Difference between revisions of "Digital Cinema Content Conversion"

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(New page: == Introduction == This is the current AllNighter ticket sales procedure, when WSC is also selling tickets online via the SU website. If you do not understand, or would like any training...)
 
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== Introduction ==
 
== Introduction ==
   
  +
This is a step-by-step guide for converting a video to a ''Digital Cinema Package'' (DCP) which we can play from our digital projection system. The main steps are:
This is the current AllNighter ticket sales procedure, when WSC is also selling tickets online via the SU website.
 
   
  +
# Log on to the WSCDCP account on 192.168.1.36. All necessary software is installed on this computer.
If you do not understand, or would like any training, please contact the Chief Duty Manager.
 
  +
# Obtain the highest quality copy of the source video you can.
  +
# Set up an appropriate sequence in ''Premiere Pro'', based on the aspect ratio and frame rate of the source video.
  +
# Export the soundtrack as a multi-channel WAV file, after volume correction in ''Soundbooth''.
  +
# Export the picture sequence as JPEG2000 files from ''Premiere Pro'', after any necessary scaling, cropping and masking.
  +
# Combine the sound and picture streams into a DCP using ''OpenDCP''.
  +
# Ingest the finished DCP and ensure it gets tested before use in a playlist. You will need a qualified projectionist to help with testing.
   
   
== Selling Tickets on POS ==
+
== Logging in to WSCDCP ==
   
  +
# From a computer at Filmsoc, open the Windows ''Remote Desktop Connection'' wizard from the start menu. In the computer field, type "192.168.1.36" and click Connect. (If this doesn't work contact the IT officer.)<br /> [[Image:01_remote_desktop.PNG|none|frame|Connect remotely to 192.168.1.36|left]] <br />
* Choose 'Sale' on the Main Menu
 
  +
# When prompted, enter the username "wscdcp". The password follows the usual Filmsoc password convention. Hit OK. If a window pops up saying "The identity of the remote computer cannot be verified. Do you want to connect anyway?", press Yes. <br /> [[Image:02_wscdcp_credentials.PNG|none|frame|Connect using username "wscdcp"|left]] <br />
[[Image:Menu.PNG|400px|center]]
 
  +
# You should now see the Digital Content Conversion desktop. The necessary software (''Chrome'', ''Explorer'', ''OpenDCP'', ''Premiere Pro'', ''Soundbooth'' and ''VNC Viewer'') is all pinned to the taskbar in the bottom left. <br /> [[Image:03_wscdcp_desktop.png|none|thumb|Desktop on wscdpc|left|600px]] <br />
* Scan University Card
 
[[Image:Card.PNG|400px|center]]
 
* Type 'AllNighter'
 
[[Image:Selection.PNG|400px|center]]
 
* Choose appropriate ticket
 
[[Image:Selected.PNG|400px|center]]
 
* Complete Transaction
 
[[Image:Money.PNG|400px|center]]
 
* Mark 'Collected' or 'Collect Later'
 
   
  +
== Choosing good quality source videos ==
   
  +
The most important factor about choosing a video to convert is what quality it is. There are pretty much two factors which affect the quality of a video - the bitrate and the resolution. The bitrate is the amount of information contained per second, and the resolution is the number of pixels in each frame.
== Collecting Tickets ==
 
   
  +
Ideally, of course, you want to start with something high bitrate and high resolution. A great place to find HD Trailers at a good bitrate is [http://http://www.hd-trailers.net/ hd-trailers.net], which has pretty much all recent trailers. The best ones to go for tend to be the HD-trailers own videos (as they don't have watermarks), but they often don't exist, in which case the Apple trailers tend to have the biggest file size.
* Go to 'Collections' on the Main Menu
 
[[Image:Collection.PNG|400px|center]]
 
* Scan University Card
 
[[Image:Collect.PNG|400px|center]]
 
* Collectable Tickets will be listed - '''those with Green Tickets are selected, those collected have a Red No-Entry sign'''
 
* Click Ticket that has been collected - Green Tick will show, '''the AVAILABLE text does not change yet'''
 
[[Image:Collected.PNG|400px|center]]
 
* Press 'OK'
 
   
  +
If you're looking for a trailer from pre 2010, though, chances are you won't find it on HD-Trailers, and it's a bit harder to find good source material. Some videos have high resolution but low bitrate (HD videos on Youtube, for example), and some have high bitrate and low resolution (ripped from DVD, for example). With the digital projection system we use, bitrate seems much more important than resolution, so if you have a choice of source videos, keep that in mind.
* Go to WSC EPOS
 
* Scan University Card
 
[[Image:AllNighterEPOS.PNG|400px|center]]
 
* Print Appropriate Ticket - these are all free collection tickets
 
   
  +
== Setting up the Workspace ==
* '''Please remember to print SU POS Reports when closing tills!'''
 
