[mythtv-users] HDMI-Componet Converter/Decoder
Henk D. Schoneveld
belcampo at zonnet.nl
Sat Feb 28 21:12:05 UTC 2015
On 28 Feb 2015, at 19:35, Hika van den Hoven <hikavdh at gmail.com> wrote:
> Hoi Henk,
>
> Saturday, February 28, 2015, 7:17:50 PM, you wrote:
>
>
>> On 28 Feb 2015, at 19:06, Hika van den Hoven <hikavdh at gmail.com> wrote:
>
>>> Hoi Dave,
>>>
>>> Saturday, February 28, 2015, 6:19:05 PM, you wrote:
>>>
>>>> -----Original message-----
>>>> From:Gordon McCrae <gordon.mccrae at gmail.com>
>>>> Sent:Sat 28-02-2015 17:04
>>>> Subject:Re: [mythtv-users] HDMI-Componet Converter/Decoder
>>>> To:mythtv-users at mythtv.org;
>>>>
>>>> On 28/02/15 16:20, Dave Pearson (Lists) wrote:
>>>> -----Original message-----
>>>> From: Henk D. Schoneveld <belcampo at zonnet.nl>
>>>> Sent: Sat 28-02-2015 16:12
>>>> Subject: Re: [mythtv-users] HDMI-Componet Converter/Decoder
>>>> To: Discussion about MythTV <mythtv-users at mythtv.org>;
>>>>
>>>
>>>>
>>>> On 28 Feb 2015, at 10:32, Dave Pearson (Lists) <lists at the-pearsons.co.uk> wrote:
>>>>
>>>>
>>>> I've just installed an HD-PVR in my mythtv system. It's connected
>>>> to a Virgin V-Plus box via S-Video and I'm only able to record in
>>>> 4:3 Aspect Ratio, even though the source material is 16:9.
>>>> The aspect ratio is ‘just’ a replaceable value in your recording,
>>>> which shouldn’t be too difficult to replace in your recorded file.
>>>>
>>>
>>>>
>>>>
>>>> Because of this, I think I have to bite the bullet and get an
>>>> HDMI-Component Converter box. Has anyone any experience of using one of these:
>>>>
>>>
>>>>
>>>>
>>>> Liqoo HDMI to Ypbpr Component AV to VGA SPDIF Converter Adapter R / L 1080P
>>>>
>>>
>>>>
>>>>
>>>> The HDFury2 seems to be very expensive in comparison.
>>>>
>>>
>>>>
>>>>
>>>> I'd also welcome recommendations for any other devices that people
>>>> are using and having success with.
>>>>
>>>
>>>>
>>>>
>>>> Regards,
>>>>
>>>> Dave
>>>> _______________________________________________
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>>>> mythtv-users at mythtv.org
>>>> http://lists.mythtv.org/mailman/listinfo/mythtv-users
>>>> http://wiki.mythtv.org/Mailing_List_etiquette
>>>> MythTV Forums: https://forum.mythtv.org
>>>>
>>>>
>>>
>>>
>>>> _______________________________________________ mythtv-users
>>>> mailing list mythtv-users at mythtv.org
>>>> http://lists.mythtv.org/mailman/listinfo/mythtv-users
>>>> http://wiki.mythtv.org/Mailing_List_etiquette MythTV Forums: https://forum.mythtv.org
>>>
>>>>
>>>
>>>> Hi Henk,
>>>
>>>>
>>>
>>>>
>>>>
>>>
>>>> I've been trying to find a way of replacing that value in the
>>>> recordings, but haven't been able to find one yet, any suggestions would be welcome.
>>>
>>>>
>>>
>>>>
>>>>
>>>
>>>> I am able to watch the recordings in mythfrontend by setting the
>>>> Aspect Ratio override, but that's no good when I'm away from home
>>>> and watching via Plex, so fixing up the recordings would be good.
>>>
>>>>
>>>
>>>>
>>>>
>>>
>>>> Reagrds,
>>>
>>>>
>>>
>>>> Dave.
