react-native-create-thumbnail
iOS/Android thumbnail generator with storage/cache management and support for both local and remote videos. react-native-create-thumbnail
is a wrapper around
AVAssetImageGenerator
(iOS) and MediaMetadataRetriever
(Android)
Getting started
-
Install library from
npm
npm i react-native-create-thumbnail
or
yarn add react-native-create-thumbnail
-
Link native code
With autolinking (react-native 0.60+)
cd ios && pod install
Pre 0.60
react-native link react-native-create-thumbnail
Usage
import { createThumbnail } from "react-native-create-thumbnail";
createThumbnail({
url: '<path to video file>',
timeStamp: 10000,
})
.then(response => console.log({ response }))
.catch(err => console.log({ err }));
Request Object
Property | Type | Description |
---|---|---|
url |
String (required) |
Path to video file (local or remote) |
timeStamp |
Number (default 0 ) |
Thumbnail timestamp (in milliseconds) |
format |
String (default jpeg ) |
Thumbnail format, can be one of: jpeg , or png
|
dirSize |
Number (default 100 ) |
Maximum size of the cache directory (in megabytes). When this directory is full, the previously generated thumbnails will be deleted to clear about half of it's size. |
headers | Object |
Headers to load the video with. e.g. { Authorization: 'someAuthToken' }
|
cacheName |
String (optional) |
Cache name for this thumbnail to avoid duplicate generation. If specified, and a thumbnail already exists with the same cache name, it will be returned instead of generating a new one. |
Response Object
Property | Type | Description |
---|---|---|
path | String |
Path to generated thumbnail |
size | Number |
Size (in bytes) of thumbnail |
mime | String |
Mimetype of thumbnail |
width | Number |
Thumbnail width |
height | Number |
Thumbnail height |
Notes
Requires following Permissions on android
READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE
Limitations
- Remote videos aren't supported on android sdk_version < 14.
- This is a Native Module, so it won't work in expo managed projects.
- This library heavily depends on the native API's to generate the thumbnails. Thus it can only generate from the video formats/codecs that are supported by the device's OS.
Credits
-
react-native-thumbnail
- A great source of inspiration - This project was bootstrapped with
create-react-native-module
Maintenance Status
Active: Bug reports, feature requests and pull requests are welcome.