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# Spatial Media Metadata Injector
A tool for manipulating spatial media
([spherical video](../docs/spherical-video-rfc.md) and
[spatial audio](../docs/spatial-audio-rfc.md)) metadata in MP4 and MOV files.
It can be used to inject spatial media metadata into a file or validate metadata
in an existing file.
## Usage
[Python 2.7](https://www.python.org/downloads/) must be used to run the tool.
From within the directory above `spatialmedia`:
#### Help
python spatialmedia -h
Prints help and usage information.
#### Examine
python spatialmedia <files...>
For each file specified, prints spatial media metadata contained in the file.
#### Inject
python spatialmedia -i [--stereo=(none|top-bottom|left-right)] [--spatial-audio] <input> <output>
Saves a version of `<input>` injected with spatial media metadata to `<output>`.
`<input>` and `<output>` must not be the same file.
##### --stereo
Selects the left/right eye frame layout; see the `StereoMode` element in the
[Spherical Video RFC](../docs/spherical-video-rfc.md) for more information.
Options:
- `none`: Mono frame layout.
- `top-bottom`: Top half contains the left eye and bottom half contains the
right eye.
- `left-right`: Left half contains the left eye and right half contains the
right eye.
##### --spatial-audio
Enables injection of spatial audio metadata. If enabled, the file must contain a
4-channel first-order ambisonics audio track with ACN channel ordering and SN3D
normalization; see the [Spatial Audio RFC](../docs/spatial-audio-rfc.md) for
more information.
## Building standalone GUI application
Install [PyInstaller](http://pythonhosted.org/PyInstaller/), then run the
following:
pyinstaller spatial_media_metadata_injector.spec
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