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Latest Message Board Threads at StudioSysAdmins

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    0 0

    Dell/Force10 stacking question.
    posted by Jeremy Lang on Oct. 20, 2014, 1:15 p.m. (1 day ago)
    The "doughnut hole" between 48 ports and more is real PITA.

    In stacking just two S4810 with the 40Gb ports, is it possible to connect all 4 channels for 160Gb stacking fabric bandwidth instead of just two ports? All the diagrams and suck I can find only show 2 connections per switch being used for stacking...

    ______________
    Jeremy M. Lang
    it4vfx
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    The "doughnut hole" between 48 ports and more is real PITA.

    In stacking just two S4810 with the 40Gb ports, is it possible to connect all 4 channels for 160Gb stacking fabric bandwidth instead of just two ports? All the diagrams and suck I can find only show 2 connections per switch being used for stacking...

    ______________
    Jeremy M. Lang
    it4vfx

    0 0
  • 10/20/14--11:05: Premiere 2014.1 and AJA?
  • Premiere 2014.1 and AJA?
    posted by Rob LaRose on Oct. 20, 2014, 2:05 p.m. (1 day ago)

    Any of you guys running Premiere 2014.1 w/ AJA (Kona, TTap, ioXT, whathaveyou)?

    Good experiences or bad?

    Rob


    rob larose
     | engineer | rock paper scissors | 212-255-6446 | www.rockpaperscissors.com

    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     

    Any of you guys running Premiere 2014.1 w/ AJA (Kona, TTap, ioXT, whathaveyou)?

    Good experiences or bad?

    Rob


    rob larose
     | engineer | rock paper scissors | 212-255-6446 | www.rockpaperscissors.com


    0 0

    Dell-Force 10 stacking question
    posted by Jeremy Lang on Oct. 20, 2014, 5:35 p.m. (1 day ago)
    I may've been automoderated out for a couple mistypes in my original message, I never saw it appear anyway...?

    The "doughnut hole" between 48 10g ports and a big chassis continues to vex me.

    In stacking just two S4810 switches, using the 40Gb ports, is it possible to connect all 4 channels for 160Gb stacking fabric bandwidth instead of just two ports? All the diagrams and such I can find only show 2 connections per switch being used for stacking...But if the bandwidth could be doubled...?


    ______________
    Jeremy M. Lang
    it4vfx
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    I may've been automoderated out for a couple mistypes in my original message, I never saw it appear anyway...?

    The "doughnut hole" between 48 10g ports and a big chassis continues to vex me.

    In stacking just two S4810 switches, using the 40Gb ports, is it possible to connect all 4 channels for 160Gb stacking fabric bandwidth instead of just two ports? All the diagrams and such I can find only show 2 connections per switch being used for stacking...But if the bandwidth could be doubled...?


    ______________
    Jeremy M. Lang
    it4vfx

    0 0
  • 10/20/14--18:30: Mellanox 10/40G Switches?
  • Mellanox 10/40G Switches?
    posted by Viet Nguyen on Oct. 20, 2014, 9:30 p.m. (1 day ago)
    Any opinions onMellanox SFP+ Switches and/or opinions on usingMellanox QSFP Switches with breakout SFP+ cables?
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    Any opinions onMellanox SFP+ Switches and/or opinions on usingMellanox QSFP Switches with breakout SFP+ cables?

    0 0

    MOX on Indiegogo - An open source movie format for video and film production
    posted by Fabrice Altman on Oct. 21, 2014, 5:35 a.m.
    FYI https://www.indiegogo.com/projects/mox-file-format/ To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    FYI https://www.indiegogo.com/projects/mox-file-format/ To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    0 0

    Isilon used space issue (new-ish-user)
    posted by Julian Firminger on Oct. 21, 2014, 7:45 a.m.
    I have an SR open with EMC but thought Id open this up for a sanity check in case I'm missing something obvious.

