[Libav-user] How to decode mp4a-latm content in RTP using ffmpeg?

NITIN GOYAL nitinkumgoyal at gmail.com
Wed Mar 28 15:11:32 CEST 2012


I am trying to decode the mp4a-latm content using ffmpeg. I have used the
CodecID as Codec_ID_AAC_LATM and extracted the config parameter from the
SDP and further extracted the audio content from the RTP by removing the
rtp header and sent it to decodeAudio4 function but the decode function
always return the negative value.

I have gone through the RFC 3016 and the code of rtpdec_latm.c in ffmpeg
src also but i am not able to find where i am doing the mistake and what
exactly the procedure to send the content to decode.

As general, we need to send the config value from SDP and then the raw
audio packet form the RTP after removing the header but its not working.

Can someone help me in it?


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