On 9/9/19 9:02 AM, Paul B Mahol wrote:
On 9/9/19, George R. Welch wrote:
Hi folks,
I have two versions of the same video and I would like to only keep
one. If one is higher quality, I'd obviously want to keep that one. I
can't tell tell any difference through casual watching with VLC, so
perhaps it does not matter.
But anyway, when I run ffmpeg -i on the two, the difference is:
< Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
1920x1080, 4011 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
---
> Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661),
yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 4173 kb/s, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc (default)
I think I understand the difference between yuv420p(pc) and yuv420p(tv),
but here I have yuv420p vs yuv420p(tv).
Can someone offer suggestions as to which of these two videos might be
the better encoding?
You should not trust anyone giving you such answer by comparing only
metadata and not actual data.
Thank you. I should add that I do know that the only difference between
the videos is the encoding scheme. Both were produced from the same
master. It's just that I don't know what was done (and can't find out
easily).
My hope was that ffmpeg's output could offer me a clue about the
encodings of the two, from which I could make an educated guess about
which one might be better (if either).
If one can't tell from this, I'm happy to flip a coin. But does anyone
know the difference between yuv420p and yuv420p(tv). As opposed to
yuv420p(pc) vs yuv420p(tv), I mean.
Best,
--George
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