IFIscripts documentation

table of contents

1. summary
2. Transcodes
   • makeffv1.py
   • bitc.py
   • prores.py
3. Digital Cinema Package Scripts
   • dcpaccess.py
   • dcpfixity.py
   • dcpsubs2srt.py
4. Fixity Scripts
   • moveit.py
   • manifest.py
   • sha512deep.py
   • validate.py
   • batchfixity.py
5. Image Sequences
   • makedpx.py
   • seq2ffv1.py
   • seq2prores.py
   • seq.py
   • oeremove.py
   • renumber.py
   • seq2dv.py
   • batchmetadata.py
   • batchrename.py
6. Quality Control
   • qctools.py
7. Specific Workflows
   • mezzaninecheck.py
8. Misc
   • update.py
9. Experimental-Premis
   • premis.py
   • revtmd.py
   • as11fixity.py

summary

Scripts for use in the IFI Irish Film Archive. Scripts have been tested in OSX/Windows 7 (sometimes windows 10) and Ubuntu 14.04. The aim is to make cross-platform scripts, but please get in touch with any issues. It is best to download all scripts, as some of them share code.

Most scripts take either a file or a directory as their input, for example makeffv1.py filename.mov or premis.py path/to/folder_of_stuff. (It's best to just drag and drop the folder or filename into the terminal)

Note: Documentation template has been copied from mediamicroservices

Transcodes

makeffv1.py

• Transcodes to FFV1.mkv and performs framemd5 validation. Accepts single files or directories (all video files in a directory will be processed). CSV report is generated which gives details on losslessness and compression ratio.
• Usage for single file - makeffv1.py filename.mov
• Usage for batch processing all videos in a directory - makeffv1.py directory_name

bitc.py

• Create timecoded/watermarked h264s for single files or a batch process.
• Usage for single file - bitc.py filename.mov
• Usage for batch processing all videos in a directory - bitc.py directory_name
• This script has many extra options, such as deinterlacing, quality settings, rescaling. Use bitc.py -h to see all options

prores.py

• Transcode to prores.mov for single/multiple files.
• Usage for single file - prores.py filename.mov
• Usage for batch processing all videos in a directory - prores.py directory_name
• This script has many extra options, such as deinterlacing, quality settings, rescaling. Use prores.py -h to see all options

Digital Cinema Package Scripts

dcpaccess.py

• Create h264 (default) or prores transcodes (with optional subtitles) for unencrypted, single/multi reel Interop/SMPTE DCPs. The script will search for all DCPs in subdirectories, process them one at a time and export files to your Desktop.
• Usage: dcpaccess.py dcp_directory
• Use -p for prores output, and use -hd to rescale to 1920:1080 while maintaining the aspect ratio.
• Dependencies: ffmpeg must be compiled with libopenjpeg - brew install ffmpeg --with-openjpeg.
• Python dependencies: lxml required.
• Further options can be viewed with dcpaccess.py -h

dcpfixity.py

• Verify internal hashes in a DCP and write report to CSV. Optional (experimental) bagging if hashes validate. The script will search for all DCPs in subdirectories, process them one at a time and generate a CSV report.
• Usage: dcpfixity.py dcp_directory
• Further options can be viewed with dcpfixity.py -h

dcpsubs2srt.py

• Super basic but functional DCP XML subtitle to SRT conversion. This code is also contained in dcpaccess.py
• Usage: dcpsubs2srt.py subs.xml

Fixity Scripts

moveit.py

• Copies a directory, creating a md5 manifest at source and destination and comparing the two. Skips hidden files and directories.
• Usage: moveit.py source_dir destination_dir
• Dependencies: OSX requires gcp - brew install coreutils

manifest.py

• Creates relative md5 checksum manifest of a directory.
• Usage: manifest.py directory

sha512deep.py

• Quick proof of concept sha512 checksum manifest generator as not many command line tools support sha512 right now. name is a play on the hashdeep toolset.
• Usage: sha512deep.py directory

validate.py

• Validate md5 sidecar manifest. Currently the script expects two spaces between the checksum and the filename.
• Usage: validate.py /path/to/manifest.md5

batchfixity.py

• Batch MD5 checksum generator. Accepts a parent folder as input and will generate manifest for each subfolder. Designed for a specific IFI Irish Film Archive workflow.
• Usage: batchfixity.py /path/to/parent_folder