    I have conflicting data on data usage on our cluster. Basically Im missing 150TB.

    du sSHk returns the files size of the primary share at ~200TB (this constitutes 99% of the data)
    InsightIQs FileSystem Performance Usage reporting reports the same number

    but

    isi status returns 350TB used.
    InsightIQs dashboard reports the same used space.

    So am I missing something mental here? Does du / InsightIQ FS perf not factor in the protection copies? Anyone else seen this behavior before?

    Another twist is, a block of about 100TB was deleted (from the cli using rm, not using tree delete) and we never saw that space returned. Prompting an operator to ask "does the Isilon have a trash can...". But i digress.

    Thanks in advance.

    Julian Firminger

    Snr. Systems Administrator,
    United Broadcast Facilities
    Amsterdam, The Netherlands
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    I have an SR open with EMC but thought Id open this up for a sanity check in case I'm missing something obvious.

    I have conflicting data on data usage on our cluster. Basically Im missing 150TB.

    du sSHk returns the files size of the primary share at ~200TB (this constitutes 99% of the data)
    InsightIQs FileSystem Performance Usage reporting reports the same number

    but

    isi status returns 350TB used.
    InsightIQs dashboard reports the same used space.

    So am I missing something mental here? Does du / InsightIQ FS perf not factor in the protection copies? Anyone else seen this behavior before?

    Another twist is, a block of about 100TB was deleted (from the cli using rm, not using tree delete) and we never saw that space returned. Prompting an operator to ask "does the Isilon have a trash can...". But i digress.

    Thanks in advance.

    Julian Firminger

    Snr. Systems Administrator,
    United Broadcast Facilities
    Amsterdam, The Netherlands

    0 0
  • 10/21/14--09:15: Mechanical keyboard love.
  • Mechanical keyboard love.
    posted by Saham Ali on Oct. 21, 2014, 12:15 p.m.
    Just wanted to drop a note, I am one who loves the feel of a mechanical keyboard, and its been almost impossible to go to any studio and find one.


    My buddy just hooked me up with a nice little present.

    The Monoprice mechanical gaming keyboard!


    Been using it for the last 2 days, and I am in love!

    Clickety Clack FTW!!!

    Bit pricey, but worth it. Has good weight too.

    --
    ,\|//,
    ( o - )
    -oOO--(_)--Ooo-----------------
    Saham Ali
    Founder/Systems Engineer
    DvNT Technologies
    saham@dvnttechnologies.com
    407.729.3584 - Direct

    .ooO
    ( ) Ooo.
    --\ ( ------( )-------------------
    \_) ) /
    (_/
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    Just wanted to drop a note, I am one who loves the feel of a mechanical keyboard, and its been almost impossible to go to any studio and find one.


    My buddy just hooked me up with a nice little present.

    The Monoprice mechanical gaming keyboard!


    Been using it for the last 2 days, and I am in love!

    Clickety Clack FTW!!!

    Bit pricey, but worth it. Has good weight too.

    --
    ,\|//,
    ( o - )
    -oOO--(_)--Ooo-----------------
    Saham Ali
    Founder/Systems Engineer
    DvNT Technologies
    saham@dvnttechnologies.com
    407.729.3584 - Direct

    .ooO
    ( ) Ooo.
    --\ ( ------( )-------------------
    \_) ) /
    (_/

    0 0

    MOX on Indiegogo - An open source movie format for video and film production
    posted by Jean-Francois Panisset on Oct. 21, 2014, 5:10 p.m. (1 day ago)
    I am a bit puzzled as to what they want to do. They want to use MXF as a container format, and only support frame-by-framecodecs (Dirac, OpenEXR, DPX, PNG and JPEG), all of which already exists as open source code, and doesn't really address the real problem which is the IP jungle around anything but the most trivial codecs. So even if there is an open source implementation, you can't use it in a commercial setting without offering up a pound of flesh.

    Don't get me wrong, I would love to see QuickTime banished from our industry, but I'm not sure how this will help.

