[gst-devel] distorted video encoded with x264

[Rafael Sousa]

When I use the x264 build 85 that issue doesn't occur, the video is perfect,
only in superior build that I tested (98 and 110) that the problem occur. I
don't have any idea of what can be happening, I've already removed and
installed the packages several times, I even upgraded my ubuntu system from
10.04 to 10.10 but no change. Anyone have any idea? I've tried all that I
know. I need to use the build 98 or superior.

thanks for the reply

Message: 1

> Date: Wed, 15 Dec 2010 15:42:01 -0500
> From: Timothy Braun <braunsquared at gmail.com>
> Subject: Re: [gst-devel] distorted video encoded with x264
> To: Discussion of the development of GStreamer
>        <gstreamer-devel at lists.sourceforge.net>
> Message-ID: <69C57452-40E4-4172-883F-DF374D355CD7 at gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> I'm no expert on this, but ran into similar issues when making a local
> file. It ultimately ended up being the parameters I was passing to the
> x264enc element. I would take a look at those with gst-inspect and see if
> you can tune the output. Most notably the pass and quantizer parameters.
>
> Tim
>
> Sent from my iPhone
>
> On Dec 15, 2010, at 3:02 PM, Rafael Sousa <rafael.lmsousa at gmail.com>
> wrote:
>
> > Hi all,
> >
> > I'm using the versions of gstreamer installed from ubuntu 10.10 apt-get.
> I've installed the gstreamer, gst-plugins-bad, gst-plugins-good,
> gst-plugins-ugly, gst-ffmpeg and I've installed the x264.
> >
> > The problem is that my pipeline gives as result a blurring video. My
> pipeline works to read a YUV file at the sender, encodes it in H.264, and
> sends it to receiver using RTP in encoding time. At the receiver, it
> receives the stream and stores it in YUV format again for posterior process.
> The pipeline is as follows:
> >
> > Sender:
> >
> > "gstrtpbin name=rtpbin filesrc location=paris_cif.yuv blocksize=152064 !
> video/x-raw-yuv, width=352, height=288, framerate=(fraction)15/1,
> format=(fourcc)I420 ! x264enc, key-int-max=30, key-int-min=15,
> intra-refresh=true ! rtph264pay ! rtpbin.send_rtp_sink_0
> rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=5000
> rtpbin.send_rtcp_src_0 ! udpsink host=5003 port=5001 sync=false async=false
> udpsrc port=5005 ! rtpbin.recv_rtcp_sink_0 "
> >
> > Receiver:
> >
> > "gstrtpbin name=rtpbin udpsrc
> caps=\"application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264"
> port=5000 ! rtpbin.recv_rtp_sink_0 rtpbin. ! rtph264depay ! ffdec_h264 !
> filesink location=example.yuv udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0
> rtpbin.send_rtcp_src_0 ! udpsink port=5005 sync=false async=false"
> >
> > I don't know why the video is blurring since I've tested it localhost,
> without loss rates. The command that I'm using to watch the result is:
> >
> > mplayer example.yuv -demuxer rawvideo -rawvideo cif
> >
> > I took a screenshot of the video, it is in annex. Please, anyone can
> help?
> >
> > thanks in advance
> > <Captura_de_tela.png>
> >
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