[FFmpeg-user] ?????? pix format change

Fri, 04 Dec 2020 18:13:02 -0800 

  I am writing "c" code, I subscribed the wrong mail list. Sorry to 
interrupt you.




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                                            "FFmpeg user questions"             
                                                                       
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发送时间:&nbsp;2020年12月4日(星期五) 晚上11:57
收件人:&nbsp;"ffmpeg-user"<[email protected]&gt;;

主题:&nbsp;Re: [FFmpeg-user] pix format change



On 12/4/2020 12:12 AM, mjl wrote:
&gt;&nbsp;&nbsp;&nbsp;&nbsp; First, I use av_hwframe_transfer_data to change 
format to NV12,
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Then, I try to change NV12 to rgb24 using 
sws_scale, but it turns out to
&gt; be NULL.
&gt; 

Are you writing 'c' code or using the ffmpeg executable?&nbsp; The former isn't 
covered by this mailing list (use 
https://lists.ffmpeg.org/mailman/listinfo/libav-user/) and for the latter 
you need to show us the complete command line being used and the command 
output. (See also https://ffmpeg.org/mailing-list-faq.html)

Later,

z!
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