  +
<br /> [[Image:04_codec_information.PNG|none|thumb|Use ''VLC'' to find aspect ratio, frame rate and number of audio channels|left|600px]] <br />
  +
<br /> Make a new folder in ''Documents/conversions/'' as a workspace to store all the relevant files for the trailer.<br />
  +
<br /> [[Image:05_new_project.PNG|none|thumb|Create a new ''Premiere Pro'' project in working folder|left|600px]] <br />
  +
<br /> [[Image:06_sequence_settings.PNG|none|thumb|Choose appropriate sequence settings from custom presets|left|600px]] <br />
  +
<br /> [[Image:07_interpret_footage1.PNG|none|thumb|Ensure the video frame rate matches the sequence|left|600px]] <br />
  +
<br /> [[Image:08_interpret_footage2.PNG|none|thumb|Ensure the video frame rate matches the sequence|left|600px]] <br />
  +
<br /> [[Image:09_change_scale.PNG|none|thumb|'''Scale video''' to correct size, ensuring any '''watermarks''' are cropped off, as well as getting rid of '''black bars''' on the sides or top and bottom.|left|600px]] <br />
  +
<br /> [[Image:10_black_video.PNG|none|thumb|Cover MPAA logo, if present, with black video|left|600px]] <br />
   
  +
== Exporting soundtrack ==
   
  +
<br /> [[Image:11_render_and_replace.PNG|none|thumb|Edit audio in ''Soundbooth'' using Render and Replace|left|600px]] <br />
== Refunding Tickets ==
 
   
  +
<br /> [[Image:12_24_bit_audio.PNG|none|thumb|Save soundtrack as multichannel WAV, ensuring Sample Type is set to 24 bit. You'll need to give it a new name; call it something like ''trl_sound.wav''.|left|600px]] <br />
An SU Transaction Number is required. Tickets sold online to be refunded should be done at Warwick SU Reception.
 
   
  +
== Exporting picture sequence ==
* Check if Ticket Collected (see Collecting Tickets)
 
[[Image:Collected.PNG|400px|center]]
 
* Obtain ticket if already collected
 
* Go to 'Refund' on the Main Menu
 
[[Image:Refund.PNG|400px|center]]
 
* Scan University Card
 
* Enter Receipt Number (at bottom of SU Receipts)
 
[[Image:Midrefund.PNG|400px|center]]
 
* Remove items that are NOT to be refunded
 
* Complete Transaction
 
   
  +
Click on the timeline then go to '''File -> Export -> Media'''
  +
<br /> [[Image:13_export_settings_highlited.PNG|none|thumb|Export picture as sequence of JPEG 2000 images.|left|600px]] <br />
  +
Make sure the '''aspect ratio''' is correct (1998x1080 for Flat and 2048x858 for Scope). Also, make sure you '''save''' the ''j2c'' 's in its own folder within the working folder e.g. ''TRL J2C'' (can be done by clicking 'Output Name'.) Press '''Export''' when ready (takes around 15-20 mins for 2 minute trailer.)
   
  +
== Creating the DCP ==
  +
Open ''OpenDCP'' to create the DCP for the trailer
  +
<br /> [[Image:14_mxf_audio.PNG|none|thumb|Create audio MXF. Change MXF type to WAV and Sound Input Type to Multi-Channel. The input file should be be the trailer audio WAV file. The output should be called ''sound''.|left|600px]] <br />
   
  +
<br /> [[Image:15_mxf_picture.PNG|none|thumb|Create picture MXF. Select the folder in which the j2c's were exported to. Call the output ''picture''.|left|600px]] <br />
[[Category:FoH]]
 
  +
[[Category:FoH_Guides]]
 
  +
<br /> [[Image:16_dcp_creation_highlighted.PNG|none|thumb|Create DCP XML files.|left|600px]] <br />
  +
Give an appropriate name/annotation. Make sure ''kind'' is set to ''trailer''. Picture/sound input files should be the MXF's you made before. Note that the DCP can only be created if the number of frames match up. Click '''Create DCP''' and you are prompted to select a folder; create one with the same name given to the DCP and select that.
  +
  +
== Ingesting and testing ==
  +
Copy the folder containing the DCP into ''DCinema/WSC_HOMEMADE_TRAILERS'' (in FILMBANK).
  +
  +
[[Category:Proj]]
  +
[[Category:Tech]]
  +
[[Category:Marketing]]
 
