V.410 video quality problem

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minrim
Posts: 20
Joined: 11 Sep 2017, 07:46

V.410 video quality problem

Post by minrim » 30 Dec 2017, 18:29

We started to migrate mag254 devices to tvip devices v.410 our users started to complain that video quality is worse than before used mag254. We investigated that is true. V.410 add some sharpness and blur in video quality, colors also is not true.
We take picture to show problem.
Photo taken from mag254 and my sony bravia is in same quality:
Photo: http://disigma.lt/tvip/sony_bravia_decoding_h264_ok.png

Photo taken from v.410 tvip:
http://disigma.lt/tvip/tvip_s410_decoding_ok.png

Stream is same.
Please view channel logo that shows difference.
Channel logo in high quality http://disigma.lt/tvip/channel_logo.png

Stėam:
v1 h264 video 720x396a1 mp2a audio

Video quallty is easy seen that is worse comparing with mag254 and directly decoded by tv.
Can You help to fix this issue?

TMC
Администратор
Posts: 925
Joined: 16 Jan 2014, 13:34

Re: V.410 video quality problem

Post by TMC » 30 Dec 2017, 22:22

Which video mode is setup on TVIP?

minrim
Posts: 20
Joined: 11 Sep 2017, 07:46

Re: V.410 video quality problem

Post by minrim » 30 Dec 2017, 23:05

Pleas view my video settings from picture: http://disigma.lt/tvip/video_settings.png
TV is Sony Bravia 43X8309C good quallity tv
If You need i can give stream to compare with good quallity tv and s410 stb.
Thanks for answer

TMC
Администратор
Posts: 925
Joined: 16 Jan 2014, 13:34

Re: V.410 video quality problem

Post by TMC » 31 Dec 2017, 22:03

"Auto" could, actually, be different, depending on your TV. So, you would better set it to "1080p 50hz" for test.

minrim
Posts: 20
Joined: 11 Sep 2017, 07:46

Re: V.410 video quality problem

Post by minrim » 01 Jan 2018, 14:37

Thanks for reply.
Yes you are true. Auto was detected 1080i we manualy selected 1080p, picture quallity now is much more better (without any sharp, blur).
But red color on tvip s410 channel logo is more like orange but logo must be red. Its posible to tune colors on s410?
Pleas see:
Native tv decoding: http://disigma.lt/tvip/new/mag254_sonybravia.jpg
TVIP s410 decoding: http://disigma.lt/tvip/new/tvips410.jpg

Thanks for support now we have better image quallity with 1080p insted auto detected 1080i
If You help to tune colors we will be much more happy than using mag's stb :)

TMC
Администратор
Posts: 925
Joined: 16 Jan 2014, 13:34

Re: V.410 video quality problem

Post by TMC » 01 Jan 2018, 15:56

Could you at least provide a small sample of video?

minrim
Posts: 20
Joined: 11 Sep 2017, 07:46

Re: V.410 video quality problem

Post by minrim » 01 Jan 2018, 16:28

Pleas download sample video from http://disigma.lt/tvip/video.mp4
Pleas view channel logo colors with tvip s410 and directly decoded from good tv.
You will see colors do not fit.
Thanks for support,
Regards

minrim
Posts: 20
Joined: 11 Sep 2017, 07:46

Re: V.410 video quality problem

Post by minrim » 04 Jan 2018, 00:34

Hello,
Did You try my stream?
Did You see better quallity on TV?
Today i compared same stream with cheap openbox s3 stb, same effect colors/sharpness is better on openbox.
I think s410 have some quallity problems on SD channels, its posible to fix with firmware?
HD channels on S410 plays OK, but SD channels quallity is poor
:(

Thanks for reply.

TMC
Администратор
Posts: 925
Joined: 16 Jan 2014, 13:34

Re: V.410 video quality problem

Post by TMC » 05 Jan 2018, 01:04

We have NY holiday currently, so, this can not be tested quickly.
Do you still have sharpness issues other then color?

minrim
Posts: 20
Joined: 11 Sep 2017, 07:46

Re: V.410 video quality problem

Post by minrim » 05 Jan 2018, 21:51

Using 1080p 50hz quality is little bit better but not good enough. We compared same stream using mag254, openbox s3 and directly decoded stream by tv with tvip s410. Result same - tvip s410 video quality is lowest. It’s easy seen side by side placed two tv's and selected source from different stb. I will repeat, we replaced many openbox s3, mag254 to s410 (we like your stb's for speed! It’s very fast stb) but our users started complain due poor quality.
Problems:
Colors is different
Adds some sharpness easy seen on stream with small text
Motion add some blue.

Pleas compare, I trust You will see difference. On my tv sony bravia 43X8309C directly decoded stream is easy seen that is better quality than s410.
Maybe you can fix this by firmware update.
I want to ask you to investigate.
I talked with colleagues all they also see this issue.
Thanks

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