It's difficult to determine which is the best quality. You can download all
the file and look in property details as shown here (this is from a GoPro). The
higher the values, the better the quality theoretically. Now, I have seen some
1080 videos that look just as good as 4K on my 4K, HDR
Hello,
On the internet archive, (the site is legal from what I've read), you can
watch videos. They often allow you to see them in several formats.
So the question came to me, which is the most lossless?
I could find this out from the quantization, or possibly comparing the
two if such metadata
Gyan,
Your good suggestion didn't work.
Was:
Stream #0:0[0x1](und): Video: hevc (Main) (hvc1 / 0x31637668),
yuv420p(tv, bt470bg), 720x576 [SAR 1:1 DAR 5:4], 3913 kb/s, 50 fps, 50
tbr, 90k tbn (default)
That's SAR=1, DAR=1.25.
Now:
Stream #0:0[0x1](und): Video: hevc (Main) (hvc1 /
On 2023-09-01 10:34 pm, pho...@neo.rr.com wrote:
Hi,
I'm trying to correct bad SARs via '-bsf' -- DARs are also bad but
I'll fix them next.
The error is: "Codec 'aac' (86018) is not supported by the bitstream
filter 'hevc_metadata'."
I'm not transcoding. I'm not using 'aac'.
I don't see why
Hi,
I'm trying to correct bad SARs via '-bsf' -- DARs are also bad but
I'll fix them next.
The error is: "Codec 'aac' (86018) is not supported by the bitstream
filter 'hevc_metadata'."
I'm not transcoding. I'm not using 'aac'.
I don't see why the command is failing.
Thanks for any suggestions.
--
> -loop will demux and decode image over and over again.
>
> There is video loop filter that allows to resolve that.
i see - indeed using the loop filter i can now process at 1.6x. thank you!
best,
miranda
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ffmpeg-user mailing list
On Fri, Sep 1, 2023 at 4:40 PM wrote:
> hi,
>
> i have written a script[1] using ffmpeg 5.1.2 to generate scrolling
> waveform videos from audio files. i first use showwavespic to write the
> full waveform to an image file, the width of which depends on the
> duration of the audio. i then use
hi,
i have written a script[1] using ffmpeg 5.1.2 to generate scrolling
waveform videos from audio files. i first use showwavespic to write the
full waveform to an image file, the width of which depends on the
duration of the audio. i then use crop with a time-varying x coordinate
to scroll