Image Sequences

makedpx.py

• Transcode TIFFs losslessly to DPX. Processess all sequeneces in every subdirectory. WARNING - Currently relies on a local config file - soon to be removed!
• Framemd5s of source and output are created and verified for losslessness.
• Whole file manifest is created for all files.
• Usage: makedpx.py parent_folder - generally we have 10 sequences in subfolders, so we pass the parent folder as input.

seq2ffv1.py

• Work in progress -more testing to be done.
• Recursively batch process image sequence folders and transcode to a single ffv1.mkv.
• Framemd5 files are generated and validated for losslessness.
• Whole file manifests are also created.
• Usage - seq2ffv1.py parent_folder

seq2prores.py

• Specific IFI workflow that expects a particular folder path:
• Recursively batch process image sequence folders with seperate WAV files and transcode to a single Apple Pro Res HQ file in a MOV container. PREMIS XML log files are generated with hardcoded IFI values for the source DPX sequence and the transcoded mezzanine file in the respective /metadata directory
• A whole file MD5 manifest of everything in the SIP are also created. Work in progress - more testing to be done.
• Usage - seq2prores.py directory
• seq2prores accepts multiple parent folders, so one can run seq2prores.py directory1 directory2 directory3 etc

seq.py

• Transcodes a TIFF sequence to 24fps v210 in a MOV container.
• Usage: seq.py path/to/tiff_folder and output will be stored in the parent directory.

playerseq.py

• Transcodes an image sequence & WAV to 24fps ProRes 4:2:2 HQ in a MOV container.
• Usage: playerseq.py path/to/parent_image__folder.The script will then ask you to drag and drop the WAV file. The location is currently hardcoded to facilitate a workflow.

oeremove.py

• IFI specific script that removes OE### numbers from the head of an image sequence filename.
• Usage - oeremove.py directory.

renumber.py

• Renames TIFF files in an image sequence so that they start from ZERO (000000)
• Usage - renumber.py directory

seq2dv.py

• Transcodes a TIFF sequence to 24fps 720x576 DV in a MOV container.
• Usage: seq.py path/to/tiff_folder and output will be stored in the parent directory.

batchmetadata.py

• Traverses through subdirectories trying to find DPX and TIFF files and creates mediainfo and mediatrace XML files.
• Usage: batchmetadata.py path/to/parent_directory and output will be stored in the parent directory.

batchrename.py

• Renames TIFF files in an image sequence except for numberic sequence and file extension.
• Usage - batchrename.py directory - enter new filename when prompted

Quality Control

qctools.py

• Generate QCTools xml.gz sidecar files which will load immediately in QCTools.
• Usage for single file - qctools.py filename.mov
• Usage for batch processing all videos in a directory - qctools.py directory_name

Specific Workflows

mezzaninecheck.py

• Checks folders in order to see if either 0 or >1 files exist in a mezzanine/objects folder.
• Usage: treatedaudio.py /path/to/parent_folder

Misc

update.py

• Updates IFIscripts to the latest git head if the following directory structure exists in the home directory: ifigit/ifiscripts
• Usage: update.py

Experimental-Premis

premis.py

• Work in progress PREMIS implementation. This PREMIS document will hopefully function as a growing log file as an asset makes its way through a workflow.
• Requries pyqt4 (GUI) and lxml (xml parsing)
• Usage - premis.py filename.

revtmd.py

• Beta/defuncy sript that attempted to document creation process history metadata using the reVTMD standard.

as11fixity.py

• Work in progress script by @mahleranja and @ecodonohoe
• There is a bash script in a different repository that works quite well for this purpose but that is OSX only.