[FFmpeg-devel] [PATCH] change of deprecated log to debug level

Thomas Hartwig thomas.hartwig at gmail.com
Fri Sep 22 09:20:24 EEST 2017


Attached is the clean patchfile. I want to give some small background: 
the problem happens in javacpp. It looks like there is a problem 
handling pixelformats not correct at all when used for pixel grabbing. 
This is why I mentioned it in a streaming context.
However this patch is a small workaround to this and really minimal. We 
will look more deeply into the wrapper to get rid of it but in the 
meantime....

Thanks
Thomas

On 22.09.2017 05:06, wm4 wrote:
> On Thu, 21 Sep 2017 22:55:14 +0200
> Thomas Hartwig <thomas.hartwig at gmail.com> wrote:
> 
>> The problem is this warning is flooding the console with deprecated
>> warnings for every decoded frame. However decoding works well. This is
>> an issue with an Axis camera H264 stream received via rtsp for instance.
>> There are several complaints about it in the WEB for years now and I
>> could not find a real solution for the underlying problem. It looks like
>> vendors are not changing their encoding easily. ;-)
>>
>>
>> ---
>>     libswscale/utils.c | 2 +-
>>     1 file changed, 1 insertion(+), 1 deletion(-)
>>
>>    diff --git a/libswscale/utils.c b/libswscale/utils.c
>>    index dcab70..af4aa1 100644
>>    --- a/libswscale/utils.c
>>    +++ b/libswscale/utils.c
>>    @@ -1182,7 +1182,7 @@ av_cold int sws_init_context(SwsContext *c,
>> SwsFilter *srcFilter,
>>         c->dstRange |= handle_jpeg(&c->dstFormat);
>>
>>         if(srcFormat!=c->srcFormat || dstFormat!=c->dstFormat)
>>    -        av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make
>> sure you did set range correctly\n");
>>    +        av_log(c, AV_LOG_DEBUG, "deprecated pixel format used, make
>> sure you did set range correctly\n");
>>
>>         if (!c->contrast && !c->saturation && !c->dstFormatBpp)
>>             sws_setColorspaceDetails(c,
>> ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], c->srcRange,
>>    --
>>    2.7.4
>> _______________________________________________
> 
> I'd rather have if we finally stopped using these pixfmts. They cause
> nothing but problems to me.
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> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
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> 

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