    JF


    On Tue, Oct 21, 2014 at 2:33 AM, Fabrice Altman <fabrice@studioaka.co.uk> wrote:
    FYI
    https://www.indiegogo.com/projects/mox-file-format/




    To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    I am a bit puzzled as to what they want to do. They want to use MXF as a container format, and only support frame-by-framecodecs (Dirac, OpenEXR, DPX, PNG and JPEG), all of which already exists as open source code, and doesn't really address the real problem which is the IP jungle around anything but the most trivial codecs. So even if there is an open source implementation, you can't use it in a commercial setting without offering up a pound of flesh.

    Don't get me wrong, I would love to see QuickTime banished from our industry, but I'm not sure how this will help.

    JF


    On Tue, Oct 21, 2014 at 2:33 AM, Fabrice Altman <fabrice@studioaka.co.uk> wrote:
    FYI
    https://www.indiegogo.com/projects/mox-file-format/




    To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe


    0 0

    what bits make up a HVAC solution?
    posted by Greg Whynott on Oct. 21, 2014, 5:30 p.m. (1 day ago)

    We were looking at a space to lease, we said to the property manager during the initial viewing "if you build our data centre with 1000 amp service and 60 tons of HVAC, we'll take it" They said yes.


    fast forward a few months and now they are saying "we put the heat exchanger on the roof, and provide you chilled glycol, its up to you to install the condenser and blower units". Pulling what smells like car sales men tactics too, " we thought you understood this, its standard."..

    My understanding of a HVAC solution is one that includes all the bits front to back to cool a space, not half of what is required to do so.

    What is your understanding of what an HVAC solution is? is it only the roof top component or is it an all encompassing solution that has everything required to cool down a space?

    so many cheezy mofos out there...



    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     

    We were looking at a space to lease, we said to the property manager during the initial viewing "if you build our data centre with 1000 amp service and 60 tons of HVAC, we'll take it" They said yes.


    fast forward a few months and now they are saying "we put the heat exchanger on the roof, and provide you chilled glycol, its up to you to install the condenser and blower units". Pulling what smells like car sales men tactics too, " we thought you understood this, its standard."..

    My understanding of a HVAC solution is one that includes all the bits front to back to cool a space, not half of what is required to do so.

    What is your understanding of what an HVAC solution is? is it only the roof top component or is it an all encompassing solution that has everything required to cool down a space?

    so many cheezy mofos out there...




    0 0

    Read performance firmware fix for Samsung 840 EVO SSDs
    posted by Jean-Francois Panisset on Oct. 21, 2014, 11 p.m. (1 day ago)
    http://www.computerworld.com/article/2836082/samsung-delivers-fix-for-ssd-slowdowns.html

    We've deployed 840 Pros, so far the fix (and problem?) seems to be specific to the EVO.

    On a related note, anyone played with the 850 Pros yet?

    JF

    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    http://www.computerworld.com/article/2836082/samsung-delivers-fix-for-ssd-slowdowns.html

    We've deployed 840 Pros, so far the fix (and problem?) seems to be specific to the EVO.

    On a related note, anyone played with the 850 Pros yet?

    JF


    0 0
  • 10/21/14--22:05: Yosemite?
  • Yosemite?
    posted by James Bourne on Oct. 22, 2014, 1:05 a.m.
    Anyone taken the plunge yet? Feedback / issues? Especially in regard to FCPX, Smoke and SMB ...

    Cheers,

    James
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    Anyone taken the plunge yet? Feedback / issues? Especially in regard to FCPX, Smoke and SMB ...

