Hi<br><br>It seems udpsrc/gstrtpjitterbuffer allocate buffers which could be just byte aligned.<br>Is there any way I can allocate all buffers (in good plugins) say 4/8/16 byte aligned)?<br><br>Like we have HAVE_POSIX_MEMALIGN in gstreamer core, anything similar for good plugins?<br>
<br>Regards,<br><br>Parag<br><br><div class="gmail_quote">On Wed, Jul 4, 2012 at 3:38 PM, Edward Hervey [via GStreamer-devel] <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=4655518&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>></span> wrote:<br>
<blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
On Wed, 2012-07-04 at 00:01 -0700, parag.salasakar wrote:
<br>> Hi
<br>>
<br>> Thanks for the suggestion.
<br>>
<br>> I tried it with udpsrc properties blocksize=50000 buffer-size=50000,
<br>> but observed same issue (udpsrc taking 35-40%)
<br>>
<br>> Does your suggestion mean that I have to modify source code for udpsrc
<br>> plugin which allocates buffer-pool and re-use them?
<br><br></div> Yes
<br><div><div class="im"><br>>
<br>> Regards,
<br>>
<br>> Parag
<br>>
<br>> On Mon, Jul 2, 2012 at 8:36 PM, Edward Hervey [via GStreamer-devel]
<br></div><div><div class="h5">> <[hidden email]> wrote:
<div class='shrinkable-quote'><br>> Hi,
<br>>
<br>> On Mon, 2012-07-02 at 07:45 -0700, parag.salasakar wrote:
<br>> > Hi
<br>> >
<br>> > I am trying to decode MPEG2TS bistream with following
<br>> pipeline
<br>>
<br>> I am assuming this is GStreamer 0.10
<br>>
<br>> >
<br>> > gst-launch -v udpsrc port=5004 caps="application/x-rtp,
<br>> clock-rate=90000,
<br>> > media=(string)video" ! gstrtpjitterbuffer ! queue !
<br>> rtpmp2tdepay !
<br>> > mpegtsdemux ! queue ! ffdec_mpegvideo ! videoscale !
<br>> ffmpegcolorspace !
<br>> > autovideosink on my DSP platform
<br>> >
<br>> > However i noticed that when I try
<br>> >
<br>> > gst-launch -v udpsrc port=5004 caps="application/x-rtp,
<br>> clock-rate=90000,
<br>> > media=(string)video" ! fakesink silent=1
<br>> >
<br>> > CPU utilization goes to 35% to 40% for 4 Mbps streams, which
<br>> sounds weired
<br>> > to me (how can just udpsrc take 35% of CPU?)
<br>> > AM I missing anything?
<br>> This is due to the overhead of creating/destroying plenty of
<br>> small
<br>> GstBuffers. A solution would be to create a bufferpool and
<br>> re-use
<br>> GstBuffers.
<br>>
<br>> Edward
<br>>
<br>> > Parag
<br>> >
<br>> > --
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