linux libwebp如何进行解码

sudo apt-get install libwebp-dev

sudo yum install libwebp-devel

#<span>include <stdio.h></span>
#<span>include <stdlib.h></span>
#<span>include <webp/decode.h></span>

int main(<span>int argc, char *argv[])</span> {
    if (argc != 3) {
        printf("Usage: %s <input_file> <output_file>\n", argv[0]);
        return 1;
    }

    const char *input_file = argv[1];
    const char *output_file = argv[2];

    FILE *infile = fopen(input_file, "rb");
    if (!infile) {
        perror("Error opening input file");
        return 1;
    }

    size_t width, height;
    uint8_t *image_data = fread(infile, 1, 1024, infile);
    if (!image_data) {
        perror("Error reading input file");
        fclose(infile);
        return 1;
    }

    WebPDecoderConfig config;
    WebPInitDecoderConfig(&config);
    config.output_format = WEBP_FORMAT_RGBA;
    config.output_size = width * height * 4;

    int decode_status = WebPDecodeRGBA(image_data, image_data + fread(infile, 1, 1024, infile), &width, &height, &config);
    if (decode_status != VP8_DECODE_OK) {
        fprintf(stderr, "Error decoding WebP file\n");
        free(image_data);
        fclose(infile);
        return 1;
    }

    infile = fopen(output_file, "wb");
    if (!infile) {
        perror("Error opening output file");
        free(image_data);
        return 1;
    }

    fwrite(image_data, 1, width * height * 4, infile);
    fclose(infile);
    free(image_data);

    printf("WebP file decoded successfully and saved to %s\n", output_file);
    return 0;
}

gcc -o webp_decoder webp_decoder.c -lwebp

./webp_decoder input.webp output.png