>>>
>>>> ffmpeg -i InputFile -vcodec copy -acodec copy -aspect 16:9 OutputFile
>>>>
>>>
>>>
>>>> _______________________________________________
>>>
>>>
>>>
>>>>
>>>
>>>> Hi Gordon,
>>>
>>>>
>>>> I've tried that and, unfortunately it doesn't work, here is the
>>>> mediainfo report on an HD-PVR recorded file:
>>>
>>>>
>>>> General
>>>> ID : 0 (0x0)
>>>> Complete name : 2148_20150227210000.mpg
>>>> Format : MPEG-TS
>>>> File size : 893 MiB
>>>> Duration : 1h 0mn
>>>> Overall bit rate mode : Variable
>>>> Overall bit rate : 2 069 Kbps
>>>
>>>> Video
>>>> ID : 4113 (0x1011)
>>>> Menu ID : 1 (0x1)
>>>> Format : AVC
>>>> Format/Info : Advanced Video Codec
>>>> Format profile : Main at L3.1
>>>> Format settings, CABAC : Yes
>>>> Format settings, ReFrames : 4 frames
>>>> Format settings, GOP : M=4, N=32
>>>> Codec ID : 27
>>>> Duration : 1h 0mn
>>>> Bit rate mode : Variable
>>>> Bit rate : 1 579 Kbps
>>>> Maximum bit rate : 20.0 Mbps
>>>> Width : 720 pixels
>>>> Height : 576 pixels
>>>> Display aspect ratio : 4:3
>>>> Frame rate : 25.000 fps
>>>> Standard : PAL
>>>> Color space : YUV
>>>> Chroma subsampling : 4:2:0
>>>> Bit depth : 8 bits
>>>> Scan type : Interlaced
>>>> Scan order : Top Field First
>>>> Bits/(Pixel*Frame) : 0.152
>>>> Stream size : 682 MiB (76%)
>>>> Color primaries : BT.601 PAL
>>>> Transfer characteristics : BT.470 System B, BT.470 System G
>>>> Matrix coefficients : BT.601
>>>
>>>> Audio
>>>> ID : 4352 (0x1100)
>>>> Menu ID : 1 (0x1)
>>>> Format : AC-3
>>>> Format/Info : Audio Coding 3
>>>> Mode extension : CM (complete main)
>>>> Format settings, Endianness : Big
>>>> Codec ID : 129
>>>> Duration : 1h 0mn
>>>> Bit rate mode : Constant
>>>> Bit rate : 384 Kbps
>>>> Channel(s) : 2 channels
>>>> Channel positions : Front: L R
>>>> Sampling rate : 48.0 KHz
>>>> Bit depth : 16 bits
>>>> Compression mode : Lossy
>>>> Delay relative to video : -72ms
>>>> Stream size : 166 MiB (19%)
>>>>
>>>> Regards,
>>>
>>>> Dave.
>>>
>>> As far as I know SCART = PAL so 4:3 but with black bars on top and
>>> bottom for 16:9. If you want to get rid of the bars I think you have
>>> to transcode removing the bars.
>> I don’t think so, he said that aspect override in mythtv solved the
>> problem, only plex and others had the problem, by not having a aspect override option.
>
> I record analog PAL and have my old 16:9 CRT TV connected through a VGA to
> SCART converter. That's what is my experience. Myth zooms in to place
> the bars outside the image. It took me lot of fiddling to get it
> right. Even though the tv is 16:9 the image coming in is 4:3 of which
> I don't use the upper and bottom part.
PAL is 720x576 displayed as 768x576 in 4:3 format and 1024x576 in 16:9 format. Both have their origin in 720 pixels.
720 pixels are displayed over an area that occupies 768 or 1024 pixels, so the pixels have more width than height, non-square.
A VGA interface, like that from a computer only has square pixel formats.
I think the SCART to VGA conversion looses the non-square information and for that reason you’re getting what you get.
>
> Tot mails,
> Hika mailto:hikavdh at gmail.com
>
> "Zonder hoop kun je niet leven
> Zonder leven is er geen hoop
> Het eeuwige dilemma
> Zeker als je hoop moet vernietigen om te kunnen overleven!"
>
> De lerende Mens
>
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