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    <title>i.MX ProcessorsのトピックAbout mkv file decoding in Linux 3.0.35.</title>
    <link>https://community.nxp.com/t5/i-MX-Processors/About-mkv-file-decoding-in-Linux-3-0-35/m-p/558890#M86812</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Dear All,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Issue]&lt;/P&gt;&lt;P&gt;A specific video file (.mkv) is loaded very slowly while playing. Meanwhile, the load of CPU is very high.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Comment]&lt;/P&gt;&lt;P&gt;Device: i.MX 6Dual&lt;/P&gt;&lt;P&gt;We use gstreamer. And the version of gstreamer is 0.10.35 from “L3.0.35_4.1.0_130816_images_MX6” and “IMX_MMCODEC_3.0.35_4.1.0_BUNDLE_CODA.tar.gz”.&lt;BR /&gt;I don't think the VPU caused this bug. I think it's aiurdemux plugin.&lt;/P&gt;&lt;P&gt;Because only the aiurdemux thread has a high load of CPU.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Command line]&lt;/P&gt;&lt;P&gt;$ gst-launch-0.10 -v filesrc location=/mnt/udisk1/sample.mkv ! decodebin2 name=dec dec. ! audioconvert ! audioresample ! alsasink dec. ! mfw_v4lsink&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Video information]&lt;/P&gt;&lt;P&gt;Container: .mkv (Matroska)&lt;/P&gt;&lt;P&gt;Video: H264 - MPEG AVC (part10) (avc1), 1280x720, 30fps&lt;/P&gt;&lt;P&gt;Audio: MPEG AAC Audio (mp4a), 48kHz&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Question]&lt;/P&gt;&lt;P&gt;Please resolve this issue.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Best Regards,&lt;/P&gt;&lt;P&gt;Keita&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Thu, 25 Aug 2016 00:19:08 GMT</pubDate>
    <dc:creator>keitanagashima</dc:creator>
    <dc:date>2016-08-25T00:19:08Z</dc:date>
    <item>
      <title>About mkv file decoding in Linux 3.0.35.</title>
      <link>https://community.nxp.com/t5/i-MX-Processors/About-mkv-file-decoding-in-Linux-3-0-35/m-p/558890#M86812</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Dear All,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Issue]&lt;/P&gt;&lt;P&gt;A specific video file (.mkv) is loaded very slowly while playing. Meanwhile, the load of CPU is very high.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Comment]&lt;/P&gt;&lt;P&gt;Device: i.MX 6Dual&lt;/P&gt;&lt;P&gt;We use gstreamer. And the version of gstreamer is 0.10.35 from “L3.0.35_4.1.0_130816_images_MX6” and “IMX_MMCODEC_3.0.35_4.1.0_BUNDLE_CODA.tar.gz”.&lt;BR /&gt;I don't think the VPU caused this bug. I think it's aiurdemux plugin.&lt;/P&gt;&lt;P&gt;Because only the aiurdemux thread has a high load of CPU.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Command line]&lt;/P&gt;&lt;P&gt;$ gst-launch-0.10 -v filesrc location=/mnt/udisk1/sample.mkv ! decodebin2 name=dec dec. ! audioconvert ! audioresample ! alsasink dec. ! mfw_v4lsink&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Video information]&lt;/P&gt;&lt;P&gt;Container: .mkv (Matroska)&lt;/P&gt;&lt;P&gt;Video: H264 - MPEG AVC (part10) (avc1), 1280x720, 30fps&lt;/P&gt;&lt;P&gt;Audio: MPEG AAC Audio (mp4a), 48kHz&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;[Question]&lt;/P&gt;&lt;P&gt;Please resolve this issue.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Best Regards,&lt;/P&gt;&lt;P&gt;Keita&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 25 Aug 2016 00:19:08 GMT</pubDate>
      <guid>https://community.nxp.com/t5/i-MX-Processors/About-mkv-file-decoding-in-Linux-3-0-35/m-p/558890#M86812</guid>
      <dc:creator>keitanagashima</dc:creator>
      <dc:date>2016-08-25T00:19:08Z</dc:date>
    </item>
    <item>
      <title>Re: About mkv file decoding in Linux 3.0.35.</title>
      <link>https://community.nxp.com/t5/i-MX-Processors/About-mkv-file-decoding-in-Linux-3-0-35/m-p/558891#M86813</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;1) pls update the bsp to 4.1.1 version, which fix some issues from 4.1.0&lt;/P&gt;&lt;P&gt;2) pls try to use "gst-launch playbin2 uri=file:/// "&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 25 Aug 2016 06:19:30 GMT</pubDate>
      <guid>https://community.nxp.com/t5/i-MX-Processors/About-mkv-file-decoding-in-Linux-3-0-35/m-p/558891#M86813</guid>
      <dc:creator>joanxie</dc:creator>
      <dc:date>2016-08-25T06:19:30Z</dc:date>
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