    Cheers,

    James

    0 0
  • 10/22/14--01:35: HDSDI->HDMI converter?
  • HDSDI->HDMI converter?
    posted by  on Oct. 22, 2014, 4:35 a.m.
    Hi, y'all This is kind of a big ask i know, but is there anyone in Soho (London) who has an HDSDI->HDMI converter, ie BM Mini or Aja etc, that they wouldn't mind loaning us for a couple of days? Need to check out some recent changes in Nuke's monitor out over SDI using our 4K Extreme thanks! - cal@bluebolt On 22/10/14 07:29, Jimmy Christensen wrote: > They are missing their highest goal : >> $PRICE_OF_APPLE: Quicktime Player out-of-the-box support >> - Jimmy >> On Tue, Oct 21, 2014 at 11:33 AM, Fabrice Altman > wrote: >> FYI >> https://www.indiegogo.com/projects/mox-file-format/ >>>>>>>>>> To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe > To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    Hi, y'all This is kind of a big ask i know, but is there anyone in Soho (London) who has an HDSDI->HDMI converter, ie BM Mini or Aja etc, that they wouldn't mind loaning us for a couple of days? Need to check out some recent changes in Nuke's monitor out over SDI using our 4K Extreme thanks! - cal@bluebolt On 22/10/14 07:29, Jimmy Christensen wrote: > They are missing their highest goal : >> $PRICE_OF_APPLE: Quicktime Player out-of-the-box support >> - Jimmy >> On Tue, Oct 21, 2014 at 11:33 AM, Fabrice Altman > wrote: >> FYI >> https://www.indiegogo.com/projects/mox-file-format/ >>>>>>>>>> To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe > To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    0 0
  • 10/22/14--08:55: Free Racks
  • Free Racks
    posted by  on Oct. 22, 2014, 11:55 a.m.
    Hey there, I've got two racks that we're about to throw out and thought someone here may want to take them off of our hands. http://imgur.com/XTnyfFR http://imgur.com/8ALJaYt We're located in Burbank and you would need to arrange for a pick-up. I'll dump them at the end of the week unless someone wants them. -Daniel To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    Hey there, I've got two racks that we're about to throw out and thought someone here may want to take them off of our hands. http://imgur.com/XTnyfFR http://imgur.com/8ALJaYt We're located in Burbank and you would need to arrange for a pick-up. I'll dump them at the end of the week unless someone wants them. -Daniel To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    0 0

    anyone have spare isilon 3000i sitting around in LA?
    posted by  on Oct. 22, 2014, noon
    anyone have three 3000is sitting around that they could loan us for a short time?

    We had a power outage, and we had a few old isilon nodes that didn't come back up. The data on these nodes is not critical, but it would be nice to recover it. I am looking to try a drive/controller card swap, get the data I need, then throw them off the pier.

    Thanks
    -Brent
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    anyone have three 3000is sitting around that they could loan us for a short time?

    We had a power outage, and we had a few old isilon nodes that didn't come back up. The data on these nodes is not critical, but it would be nice to recover it. I am looking to try a drive/controller card swap, get the data I need, then throw them off the pier.

