[FFmpeg-user] signalstats

[adam smith]

Thanks very much. 
I was hoping to restrict the output using ffmpeg and not ffprobe; mostly so I could make a proxy with overlay and metadata text file at the same time. 

My question regarding bit depth was because the filter doc shows values between 0-255 which is cool for 8bit values, but 10bit obvs higher. 

Thanks for your help
I will give it a whirl with a 10 bit file and see what comes out. 

Sent from my iPhone

> On 14 Feb 2019, at 17:38, Chris Davis <chrisdavis03 at gmail.com> wrote:
> 
> In order to show specific entries with signal stats, I have used the
> following.
> 
> input=[file to process]
> 
> ffprobe -f lavfi movie=$input,signalstats -show_entries
> frame=pkt_pts_time:frame_tags=lavfi.signalstats.YDIF:frame_tags=lavfi.signalstats.VDIF:frame_tags=lavfi.signalstats.UDIF
> -of compact=p=0:nk=1:s=',' | awk -F, '$2||$3||$4'
> 
> produces this output. pts_time, YDIF, UDIF, VDIF
> 
> 0.041708,3.9209,0,0
> 
> 0.083417,3.3272,0,0
> 
> 0.125125,2.31667,0,0
> 
> 0.166833,3.64537,0,0
> 
> 0.208542,3.88414,0,0
> 
> 0.250250,1.48258,0,0
> 
> 0.291958,3.54581,0,0
> 
> 0.333667,3.61441,0,0
> 
> 0.375375,2.19445,0,0
> 
> 0.417083,5.24294,0,0
> 
> 0.458792,3.91119,0,0
> 
> 0.500500,3.49364,0,0
> 
> 0.542208,2.23117,0,0
> 
> 0.583917,3.63617,0,0
> 
> 0.625625,3.8388,0,0
> 
> 0.667333,1.68407,0,0
> 
> 0.709042,3.84471,0,0
> 
> 0.750750,3.52209,0,0
> 
> 0.792458,2.10397,0,0
> 
> 0.834167,4.66315,0,0
> 
> 0.875875,3.88427,0,0
> 
> 0.917583,3.44534,0,0
> 
> 0.959292,2.15088,0,0
> 
> 1.001000,7.99362,0,0
> 
> etc
> 
> On Thu, Feb 14, 2019 at 12:22 PM Kieran O Leary <kieran.o.leary at gmail.com>
> wrote:
> 
>>> On Thu, 14 Feb 2019, 16:53 Gyan <ffmpeg at gyani.pro wrote:
>>> 
>>> 
>>> 
>>>> On 14-02-2019 09:47 PM, adam smith wrote:
>>>> The other question regarding this filter, can it output 10bit values?
>>>> The 8bit values appear to be covered, but I am not sure how to get
>> 10bit
>>> or higher.
>>> 
>>>  The filter works with inputs up to 16 bit depth.
>>> 
>> 
>> I think a few years ago it was only 8-bit,so perhaps Adam is using an
>> ancient version..
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