[Ffmpeg-devel] rtsp problem with ffplay

Luca Barbato lu_zero
Wed Mar 8 16:37:53 CET 2006

chris.2.dobbs at bt.com wrote:
> Hi Luca,
> Thanks again for info. Sorry to be a pain with this but I feel I am
> getting closer!
> I have totally misunderstood the meaning of Dynamic payloads - I thought
> 96 was specific for AMR!

Dynamic payload are dynamic, you have explicit mappings in the sdp.

> So am I on the right track thinking I now need to add a entry to the
> AVRtpDynamicPayloadTypes[] array to allow dynamic payload type 96 with
> sdp map data equal to AMR to match this new entry and thus get the right
> codec_id (0x12000 for AMR-NB I think...)  

payload type ${Dynamic} and rtpmap AMR/something, 96 is a number like 97
98 ... etc etc etc if the number is higher than a certain value that I
don't remeber right now but that should be present, you just check the
rtpmap and act accordingly.


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