    Thanks
    -Brent

    0 0

    anyone have spare isilon 3000i sitting around in LA?
    posted by Saker Klippsten on Oct. 22, 2014, 12:25 p.m.
    What's the error. Anything? Most likely nvram card is bad vs the controller. Bad nvram will prevent the system from booting up all the way. If you have two nodes that are bad it's going to be tuff to recover as the journal on disk might be inconsistent What version of OneFS? I have some spare nvram cards if you need them. > On Oct 22, 2014, at 8:58 AM, Brent Hensarling wrote: >> anyone have three 3000is sitting around that they could loan us for a short time? >> We had a power outage, and we had a few old isilon nodes that didn't come back up. The data on these nodes is not critical, but it would be nice to recover it. I am looking to try a drive/controller card swap, get the data I need, then throw them off the pier. >> Thanks > -Brent > To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    What's the error. Anything? Most likely nvram card is bad vs the controller. Bad nvram will prevent the system from booting up all the way. If you have two nodes that are bad it's going to be tuff to recover as the journal on disk might be inconsistent What version of OneFS? I have some spare nvram cards if you need them. > On Oct 22, 2014, at 8:58 AM, Brent Hensarling wrote: >> anyone have three 3000is sitting around that they could loan us for a short time? >> We had a power outage, and we had a few old isilon nodes that didn't come back up. The data on these nodes is not critical, but it would be nice to recover it. I am looking to try a drive/controller card swap, get the data I need, then throw them off the pier. >> Thanks > -Brent > To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    0 0
  • 10/22/14--10:20: Free Short Racks in Burbank
  • Free Short Racks in Burbank
    posted by Daniel Hasenstaub on Oct. 22, 2014, 1:20 p.m.
    Hey there, I've got two racks that we're about to throw out and thought someone here may want to take them off of our hands. http://imgur.com/XTnyfFR http://imgur.com/8ALJaYt We're located in Burbank and you would need to arrange for a pick-up. I'll dump them at the end of the week unless someone wants them. Email me off list if you have any questions. -D To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe
    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    Hey there, I've got two racks that we're about to throw out and thought someone here may want to take them off of our hands. http://imgur.com/XTnyfFR http://imgur.com/8ALJaYt We're located in Burbank and you would need to arrange for a pick-up. I'll dump them at the end of the week unless someone wants them. Email me off list if you have any questions. -D To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    0 0
  • 10/22/14--11:05: Why use MOX?
  • Why use MOX?
    posted by  on Oct. 22, 2014, 2:05 p.m.
    The MOX creator Brendan Bolles is planning to join the group, but in the mean time here's his reply to you:

    Actually, Dirac supports an inter-frame mode, and MOX will support that.  It will also let you use the intra-frame-only version known as Dirac Pro.  Not that I think intra-frame-only is a problem; ProRes is an I-frame codec and it seems to be pretty popular.
    
    Asking why we want to do this when all these still image formats already exist is just asking why anyone would want to use a movie format in general.  Different people will have different answers, like the easy bundling of audio with video, having timing information as an explicit part of the file, better compatibility with editing programs which tend to be movie-based.  Some people have no desire to use a movie format, so MOX will be of no interest to them.
    
    MOX does wade through the IP jungle, we hope.  Dirac was the first non-trivial patent-free codec AFAIK.  (Now there's also VP8/9, but that's not really suitable for production.)  Since the the LZW patents have expired, I don't think any still image formats have patent issues anymore, not that any of ours use LZW anyway.  We're not going anywhere near MPEG-2, ProRes, or H.264 precisely because of the patents.  Will wait to see if SMPTE VC-5 (i.e. CineForm) has patent issues; I'm guessing it will.
    
    
    
    Brendan




    On 01/-10/-28163 11:59 AM, Jean-Francois Panisset wrote:
    I am a bit puzzled as to what they want to do. They want to use MXF as a container format, and only support frame-by-framecodecs (Dirac, OpenEXR, DPX, PNG and JPEG), all of which already exists as open source code, and doesn't really address the real problem which is the IP jungle around anything but the most trivial codecs. So even if there is an open source implementation, you can't use it in a commercial setting without offering up a pound of flesh.

    Don't get me wrong, I would love to see QuickTime banished from our industry, but I'm not sure how this will help.

    JF


    On Tue, Oct 21, 2014 at 2:33 AM, Fabrice Altman <fabrice@studioaka.co.uk> wrote:
    FYI
    https://www.indiegogo.com/projects/mox-file-format/




    To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe


    Thread Tags:
      discuss-at-studiosysadmins 

    0 Responses     0 Plus One's     0 Comments  
     
    The MOX creator Brendan Bolles is planning to join the group, but in the mean time here's his reply to you:

    Actually, Dirac supports an inter-frame mode, and MOX will support that.  It will also let you use the intra-frame-only version known as Dirac Pro.  Not that I think intra-frame-only is a problem; ProRes is an I-frame codec and it seems to be pretty popular.
    
    Asking why we want to do this when all these still image formats already exist is just asking why anyone would want to use a movie format in general.  Different people will have different answers, like the easy bundling of audio with video, having timing information as an explicit part of the file, better compatibility with editing programs which tend to be movie-based.  Some people have no desire to use a movie format, so MOX will be of no interest to them.
    
