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https://github.com/cirocosta/asciinema-edit
asciinema casts post-production tools
https://github.com/cirocosta/asciinema-edit
asciinema golang post-processing terminal terminal-recording termtosvg tty
Last synced: about 2 months ago
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asciinema casts post-production tools
- Host: GitHub
- URL: https://github.com/cirocosta/asciinema-edit
- Owner: cirocosta
- License: mit
- Created: 2018-07-02T12:56:39.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2023-06-28T22:07:22.000Z (about 1 year ago)
- Last Synced: 2024-06-28T01:47:57.675Z (3 months ago)
- Topics: asciinema, golang, post-processing, terminal, terminal-recording, termtosvg, tty
- Language: Go
- Homepage: https://ops.tips
- Size: 2.01 MB
- Stars: 308
- Watchers: 6
- Forks: 20
- Open Issues: 13
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
asciinema-edit 🎬
Auxiliary tools for dealing with ASCIINEMA casts
`asciinema-edit` is a tool who's purpose is to post-process asciinema casts (V2), either from [asciinema](https://github.com/asciinema/asciinema) itself or [termtosvg](https://github.com/nbedos/termtosvg).
Three transformations have been implemented so far:
- [`quantize`](#quantize): Updates the cast delays following quantization ranges; and
- [`cut`](#cut): Removes a certain range of time frames;
- [`speed`](#speed): Updates the cast speed by a certain factor.
Having those, you can improve your cast by:
- speeding up parts that are not very important;
- reducing delays between commands; and
- completely removing parts that don't add value to the cast.
### Installation
Being a Golang application, you can either build it yourself with `go get` or fetch a specific version from the [Releases page](https://github.com/cirocosta/asciinema-edit/releases):
```sh
#Using `go`, fetch the latest from `master`
go get -u -v github.com/cirocosta/asciinema-edit
#Retrieving from GitHub releases
VERSION=0.0.6
curl -SOL https://github.com/cirocosta/asciinema-edit/releases/download/$VERSION/asciinema-edit_$VERSION_linux_amd64.tar.gz
```
### Quantize
```sh
NAME:
asciinema-edit quantize - Updates the cast delays following quantization ranges.
The command acts on the delays between the frames, reducing such
timings to the lowest value defined in a given range that they
lie in.
For instance, consider the following timestamps:
1 2 5 9 10 11
Assuming that we quantize over [2,6), we'd cut any delays between 2 and
6 seconds to 2 second:
1 2 4 6 7 8
This can be more easily visualized by looking at the delay quantization:
delta = 1.000000 | qdelta = 1.000000
delta = 3.000000 | qdelta = 2.000000
delta = 4.000000 | qdelta = 2.000000
delta = 1.000000 | qdelta = 1.000000
delta = 1.000000 | qdelta = 1.000000
If no file name is specified as a positional argument, a cast is
expected to be served via stdin.
Once the transformation has been performed, the resulting cast is
either written to a file specified in the '--out' flag or to stdout
(default).
EXAMPLES:
Make the whole cast have a maximum delay of 2s:
asciinema-edit quantize --range 2 ./123.cast
Make the whole cast have time delays between 300ms and 1s cut to
300ms, delays between 1s and 2s cut to 1s and any delays bigger
than 2s, cut down to 2s:
asciinema-edit quantize \
--range 0.3,1 \
--range 1,2 \
--range 2 \
./123.cast
USAGE:
asciinema-edit quantize [command options] [filename]
OPTIONS:
--range value quantization ranges (comma delimited)
--out value file to write the modified contents to
```
### Speed
```sh
NAME:
asciinema-edit speed - Updates the cast speed by a certain factor.
If no file name is specified as a positional argument, a cast is
expected to be served via stdin.
If no range is specified (start=0, end=0), the whole event stream
is processed.
Once the transformation has been performed, the resulting cast is
either written to a file specified in the '--out' flag or to stdout
(default).
EXAMPLES:
Make the whole cast ("123.cast") twice as slow:
asciinema-edit speed --factor 2 ./123.cast
Cut the duration in half:
asciinema-edit speed --factor 0.5 ./123.cast
Make only a certain part of the video twice as slow:
asciinema-edit speed \
--factor 2 \
--start 12.231 \
--factor 45.333 \
./123.cast
USAGE:
asciinema-edit speed [command options] [filename]
OPTIONS:
--factor value number by which delays are multiplied by (default: 0)
--start value initial frame timestamp (default: 0)
--end value final frame timestamp (default: 0)
--out value file to write the modified contents to
```
### Cut
```sh
NAME:
asciinema-edit cut - Removes a certain range of time frames.
If no file name is specified as a positional argument, a cast is
expected to be served via stdin.
Once the transformation has been performed, the resulting cast is
either written to a file specified in the '--out' flag or to stdout
(default).
EXAMPLES:
Remove frames from 12.2s to 15.3s from the cast passed in the commands
stdin.
cat 1234.cast | \
asciinema-edit cut \
--start=12.2 --end=15.3
Remove the exact frame at timestamp 12.2 from the cast file named
1234.cast.
asciinema-edit cut \
--start=12.2 --end=12.2 \
1234.cast
USAGE:
asciinema-edit cut [command options] [filename]
OPTIONS:
--start value initial frame timestamp (required) (default: 0)
--end value final frame timestamp (required) (default: 0)
--out value file to write the modified contents to
```