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." < firstname.lastname@example.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: email@example.com >>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 >>Libavfirstname.lastname@example.org >>http://ffmpeg.org/mailman/listinfo/libav-user > >_______________________________________________ >Libav-user mailing list >Libavemail@example.com >http://ffmpeg.org/mailman/listinfo/libav-user С Уважением, Приказчиков Антон
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