    MOX does wade through the IP jungle, we hope.  Dirac was the first non-trivial patent-free codec AFAIK.  (Now there's also VP8/9, but that's not really suitable for production.)  Since the the LZW patents have expired, I don't think any still image formats have patent issues anymore, not that any of ours use LZW anyway.  We're not going anywhere near MPEG-2, ProRes, or H.264 precisely because of the patents.  Will wait to see if SMPTE VC-5 (i.e. CineForm) has patent issues; I'm guessing it will.
    
    
    
    Brendan




    On 01/-10/-28163 11:59 AM, Jean-Francois Panisset wrote:
    I am a bit puzzled as to what they want to do. They want to use MXF as a container format, and only support frame-by-framecodecs (Dirac, OpenEXR, DPX, PNG and JPEG), all of which already exists as open source code, and doesn't really address the real problem which is the IP jungle around anything but the most trivial codecs. So even if there is an open source implementation, you can't use it in a commercial setting without offering up a pound of flesh.

    Don't get me wrong, I would love to see QuickTime banished from our industry, but I'm not sure how this will help.

    JF


    On Tue, Oct 21, 2014 at 2:33 AM, Fabrice Altman <fabrice@studioaka.co.uk> wrote:
    FYI
    https://www.indiegogo.com/projects/mox-file-format/




    To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe



    0 0

    ProRes 4444 -- RGB or YCbCr? The L-O-L-A of ProRes?
    posted by Rob LaRose on Oct. 23, 2014, 10:30 a.m.

    Good morning!

    Im studying the ProRes 4444.  Wont you all come on a journey with me?

    The spec for ProRes 4444 spec is disappointingly vague, saying it can encode from and decode to either YCbCr or RGB:

      4:4:4 is the highest-quality format for preserving chroma detail. In 4:4:4 image
    sources, there is no subsampling, or averaging, of chroma information. There are
    three unique samples, either Y, CB, and CR or R, G, and B, for every pixel location.
    Apple ProRes 4444 XQ and Apple ProRes 4444 fully support 4:4:4 image sources, from
    either RGB or YCBCR color spaces.

    So does anyone know the hard truth on the subject?  Does it always store info as RGB, but will encode from YCbCr if fed that, and decode to YCbCr if asked for it?  

    Practically speaking, Im trying to figure out if ProRes 4444 exported from Flame is really RGB or not, but the more I read, the more I wonder if theres any way to know what youre getting when you encode or decode in any given application.  Codecs that go both ways are confusing and scary.

    Rob


    rob larose | engineer | rock paper scissors | 212-255-6446 | www.rockpaperscissors.com

    Thread Tags:
      discuss-at-studiosysadmins 

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    Good morning!

    Im studying the ProRes 4444.  Wont you all come on a journey with me?

    The spec for ProRes 4444 spec is disappointingly vague, saying it can encode from and decode to either YCbCr or RGB:

      4:4:4 is the highest-quality format for preserving chroma detail. In 4:4:4 image
    sources, there is no subsampling, or averaging, of chroma information. There are
    three unique samples, either Y, CB, and CR or R, G, and B, for every pixel location.
    Apple ProRes 4444 XQ and Apple ProRes 4444 fully support 4:4:4 image sources, from
    either RGB or YCBCR color spaces.

    So does anyone know the hard truth on the subject?  Does it always store info as RGB, but will encode from YCbCr if fed that, and decode to YCbCr if asked for it?  

    Practically speaking, Im trying to figure out if ProRes 4444 exported from Flame is really RGB or not, but the more I read, the more I wonder if theres any way to know what youre getting when you encode or decode in any given application.  Codecs that go both ways are confusing and scary.

