Hi Gonzalo,

Thank you for the info
    On Saturday, November 6, 2021, 11:39:02 PM EDT, Gonzalo Garramuño 
<[email protected]> wrote:  
 
  

 
 El 6/11/21 a las 23:35, Robert Smith via Libav-user escribió:
  
   
  If I skip setting setting sample format option the swr_init display warning
 
  [SWR @ 0x2c7b950] Requested sample format (null) is not supported internally, 
only float & S16 is supported 
 and eventually swr_convert fails on assertion:
 Assertion a->planar failed at libswresample/swresample.c:284
 
 Could you advise how to resolve this issue? Thanks 
      
 
See if there's a swr_alloc_set_opts function in your libav.  If there is, you 
can pass all the flags like:
 
   swr_ctx  = swr_alloc_set_opts(NULL, out_ch_layout,
                                                out_sample_fmt,  
out_sample_rate,
                                                in_ch_layout,  in_sample_fmt,
                                                in_sample_rate,
                                                0, NULL);
 
Hope that helps!

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