Thanks for answer! I will be testing the lib which you sent.
But still, do you know what mean "--enable-rkmpp" flag? I thought that ffmpeg supports hardware decoding too. >Среда, 11 апреля 2018, 17:37 +04:00 от Henri Zikken <zik...@xs4all.nl>: > >The packet you get, is raw stream data. If you want to decode it, you have to >send the packet tot he decoder, and then receive back pcm frames from it. >However, you don’t want to do that, as you want to use the hardware to decode, >not ffmpeg. So this is why it’s kind of useless to put ffmpeg in it, as you >want to do everything ffmpeg does, in hardware. > >I’d consider using one of the multiple available rtp libs, like this one: >http://research.edm.uhasselt.be/jori/page/CS/Jrtplib.html > >to receive the stream, and then the mpp software to do the decoding/encoding >and so forth. FFMpeg would be bloated and overly complicated as ‘just an rtp >receiver’. > >Regards, > >Henri Zikken > >Van: Libav-user < libav-user-boun...@ffmpeg.org > Namens Anton Prikazchikov >Verzonden: woensdag 11 april 2018 13:05 >Aan: "This list is about using libavcodec, libavformat, libavutil,libavdevice >and libavfilter." < libav-user@ffmpeg.org > >Onderwerp: Re: [Libav-user] How to use rkmpp decoder? > >I need an avpacket because i read rtcp stream using by ffmpeg and receive from >the rtcp stream an avpacket. Mpp can't read rtcp stream as i know. > >Also I saw that ffmpeg have "--enable-rkmpp" flag a t the configuration stage. >And if I'm not mistaken this flag have to enable decoding using by rkmpp, but >I can't run it... What must this flag do? > >>Basically the packet->data is just the raw data. You can just pass this on to >>your mpp packet as the buffer. Packet->size gives you the size. >I tried to add the received packet->data to mpppacket, but it doesn't work. >Also i want to clarify d oes the packet->data accurately contain unmodified >H264 data?(I receive H264 data stream) >>Вторник, 10 апреля 2018, 21:16 +04:00 от Henri Zikken < zik...@xs4all.nl >: >>I don’t see why you would want an avpacket in the first place, then. As >>ffmpeg won’t do the decoding, why bother with ffmpeg? >> >>Basically the packet->data is just the raw data. You can just pass this on to >>your mpp packet as the buffer. Packet->size gives you the size. >> >>Regards, >> >>Henri Zikken >> >> >>Van: Libav-user < libav-user-boun...@ffmpeg.org > Namens Anton Prikazchikov >>Verzonden: dinsdag 10 april 2018 08:34 >>Aan: "This list is about using libavcodec, libavformat, libavutil,libavdevice >>and libavfilter." < libav-user@ffmpeg.org > >>Onderwerp: Re: [Libav-user] How to use rkmpp decoder? >> >>My purpose is decoding a received from RTCP stream h264 AVPacket-s to >>AVFrame-s using by hardware of rk3399 (Rockchip RK3399 is a processor for >>computing(aarch64, Rockchip platform)) >> >>I found that rk3399 has mpp. Media Process Platform(mpp) is the video codec >>parser and Hardware Abstraction Layer library for the Rockchip platforms. >>Mpp provides C API for decoding h264 video files using by hardware of >>Rockchip platform. >> >>And now i am thinking that the problem is converting from AVPacket(contain >>H264 data from RTCP stream) to MppPacket(this packet i will send to hardware >>decoder) >> >>Thanks, >>Anton Prikazchikov >>>Понедельник, 9 апреля 2018, 20:06 +04:00 от Henri Zikken < zik...@xs4all.nl >>>>: >>>Ok, the rk339 is soms sort of computer. You are receiving a stream on that >>>computer. Now you wish to decode that stream. >>> >>>What is your purpose? What do you mean by decoding a stream? What has MPP >>>got to do witht his all? >>> >>>Ffmpeg can decode H264. See the docs for a full example of this: >>> >>>https://ffmpeg.org/doxygen/trunk/decoding__encoding_8c-source.html >>> >>>You need more than just including .h files. The .h files can be seen as >>>‘descriptions of stuff to be found somewhere else’. So having the .h files >>>might make it compile, but then it won’t link or won’t run due to missing >>>files. >>> >>>You need the compiled .so, .a or .dll files. So you need to compile ffmpeg >>>yourself, or find the binaries suitable for your system. >>> >>>Regards, >>> >>>Henri Zikken >>> >>>Van: Libav-user < libav-user-boun...@ffmpeg.org > Namens Anton Prikazchikov >>>Verzonden: maandag 9 april 2018 16:27 >>>Aan: libav-user@ffmpeg.org >>>Onderwerp: [Libav-user] How to use rkmpp decoder? >>> >>>Hello, >>> >>>I have rk3399 and installed mpp( https://github.com/rockchip-linux/mpp ). >>> >>>I am receiving rtsp stream using by ffmpeg(C++). >>>And now I have to decode h264 video using by mpp but I don't understand how >>>to do this. >>> >>>I found https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/rkmppdec.c >>> and try to use this code for decoding. >>>I stopped on the code line below: >>>ret = ff_decode_get_packet (avctx, &pkt); >>> >>>This function requires .h files from ffmpeg which i have not in my compiled >>>version. Could someone prompt can I add some flags at configuration stage >>>for .h files or somthing else?(I don't want take these files from github src) >>> >>>Or maybe is there a better way for h264 decoding using by hw? >>> >>>Thanks, >>>Anton Prikazchikov >>>_______________________________________________ >>>Libav-user mailing list >>>Libav-user@ffmpeg.org >>>http://ffmpeg.org/mailman/listinfo/libav-user >> >>_______________________________________________ >>Libav-user mailing list >>Libav-user@ffmpeg.org >>http://ffmpeg.org/mailman/listinfo/libav-user > > >С Уважением, >Приказчиков Антон >_______________________________________________ >Libav-user mailing list >Libav-user@ffmpeg.org >http://ffmpeg.org/mailman/listinfo/libav-user
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