    Rob


    rob larose | engineer | rock paper scissors | 212-255-6446 | www.rockpaperscissors.com


    0 0

    ProRes 4444 -- RGB or YCbCr? The L-O-L-A of ProRes?
    posted by Ben De Luca on Oct. 23, 2014, 10:40 a.m.
    exported from flame how?

    On Thu, Oct 23, 2014 at 10:23 PM, Rob LaRose <rlarose@rockpaperscissors.com> wrote:

    Good morning!

    Im studying the ProRes 4444. Wont you all come on a journey with me?

    The spec for ProRes 4444 spec is disappointingly vague, saying it can encode from and decode to either YCbCr or RGB:

    4:4:4 is the highest-quality format for preserving chroma detail. In 4:4:4 image
    sources, there is no subsampling, or averaging, of chroma information. There are
    three unique samples, either Y, CB, and CRor R, G, and B, for every pixel location.
    Apple ProRes 4444 XQ and Apple ProRes 4444 fully support 4:4:4 image sources, from
    either RGB or YCBCRcolor spaces.

    So does anyone know the hard truth on the subject? Does it always store info as RGB, but will encode from YCbCr if fed that, and decode to YCbCr if asked for it?

    Practically speaking, Im trying to figure out if ProRes 4444 exported from Flame is really RGB or not, but the more I read, the more I wonder if theres any way to know what youre getting when you encode or decode in any given application. Codecs that go both ways are confusing and scary.

    Rob


    rob larose| engineer | rock paper scissors |212-255-6446|www.rockpaperscissors.com


    To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

    Thread Tags:
      discuss-at-studiosysadmins 

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    exported from flame how?

    On Thu, Oct 23, 2014 at 10:23 PM, Rob LaRose <rlarose@rockpaperscissors.com> wrote:

    Good morning!

    Im studying the ProRes 4444. Wont you all come on a journey with me?

    The spec for ProRes 4444 spec is disappointingly vague, saying it can encode from and decode to either YCbCr or RGB:

    4:4:4 is the highest-quality format for preserving chroma detail. In 4:4:4 image
    sources, there is no subsampling, or averaging, of chroma information. There are
    three unique samples, either Y, CB, and CRor R, G, and B, for every pixel location.
    Apple ProRes 4444 XQ and Apple ProRes 4444 fully support 4:4:4 image sources, from
    either RGB or YCBCRcolor spaces.

    So does anyone know the hard truth on the subject? Does it always store info as RGB, but will encode from YCbCr if fed that, and decode to YCbCr if asked for it?

    Practically speaking, Im trying to figure out if ProRes 4444 exported from Flame is really RGB or not, but the more I read, the more I wonder if theres any way to know what youre getting when you encode or decode in any given application. Codecs that go both ways are confusing and scary.

    Rob


    rob larose| engineer | rock paper scissors |212-255-6446|www.rockpaperscissors.com


    To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe


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    anyone have spare isilon 3000i sitting around in LA?
    posted by James Pearson on Oct. 23, 2014, 11:40 a.m.
    Brent Hensarling wrote: > anyone have three 3000is sitting around that they could loan us for a short > time? >> We had a power outage, and we had a few old isilon nodes that didn't come > back up. The data on these nodes is not critical, but it would be nice to > recover it. I am looking to try a drive/controller card swap, get the data > I need, then throw them off the pier. We had problems with the memory in a number of nodes of that generation - all worked fine while powered on, but once powered off for a short while, the nodes failed to boot After the memory was swapped, they booted fine James Pearson To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe
    Thread Tags:
      discuss-at-studiosysadmins 

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    Brent Hensarling wrote: > anyone have three 3000is sitting around that they could loan us for a short > time? >> We had a power outage, and we had a few old isilon nodes that didn't come > back up. The data on these nodes is not critical, but it would be nice to > recover it. I am looking to try a drive/controller card swap, get the data > I need, then throw them off the pier. We had problems with the memory in a number of nodes of that generation - all worked fine while powered on, but once powered off for a short while, the nodes failed to boot After the memory was swapped, they booted fine James Pearson To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

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