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43 lines
1.0 KiB
Markdown
43 lines
1.0 KiB
Markdown
# WebP encoder
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- Source: <https://github.com/webmproject/libwebp>
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- Version: v0.6.1
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## Dependencies
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- Docker
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## Example
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See `example.html`
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## API
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### `int version()`
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Returns the version of libwebp as a number. va.b.c is encoded as 0x0a0b0c
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### `uint8_t* create_buffer(int width, int height)`
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Allocates an RGBA buffer for an image with the given dimension.
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### `void destroy_buffer(uint8_t* p)`
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Frees a buffer created with `create_buffer`.
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### `void encode(uint8_t* image_buffer, int image_width, int image_height, float quality)`
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Encodes the given image with given dimension to WebP. `quality` is a number between 0 and 100. The higher the number, the better the quality of the encoded image. The result is implicitly stored and can be accessed using the `get_result_*()` functions.
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### `void free_result()`
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Frees the result created by `encode()`.
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### `int get_result_pointer()`
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Returns the pointer to the start of the buffer holding the encoded data.
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### `int get_result_size()`
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Returns the length of the buffer holding the encoded data.
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