[[Category:User_Guides]]
 
[[Category:User_Guides]]
  +
[[Category:Digital Projection Manual]]

Latest revision as of 22:41, 6 March 2019

Introduction

This is a step-by-step guide for converting a video to a Digital Cinema Package (DCP) which we can play from our digital projection system. The main steps are:

  1. Log on to the WSCDCP account on 192.168.1.36. All necessary software is installed on this computer.
  2. Obtain the highest quality copy of the source video you can.
  3. Set up an appropriate sequence in Premiere Pro, based on the aspect ratio and frame rate of the source video.
  4. Export the soundtrack as a multi-channel WAV file, after volume correction in Soundbooth.
  5. Export the picture sequence as JPEG2000 files from Premiere Pro, after any necessary scaling, cropping and masking.
  6. Combine the sound and picture streams into a DCP using OpenDCP.
  7. Ingest the finished DCP and ensure it gets tested before use in a playlist. You will need a qualified projectionist to help with testing.


Logging in to WSCDCP

  1. From a computer at Filmsoc, open the Windows Remote Desktop Connection wizard from the start menu. In the computer field, type "192.168.1.36" and click Connect. (If this doesn't work contact the IT officer.)
    Connect remotely to 192.168.1.36

  2. When prompted, enter the username "wscdcp". The password follows the usual Filmsoc password convention. Hit OK. If a window pops up saying "The identity of the remote computer cannot be verified. Do you want to connect anyway?", press Yes.
    Connect using username "wscdcp"

  3. You should now see the Digital Content Conversion desktop. The necessary software (Chrome, Explorer, OpenDCP, Premiere Pro, Soundbooth and VNC Viewer) is all pinned to the taskbar in the bottom left.
    Desktop on wscdpc

Choosing good quality source videos

The most important factor about choosing a video to convert is what quality it is. There are pretty much two factors which affect the quality of a video - the bitrate and the resolution. The bitrate is the amount of information contained per second, and the resolution is the number of pixels in each frame.

Ideally, of course, you want to start with something high bitrate and high resolution. A great place to find HD Trailers at a good bitrate is hd-trailers.net, which has pretty much all recent trailers. The best ones to go for tend to be the HD-trailers own videos (as they don't have watermarks), but they often don't exist, in which case the Apple trailers tend to have the biggest file size.

If you're looking for a trailer from pre 2010, though, chances are you won't find it on HD-Trailers, and it's a bit harder to find good source material. Some videos have high resolution but low bitrate (HD videos on Youtube, for example), and some have high bitrate and low resolution (ripped from DVD, for example). With the digital projection system we use, bitrate seems much more important than resolution, so if you have a choice of source videos, keep that in mind.

Setting up the Workspace


Use VLC to find aspect ratio, frame rate and number of audio channels



Make a new folder in Documents/conversions/ as a workspace to store all the relevant files for the trailer.


Create a new Premiere Pro project in working folder



Choose appropriate sequence settings from custom presets



Ensure the video frame rate matches the sequence



Ensure the video frame rate matches the sequence



Scale video to correct size, ensuring any watermarks are cropped off, as well as getting rid of black bars on the sides or top and bottom.



Cover MPAA logo, if present, with black video


Exporting soundtrack


Edit audio in Soundbooth using Render and Replace



Save soundtrack as multichannel WAV, ensuring Sample Type is set to 24 bit. You'll need to give it a new name; call it something like trl_sound.wav.


Exporting picture sequence

Click on the timeline then go to File -> Export -> Media


Export picture as sequence of JPEG 2000 images.


Make sure the aspect ratio is correct (1998x1080 for Flat and 2048x858 for Scope). Also, make sure you save the j2c 's in its own folder within the working folder e.g. TRL J2C (can be done by clicking 'Output Name'.) Press Export when ready (takes around 15-20 mins for 2 minute trailer.)

Creating the DCP

Open OpenDCP to create the DCP for the trailer


Create audio MXF. Change MXF type to WAV and Sound Input Type to Multi-Channel. The input file should be be the trailer audio WAV file. The output should be called sound.



Create picture MXF. Select the folder in which the j2c's were exported to. Call the output picture.



Create DCP XML files.


Give an appropriate name/annotation. Make sure kind is set to trailer. Picture/sound input files should be the MXF's you made before. Note that the DCP can only be created if the number of frames match up. Click Create DCP and you are prompted to select a folder; create one with the same name given to the DCP and select that.

Ingesting and testing

Copy the folder containing the DCP into DCinema/WSC_HOMEMADE_TRAILERS (in FILMBANK).