarshan bisht [<a href="mailto:bisht.sudarshan@gmail.com" target="_blank">mailto:bisht.sudarshan@gmail.com</a>]<br>Sent: Tue 10/21/2008 2:25 PM<br>To: Discussion of the development of GStreamer<br>
Subject: Re: [gst-devel] Size of output buffer<br><br></div>
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<div class="Wj3C7c">Hi<br><br> "gst_pad_push_event" function pushes only events ( EOS , new segment etc )<br>not buffer , in order to push buffer use "gst_pad_push" api .<br><br>On Tue, Oct 21, 2008 at 1:58 PM, Irfan Shaikh<br>
<<a href="mailto:irfanshaikh@tataelxsi.co.in" target="_blank">irfanshaikh@tataelxsi.co.in</a>>wrote:<br><br>><br>> Hi Julien,<br>><br>> Thanks for your reply..<br>><br>> For ffmux_asf plug-in in gstffmpegmux.c.<br>
><br>> Is "gst_pad_push_event" is the fuction which pushes the buffer which<br>> has ASF data into sink pad of next elemnt ?<br>> i.e. gst_pad_push_event (ffmpegmux->srcpad, gst_event_new_eos ());<br>
> When i checked the sise of buffer its variable in size.<br>><br>><br>> I need to allocate buffer for the next module to "ffmux_asf". Which<br>> is an asf parse. i need to allocate buffer in asf parser plugin. I wanted to<br>
> know what size of buffer should i allocate for ASF parser plug-in to take<br>> i/p from ffmux_asf<br>><br>> I checked the buffer size in ffmux_asf in gst_ffmpegmux_collected<br>> (GstCollectPads * pads, gpointer user_data)<br>
><br>> But it shows variable part. Tell me whether i am right ??<br>><br>> Size of buf:5757<br>> Size of buf:7134<br>> Size of buf:6927<br>> Size of buf:5670<br>> Size of buf:4989<br>> Size of buf:4004<br>
> Size of buf:3615<br>> Size of buf:3188<br>> Size of buf:3022<br>> Size of buf:2703<br>><br>> Thanks and regards,<br>> Irfan<br>><br>><br>><br>> -----Original Message-----<br></div></div>
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<div class="Wj3C7c">> From: Julien Puydt [<a href="mailto:jpuydt@free.fr" target="_blank">mailto:jpuydt@free.fr</a> <<a href="mailto:jpuydt@free.fr" target="_blank">jpuydt@free.fr</a>>]<br>> Sent: Mon 10/20/2008 3:29 PM<br>
> To: Discussion of the development of GStreamer<br>> Subject: Re: [gst-devel] Size of output buffer<br>><br>> irfanshaikh a écrit :<br>> > How can i find size of output buffer in "ffmux_asf" which is<br>
> pushed<br>> > to the sink pad of next element ?<br>><br>> GST_BUFFER_SIZE (buffer) ?<br>><br>> Snark on #gstreamer<br>><br>> -------------------------------------------------------------------------<br>
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><br>><br><br><br>--<br>Regards,<br><br>Sudarshan Bisht<br><br><br></div></div>Hi sudarshan/Ved,<br><br> In gstffmpegmux.c {gst-ffmpeg-0.10.5/ext/ffmpeg} i do not see any "gst_pad_push" function. <br>
<br>I understand we need a function something like "gst_pad_push (asfmux->srcpad, buf)", so as to push the buffer to the sink pad of next module.<br><br>But i do not find any such api in gstffmpegmux.c.<br><br>
So i am unable to find the size of output buffer which is send to the next module.So i got confused with "gst_pad_push_event"<br><br>Please can you help me regarding this issue.<br><br>I need all this information to allocate buffer size for my module "ASF parser" which is built from scratch in C. rite know i am reading from file.<br>
<br>I need to do same processing in ASF parser when i use ffmux_asf as input module for ASF parser.<br><br>Please help me regarding this.<br><br><br>Regards,<br>Irfan</font>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Regards,<br><br>Sudarshan Bisht<br>