8d57a60114
The docs listed the ffmpeg command as `create-video` but it seems that the actual command is `frames-to-video`. Reviewed-on: https://projects.blender.org/studio/flamenco/pulls/104333 Reviewed-by: Sybren A. Stüvel <sybren@blender.org>
106 lines
6.8 KiB
Markdown
106 lines
6.8 KiB
Markdown
---
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title: List of Commands
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weight: 6
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---
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The following commands are implemented in Flamenco Worker.
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{{< toc >}}
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## Blender: `blender-render`
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Runs Blender. Command parameters:
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| Parameter | Type | Description |
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|--------------|------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `exe` | `string` | Path to a Blender exeuctable. Typically the expansion of the `{blender}` [variable][variables]. If set to `"blender"`, the Worker performs a search on `$PATH` and on Windows will use the file association for the `.blend` extension to find Blender |
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| `exeArgs` | `string` | CLI arguments to use before any other argument. Typically the expansion of the `{blenderargs}` [variable][variables] |
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| `argsBefore` | `[]string` | Additional CLI arguments defined by the job compiler script, to go before the blend file. |
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| `blendfile` | `string` | Path of the blend file to open. |
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| `args` | `[]string` | Additional CLI arguments defined by the job compiler script, to go after the blend file name. |
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[variables]: {{< ref "/usage/variables" >}}
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The constructed CLI invocation will be `{exe} {exeArgs} {argsBefore} {blendfile} {args}`.
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Flamenco Worker monitors the logging of Blender; lines like `Saved: filename.jpg` are recognised and sent as preview images to Flamenco Manager.
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## FFmpeg: `frames-to-video`
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Uses FFmpeg to convert an image sequence to a video file.
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| Parameter | Type | Description |
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|--------------|------------|-----------------------------------------------------------------------------------------------------------------------------------------|
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| `exe` | `string` | Path to the `ffmpeg` executable. If it is set to `"ffmpeg"` the Worker will look in its `tools` directory first, and search on `$PATH`. |
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| `exeArgs` | `string` | Its CLI parameters defined by the Manager. |
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| `fps` | `float64` | Frames per second of the video file. |
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| `inputGlob` | `string` | Glob of input files. |
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| `outputFile` | `string` | File to save the video to. |
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| `argsBefore` | `[]string` | CLI arguments to use before the |
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| `args` | `[]string` | Additional CLI arguments defined by the job compiler script, to between the input and output filenames. |
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The constructed CLI invocation will be `{exe} {exeArgs} {argsBefore} {platform-dependent inputGlob} {args} -r {fps} {outputFile}`, where `{platform-dependent inputGlob}` is determined by the OS of the executing Flamenco Worker.
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## File Management: `move-directory`
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Moves a directory from one path to another.
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| Parameter | Type | Description |
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|-----------|----------|--------------------------------|
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| `src` | `string` | Path of the directory to move. |
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| `dest` | `string` | Destination to move it to. |
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If the destination directory already exists, it is first moved aside to a timestamped path `{dest}-{YYYY-MM-DD_HHMMSS}` to its name. The tiemstamp is the 'last modified' timestamp of that existing directory.
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## File Management: `copy-file`
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Copies a file from one location to another.
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| Parameter | Type | Description |
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|-----------|----------|-----------------------------------------------------------------------------------|
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| `src` | `string` | Path of the file to copy. Must be an absolute path. |
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| `dest` | `string` | Destination to copy it to. Must be an absolute path. This path may not yet exist. |
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## Misc: `exec`
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Run an executable. This can be any executable. The command succeeds when the
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executable exit status is `0`, and fails otherwise. The executable needs to stop
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running (or fork) in order for the Worker to consider the command 'done'.
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The executable is run directly, and *not* via a shell invocation. To run a shell
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command, use something like `{exe: "/bin/bash", args: ["-c", "echo", "hello
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world"]}`.
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{{< hint type=info >}}
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If there is a specific command for the functionality you need, like
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`blender-render` or `ffmpeg`, use those commands instead. They are aware of
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cross-platform differences, and know more about the program they are running.
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For example, the `blender-render` command sends rendered images to the Manager
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to show in the web interface, and `ffmpeg` will change its commandline arguments
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depending on the platform it runs on.
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{{< /hint >}}
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| Parameter | Type | Description |
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|-----------|------------|------------------------|
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| `exec` | `string` | The executable to run. |
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| `args` | `[]string` | Commandline arguments. |
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## Misc: `echo`
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Writes a message to the task log.
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| Parameter | Type | Description |
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|-----------|----------|---------------------|
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| `message` | `string` | The message to log. |
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## Misc: `sleep`
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Does nothing for a period of time.
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| Parameter | Type | Description |
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|-----------------------|------------------|--------------------------------------------------------------------|
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| `duration_in_seconds` | `float` or `int` | The amount of time to sleep for, in seconds. Must be non-negative. |
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