[FFmpeg-devel] [PATCH 5/5] avformat: add sdr support

Tomas Härdin git at haerdin.se
Sat Jun 24 13:22:01 EEST 2023


mån 2023-06-19 klockan 00:36 +1200 skrev Kieran Kunhya:
> On Sun, 18 Jun 2023 at 23:46, Paul B Mahol <onemda at gmail.com> wrote:
> 
> > > sdrdemux in libavformat will demodulate, do error correction then
> > > return
> > > AVPacket
> > > with H.264 / Mpeg2 video or AAC or wahetever
> > > That then will get passed to libavcodec, same as with any other
> > > demuxer.
> > 
> 
> Whilst I agree that there is a need for an SDR library that isn't C++
> based
> and allows for FFmpeg-style SIMD, avformat nor any other part of
> FFmpeg is
> suited for this.

GNU Radio already has a bunch of SIMD stuff (or else it wouldn't work),
including FPGA stuff for SDRs that have such hardware. There is no need
to reinvent it, and worse to boot.

> There's clearly active processing going on however you might want to
> define
> "demux"

Channelization is the more proper word.

/Tomas


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