Function avifEncoderWriteSampleTransformTokens

src/write.c:1067–1087

}

static avifResult avifEncoderWriteSampleTransformTokens(avifRWStream * s, const avifSampleTransformExpression * expression)
{
    AVIF_ASSERT_OR_RETURN(expression->count <= 255);
    AVIF_CHECKRES(avifRWStreamWriteU8(s, (uint8_t)expression->count)); // unsigned int(8) token_count;

    for (uint32_t t = 0; t < expression->count; ++t) {
        const avifSampleTransformToken * token = &expression->tokens[t];

        if (token->type == AVIF_SAMPLE_TRANSFORM_CONSTANT) {
            AVIF_CHECKRES(avifRWStreamWriteU8(s, token->type)); // unsigned int(8) token;
            const uint32_t constant = (uint32_t)token->constant;
            AVIF_CHECKRES(avifRWStreamWriteU32(s, constant)); // signed int(1<<(bit_depth+3)) constant;
        } else if (token->type == AVIF_SAMPLE_TRANSFORM_INPUT_IMAGE_ITEM_INDEX) {
            AVIF_CHECKRES(avifRWStreamWriteU8(s, token->inputImageItemIndex)); // unsigned int(8) token;
        } else {
            // Operator.
            AVIF_CHECKRES(avifRWStreamWriteU8(s, token->type)); // unsigned int(8) token;
        }
    }
    return AVIF_RESULT_OK;
}

static avifResult avifEncoderWriteSampleTransformPayload(avifEncoder * encoder, avifRWData * data)
{