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Add a function to validate a WebPDecoderConfig

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This echoes WebPValidateConfig for encoding.

Change-Id: Ib404d55c7af4d0755644879ec491e3998e6b5e8d
This commit is contained in:
Vincent Rabaud
2025-01-30 10:02:09 +01:00
parent 7ed2b10ef0
commit 6a22b6709c
4 changed files with 73 additions and 7 deletions
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11
src/webp/decode.h
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@ -20,7 +20,7 @@
extern "C" {
#endif
#define WEBP_DECODER_ABI_VERSION 0x0209 // MAJOR(8b) + MINOR(8b)
#define WEBP_DECODER_ABI_VERSION 0x0210 // MAJOR(8b) + MINOR(8b)
// Note: forward declaring enumerations is not allowed in (strict) C and C++,
// the types are left here for reference.
@ -451,7 +451,9 @@ struct WebPDecoderOptions {
// Will be snapped to even values.
int crop_width, crop_height; // dimension of the cropping area
int use_scaling; // if true, scaling is applied _afterward_
int scaled_width, scaled_height; // final resolution
int scaled_width, scaled_height; // final resolution. if one is 0, it is
// guessed from the other one to keep the
// original ratio.
int use_threads; // if true, use multi-threaded decoding
int dithering_strength; // dithering strength (0=Off, 100=full)
int flip; // if true, flip output vertically
@ -479,6 +481,11 @@ WEBP_NODISCARD static WEBP_INLINE int WebPInitDecoderConfig(
return WebPInitDecoderConfigInternal(config, WEBP_DECODER_ABI_VERSION);
}
// Returns true if 'config' is non-NULL and all configuration parameters are
// within their valid ranges.
WEBP_NODISCARD WEBP_EXTERN int WebPValidateDecoderConfig(
const WebPDecoderConfig* config);
// Instantiate a new incremental decoder object with the requested
// configuration. The bitstream can be passed using 'data' and 'data_size'
// parameter, in which case the features will be parsed and stored into