Hey guys!, this is my first time on this site... nice to meet you all!
I have a 1.08 Gbyte mp4 file, it's resolution is 720p = 1280 x 720, i want to play it on a 32-inch full HD TV: 1080p (1920×1080 px) AND i want to get a good quality (i wanna obtain a real FULL HD quality)
What should i do? A friend of mine told me that i should care about the image fidelity video in order to obtain good results.. and a converter is not enough
Can you help me?Which programs are the best?What would you do?
Thanks!
EDIT:
I've attached a file on this thread, it is a video file (mp4) and it's resolution is 720p. The quality is not good at all and i want to play it on a 32-inch full HD TV: 1080p (1920×1080 px). How can i improve the quality of this video and make it looks great in the TV? What are the tricks behind the scene? It does look horrible!
What is the BEST that i can do in order to get the best results?What should i do?What is the maximum available quality?
Shoud i convert it into another video format?
Thanks!
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Last edited by VideoLover; 25th Mar 2020 at 20:17.
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You can't add quality that isn't there.
If there are specific flaws, many of them can be covered up.
If you want to post a small piece of your file, someone may be able to offer advice. Otherwise, play it as-is.
(Have no idea what "image fidelity video" is supposed to mean.)
And welcome to the forums. -
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2nd law of thermodynamics (idea of conservation of entropy) comes into play:
You can never get better quality than your source without putting in your own Creative work.
Or put in terms of gravity - water always flows downhill. For water to get higher than its source requires an external "pump" (which uses up its own energy).
The detail of a 720p image will be the same or worse even in a 1080p resized result (barring creative work using AI or manual artistic/engineering re-depiction).
However, it is possible to "rob peter to pay paul" and apply clever noise reduction or sharpness (local contrast) enhancement, to FOOL one's eye into thinking it looks "better", even though there is probably less detail - due to those processes. A lot depends on whose eye needs fooling.
Your assumption that: this 720p file was already a downrezzed version from a higher rez image and that it would look better if natively captured at 720p is valid if true. But mainly because, it would be 1 generation re-encoded, and would have downrezzing artifacts ("guessing" the interpolative detail), while a native capture would not.
Scott -
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Depends on the TV, but most recent TV's will upscale any video to fill the screen
and keep the aspect ratio intact (according to TV settings)
I resized an HD video to 480x268 and tried it on my 50 inch TV,
it fills the screen, a little soft, but better than you might think -
Depends on your zoom/scale settings: zoom/stretch would fill the screen (as close as possible), 1:1/just fit/pixel-for-pixel would show it in window at its native rez. Every modern tv I've seen has these and more options.
Scott -
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Thoughts:
1. Video is a probable re-encode (export from vlc), thus not original (optimal) quality.
2. Video uses AVC Main@3.1, which is ok for 720, but could be better like High@4.1. Or even better using HEVC.
3. Video bitrate is 1.6Mbps, which is not the most minimal, but could better. Bluray is up to 40Mbps, averaging 18-25/30Mbps (even for some 720p material). That means this is 1/15 the bitrate. Maybe that much isn't necessary for cgi/game animation, but probably is still 1/10th of what it could be. Bit starvation is the most common cause of artifacting in clips.
4. Video is variable framerate. Some players may have issues with properly displaying on set refresh rate consumer TV. Should have been CFR for better compatibility.
Scott
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