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A library for OpenTimelineIO integration with ShotGrid

Project description

SG Otio, an OpenTimelineIO ShotGrid Library

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A library to represent OpenTimelineIO data in ShotGrid, and vice versa.


SG Otio is currently in Public Alpha. That means that it may be missing some essential features and there are large changes planned. During this phase we actively encourage you to provide feedback, requests, comments, and/or contributions.


SG Python API

The SG Python API is not available on PyPi and must be manually installed from github, e.g. pip install git+


sg-otio requires ffmpeg to be installed, and ffmpeg must be in the PATH.

  • Binaries can be downloaded from FFmpeg download page, in which case the binaries should be added to the PATH environment variable.
  • A package manager can be used, for example on MacOS, brew install ffmpeg, in which case the PATH should already be updated by the package manager.

sg-otio package

SG Otio can be installed from PyPi, e.g. pip install sg-otio

SG Otio can also be installed from sources.

  • Get a local copy of this repo: git clone
  • Install it with pip: pip install ./sg-otio

sg-otio usage

You can access the help with sg-otio read --help, sg-otio write --help, or sg-otio compare --help.

ShotGrid login information

You can provide Shotgrid login information in 3 different ways:

  • --login <username> --password <password>
  • --script-name <script name> --api-key <api key>
  • --session-token <session token>

Reading a Cut from SG

Read a Cut from SG and either output it in OTIO format or write it to a file. Any format suppported by OpenTimelineIO's standard adapters is supported.


sg-otio read --sg-site-url URL --session-token TOKEN --cut-id CUT_ID
sg-otio read --sg-site-url URL --session-token TOKEN --cut-id CUT_ID --file output.otio
sg-otio read --sg-site-url URL --session-token TOKEN --cut-id CUT_ID --file output.xml --adapter-name fcp_xml
sg-otio read --settings SETTINGS.JSON --sg-site-url URL --session-token TOKEN --cut-id CUT_ID --file output.xml --adapter-name fcp_xml

Writing a Cut to SG

Write a Video Track to SG as a Cut. Example:

sg-otio write -u URL --session-token TOKEN --entity-type Cut --entity-id CUT_ID --file INPUT.edl --movie --settings SETTINGS.JSON

Comparing a Video Track to a SG Cut

Read a Video Track from an OpenTimelinio source and compare it to an existing SG Cut. Any format suppported by OpenTimelineIO's standard adapters is supported for the source. The video Track can be written to SG as a new Cut by adding the --write argument. The new SG Cut will be linked to the SG Entity the previous SG Cut is linked to. Examples:

sg-otio compare --sg-site-url URL  --session-token TOKEN --file INPUT OTIO --cut-id CUT_ID
sg-otio compare --sg-site-url URL  --session-token TOKEN --file INPUT OTIO --cut-id CUT_ID --write

Settings file

Some settings for sg-otio read and write can be stored in a JSON file, and passed to sg-otio with --settings[-s] path/to/SETTINGS.JSON. This is what such file would contain with the default settings:

  "default_head_in": 1001,
  "default_head_duration": 8,
  "default_tail_duration": 8,
  "use_clip_names_for_shot_names": false,
  "clip_name_shot_regexp": null,
  "local_storage_name": "primary",
  "versions_path_template": "{PROJECT}/{LINK}/{YYYY}{MM}{DD}/cuts",
  "version_names_template": null,
  "create_missing_versions": true,
  "timecode_in_to_frame_mapping_mode": 1,
  "timecode_in_to_frame_relative_mapping": ["00:00:00:01", 1001],
  "use_smart_fields": false,
  "shot_cut_fields_prefix": null,
  "shot_omit_status": "omt",
  "shot_reinstate_status": "Previous Status",
  "shot_reinstate_status_default": "act",
  "reinstate_shot_if_status_is": ["omt", "hld"]

Default Head In, Default Head Duration, Default Tail Duration

When creating new Shots in ShotGrid, the values to use for the start frame and handles.

Use Clip Names for Shot Names

If set to True, the Clip name will be used as a Shot name if it can't be computed from locators nor comments in the EDL.

Clip Name Shot Regexp

If set, use a regular expression to extract the Shot name from the Clip name.

Create Missing Versions

If set to True, for Clips with media references that don't have a version in ShotGrid, a new version will be created in ShotGrid.

  • For an EDL without media references, a movie of the Cut needs to be passed to sg-otio, which will allow to extract the Versions from the Cut movie.
  • For formats like Premiere XML, this means that media references existing in the XML file will be published to ShotGrid.

Local storage name

When creating missing Versions, the SG local storage to use to publish the files to.

Versions Path Template

When creating missing Versions, the path to use to publish the files to.

This is a relative path from the local storage chosen.

The following keys are available: PROJECT, CUT_TITLE, LINK, HH, DD, MM, YY, YYYY

Example valid templates:

  • {PROJECT}/{LINK}/{YYYY}{MM}{DD}/cuts (default)

Version Names Template

If not specified, the Version name will be the Clip name. If specified, the Version name will be computed using the template.

The following keys are available: CLIP_NAME, CUT_ITEM_NAME, SHOT, CLIP_INDEX, UUID

The CLIP_NAME and CUT_ITEM_NAME are almost the same, but the CUT_ITEM_NAME is guaranteed to be unique in a track. For example, if there are two clips with the name clip1, their cut item names will be clip1 and clip1_001.

The CLIP_INDEX is the index of the clip in the track (starting from 1, and counting only clips, not gaps or other elements).

The UUID is 6 digits long.

Even though versions with the same names are allowed, it is recommended to use keys that guarantee the unicity of the names, like CUT_ITEM_NAME, CLIP_INDEX, or UUID.

Example valid templates:

  • {CLIP_NAME}_{UUID} (default)
  • {CLIP_NAME}_{CLIP_INDEX:04d} (adds some leading zeros)

Timecode In to Frame Mapping Mode

Different timecode in values to frame mapping modes

Three mapping modes are available, which are only relevant for straight imports (without comparing to a previous Cut):

  • 0: Automatic. Timecode in is mapped to the Shot head in.
  • 1: Absolute. Timecode is converted to an absolute frame number.
  • 2: Relative. timecode in is converted to an arbitrary frame number specified through settings. Example: ["00:00:00:01", 1001]

Timecode In to Frame Relative Mapping.

If the Timecode In to Frame Mapping Mode is set to 2, this setting can be used to specify how to convert the timecode to an arbitrary frame number.

Use Smart Fields

If set to True, the Smart Cut Fields will be used to fill the Shot fields.

Shot Cut Fields Prefix

If set, the Shot Cut Fields will be custom fields that use this prefix, e.g. sg_PREFIX_cut_in, sg_PREFIX_cut_out, etc.

Omitting and Reinstating Shots

If some Shots are omitted from one Cut to the other, their Status will be set to the shot_omit_status setting value. Shots which appear again in a Cut will be reinstated if their current status is one of the statuses set with the reinstate_shot_if_status_is setting. Their status will be set to the value set with the shot_reinstate_status setting, unless it is the special "Previous Status" value. In this case the status they had before being omitted will be set.

To determine the previous status, it relies on EventLogEntries, which means that if it can't find one (e.g. they were purged), it will use the value set with the shot_reinstate_status_default setting.


SG Otio is open source software. Please see the LICENSE.txt for details.

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