How can I deal with the codec_data after qtdemux?
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hi, gstreamers
I can play mpegts files which contains h264 video and aac audio. But when I play mp4 files, qtdemux parse them to h264 video and aac audio, but my hardware decoders cannot decode them. I see the logs below /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0.GstGhostPad:src0: caps = video/x-h264, level=(string)4.1, profile=(string)main, codec_data (buffer)014d4029ffe10018674d4029b91816824d080000030008000003019478c189c001000468ee0fc8, width=(i nt)720, height=(int)576, framerate=(fraction)30000/1001, pixel-aspect-ratio=(fraction)16/15 I try to search some info about this from internet, but still not aware of this. So how I can deal with codec_data? any suggestions for this or any examples for this ? Best regards, zqhuan ZiQiang Huan
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Re: How can I deal with the codec_data after qtdemux?
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there are PPS, SPS in it,
refer it to: https://gitorious.org/vaapi/gstreamer-vaapi/blobs/master/gst-libs/gst/vaapi/gstvaapidecoder_h264.c#line2366 在 2012年4月11日 下午1:54，ZiQiang Huan <[hidden email]>写道：
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hi, Aihua Zhao
Thank you for your reply. I check the link you offer, but not very clear of
it.
Now I can get the codec_data, then I need to parse it and got the PPS and
SPS, right? After that, I need to package PPS and SPS to a GstBuffer and pass it
downstream, but how can I package GstH264PPS to a GstBuffer, and does it
work for me?
Best regards,
zqhuan ZiQiang Huan
发件人： [hidden email]
发送时间： 2012-04-11 16:18
收件人： [hidden email]; [hidden email]
主题： Re: How can I deal with the codec_data after
qtdemux? there are PPS, SPS in it, refer it to: https://gitorious.org/vaapi/gstreamer-vaapi/blobs/master/gst-libs/gst/vaapi/gstvaapidecoder_h264.c#line2366 在 2012年4月11日 下午1:54，ZiQiang Huan <[hidden email]>写道：
_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: 回复: Re: How can I deal with the codec_data after qtdemux?
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Hi,
You need to pass the SPS and PPS to your hardware decoder in order to "initialize" it. Cheers, On Thu, Apr 12, 2012 at 11:05:54AM +0800, ZiQiang Huan wrote: > hi, Aihua Zhao > > > > Thank you for your reply. I check the link you offer, but not very > clear of it. > > Now I can get the codec_data, then I need to parse it and got the PPS > and SPS, right? After that, I need to package PPS and SPS to a > GstBuffer and pass it downstream, but how can I package GstH264PPS to a > GstBuffer, and does it work for me? > > > > Best regards, > zqhuan > > > __________________________________________________________________ > > ZiQiang Huan > > > > [1]Aihua Zhao > 2012-04-11 16:18 > [2]hzqhuan; [3]Discussion of the development of and with GStreamer > Re: How can I deal with the codec_data after qtdemux? > > there are PPS, SPS in it, > refer it to: > [4]https://gitorious.org/vaapi/gstreamer-vaapi/blobs/master/gst-libs/gs > t/vaapi/gstvaapidecoder_h264.c#line2366 > 2012411 1:54ZiQiang Huan <[5][hidden email]> > > hi, gstreamers > I can play mpegts files which contains h264 video and aac audio. But > when I play mp4 files, qtdemux parse them to h264 video and aac audio, > but my hardware decoders cannot decode them. I see the logs below > /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0.GstGhostPad:src0: > caps = video/x-h264, level=(string)4.1, profile=(string)main, > codec_data > (buffer)014d4029ffe10018674d4029b91816824d080000030008000003019478c189c > 001000468ee0fc8, width=(i > nt)720, height=(int)576, framerate=(fraction)30000/1001, > pixel-aspect-ratio=(fraction)16/15 > I try to search some info about this from internet, but still not aware > of this. So how I can deal with codec_data? any suggestions for this or > any examples for this ? > Best regards, > zqhuan > __________________________________________________________________ > > ZiQiang Huan > > _______________________________________________ > gstreamer-devel mailing list > [6][hidden email] > [7]http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel > > References > > 1. mailto:[hidden email] > 2. mailto:[hidden email] > 3. mailto:[hidden email] > 4. https://gitorious.org/vaapi/gstreamer-vaapi/blobs/master/gst-libs/gst/vaapi/gstvaapidecoder_h264.c#line2366 > 5. mailto:[hidden email] > 6. mailto:[hidden email] > 7. http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel -- GPG-Key: 0xA3FD0DF7 - 9F73 032E EAC9 F7AD 951F 280E CB66 8E29 A3FD 0DF7 Debian User and Developer. Homepage: www.foolab.org _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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