Any way to stop Firestick dropping frames?

Any way to stop Firestick dropping frames?

Author
Discussion

Ken Figenus

Original Poster:

5,714 posts

118 months

Wednesday 7th December 2016
quotequote all
Its fine on UK/Euro produced 50Hz 25P/50i stuff but when it is on US 24p or 60i stuff it just drops frames as it tries to CONVERT the source to its menu set 50Hz output. It doesnt do a good job!!! It drops frames on 60Hz and repeats a frame on 24p - every one second. Drives me potty! I guess there is no solution other than a Smart TV...?

Ken Figenus

Original Poster:

5,714 posts

118 months

Wednesday 7th December 2016
quotequote all
It is mate - thanks. But its unworkable to have to guess and set framerate per source as you flick channels! B thing should just pass through the source framerate as native and the display will deal with it!

Ken Figenus

Original Poster:

5,714 posts

118 months

Thursday 8th December 2016
quotequote all
Personally I don't think that is fit for purpose then mate. I've seen editors hauled over the coals for jump cuts they haven't spotted and programmes fail QC - and here's Amazon doing them willy nilly!

Ken Figenus

Original Poster:

5,714 posts

118 months

Thursday 8th December 2016
quotequote all
karma mechanic said:
When I read the OP I was thinking 'but mine doesn't do that...'

But mine is the Fire TV, not the stick. Anyway, I just checked some 'Bosch' and 'Mozart in the Jungle', frame rate is reported by the projector as 23.99 Hz. On 1080p/60 material the frame rate is reported as 59.94 Hz. That's with everything on Auto. I've never noticed any dropped frames or judder.

So being curious I plugged in a Fire Stick from upstairs, and it seems to be on 60.14 Hz for the same material, again on Auto. What material shows the problem?

(For completeness, both the Fire TV and the Fire Stick are on Fire OS 5.2.1.1)
Do you see the screen re-clock/go to black mate as you select US originated v say a BBC drama? Yours seems to switch nicely and feed the TV with whatever source framerate it gets - natively.

Ken Figenus

Original Poster:

5,714 posts

118 months

Friday 9th December 2016
quotequote all
99.99% definite they would have shot The Fall 25P

Light reading BBC Spec: http://dpp-assets.s3.amazonaws.com/wp-content/uplo...

2.1 High Definition Format
All material delivered for UK HD TV transmission must be:
 1920 x 1080 pixels in an aspect ratio of 16:9
 25 frames per second (50 fields) interlaced - now known as 1080i/25.
 colour sub-sampled at a ratio of 4:2:2
The HD format is fully specified in ITU-R BT.709-5 Part 2.

No artificial de-interlacing allowed:

2.1.3 Film motion or ‘film effect’
It is not acceptable to shoot in 1080i/25 and add a film motion effect in post-production. Most High
Definition cameras can capture in either 1080i/25 or 1080p/25. Where film motion is a requirement,
progressive capture is the only acceptable method.

Why yours doesn't stutter locking to 60Hz (prob US 60Hz = 59.978) on a std 50Hz source I dont know!

Watched Vikings on it last night in auto mode - counted 3789 dropped frames and went to bed fuming! biggrinbiggrinwink




Ken Figenus

Original Poster:

5,714 posts

118 months

Friday 9th December 2016
quotequote all
I'd see that 3:2! This is still the legacy of analogue transmission and tube TV's. Hopefully will all be gone soon!

Ken Figenus

Original Poster:

5,714 posts

118 months

Friday 9th December 2016
quotequote all
Does a PS4 crappily re-clock (drop frames) too - as I was about to try that!